{"title":"DX Vertical Antennas — 160-6M HF, No Radials | Greyline","description":"\n\u003cstyle\u003e\n.gl-eyebrow{font-size:11px;text-transform:uppercase;letter-spacing:2.5px;color:#B8960C;font-weight:700;margin-bottom:14px;display:block}\n.gl-hero{font-size:26px;font-weight:700;color:#1a1a1a;margin:0 0 12px;line-height:1.25}\n.gl-body{font-size:14px;color:#555;line-height:1.75;margin:0 0 16px}\n.gl-sse{display:grid;grid-template-columns:1fr 1fr 1fr;gap:16px;margin:24px 0}\n.gl-col{background:#fff;border:1px solid #DDD8CC;border-top:3px solid #B8960C;padding:18px}\n.gl-col h4{font-size:12px;font-weight:700;color:#B8960C;margin:0 0 8px;text-transform:uppercase;letter-spacing:1px}\n.gl-col p{font-size:13px;color:#555;line-height:1.6;margin:0}\n.gl-divider{border:none;border-top:1px solid #DDD8CC;margin:24px 0}\n.gl-h2{font-size:19px;font-weight:700;color:#1a1a1a;margin:28px 0 10px}\n.gl-list{margin:0 0 18px 18px;padding:0}\n.gl-list li{font-size:14px;color:#555;line-height:1.65;margin-bottom:7px}\n.gl-proof{background:#1a1a1a;color:#e8e6e0;padding:18px 22px;margin:24px 0;font-size:13px;line-height:1.7;border-left:4px solid #B8960C}\n.gl-proof strong{color:#B8960C}\n.gl-cta-row{display:flex;gap:12px;margin-top:24px;flex-wrap:wrap}\n.gl-btn-primary{background:#B8960C;color:#fff;padding:11px 22px;font-size:12px;font-weight:700;text-decoration:none;text-transform:uppercase;letter-spacing:1px;display:inline-block}\n.gl-btn-secondary{background:#fff;color:#1a1a1a;padding:11px 22px;font-size:12px;font-weight:700;text-decoration:none;text-transform:uppercase;letter-spacing:1px;border:1px solid #DDD8CC;display:inline-block}\n\u003c\/style\u003e\n\u003cdiv style=\"background:#fafaf7; padding:32px 24px; border-radius:8px; margin:24px 0;\"\u003e\n  \u003cp style=\"color:#B8960C; font-family:'Courier New',monospace; font-size:12px; letter-spacing:2px; text-transform:uppercase; margin:0 0 12px 0;\"\u003eThe DXV System · 160–6M, No Radials\u003c\/p\u003e\n  \u003ch3 style=\"color:#1a1a1a; font-family:Georgia,serif; font-size:24px; font-weight:normal; margin:0 0 16px 0;\"\u003eA Physicist’s Answer to a DXer’s Problem.\u003c\/h3\u003e\n\n  \u003cp style=\"color:#1a1a1a; font-family:Georgia,serif; font-size:16px; line-height:1.7; margin:0 0 16px 0;\"\u003eHow do you significantly reduce ground coupling — the single largest source of loss in a vertical antenna system — without burying a radial field across your yard? You feed the radiator off-center, elevate the feedpoint, and position the current maximum above the lossy near-field ground. That is the OCF Vertical Dipole Antenna. That is the DXV.\u003c\/p\u003e\n\n  \u003cp style=\"color:#1a1a1a; font-family:Georgia,serif; font-size:16px; line-height:1.7; margin:0 0 16px 0;\"\u003eVDA physics significantly reduces ground coupling. Balanced dipole feedpoint. Lower ground losses. Reduced noise floor. \u003cstrong style=\"color:#B8960C;\"\u003e160 meters through 6 meters from a single feedpoint\u003c\/strong\u003e — including the WARC bands and 6M sporadic-E. Heavy-wall 6061-T6 aircraft-grade aluminum. 316 stainless hardware. ASCE 7-10 wind-rated — height-specific from 55 to 155 MPH.\u003c\/p\u003e\n\n  \u003cp style=\"color:#1a1a1a; font-family:Georgia,serif; font-size:16px; line-height:1.7; margin:0 0 16px 0;\"\u003e\u003cstrong style=\"color:#B8960C;\"\u003eAll-band coverage is the headline.\u003c\/strong\u003e Adding the 9′ DX Whip extends the upper radiator across every band the antenna covers; the geometry happens to peak at 5\/8λ resonance somewhere in the spectrum, where the literature documents up to 3.5 dBi over a 1\/4-wave reference under ideal ground conditions. That single-band peak is a detail. The product is one pole, every allocation.\u003c\/p\u003e\n\n  \u003cp style=\"color:#1a1a1a; font-family:Georgia,serif; font-size:16px; line-height:1.7; margin:0 0 0 0;\"\u003e\u003ca href=\"\/ja\/pages\/antenna-aperture-and-gain\" style=\"color:#B8960C; text-decoration:underline;\"\u003eRead the aperture and gain doctrine →\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"gl-sse\"\u003e\n\u003cdiv class=\"gl-col\"\u003e\n\u003ch4\u003eSmart\u003c\/h4\u003e\n\u003cp\u003eVDA physics significantly reduces ground coupling. Balanced feedpoint. Lower ground-loss. Reduced noise floor. Aperture-optimized for multi-band operation with a single feedline.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"gl-col\"\u003e\n\u003ch4\u003eStrong\u003c\/h4\u003e\n\u003cp\u003eHeavy-wall 6061-T6 aircraft-grade aluminum. 316 stainless hardware. ASCE 7-10 wind-rated — ratings vary by model height, 55–155 MPH. See individual product pages for model-specific wind data. 100% duty-cycle rated.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"gl-col\"\u003e\n\u003ch4\u003eElegant\u003c\/h4\u003e\n\u003cp\u003eClean vertical profile. Mounts on roof edge, rooftop, tower, ground post, or our ground sleeve method. Residential-compatible. No wire forests, no radial fields, no visible compromise.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003chr class=\"gl-divider\"\u003e\n\u003ch3 class=\"gl-h2\"\u003eChoose Your Vertical\u003c\/h3\u003e\n\u003cp class=\"gl-body\"\u003eFive core sizes from 12 ft through 28 ft — each covering 160 meters through 6 meters. No tuning required at the antenna. No pruning. No radials. Add an ATU at the base or in the shack for seamless transceiver matching and you are on the air in under an hour.\u003c\/p\u003e\n\u003cul class=\"gl-list\"\u003e\n\u003cli\u003e\n\u003cstrong\u003e12 ft DXV\u003c\/strong\u003e — Entry-level full-band coverage. Apartment rooftop, small lot, or portable base mount. Wind-rated to 155 MPH (ASCE 7-10).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e16 ft DXV\u003c\/strong\u003e — More aperture is more signal. The EmComm team’s first step up from portable. Wind-rated to 115 MPH.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e20 ft DXV\u003c\/strong\u003e — Core performer. Small yard, suburban rooftop, or rapid-deploy EOC installation. Wind-rated to 90 MPH.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e24 ft DXV\u003c\/strong\u003e — EmComm standard. Embassy-class performance. Chosen by HOA ops \u0026amp; agencies requiring permanent, high-reliability HF infrastructure. Wind-rated to 70 MPH.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e28 ft DXV\u003c\/strong\u003e — Maximum aperture. EOC-grade. The highest-gain configuration in the Greyline VDA line. Wind-rated to 55 MPH. Guy support recommended above 24 ft in high-wind environments.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 class=\"gl-h2\"\u003eThe 5\/8 Wave Gain Engine\u003c\/h3\u003e\n\u003cp class=\"gl-body\"\u003ePair any DXV with our \u003ca style=\"color: #b8960c; font-weight: bold;\" href=\"\/ja\/products\/9-foot-whip-for-greyline-antennas\"\u003e9-ft Adjustable DX Whip\u003c\/a\u003e to hit the 5\/8λ sweet spot on your target bands. Field-tested gain: up to \u003cstrong\u003e+3.5 dBi at the horizon.\u003c\/strong\u003e That is the effective equivalent of doubling your transmitter power — without touching your radio, your license class, or your power limit.\u003c\/p\u003e\n\u003cdiv style=\"background:#fafaf7; padding:32px 24px; border-radius:8px; margin:24px 0;\"\u003e\n  \u003cp style=\"color:#B8960C; font-family:'Courier New',monospace; font-size:12px; letter-spacing:2px; text-transform:uppercase; margin:0 0 12px 0;\"\u003eThe DXV System · 160–6M, No Radials\u003c\/p\u003e\n  \u003ch3 style=\"color:#1a1a1a; font-family:Georgia,serif; font-size:24px; font-weight:normal; margin:0 0 16px 0;\"\u003eA Physicist’s Answer to a DXer’s Problem.\u003c\/h3\u003e\n\n  \u003cp style=\"color:#1a1a1a; font-family:Georgia,serif; font-size:16px; line-height:1.7; margin:0 0 16px 0;\"\u003eHow do you significantly reduce ground coupling — the single largest source of loss in a vertical antenna system — without burying a radial field across your yard? You feed the radiator off-center, elevate the feedpoint, and position the current maximum above the lossy near-field ground. That is the OCF Vertical Dipole Antenna. That is the DXV.\u003c\/p\u003e\n\n  \u003cp style=\"color:#1a1a1a; font-family:Georgia,serif; font-size:16px; line-height:1.7; margin:0 0 16px 0;\"\u003eVDA physics significantly reduces ground coupling. Balanced dipole feedpoint. Lower ground losses. Reduced noise floor. \u003cstrong style=\"color:#B8960C;\"\u003e160 meters through 6 meters from a single feedpoint\u003c\/strong\u003e — including the WARC bands and 6M sporadic-E. Heavy-wall 6061-T6 aircraft-grade aluminum. 316 stainless hardware. ASCE 7-10 wind-rated — height-specific from 55 to 155 MPH.\u003c\/p\u003e\n\n  \u003cp style=\"color:#1a1a1a; font-family:Georgia,serif; font-size:16px; line-height:1.7; margin:0 0 16px 0;\"\u003e\u003cstrong style=\"color:#B8960C;\"\u003eAll-band coverage is the headline.\u003c\/strong\u003e Adding the 9′ DX Whip extends the upper radiator across every band the antenna covers; the geometry happens to peak at 5\/8λ resonance somewhere in the spectrum, where the literature documents up to 3.5 dBi over a 1\/4-wave reference under ideal ground conditions. That single-band peak is a detail. The product is one pole, every allocation.\u003c\/p\u003e\n\n  \u003cp style=\"color:#1a1a1a; font-family:Georgia,serif; font-size:16px; line-height:1.7; margin:0 0 0 0;\"\u003e\u003ca href=\"\/ja\/pages\/antenna-aperture-and-gain\" style=\"color:#B8960C; text-decoration:underline;\"\u003eRead the aperture and gain doctrine →\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"gl-proof\"\u003e\n\u003cstrong\u003eGovernment and agency operators:\u003c\/strong\u003e Greyline DXV systems are in active service at state EOCs, US Embassies, and defense contractor facilities. Section 889 compliant. COTS procurement. 7-year No Questions Asked warranty. Made in the USA.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003e“Night and day difference.”\u003c\/strong\u003e — Bill Cassidy. Switched from end-fed wire to Greyline 24’ DXV. Connected Australia, Japan, and all over the states within days.\u003c\/div\u003e\n\u003ch3 class=\"gl-h2\"\u003eATU Options: Remote or Shack — Both Work Real DX\u003c\/h3\u003e\n\u003cp class=\"gl-body\"\u003eEvery Greyline DXV is designed to work with an automatic antenna tuner at either end of the coax. A remote ATU at the base — such as the LDG RT-100 (100W) — keeps the feedline at a matched 50Ω on every band and minimizes coax loss on longer runs. A desktop shack tuner behind LMR-400 or better is equally effective for most installations. See our \u003ca style=\"color: #b8960c; font-weight: bold;\" href=\"\/ja\/pages\/feedline-physics\"\u003eFeedline Physics guide\u003c\/a\u003e and \u003ca style=\"color: #b8960c; font-weight: bold;\" href=\"\/ja\/blogs\/news\/do-i-really-need-a-tuner-at-the-base-of-my-greyline-flagpole-hf-vertical\"\u003eATU placement explainer\u003c\/a\u003e for the full technical breakdown.\u003c\/p\u003e\n\u003c!-- AUTHORITY ANCHOR BLOCK --\u003e\n\u003cdiv style=\"margin: 32px 0; padding: 24px 28px; background: #fafaf7; border-left: 3px solid #B8960C; font-family: Georgia, 'Times New Roman', serif; font-size: 15px; line-height: 1.7; color: #2a2a2a;\"\u003e\n  \u003cdiv style=\"color: #B8960C; font-size: 11px; letter-spacing: 2.5px; text-transform: uppercase; margin-bottom: 10px;\"\u003eWhy this antenna works\u003c\/div\u003e\n  \u003cp style=\"margin: 0 0 12px 0;\"\u003eEvery Greyline design decision traces back to named, published antenna physics — Zavrel W7SX, Kraus W8JK, Severns N6LF on ground systems, Maxwell W2DU on transmission lines, Lewallen W7EL on modeling. Not opinions. Cited works.\u003c\/p\u003e\n  \u003cp style=\"margin: 0;\"\u003e\u003ca href=\"\/ja\/pages\/authority-sources\" style=\"color: #8B6F0A; text-decoration: none; border-bottom: 1px dotted #B8960C; font-weight: bold;\"\u003eRead the full shelf →\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- \/AUTHORITY ANCHOR BLOCK --\u003e\n\u003cdiv class=\"gl-cta-row\"\u003e\n\u003ca class=\"gl-btn-primary\" href=\"\/ja\/collections\/bundle-dx-flagpole-antenna-remote-antenna-tuner\"\u003eShop DXV + ATU Bundles\u003c\/a\u003e \u003ca class=\"gl-btn-primary\" href=\"\/ja\/products\/9-foot-whip-for-greyline-antennas\"\u003e9 ft Whip — +3.5 dBi\u003c\/a\u003e \u003ca class=\"gl-btn-secondary\" href=\"\/ja\/pages\/antenna-selection-guide\"\u003eAntenna Selection Guide\u003c\/a\u003e \u003ca class=\"gl-btn-secondary\" href=\"\/ja\/pages\/agency-gov-solutions\"\u003eAgency Hub\u003c\/a\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"border-top: 3px solid #B8960C; border-left: 1px solid #DDD8CC; border-right: 1px solid #DDD8CC; border-bottom: 1px solid #DDD8CC; background: #ffffff; padding: 22px 26px; margin: 28px 0; font-family: Helvetica, Arial, sans-serif;\"\u003e\n  \u003cdiv style=\"display: inline-block; border: 1px solid #B8960C; padding: 3px 10px; font-family: 'Courier New', monospace; font-size: 11px; font-weight: bold; letter-spacing: 1px; margin-bottom: 12px;\"\u003eTHE SIGNAL LAB\u003c\/div\u003e\n  \u003cp style=\"font-size: 15px; line-height: 1.6; margin: 0 0 10px 0;\"\u003e\u003cstrong\u003eSame engine, no disguise.\u003c\/strong\u003e The DXV is the bare vertical dipole — the physics the flagpole hides. Read the teaching:\u003c\/p\u003e\n  \u003cp style=\"font-size: 15px; line-height: 1.9; margin: 0;\"\u003e\n    \u003ca href=\"\/ja\/pages\/what-is-a-vda-vertical-dipole-antenna\"\u003eWhat is a VDA (Vertical Dipole Antenna)?\u003c\/a\u003e\u003cbr\u003e\n    \u003ca href=\"\/ja\/pages\/best-hf-vertical-antenna-no-radials\"\u003eNo radials: the design choice, not the shortcut\u003c\/a\u003e\u003cbr\u003e\n    \u003ca href=\"\/ja\/pages\/rf-balance-isolation-vs-symmetry-antennas-balanced-vs-unbalanced\"\u003eBalanced vs. unbalanced: why the feedpoint matters\u003c\/a\u003e\u003cbr\u003e\n    \u003ca href=\"\/ja\/pages\/where-to-mount-hf-vertical-flagpole-antenna\"\u003eRooftop, deck, or ground post: mounting the DXV\u003c\/a\u003e\n  \u003c\/p\u003e\n\u003c\/div\u003e","products":[{"product_id":"12-foot-vertical-antenna","title":"12' HF Vertical Antenna | No Radials | 160-6M | Greyline Performance","description":"\u003c!-- DXV12 PRODUCT PAGE | Paste into Shopify Products \u003e Description \u003e HTML source view --\u003e\n\u003cdiv style=\"max-width: 860px; margin: 0 auto; padding: 0 0 8px 0;\"\u003e\n    \u003cp style=\"font-size: 11px; text-transform: uppercase; letter-spacing: 2.5px; color: #b8960c; font-weight: bold; margin: 0 0 8px 0;\"\u003eHF Vertical Antenna · 160–6M · No Radials · Made in USA\u003c\/p\u003e\n    \u003ch2 style=\"font-size: 26px; font-weight: bold; color: #1a1a1a; line-height: 1.25; margin: 0 0 14px 0;\"\u003eThe DXV12 — Maximum Wind Rating. Any Surface.\u003c\/h2\u003e\n    \u003cp style=\"font-size: 15px; color: #555; line-height: 1.65; margin: 0 0 20px 0;\"\u003eThe DXV12 is built for rooftop, hard-surface, and high-wind installations. No flagpole hardware — clean bare vertical. The highest wind rating in the DXV lineup at 175 MPH. Full 160–6M coverage with no radials. Deploys on concrete, asphalt, frozen ground, or rooftop without a ground system.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #1a1a1a; color: #e8e8e8; padding: 18px 22px; border-left: 4px solid #B8960C; margin: 0 0 28px 0; max-width: 860px;\"\u003e\n    \u003cp style=\"margin: 0 0 6px 0; font-size: 12px; font-weight: bold; color: #b8960c; text-transform: uppercase; letter-spacing: 1px;\"\u003eDXV vs DXF — Same Physics, Different Profile\u003c\/p\u003e\n    \u003cp style=\"margin: 0; font-size: 15px; line-height: 1.6; color: #e8e8e8;\"\u003e\n        The DXV is the bare vertical — no flagpole hardware, no flag kit. Same OCF VDA physics as the DXF. Choose DXV for rooftop, deck, commercial, POTA, or any install where the flagpole aesthetic isn't needed. Want the flagpole version? \n        \u003ca href=\"\/ja\/collections\/hoa-flagpole-antenna\/products\/12-foot-flagpole-antenna\" style=\"color: #b8960c; text-decoration: none;\"\u003eSee the DXF12 →\u003c\/a\u003e\n    \u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 16px; margin: 0 0 28px 0; max-width: 860px;\"\u003e\n    \u003cdiv style=\"background: #fff; border: 1px solid #DDD8CC; border-top: 3px solid #B8960C; padding: 18px;\"\u003e\n        \u003cp style=\"font-size: 12px; font-weight: bold; color: #b8960c; text-transform: uppercase; letter-spacing: 1px; margin: 0 0 6px 0;\"\u003eBand Coverage\u003c\/p\u003e\n        \u003cp style=\"font-size: 20px; font-weight: bold; color: #1a1a1a; margin: 0 0 4px 0;\"\u003e160–6M\u003c\/p\u003e\n        \u003cp style=\"font-size: 13px; color: #555; margin: 0;\"\u003eAll HF bands. One antenna.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cdiv style=\"background: #fff; border: 1px solid #DDD8CC; border-top: 3px solid #B8960C; padding: 18px;\"\u003e\n        \u003cp style=\"font-size: 12px; font-weight: bold; color: #b8960c; text-transform: uppercase; letter-spacing: 1px; margin: 0 0 6px 0;\"\u003eWind Rating\u003c\/p\u003e\n        \u003cp style=\"font-size: 20px; font-weight: bold; color: #1a1a1a; margin: 0 0 4px 0;\"\u003e175 MPH\u003c\/p\u003e\n        \u003cp style=\"font-size: 13px; color: #555; margin: 0;\"\u003eASCE 7-10 engineered. Single rating, no flag load.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cdiv style=\"background: #fff; border: 1px solid #DDD8CC; border-top: 3px solid #B8960C; padding: 18px;\"\u003e\n        \u003cp style=\"font-size: 12px; font-weight: bold; color: #b8960c; text-transform: uppercase; letter-spacing: 1px; margin: 0 0 6px 0;\"\u003eGuarantee\u003c\/p\u003e\n        \u003cp style=\"font-size: 20px; font-weight: bold; color: #1a1a1a; margin: 0 0 4px 0;\"\u003e7 Years\u003c\/p\u003e\n        \u003cp style=\"font-size: 13px; color: #555; margin: 0;\"\u003eFree shipping USA. Made in Sun Valley, Idaho.\u003c\/p\u003e\n    \u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #1a1a1a; padding: 18px 22px; border-left: 4px solid #B8960C; margin: 0 0 28px 0; max-width: 860px;\"\u003e\n    \u003cp style=\"margin: 0 0 6px 0; font-size: 12px; font-weight: bold; color: #b8960c; text-transform: uppercase; letter-spacing: 1px;\"\u003eField Report — Height-Restricted HOA\u003c\/p\u003e\n    \u003cp style=\"margin: 0 0 10px 0; font-size: 15px; line-height: 1.6; color: #e8e8e8;\"\u003eA Phoenix-area operator with a 16-foot HOA height restriction runs confirmed SWR on every band from 160 through 6 meters. The VDA doesn't need height to load — it needs a good tuner and the right feedline. Go as tall as your lot allows. Work everything either way.\u003c\/p\u003e\n    \u003cp style=\"margin: 0; font-size: 12px; color: #aaa;\"\u003e— KJ7CWQ · Phoenix, AZ · Verified Owner\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"max-width: 860px; margin: 0 0 28px 0;\"\u003e\n    \u003cp style=\"font-size: 11px; text-transform: uppercase; letter-spacing: 2.5px; color: #b8960c; font-weight: bold; margin: 0 0 8px 0;\"\u003eThe Physics\u003c\/p\u003e\n    \u003ch3 style=\"font-size: 19px; font-weight: bold; color: #1a1a1a; margin: 0 0 10px 0;\"\u003eWhy No Radials — and Why It Works\u003c\/h3\u003e\n    \u003cp style=\"font-size: 15px; color: #555; line-height: 1.65; margin: 0 0 12px 0;\"\u003eTraditional quarter-wave verticals feed at the current maximum at the base — pushing maximum I²R loss directly through soil. Every ohm of ground resistance sits in series with your radiation resistance, stealing signal before it leaves your yard.\u003c\/p\u003e\n    \u003cp style=\"font-size: 15px; color: #555; line-height: 1.65; margin: 0 0 12px 0;\"\u003eThe Greyline VDA is a vertical dipole. Covers 160–6M from a single feedpoint with no radials. Return current flows through the lower element, not through a buried radial field — significantly reducing ground coupling and removing dependency on soil conductivity. Performance consistent on any surface. 5\/8λ on 6 meters.\u003c\/p\u003e\n    \u003cp style=\"font-size: 13px; color: #888; margin: 0 0 16px 0;\"\u003eThe physics behind the no-radial vertical dipole is established, published work — the full reference shelf is cited below, and a deeper VDA explainer lives in the Signal Lab for further study.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #f9f8f6; border: 1px solid #DDD8CC; border-left: 4px solid #B8960C; padding: 14px 18px; max-width: 860px; margin: 0 0 28px 0;\"\u003e\n    \u003cp style=\"font-size: 12px; font-weight: bold; color: #b8960c; text-transform: uppercase; letter-spacing: 1px; margin: 0 0 6px 0;\"\u003eBefore You Install — Run a Noise Audit\u003c\/p\u003e\n    \u003cp style=\"font-size: 14px; color: #555; line-height: 1.65; margin: 0 0 8px 0;\"\u003eThe VDA's 2-inch pole footprint is the smallest ground signature of any full-HF-coverage antenna. A traditional radial field extends hundreds of feet at 160 meters — running toward every noise source on the property. The VDA goes where you choose. Grab a battery-powered AM radio, tune off any broadcast station, walk your property, and find the quietest spot. That's where the pole goes.\u003c\/p\u003e\n    \u003ca style=\"font-size: 12px; font-weight: bold; color: #b8960c; text-decoration: none; text-transform: uppercase; letter-spacing: 1px;\" href=\"\/ja\/pages\/assembly-documents\"\u003eFull Installation Guide →\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"max-width: 860px; margin: 0 0 28px 0;\"\u003e\n    \u003cp style=\"font-size: 11px; text-transform: uppercase; letter-spacing: 2.5px; color: #b8960c; font-weight: bold; margin: 0 0 8px 0;\"\u003eIn the Box\u003c\/p\u003e\n    \u003ch3 style=\"font-size: 19px; font-weight: bold; color: #1a1a1a; margin: 0 0 14px 0;\"\u003eEverything You Need. Nothing You Don't.\u003c\/h3\u003e\n    \u003cdiv style=\"background: #fff; border: 1px solid #DDD8CC; border-top: 3px solid #B8960C; padding: 18px; max-width: 420px;\"\u003e\n        \u003cp style=\"font-size: 12px; font-weight: bold; color: #b8960c; text-transform: uppercase; letter-spacing: 1px; margin: 0 0 10px 0;\"\u003eAntenna System\u003c\/p\u003e\n        \u003cul style=\"margin: 0; padding: 0 0 0 16px; color: #555; font-size: 14px; line-height: 1.8;\"\u003e\n            \u003cli\u003e12' DXV HF Vertical VDA Radiator\u003c\/li\u003e\n            \u003cli\u003eRF Choke \u0026amp; Precision Feedline Hardware\u003c\/li\u003e\n            \u003cli\u003eGround Sleeve Kit\u003c\/li\u003e\n            \u003cli\u003eAssembly Manual \u0026amp; Tuning Guide\u003c\/li\u003e\n            \u003cli\u003e7-Year Performance Guarantee\u003c\/li\u003e\n        \u003c\/ul\u003e\n    \u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"max-width: 860px; margin: 0 0 28px 0;\"\u003e\n    \u003cp style=\"font-size: 11px; text-transform: uppercase; letter-spacing: 2.5px; color: #b8960c; font-weight: bold; margin: 0 0 8px 0;\"\u003eStructural Engineering\u003c\/p\u003e\n    \u003ch3 style=\"font-size: 19px; font-weight: bold; color: #1a1a1a; margin: 0 0 10px 0;\"\u003eBuilt for Real Weather\u003c\/h3\u003e\n    \u003cp style=\"font-size: 15px; color: #555; line-height: 1.65; margin: 0 0 14px 0;\"\u003eEvery DXV carries a single wind rating — no flag load variable. ASCE 7-10 engineered throughout.\u003c\/p\u003e\n    \u003ctable style=\"width: 100%; border-collapse: collapse; font-size: 14px; margin: 0 0 10px 0;\"\u003e\n        \u003cthead\u003e\n            \u003ctr style=\"background: #1a1a1a; color: #fff; text-align: left;\"\u003e\n                \u003cth style=\"padding: 10px 14px;\"\u003eModel\u003c\/th\u003e\n                \u003cth style=\"padding: 10px 14px;\"\u003eWind Rating\u003c\/th\u003e\n                \u003cth style=\"padding: 10px 14px;\"\u003eStandard\u003c\/th\u003e\n            \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n            \u003ctr style=\"background: #f9f8f6;\"\u003e\n                \u003ctd style=\"padding: 10px 14px; font-weight: bold; color: #b8960c;\"\u003eDXV12\u003c\/td\u003e\n                \u003ctd style=\"padding: 10px 14px; font-weight: bold;\"\u003e175 MPH\u003c\/td\u003e\n                \u003ctd style=\"padding: 10px 14px; color: #888;\"\u003eASCE 7-10\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr style=\"background: #fff;\"\u003e\n                \u003ctd style=\"padding: 10px 14px; color: #888;\"\u003eDXV16\u003c\/td\u003e\n                \u003ctd style=\"padding: 10px 14px; color: #888;\"\u003e132 MPH\u003c\/td\u003e\n                \u003ctd style=\"padding: 10px 14px; color: #888;\"\u003eASCE 7-10\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr style=\"background: #f9f8f6;\"\u003e\n                \u003ctd style=\"padding: 10px 14px; color: #888;\"\u003eDXV20\u003c\/td\u003e\n                \u003ctd style=\"padding: 10px 14px; color: #888;\"\u003e105 MPH\u003c\/td\u003e\n                \u003ctd style=\"padding: 10px 14px; color: #888;\"\u003eASCE 7-10\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr style=\"background: #fff;\"\u003e\n                \u003ctd style=\"padding: 10px 14px; color: #888;\"\u003eDXV24\u003c\/td\u003e\n                \u003ctd style=\"padding: 10px 14px; color: #888;\"\u003e82 MPH\u003c\/td\u003e\n                \u003ctd style=\"padding: 10px 14px; color: #888;\"\u003eASCE 7-10\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr style=\"background: #f9f8f6;\"\u003e\n                \u003ctd style=\"padding: 10px 14px; color: #888;\"\u003eDXV28\u003c\/td\u003e\n                \u003ctd style=\"padding: 10px 14px; color: #888;\"\u003e65 MPH\u003c\/td\u003e\n                \u003ctd style=\"padding: 10px 14px; color: #888;\"\u003eASCE 7-10\u003c\/td\u003e\n            \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n    \u003c\/table\u003e\n    \u003cp style=\"font-size: 12px; color: #888; margin: 0;\"\u003eRatings per ASCE 7-10.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"max-width: 860px; margin: 0 0 28px 0;\"\u003e\n    \u003cp style=\"font-size: 11px; text-transform: uppercase; letter-spacing: 2.5px; color: #b8960c; font-weight: bold; margin: 0 0 8px 0;\"\u003eTake It Further\u003c\/p\u003e\n    \u003ch3 style=\"font-size: 19px; font-weight: bold; color: #1a1a1a; margin: 0 0 14px 0;\"\u003eUpgrades That Actually Move the Needle\u003c\/h3\u003e\n    \u003cdiv style=\"display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 16px;\"\u003e\n        \u003cdiv style=\"background: #fff; border: 1px solid #DDD8CC; border-top: 3px solid #B8960C; padding: 18px;\"\u003e\n            \u003cp style=\"font-size: 12px; font-weight: bold; color: #b8960c; text-transform: uppercase; letter-spacing: 1px; margin: 0 0 6px 0;\"\u003e9' DX Whip\u003c\/p\u003e\n            \u003cp style=\"font-size: 14px; color: #555; line-height: 1.6; margin: 0 0 8px 0;\"\u003eAdds 9 feet of aperture. Up to 3.5 dBi additional gain potential on the key DX bands. Lightweight, stealthy.\u003c\/p\u003e\n            \u003ca style=\"font-size: 12px; font-weight: bold; color: #b8960c; text-decoration: none; text-transform: uppercase; letter-spacing: 1px;\" href=\"\/ja\/products\/9-foot-whip-for-greyline-antennas\"\u003eView Whip →\u003c\/a\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"background: #fff; border: 1px solid #DDD8CC; border-top: 3px solid #B8960C; padding: 18px;\"\u003e\n            \u003cp style=\"font-size: 12px; font-weight: bold; color: #b8960c; text-transform: uppercase; letter-spacing: 1px; margin: 0 0 6px 0;\"\u003eLDG RT-100 Bundle\u003c\/p\u003e\n            \u003cp style=\"font-size: 14px; color: #555; line-height: 1.6; margin: 0 0 8px 0;\"\u003e125W weatherproof remote tuner at the feedpoint. DC over coax. One-button tuning 160–6M. Bundle the DXV12 with the RT-100 and save.\u003c\/p\u003e\n            \u003ca style=\"font-size: 12px; font-weight: bold; color: #b8960c; text-decoration: none; text-transform: uppercase; letter-spacing: 1px;\" href=\"\/ja\/collections\/bundle-dx-flagpole-antenna-remote-antenna-tuner\"\u003eView Bundle →\u003c\/a\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"background: #fff; border: 1px solid #DDD8CC; border-top: 3px solid #B8960C; padding: 18px;\"\u003e\n            \u003cp style=\"font-size: 12px; font-weight: bold; color: #b8960c; text-transform: uppercase; letter-spacing: 1px; margin: 0 0 6px 0;\"\u003eWant a Flagpole?\u003c\/p\u003e\n            \u003cp style=\"font-size: 14px; color: #555; line-height: 1.6; margin: 0 0 8px 0;\"\u003eThe DXF12 delivers identical VDA performance in a premium flagpole with HOA documents included.\u003c\/p\u003e\n            \u003ca style=\"font-size: 12px; font-weight: bold; color: #b8960c; text-decoration: none; text-transform: uppercase; letter-spacing: 1px;\" href=\"\/ja\/collections\/hoa-flagpole-antenna\/products\/12-foot-flagpole-antenna\"\u003eSee the DXF12 →\u003c\/a\u003e\n        \u003c\/div\u003e\n    \u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"max-width: 860px; margin: 0 0 28px 0; padding: 14px 18px; border: 1px solid #DDD8CC; background: #fff;\"\u003e\n    \u003cp style=\"font-size: 12px; font-weight: bold; color: #b8960c; text-transform: uppercase; letter-spacing: 1px; margin: 0 0 6px 0;\"\u003eFeed System Note\u003c\/p\u003e\n    \u003cp style=\"font-size: 13px; color: #555; margin: 0; line-height: 1.6;\"\u003e\n        The DXV is a balanced VDA — tuner and RF choke must maintain a floating balanced feed. See the \n        \u003ca style=\"color: #b8960c; text-decoration: none;\" href=\"\/ja\/blogs\/news\/correctly-configuring-the-flagpole-tuner-and-balun-feed-system\"\u003eTuner \u0026amp; Balun Configuration Guide →\u003c\/a\u003e\n    \u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"max-width: 860px; margin: 0 0 28px 0;\"\u003e\n    \u003cp style=\"font-size: 11px; text-transform: uppercase; letter-spacing: 2.5px; color: #b8960c; font-weight: bold; margin: 0 0 8px 0;\"\u003eSpecs \u0026amp; Shipping\u003c\/p\u003e\n    \u003ctable style=\"width: 100%; border-collapse: collapse; font-size: 14px;\"\u003e\n        \u003ctbody\u003e\n            \u003ctr style=\"background: #1a1a1a; color: #fff;\"\u003e\n                \u003cth style=\"padding: 10px 14px; text-align: left;\"\u003eSpec\u003c\/th\u003e\n                \u003cth style=\"padding: 10px 14px; text-align: left;\"\u003eDetail\u003c\/th\u003e\n            \u003c\/tr\u003e\n            \u003ctr style=\"background: #f9f8f6;\"\u003e\n                \u003ctd style=\"padding: 10px 14px; color: #555;\"\u003eHeight\u003c\/td\u003e\n                \u003ctd style=\"padding: 10px 14px; font-weight: bold;\"\u003e12 feet\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr\u003e\n                \u003ctd style=\"padding: 10px 14px; color: #555;\"\u003eBand Coverage\u003c\/td\u003e\n                \u003ctd style=\"padding: 10px 14px; font-weight: bold;\"\u003e160–6M (all HF + 6M)\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr style=\"background: #f9f8f6;\"\u003e\n                \u003ctd style=\"padding: 10px 14px; color: #555;\"\u003eDesign\u003c\/td\u003e\n                \u003ctd style=\"padding: 10px 14px; font-weight: bold;\"\u003eVDA — Vertical Dipole Antenna, OCF\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr\u003e\n                \u003ctd style=\"padding: 10px 14px; color: #555;\"\u003ePower Handling\u003c\/td\u003e\n                \u003ctd style=\"padding: 10px 14px; font-weight: bold;\"\u003eLegal limit — constrained only by ATU rating\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr style=\"background: #f9f8f6;\"\u003e\n                \u003ctd style=\"padding: 10px 14px; color: #555;\"\u003eRadials Required\u003c\/td\u003e\n                \u003ctd style=\"padding: 10px 14px; font-weight: bold;\"\u003eNone\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr\u003e\n                \u003ctd style=\"padding: 10px 14px; color: #555;\"\u003eMaterial\u003c\/td\u003e\n                \u003ctd style=\"padding: 10px 14px; font-weight: bold;\"\u003e6061-T6 Aircraft-Grade Aluminum + Fiberglass\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr style=\"background: #f9f8f6;\"\u003e\n                \u003ctd style=\"padding: 10px 14px; color: #555;\"\u003eWind Rating\u003c\/td\u003e\n                \u003ctd style=\"padding: 10px 14px; font-weight: bold;\"\u003e175 MPH — ASCE 7-10\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr\u003e\n                \u003ctd style=\"padding: 10px 14px; color: #555;\"\u003eShipping\u003c\/td\u003e\n                \u003ctd style=\"padding: 10px 14px; font-weight: bold;\"\u003eFree — USA. International rates at checkout.\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr style=\"background: #f9f8f6;\"\u003e\n                \u003ctd style=\"padding: 10px 14px; color: #555;\"\u003eMade In\u003c\/td\u003e\n                \u003ctd style=\"padding: 10px 14px; font-weight: bold;\"\u003eSun Valley, Idaho — USA\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr\u003e\n                \u003ctd style=\"padding: 10px 14px; color: #555;\"\u003eGuarantee\u003c\/td\u003e\n                \u003ctd style=\"padding: 10px 14px; font-weight: bold;\"\u003e7-Year Performance Guarantee\u003c\/td\u003e\n            \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n    \u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: grid; grid-template-columns: 1fr 1fr; gap: 12px; max-width: 860px; margin: 0 0 28px 0;\"\u003e\n    \u003ca style=\"display: block; text-align: center; background: #fff; color: #1a1a1a; border: 1px solid #DDD8CC; padding: 11px 16px; font-size: 12px; font-weight: bold; text-transform: uppercase; letter-spacing: 1px; text-decoration: none;\" href=\"\/ja\/pages\/antenna-selection-guide\"\u003eSelection Guide\u003c\/a\u003e\n    \u003ca style=\"display: block; text-align: center; background: #fff; color: #1a1a1a; border: 1px solid #DDD8CC; padding: 11px 16px; font-size: 12px; font-weight: bold; text-transform: uppercase; letter-spacing: 1px; text-decoration: none;\" href=\"\/ja\/collections\/vertical-antenna\/products\/16-foot-vertical-antenna\"\u003eDXV16 →\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cstyle\u003e\n.gp-faq details {\n    border: 1px solid #DDD8CC;\n    margin: 0 0 8px 0;\n}\n\n.gp-faq summary {\n    padding: 14px 18px;\n    font-size: 14px;\n    font-weight: 700;\n    color: #1a1a1a;\n    cursor: pointer;\n    list-style: none;\n    display: flex;\n    justify-content: space-between;\n    align-items: center;\n}\n\n.gp-faq summary::-webkit-details-marker {\n    display: none;\n}\n\n.gp-faq summary::after {\n    content: \"+\";\n    color: #B8960C;\n    font-size: 18px;\n    font-weight: 400;\n    flex-shrink: 0;\n    margin-left: 16px;\n}\n\n.gp-faq details[open] summary::after {\n    content: \"-\";\n}\n\n.gp-faq details[open] summary {\n    color: #B8960C;\n}\n\n.gp-faq .fb {\n    padding: 0 18px 16px 18px;\n    border-top: 1px solid #DDD8CC;\n}\n\n.gp-faq .fb p {\n    font-size: 14px;\n    color: #555;\n    line-height: 1.65;\n    margin: 12px 0 0 0;\n}\n\n.gp-faq .fb a {\n    color: #B8960C;\n    text-decoration: none;\n}\n\n.gp-faq .fc {\n    font-size: 13px;\n    color: #555;\n    margin: 4px 0 0 0;\n}\n\n.gp-faq .fh {\n    font-size: 13px;\n    color: #B8960C;\n    font-weight: 700;\n    margin: 8px 0 0 0;\n}\n\u003c\/style\u003e\n\u003cdiv style=\"background: #f9f8f6; border: 1px solid #e0dbd0; padding: 13px 18px; margin: 0 0 14px;\"\u003e\n    \u003cp style=\"font-size: 13px; color: #555; line-height: 1.65; margin: 0;\"\u003e\n        \u003cstrong style=\"color: #1a1a1a;\"\u003eDXV or DXF?\u003c\/strong\u003e\n         Same VDA physics. The \n        \u003ca style=\"color: #b8960c; text-decoration: none;\" href=\"\/ja\/collections\/hoa-flagpole-antenna\/products\/12-foot-flagpole-antenna\"\u003eDXF12\u003c\/a\u003e\n         adds flagpole hardware, USA flag kit, and HOA Architectural Brief. Choose the DXV12 for rooftop, deck, or any install where the flagpole aesthetic isn't needed.\n    \u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin: 0 0 14px;\"\u003e\n    \u003cdiv style=\"background: #1a1a1a; border-top: 3px solid #B8960C; padding: 20px 16px;\"\u003e\n        \u003cp style=\"font-family: 'Courier New',monospace; font-size: 10px; letter-spacing: 2px; color: #b8960c; text-transform: uppercase; margin: 0 0 6px;\"\u003eWind Rating\u003c\/p\u003e\n        \u003cp style=\"font-size: 36px; font-weight: bold; color: #ffffff; line-height: 1; margin: 0 0 4px;\"\u003e\n            175 \n            \u003cspan style=\"font-size: 15px; font-weight: 400; color: #b0b0b0;\"\u003eMPH\u003c\/span\u003e\n        \u003c\/p\u003e\n        \u003cp style=\"font-size: 11px; color: #b0b0b0; margin: 0 0 10px;\"\u003eASCE 7-10 · Single rating — no flag load\u003c\/p\u003e\n        \u003cp style=\"font-size: 13px; color: #e8e8e8; line-height: 1.6; margin: 0;\"\u003eHighest structural rating in the lineup. Rooftops, high-wind corridors, tight urban installs, rapid-deploy EmComm.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cdiv style=\"background: #1a1a1a; border-top: 3px solid #B8960C; padding: 20px 16px;\"\u003e\n        \u003cp style=\"font-family: 'Courier New',monospace; font-size: 10px; letter-spacing: 2px; color: #b8960c; text-transform: uppercase; margin: 0 0 6px;\"\u003e5\/8λ Sweet Spot\u003c\/p\u003e\n        \u003cp style=\"font-size: 36px; font-weight: bold; color: #ffffff; line-height: 1; margin: 0 0 4px;\"\u003e10M\u003c\/p\u003e\n        \u003cp style=\"font-size: 11px; color: #b0b0b0; margin: 0 0 10px;\"\u003eWith 9' whip add-on\u003c\/p\u003e\n        \u003cp style=\"font-size: 13px; color: #e8e8e8; line-height: 1.6; margin: 0;\"\u003eCovers 160–6M from a single feedpoint. Add the 9' whip for 5\/8λ on 10M. Modular — field-upgradeable.\u003c\/p\u003e\n    \u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #ffffff; border: 1px solid #e0dbd0; border-left: 4px solid #B8960C; padding: 18px 22px; margin: 0 0 14px;\"\u003e\n    \u003cp style=\"font-size: 11px; font-weight: 700; color: #B8960C; text-transform: uppercase; letter-spacing: 1.5px; margin: 0 0 10px;\"\u003eConstruction — 6061-T6 Aircraft Aluminum\u003c\/p\u003e\n    \u003cp style=\"font-size: 14px; color: #444; line-height: 1.75; margin: 0 0 10px;\"\u003e\n        \u003cstrong style=\"color: #1a1a1a;\"\u003eOutside:\u003c\/strong\u003e\n         2\" OD, full length — uniform profile top to bottom. Clean. Sleek. Invisible as an antenna. \n        \u003cstrong style=\"color: #1a1a1a;\"\u003eInside:\u003c\/strong\u003e\n         wall graduates where the physics demands it — \n        \u003cstrong style=\"color: #1a1a1a;\"\u003e0.125\" lower 30%\u003c\/strong\u003e\n         where base bending stress peaks, \n        \u003cstrong style=\"color: #1a1a1a;\"\u003e0.065\" upper 70%\u003c\/strong\u003e\n         where reducing mass at height lowers dynamic wind loads. Zero plastic. All-metal. McMaster-Carr hardware throughout.\n    \u003c\/p\u003e\n    \u003cp style=\"font-size: 14px; color: #444; line-height: 1.75; margin: 0 0 10px;\"\u003e\n        At 12 feet, the Greyline VDA presents \n        \u003cstrong style=\"color: #1a1a1a;\"\u003e2 square feet\u003c\/strong\u003e\n         of wind surface — height × outer diameter. This is the smallest structural footprint of any full-HF-coverage antenna available. A wider-diameter pole at the same height carries proportionally more wind load on every gust, and cycles that load through the base connection every time the wind shifts. More mass at the top of a cantilevered structure does not improve structural performance — it works against it.\n    \u003c\/p\u003e\n    \u003cp style=\"font-size: 14px; color: #444; line-height: 1.75; margin: 0;\"\u003e\n        Every Greyline wind rating is derived from ASCE 7-10 structural engineering values — actual geometry, actual math, published methodology. \n        \u003cstrong style=\"color: #1a1a1a;\"\u003eA wind rating without a cited standard is a guess dressed as a spec.\u003c\/strong\u003e\n         Ask any antenna maker which standard they used. If they can't cite one, you have your answer.\n    \u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #1a1a1a; border: 1px solid rgba(184,150,12,0.28); border-top: 4px solid #B8960C; padding: 24px 22px; margin: 0 0 32px;\"\u003e\n    \u003cp style=\"display: inline-block; background: #B8960C; color: #000000; font-family: 'Courier New',monospace; font-size: 10px; font-weight: bold; letter-spacing: 3px; text-transform: uppercase; padding: 4px 12px; margin: 0 0 14px;\"\u003eLimited Edition · Artisan Production Run\u003c\/p\u003e\n    \u003cp style=\"font-size: 17px; font-weight: bold; color: #ffffff; line-height: 1.35; margin: 0 0 10px;\"\u003eThis unit was built by hand — one at a time — by someone who knows every inch of it.\u003c\/p\u003e\n    \u003cp style=\"font-size: 14px; color: #e8e8e8; line-height: 1.75; margin: 0 0 10px;\"\u003e\n        Same 6061-T6 aircraft aluminum. Same ASCE 7-10 wind ratings. Same VDA geometry. Same 7-year guarantee. \n        \u003cstrong style=\"color: #ffffff;\"\u003eThreaded transition sections machined directly into the metal\u003c\/strong\u003e\n         — self-aligning, no through-bolting, less total weight.\n    \u003c\/p\u003e\n    \u003cp style=\"font-size: 14px; color: #e8e8e8; line-height: 1.75; margin: 0;\"\u003e\n        Manufacturing expanding. Things coming this year. \n        \u003cstrong style=\"color: #ffffff;\"\u003eWatch this space.\u003c\/strong\u003e\n    \u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"max-width: 860px; margin: 0 0 28px 0;\"\u003e\n    \u003cp style=\"font-size: 11px; text-transform: uppercase; letter-spacing: 2.5px; color: #b8960c; font-weight: bold; margin: 0 0 8px 0;\"\u003eCommon Questions\u003c\/p\u003e\n    \u003ch3 style=\"font-size: 19px; font-weight: bold; color: #1a1a1a; margin: 0 0 16px 0;\"\u003eBefore You Order — Answered.\u003c\/h3\u003e\n    \u003cdiv class=\"gp-faq\"\u003e\n        \u003cdetails\u003e\n            \u003csummary\u003eWhat's the current lead time and availability?\u003c\/summary\u003e\n            \u003cdiv class=\"fb\"\u003e\n                \u003cp\u003e\n                    Each antenna is hand-built to order during our current artisan production run — typical lead time runs a few weeks, and we expect to return to ship-from-stock as the run completes. Current lead time is always posted on our \n                    \u003ca href=\"\/ja\/pages\/order-status-updates-for-greyline-performance\"\u003eOrder Status page →\u003c\/a\u003e\n                     Call 435-200-4902 for a specific ship date.\n                \u003c\/p\u003e\n            \u003c\/div\u003e\n        \u003c\/details\u003e\n        \u003cdetails\u003e\n            \u003csummary\u003eHow long does shipping take once it leaves Sun Valley?\u003c\/summary\u003e\n            \u003cdiv class=\"fb\"\u003e\n                \u003cp\u003eUSA shipping is free. Ground transit runs 2–5 business days from Sun Valley, Idaho. Tracking sent at shipment. International rates calculated at checkout.\u003c\/p\u003e\n            \u003c\/div\u003e\n        \u003c\/details\u003e\n        \u003cdetails\u003e\n            \u003csummary\u003eWhat's included — do I need to source anything separately?\u003c\/summary\u003e\n            \u003cdiv class=\"fb\"\u003e\n                \u003cp\u003eEverything to assemble and mount is in the box. You supply coax and an ATU. That's it.\u003c\/p\u003e\n                \u003cp class=\"fc\"\u003e✓ VDA Radiator (your chosen height)\u003c\/p\u003e\n                \u003cp class=\"fc\"\u003e✓ RF Choke \u0026amp; Precision Feedline Hardware\u003c\/p\u003e\n                \u003cp class=\"fc\"\u003e✓ Ground Sleeve Kit — in-ground, tower, roof, deck, dock compatible\u003c\/p\u003e\n                \u003cp class=\"fc\"\u003e✓ Assembly Manual \u0026amp; Tuning Guide\u003c\/p\u003e\n                \u003cp class=\"fc\"\u003e✓ 7-Year Performance Guarantee\u003c\/p\u003e\n            \u003c\/div\u003e\n        \u003c\/details\u003e\n        \u003cdetails\u003e\n            \u003csummary\u003eDo I need an ATU — will my radio's internal tuner work?\u003c\/summary\u003e\n            \u003cdiv class=\"fb\"\u003e\n                \u003cp\u003eYes, an external ATU is required. The VDA presents variable impedance across its operating range — that's how it covers 160–6M from a single feedpoint with no traps and no radials. Most internal tuners won't handle the full impedance range on every band.\u003c\/p\u003e\n                \u003cp\u003e\n                    An external ATU lives in one of two places, and both are right depending on your run. For a short feedline run, a desktop ATU at the radio is the simpler path — it stays warm and dry indoors and you can hear it tune. For a longer run, a weatherproof remote ATU at the antenna base keeps the match close to the feedpoint; the \n                    \u003ca href=\"\/ja\/products\/greyline-antenna-tuner-ldg-rt100-atu\"\u003eLDG RT-100\u003c\/a\u003e\n                     is a low-cost 125W fit for that job. Either way, note that all ATUs carry a reduced power rating for digital modes (FT8, Winlink, JS8Call) due to 100% duty cycle heat loading — check your tuner's digital rating before running full power on those modes. Running high power? The antenna handles the full legal limit on every band — the tuner is the only ceiling, and higher-power ATU options are available. \n                    \u003ca href=\"\/ja\/collections\/bundle-dx-flagpole-antenna-remote-antenna-tuner\"\u003eAntenna + ATU bundles →\u003c\/a\u003e\n                \u003c\/p\u003e\n            \u003c\/div\u003e\n        \u003c\/details\u003e\n        \u003cdetails\u003e\n            \u003csummary\u003eIs the ATU bundle the best value?\u003c\/summary\u003e\n            \u003cdiv class=\"fb\"\u003e\n                \u003cp\u003e\n                    Yes. Every DXV is available bundled with the LDG RT-100 at a discount. Free shipping USA. \n                    \u003ca href=\"\/ja\/collections\/bundle-dx-flagpole-antenna-remote-antenna-tuner\"\u003eShop all bundles →\u003c\/a\u003e\n                \u003c\/p\u003e\n            \u003c\/div\u003e\n        \u003c\/details\u003e\n        \u003cdetails\u003e\n            \u003csummary\u003eHow difficult is installation? How long does it take?\u003c\/summary\u003e\n            \u003cdiv class=\"fb\"\u003e\n                \u003cp\u003eMost operators are on the air in under an hour. Dig a post hole, build the antenna sections (15–30 min), drop it in, run coax, connect the ATU. All stainless hardware comes pre-fastened — no loose hardware to lose in the grass.\u003c\/p\u003e\n                \u003cp\u003e\n                    Assembly documents at \n                    \u003ca href=\"\/ja\/pages\/assembly-documents\"\u003eSetup \u0026amp; Manuals →\u003c\/a\u003e\n                     Questions during install? Call 435-200-4902.\n                \u003c\/p\u003e\n            \u003c\/div\u003e\n        \u003c\/details\u003e\n        \u003cdetails\u003e\n            \u003csummary\u003eWhat does the 7-Year Guarantee cover?\u003c\/summary\u003e\n            \u003cdiv class=\"fb\"\u003e\n                \u003cp\u003e\n                    Seven years of performance coverage. If it fails under normal operating conditions, we make it right. No questions asked. A customer's antenna fell in a severe ice storm — we sent a replacement immediately. Full terms at \n                    \u003ca href=\"\/ja\/policies\/refund-policy\"\u003e7-Year Warranty Policy →\u003c\/a\u003e\n                \u003c\/p\u003e\n            \u003c\/div\u003e\n        \u003c\/details\u003e\n    \u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- AUTHORITY ANCHOR BLOCK --\u003e\n\u003cdiv style=\"margin: 32px 0; padding: 24px 28px; background: #fafaf7; border-left: 3px solid #B8960C; font-family: Georgia, 'Times New Roman', serif; font-size: 15px; line-height: 1.7; color: #2a2a2a;\"\u003e\n    \u003cdiv style=\"color: #B8960C; font-size: 11px; letter-spacing: 2.5px; text-transform: uppercase; margin-bottom: 10px;\"\u003eWhy this antenna works\u003c\/div\u003e\n    \u003cp style=\"margin: 0 0 12px 0;\"\u003eEvery Greyline design decision traces back to named, published antenna physics — Zavrel W7SX, Kraus W8JK, Severns N6LF on ground systems, Maxwell W2DU on transmission lines, Lewallen W7EL on modeling. Not opinions. Cited works.\u003c\/p\u003e\n    \u003cp style=\"margin: 0; font-size: 14px; color: #555;\"\u003e\n        The full shelf — Zavrel, Kraus, Severns, Maxwell, Lewallen — lives under \n        \u003cem\u003eThe Signal Lab · The Shelf We Read From\u003c\/em\u003e\n         in the menu, open to everyone.\n    \u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- \/AUTHORITY ANCHOR BLOCK --\u003e\n\u003cdiv style=\"max-width: 860px; border-top: 1px solid #DDD8CC; padding-top: 16px; margin: 0 0 8px 0;\"\u003e\n    \u003cp style=\"font-size: 13px; color: #888; font-style: italic; margin: 0;\"\u003eHam Radio is fun again! Pass it on... 73, The Greyline Performance Team · Sun Valley, Idaho · 435-200-4902\u003c\/p\u003e\n\u003c\/div\u003e\n","brand":"Greyline Performance","offers":[{"title":"Default Title","offer_id":15231761809475,"sku":"DXV12","price":850.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0028\/2571\/5779\/products\/DX_Vertical_Antenna-12ft-min.jpg?v=1770159434"},{"product_id":"16-foot-vertical-antenna","title":"16' HF Vertical Antenna | No Radials | 160-6M | Greyline Performance","description":"\u003c!-- DXV16 PRODUCT PAGE | Paste into Shopify Products \u003e Description \u003e HTML source view --\u003e\n\u003cdiv style=\"max-width: 860px; margin: 0 auto; padding: 0 0 8px 0;\"\u003e\n    \u003cp style=\"font-size: 11px; text-transform: uppercase; letter-spacing: 2.5px; color: #b8960c; font-weight: bold; margin: 0 0 8px 0;\"\u003eHF Vertical Antenna · 160–6M · No Radials · Made in USA\u003c\/p\u003e\n    \u003ch2 style=\"font-size: 26px; font-weight: bold; color: #1a1a1a; line-height: 1.25; margin: 0 0 14px 0;\"\u003eThe DXV16 — Versatile. Deployable Anywhere.\u003c\/h2\u003e\n    \u003cp style=\"font-size: 15px; color: #555; line-height: 1.65; margin: 0 0 20px 0;\"\u003eThe DXV16 covers rooftop, deck, and field installations. No flagpole hardware — clean bare vertical. 16 feet of aperture delivers solid performance from 160 through 6 meters. No radials, no ground system. Deploys on any surface.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background:#1a1a1a;color:#e8e8e8;padding:18px 22px;border-left:4px solid #B8960C;margin:0 0 28px 0;max-width:860px;\"\u003e\n    \u003cp style=\"margin:0 0 6px 0;font-size:12px;font-weight:bold;color:#b8960c;text-transform:uppercase;letter-spacing:1px;\"\u003eDXV vs DXF — Same Physics, Different Profile\u003c\/p\u003e\n    \u003cp style=\"margin:0;font-size:15px;line-height:1.6;color:#e8e8e8;\"\u003e\n        The DXV is the bare vertical — no flagpole hardware, no flag kit. Same OCF VDA physics as the DXF. Choose DXV for rooftop, deck, commercial, POTA, or any install where the flagpole aesthetic isn't needed. Want the flagpole version? \n        \u003ca href=\"\/ja\/collections\/hoa-flagpole-antenna\/products\/16-foot-flagpole-antenna\" style=\"color:#b8960c;text-decoration:none;\"\u003eSee the DXF16 →\u003c\/a\u003e\n    \u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 16px; margin: 0 0 28px 0; max-width: 860px;\"\u003e\n    \u003cdiv style=\"background: #fff; border: 1px solid #DDD8CC; border-top: 3px solid #B8960C; padding: 18px;\"\u003e\n        \u003cp style=\"font-size: 12px; font-weight: bold; color: #b8960c; text-transform: uppercase; letter-spacing: 1px; margin: 0 0 6px 0;\"\u003eBand Coverage\u003c\/p\u003e\n        \u003cp style=\"font-size: 20px; font-weight: bold; color: #1a1a1a; margin: 0 0 4px 0;\"\u003e160–6M\u003c\/p\u003e\n        \u003cp style=\"font-size: 13px; color: #555; margin: 0;\"\u003eAll HF bands. One antenna.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cdiv style=\"background: #fff; border: 1px solid #DDD8CC; border-top: 3px solid #B8960C; padding: 18px;\"\u003e\n        \u003cp style=\"font-size: 12px; font-weight: bold; color: #b8960c; text-transform: uppercase; letter-spacing: 1px; margin: 0 0 6px 0;\"\u003eWind Rating\u003c\/p\u003e\n        \u003cp style=\"font-size: 20px; font-weight: bold; color: #1a1a1a; margin: 0 0 4px 0;\"\u003e132 MPH\u003c\/p\u003e\n        \u003cp style=\"font-size: 13px; color: #555; margin: 0;\"\u003eASCE 7-10 engineered. Single rating, no flag load.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cdiv style=\"background: #fff; border: 1px solid #DDD8CC; border-top: 3px solid #B8960C; padding: 18px;\"\u003e\n        \u003cp style=\"font-size: 12px; font-weight: bold; color: #b8960c; text-transform: uppercase; letter-spacing: 1px; margin: 0 0 6px 0;\"\u003eGuarantee\u003c\/p\u003e\n        \u003cp style=\"font-size: 20px; font-weight: bold; color: #1a1a1a; margin: 0 0 4px 0;\"\u003e7 Years\u003c\/p\u003e\n        \u003cp style=\"font-size: 13px; color: #555; margin: 0;\"\u003eFree shipping USA. Made in Sun Valley, Idaho.\u003c\/p\u003e\n    \u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background:#1a1a1a;padding:18px 22px;border-left:4px solid #B8960C;margin:0 0 28px 0;max-width:860px;\"\u003e\n    \u003cp style=\"margin:0 0 6px 0;font-size:12px;font-weight:bold;color:#B8960C;text-transform:uppercase;letter-spacing:1px;\"\u003eField Report — Phoenix, AZ HOA\u003c\/p\u003e\n    \u003cp style=\"margin:0 0 10px 0;font-size:15px;line-height:1.6;color:#e8e8e8;\"\u003e“160–6M with the 16' DX Flagpole and SGC-237. Excellent solution for HOA community ham radio operation.” Confirmed SWR on every band from 160 through 6 meters. HOA height restriction: 16 feet maximum.\u003c\/p\u003e\n    \u003cp style=\"margin:0;font-size:12px;color:#aaa;\"\u003e— Roy · KJ7CWQ · 16' DXF (same VDA core) · Verified Owner\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"max-width: 860px; margin: 0 0 28px 0;\"\u003e\n    \u003cp style=\"font-size: 11px; text-transform: uppercase; letter-spacing: 2.5px; color: #b8960c; font-weight: bold; margin: 0 0 8px 0;\"\u003eThe Physics\u003c\/p\u003e\n    \u003ch3 style=\"font-size: 19px; font-weight: bold; color: #1a1a1a; margin: 0 0 10px 0;\"\u003eWhy No Radials — and Why It Works\u003c\/h3\u003e\n    \u003cp style=\"font-size: 15px; color: #555; line-height: 1.65; margin: 0 0 12px 0;\"\u003eTraditional quarter-wave verticals feed at the current maximum at the base — pushing maximum I²R loss directly through soil. Every ohm of ground resistance sits in series with your radiation resistance, stealing signal before it leaves your yard.\u003c\/p\u003e\n    \u003cp style=\"font-size: 15px; color: #555; line-height: 1.65; margin: 0 0 12px 0;\"\u003eThe Greyline VDA is a vertical dipole. Covers 160–6M from a single feedpoint with no radials. Return current flows through the lower element, not through a buried radial field — significantly reducing ground coupling. Strong performer on 20M and above. Near 1\/2λ on 10 meters. Consistent on any mounting surface.\u003c\/p\u003e\n    \u003cp style=\"font-size: 13px; color: #888; margin: 0 0 16px 0;\"\u003eThe physics behind the no-radial vertical dipole is established, published work — the full reference shelf is cited below, and a deeper VDA explainer lives in the Signal Lab for further study.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #f9f8f6; border: 1px solid #DDD8CC; border-left: 4px solid #B8960C; padding: 14px 18px; max-width: 860px; margin: 0 0 28px 0;\"\u003e\n    \u003cp style=\"font-size: 12px; font-weight: bold; color: #b8960c; text-transform: uppercase; letter-spacing: 1px; margin: 0 0 6px 0;\"\u003eBefore You Install — Run a Noise Audit\u003c\/p\u003e\n    \u003cp style=\"font-size: 14px; color: #555; line-height: 1.65; margin: 0 0 8px 0;\"\u003eThe VDA's 2-inch pole footprint is the smallest ground signature of any full-HF-coverage antenna. A traditional radial field extends hundreds of feet at 160 meters — running toward every noise source on the property. The VDA goes where you choose. Grab a battery-powered AM radio, tune off any broadcast station, walk your property, and find the quietest spot. That's where the pole goes.\u003c\/p\u003e\n    \u003ca style=\"font-size: 12px; font-weight: bold; color: #b8960c; text-decoration: none; text-transform: uppercase; letter-spacing: 1px;\" href=\"\/ja\/pages\/assembly-documents\"\u003eFull Installation Guide →\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"max-width: 860px; margin: 0 0 28px 0;\"\u003e\n    \u003cp style=\"font-size: 11px; text-transform: uppercase; letter-spacing: 2.5px; color: #b8960c; font-weight: bold; margin: 0 0 8px 0;\"\u003eIn the Box\u003c\/p\u003e\n    \u003ch3 style=\"font-size: 19px; font-weight: bold; color: #1a1a1a; margin: 0 0 14px 0;\"\u003eEverything You Need. Nothing You Don't.\u003c\/h3\u003e\n    \u003cdiv style=\"background: #fff; border: 1px solid #DDD8CC; border-top: 3px solid #B8960C; padding: 18px; max-width: 420px;\"\u003e\n        \u003cp style=\"font-size: 12px; font-weight: bold; color: #b8960c; text-transform: uppercase; letter-spacing: 1px; margin: 0 0 10px 0;\"\u003eAntenna System\u003c\/p\u003e\n        \u003cul style=\"margin: 0; padding: 0 0 0 16px; color: #555; font-size: 14px; line-height: 1.8;\"\u003e\n            \u003cli\u003e16' DXV HF Vertical VDA Radiator\u003c\/li\u003e\n            \u003cli\u003eRF Choke \u0026amp; Precision Feedline Hardware\u003c\/li\u003e\n            \u003cli\u003eGround Sleeve Kit\u003c\/li\u003e\n            \u003cli\u003eAssembly Manual \u0026amp; Tuning Guide\u003c\/li\u003e\n            \u003cli\u003e7-Year Performance Guarantee\u003c\/li\u003e\n        \u003c\/ul\u003e\n    \u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"max-width: 860px; margin: 0 0 28px 0;\"\u003e\n    \u003cp style=\"font-size: 11px; text-transform: uppercase; letter-spacing: 2.5px; color: #b8960c; font-weight: bold; margin: 0 0 8px 0;\"\u003eStructural Engineering\u003c\/p\u003e\n    \u003ch3 style=\"font-size: 19px; font-weight: bold; color: #1a1a1a; margin: 0 0 10px 0;\"\u003eBuilt for Real Weather\u003c\/h3\u003e\n    \u003cp style=\"font-size: 15px; color: #555; line-height: 1.65; margin: 0 0 14px 0;\"\u003eEvery DXV carries a single wind rating — no flag load variable. ASCE 7-10 engineered throughout.\u003c\/p\u003e\n    \u003ctable style=\"width: 100%; border-collapse: collapse; font-size: 14px; margin: 0 0 10px 0;\"\u003e\n        \u003cthead\u003e\n            \u003ctr style=\"background: #1a1a1a; color: #fff; text-align: left;\"\u003e\n                \u003cth style=\"padding: 10px 14px;\"\u003eModel\u003c\/th\u003e\n                \u003cth style=\"padding: 10px 14px;\"\u003eWind Rating\u003c\/th\u003e\n                \u003cth style=\"padding: 10px 14px;\"\u003eStandard\u003c\/th\u003e\n            \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n            \u003ctr style=\"background: #f9f8f6;\"\u003e\n                \u003ctd style=\"padding: 10px 14px; color: #888;\"\u003eDXV12\u003c\/td\u003e\n                \u003ctd style=\"padding: 10px 14px; color: #888;\"\u003e175 MPH\u003c\/td\u003e\n                \u003ctd style=\"padding: 10px 14px; color: #888;\"\u003eASCE 7-10\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr style=\"background: #fff;\"\u003e\n                \u003ctd style=\"padding: 10px 14px; font-weight: bold; color: #b8960c;\"\u003eDXV16\u003c\/td\u003e\n                \u003ctd style=\"padding: 10px 14px; font-weight: bold;\"\u003e132 MPH\u003c\/td\u003e\n                \u003ctd style=\"padding: 10px 14px; color: #888;\"\u003eASCE 7-10\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr style=\"background: #f9f8f6;\"\u003e\n                \u003ctd style=\"padding: 10px 14px; color: #888;\"\u003eDXV20\u003c\/td\u003e\n                \u003ctd style=\"padding: 10px 14px; color: #888;\"\u003e105 MPH\u003c\/td\u003e\n                \u003ctd style=\"padding: 10px 14px; color: #888;\"\u003eASCE 7-10\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr style=\"background: #fff;\"\u003e\n                \u003ctd style=\"padding: 10px 14px; color: #888;\"\u003eDXV24\u003c\/td\u003e\n                \u003ctd style=\"padding: 10px 14px; color: #888;\"\u003e82 MPH\u003c\/td\u003e\n                \u003ctd style=\"padding: 10px 14px; color: #888;\"\u003eASCE 7-10\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr style=\"background: #f9f8f6;\"\u003e\n                \u003ctd style=\"padding: 10px 14px; color: #888;\"\u003eDXV28\u003c\/td\u003e\n                \u003ctd style=\"padding: 10px 14px; color: #888;\"\u003e65 MPH\u003c\/td\u003e\n                \u003ctd style=\"padding: 10px 14px; color: #888;\"\u003eASCE 7-10\u003c\/td\u003e\n            \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n    \u003c\/table\u003e\n    \u003cp style=\"font-size: 12px; color: #888; margin: 0;\"\u003eRatings per ASCE 7-10.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"max-width: 860px; margin: 0 0 28px 0;\"\u003e\n    \u003cp style=\"font-size: 11px; text-transform: uppercase; letter-spacing: 2.5px; color: #b8960c; font-weight: bold; margin: 0 0 8px 0;\"\u003eTake It Further\u003c\/p\u003e\n    \u003ch3 style=\"font-size: 19px; font-weight: bold; color: #1a1a1a; margin: 0 0 14px 0;\"\u003eUpgrades That Actually Move the Needle\u003c\/h3\u003e\n    \u003cdiv style=\"display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 16px;\"\u003e\n        \u003cdiv style=\"background: #fff; border: 1px solid #DDD8CC; border-top: 3px solid #B8960C; padding: 18px;\"\u003e\n            \u003cp style=\"font-size: 12px; font-weight: bold; color: #b8960c; text-transform: uppercase; letter-spacing: 1px; margin: 0 0 6px 0;\"\u003e9' DX Whip\u003c\/p\u003e\n            \u003cp style=\"font-size: 14px; color: #555; line-height: 1.6; margin: 0 0 8px 0;\"\u003eAdds 9 feet of aperture. Up to 3.5 dBi additional gain potential on the key DX bands. Lightweight, stealthy.\u003c\/p\u003e\n            \u003ca style=\"font-size: 12px; font-weight: bold; color: #b8960c; text-decoration: none; text-transform: uppercase; letter-spacing: 1px;\" href=\"\/ja\/products\/9-foot-whip-for-greyline-antennas\"\u003eView Whip →\u003c\/a\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"background: #fff; border: 1px solid #DDD8CC; border-top: 3px solid #B8960C; padding: 18px;\"\u003e\n            \u003cp style=\"font-size: 12px; font-weight: bold; color: #b8960c; text-transform: uppercase; letter-spacing: 1px; margin: 0 0 6px 0;\"\u003eLDG RT-100 Bundle\u003c\/p\u003e\n            \u003cp style=\"font-size: 14px; color: #555; line-height: 1.6; margin: 0 0 8px 0;\"\u003e125W weatherproof remote tuner at the feedpoint. DC over coax. One-button tuning 160–6M. Bundle and save.\u003c\/p\u003e\n            \u003ca style=\"font-size: 12px; font-weight: bold; color: #b8960c; text-decoration: none; text-transform: uppercase; letter-spacing: 1px;\" href=\"\/ja\/collections\/bundle-dx-flagpole-antenna-remote-antenna-tuner\"\u003eView Bundle →\u003c\/a\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"background: #fff; border: 1px solid #DDD8CC; border-top: 3px solid #B8960C; padding: 18px;\"\u003e\n            \u003cp style=\"font-size: 12px; font-weight: bold; color: #b8960c; text-transform: uppercase; letter-spacing: 1px; margin: 0 0 6px 0;\"\u003eWant a Flagpole?\u003c\/p\u003e\n            \u003cp style=\"font-size: 14px; color: #555; line-height: 1.6; margin: 0 0 8px 0;\"\u003eThe DXF16 delivers identical VDA performance in a premium flagpole with HOA documents included.\u003c\/p\u003e\n            \u003ca style=\"font-size: 12px; font-weight: bold; color: #b8960c; text-decoration: none; text-transform: uppercase; letter-spacing: 1px;\" href=\"\/ja\/collections\/hoa-flagpole-antenna\/products\/16-foot-flagpole-antenna\"\u003eSee the DXF16 →\u003c\/a\u003e\n        \u003c\/div\u003e\n    \u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"max-width: 860px; margin: 0 0 28px 0; padding: 14px 18px; border: 1px solid #DDD8CC; background: #fff;\"\u003e\n    \u003cp style=\"font-size: 12px; font-weight: bold; color: #b8960c; text-transform: uppercase; letter-spacing: 1px; margin: 0 0 6px 0;\"\u003eFeed System Note\u003c\/p\u003e\n    \u003cp style=\"font-size: 13px; color: #555; margin: 0; line-height: 1.6;\"\u003e\n        The DXV is a balanced VDA — tuner and RF choke must maintain a floating balanced feed. See the \n        \u003ca style=\"color: #b8960c; text-decoration: none;\" href=\"\/ja\/blogs\/news\/correctly-configuring-the-flagpole-tuner-and-balun-feed-system\"\u003eTuner \u0026amp; Balun Configuration Guide →\u003c\/a\u003e\n    \u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"max-width: 860px; margin: 0 0 28px 0;\"\u003e\n    \u003cp style=\"font-size: 11px; text-transform: uppercase; letter-spacing: 2.5px; color: #b8960c; font-weight: bold; margin: 0 0 8px 0;\"\u003eSpecs \u0026amp; Shipping\u003c\/p\u003e\n    \u003ctable style=\"width: 100%; border-collapse: collapse; font-size: 14px;\"\u003e\n        \u003ctbody\u003e\n            \u003ctr style=\"background: #1a1a1a; color: #fff;\"\u003e\n                \u003cth style=\"padding: 10px 14px; text-align: left;\"\u003eSpec\u003c\/th\u003e\n                \u003cth style=\"padding: 10px 14px; text-align: left;\"\u003eDetail\u003c\/th\u003e\n            \u003c\/tr\u003e\n            \u003ctr style=\"background: #f9f8f6;\"\u003e\n                \u003ctd style=\"padding: 10px 14px; color: #555;\"\u003eHeight\u003c\/td\u003e\n                \u003ctd style=\"padding: 10px 14px; font-weight: bold;\"\u003e16 feet\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr\u003e\n                \u003ctd style=\"padding: 10px 14px; color: #555;\"\u003eBand Coverage\u003c\/td\u003e\n                \u003ctd style=\"padding: 10px 14px; font-weight: bold;\"\u003e160–6M (all HF + 6M)\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr style=\"background: #f9f8f6;\"\u003e\n                \u003ctd style=\"padding: 10px 14px; color: #555;\"\u003eDesign\u003c\/td\u003e\n                \u003ctd style=\"padding: 10px 14px; font-weight: bold;\"\u003eVDA — Vertical Dipole Antenna, OCF\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr\u003e\n                \u003ctd style=\"padding: 10px 14px; color: #555;\"\u003ePower Handling\u003c\/td\u003e\n                \u003ctd style=\"padding: 10px 14px; font-weight: bold;\"\u003eLegal limit — constrained only by ATU rating\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr style=\"background: #f9f8f6;\"\u003e\n                \u003ctd style=\"padding: 10px 14px; color: #555;\"\u003eRadials Required\u003c\/td\u003e\n                \u003ctd style=\"padding: 10px 14px; font-weight: bold;\"\u003eNone\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr\u003e\n                \u003ctd style=\"padding: 10px 14px; color: #555;\"\u003eMaterial\u003c\/td\u003e\n                \u003ctd style=\"padding: 10px 14px; font-weight: bold;\"\u003e6061-T6 Aircraft-Grade Aluminum + Fiberglass\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr style=\"background: #f9f8f6;\"\u003e\n                \u003ctd style=\"padding: 10px 14px; color: #555;\"\u003eWind Rating\u003c\/td\u003e\n                \u003ctd style=\"padding: 10px 14px; font-weight: bold;\"\u003e132 MPH — ASCE 7-10\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr\u003e\n                \u003ctd style=\"padding: 10px 14px; color: #555;\"\u003eShipping\u003c\/td\u003e\n                \u003ctd style=\"padding: 10px 14px; font-weight: bold;\"\u003eFree — USA. International rates at checkout.\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr style=\"background: #f9f8f6;\"\u003e\n                \u003ctd style=\"padding: 10px 14px; color: #555;\"\u003eMade In\u003c\/td\u003e\n                \u003ctd style=\"padding: 10px 14px; font-weight: bold;\"\u003eSun Valley, Idaho — USA\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr\u003e\n                \u003ctd style=\"padding: 10px 14px; color: #555;\"\u003eGuarantee\u003c\/td\u003e\n                \u003ctd style=\"padding: 10px 14px; font-weight: bold;\"\u003e7-Year Performance Guarantee\u003c\/td\u003e\n            \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n    \u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 12px; max-width: 860px; margin: 0 0 28px 0;\"\u003e\n    \u003ca style=\"display: block; text-align: center; background: #fff; color: #1a1a1a; border: 1px solid #DDD8CC; padding: 11px 16px; font-size: 12px; font-weight: bold; text-transform: uppercase; letter-spacing: 1px; text-decoration: none;\" href=\"\/ja\/collections\/vertical-antenna\/products\/12-foot-vertical-antenna\"\u003e← DXV12\u003c\/a\u003e\n    \u003ca style=\"display: block; text-align: center; background: #fff; color: #1a1a1a; border: 1px solid #DDD8CC; padding: 11px 16px; font-size: 12px; font-weight: bold; text-transform: uppercase; letter-spacing: 1px; text-decoration: none;\" href=\"\/ja\/pages\/antenna-selection-guide\"\u003eSelection Guide\u003c\/a\u003e\n    \u003ca style=\"display: block; text-align: center; background: #fff; color: #1a1a1a; border: 1px solid #DDD8CC; padding: 11px 16px; font-size: 12px; font-weight: bold; text-transform: uppercase; letter-spacing: 1px; text-decoration: none;\" href=\"\/ja\/collections\/vertical-antenna\/products\/20-foot-vertical-antenna\"\u003eDXV20 →\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cstyle\u003e\n.gp-faq details {\n    border: 1px solid #DDD8CC;\n    margin: 0 0 8px 0;\n}\n\n.gp-faq summary {\n    padding: 14px 18px;\n    font-size: 14px;\n    font-weight: 700;\n    color: #1a1a1a;\n    cursor: pointer;\n    list-style: none;\n    display: flex;\n    justify-content: space-between;\n    align-items: center;\n}\n\n.gp-faq summary::-webkit-details-marker {\n    display: none;\n}\n\n.gp-faq summary::after {\n    content: \"+\";\n    color: #B8960C;\n    font-size: 18px;\n    font-weight: 400;\n    flex-shrink: 0;\n    margin-left: 16px;\n}\n\n.gp-faq details[open] summary::after {\n    content: \"-\";\n}\n\n.gp-faq details[open] summary {\n    color: #B8960C;\n}\n\n.gp-faq .fb {\n    padding: 0 18px 16px 18px;\n    border-top: 1px solid #DDD8CC;\n}\n\n.gp-faq .fb p {\n    font-size: 14px;\n    color: #555;\n    line-height: 1.65;\n    margin: 12px 0 0 0;\n}\n\n.gp-faq .fb a {\n    color: #B8960C;\n    text-decoration: none;\n}\n\n.gp-faq .fc {\n    font-size: 13px;\n    color: #555;\n    margin: 4px 0 0 0;\n}\n\n.gp-faq .fh {\n    font-size: 13px;\n    color: #B8960C;\n    font-weight: 700;\n    margin: 8px 0 0 0;\n}\n\u003c\/style\u003e\n\u003cdiv style=\"background: #f9f8f6; border: 1px solid #e0dbd0; padding: 13px 18px; margin: 0 0 14px;\"\u003e\n    \u003cp style=\"font-size: 13px; color: #555; line-height: 1.65; margin: 0;\"\u003e\n        \u003cstrong style=\"color: #1a1a1a;\"\u003eDXV or DXF?\u003c\/strong\u003e\n         Same VDA core. The \n        \u003ca style=\"color: #b8960c; text-decoration: none;\" href=\"\/ja\/collections\/hoa-flagpole-antenna\/products\/16-foot-flagpole-antenna\"\u003eDXF16\u003c\/a\u003e\n         adds flagpole hardware, flag kit, and HOA Architectural Brief. Choose DXV for rooftop, deck, or any non-HOA install.\n    \u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin: 0 0 14px;\"\u003e\n    \u003cdiv style=\"background: #1a1a1a; border-top: 3px solid #B8960C; padding: 20px 16px;\"\u003e\n        \u003cp style=\"font-family: 'Courier New',monospace; font-size: 10px; letter-spacing: 2px; color: #b8960c; text-transform: uppercase; margin: 0 0 6px;\"\u003eWind Rating\u003c\/p\u003e\n        \u003cp style=\"font-size: 36px; font-weight: bold; color: #ffffff; line-height: 1; margin: 0 0 4px;\"\u003e\n            132 \n            \u003cspan style=\"font-size: 15px; font-weight: 400; color: #b0b0b0;\"\u003eMPH\u003c\/span\u003e\n        \u003c\/p\u003e\n        \u003cp style=\"font-size: 11px; color: #b0b0b0; margin: 0 0 10px;\"\u003eASCE 7-10 · Single rating — no flag load\u003c\/p\u003e\n        \u003cp style=\"font-size: 13px; color: #e8e8e8; line-height: 1.6; margin: 0;\"\u003eStrong suburban rating. Compact lots, rooftop installs, side yards. Meaningful step up on 40M and 80M over the 12'.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cdiv style=\"background: #1a1a1a; border-top: 3px solid #B8960C; padding: 20px 16px;\"\u003e\n        \u003cp style=\"font-family: 'Courier New',monospace; font-size: 10px; letter-spacing: 2px; color: #b8960c; text-transform: uppercase; margin: 0 0 6px;\"\u003e5\/8λ Sweet Spot\u003c\/p\u003e\n        \u003cp style=\"font-size: 36px; font-weight: bold; color: #ffffff; line-height: 1; margin: 0 0 4px;\"\u003e10M\u003c\/p\u003e\n        \u003cp style=\"font-size: 11px; color: #b0b0b0; margin: 0 0 10px;\"\u003eNear 1\/2λ on 10M\u003c\/p\u003e\n        \u003cp style=\"font-size: 13px; color: #e8e8e8; line-height: 1.6; margin: 0;\"\u003eApproaches half-wave on 10M. Strong 15M and 12M. Covers 160–6M, no radials, no traps.\u003c\/p\u003e\n    \u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background:#ffffff; border:1px solid #e0dbd0; border-left:4px solid #B8960C; padding:18px 22px; margin:0 0 14px;\"\u003e\n    \u003cp style=\"font-size:11px; font-weight:700; color:#B8960C; text-transform:uppercase; letter-spacing:1.5px; margin:0 0 10px;\"\u003eConstruction — 6061-T6 Aircraft Aluminum\u003c\/p\u003e\n    \u003cp style=\"font-size:14px; color:#444; line-height:1.75; margin:0 0 10px;\"\u003e\n        \u003cstrong style=\"color:#1a1a1a;\"\u003eOutside:\u003c\/strong\u003e\n         2\" OD, full length — uniform profile top to bottom. Clean. Sleek. Invisible as an antenna. \n        \u003cstrong style=\"color:#1a1a1a;\"\u003eInside:\u003c\/strong\u003e\n         wall graduates where the physics demands it — \n        \u003cstrong style=\"color:#1a1a1a;\"\u003e0.125\" lower 30%\u003c\/strong\u003e\n         where base bending stress peaks, \n        \u003cstrong style=\"color:#1a1a1a;\"\u003e0.065\" upper 70%\u003c\/strong\u003e\n         where reducing mass at height lowers dynamic wind loads. Zero plastic. All-metal. McMaster-Carr hardware throughout.\n    \u003c\/p\u003e\n    \u003cp style=\"font-size:14px; color:#444; line-height:1.75; margin:0 0 10px;\"\u003e\n        At 16 feet, the Greyline VDA presents \n        \u003cstrong style=\"color:#1a1a1a;\"\u003e2.67 square feet\u003c\/strong\u003e\n         of wind surface — height × outer diameter. A competing design using a larger diameter at the same height presents proportionally more. Wind force scales with projected area linearly and with velocity squared — doubling the diameter does not double the problem, it dramatically compounds it. More mass at height also increases dynamic fatigue loading on every oscillation cycle. Material where the physics demands it. Not where it adds weight without benefit.\n    \u003c\/p\u003e\n    \u003cp style=\"font-size:14px; color:#444; line-height:1.75; margin:0;\"\u003e\n        Every Greyline wind rating is derived from ASCE 7-10 structural engineering values — actual geometry, actual math, published methodology. \n        \u003cstrong style=\"color:#1a1a1a;\"\u003eA wind rating without a cited standard is a guess dressed as a spec.\u003c\/strong\u003e\n         Ask any antenna maker which standard they used. If they can't cite one, you have your answer.\n    \u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #1a1a1a; border: 1px solid rgba(184,150,12,0.28); border-top: 4px solid #B8960C; padding: 24px 22px; margin: 0 0 32px;\"\u003e\n    \u003cp style=\"display: inline-block; background: #B8960C; color: #000000; font-family: 'Courier New',monospace; font-size: 10px; font-weight: bold; letter-spacing: 3px; text-transform: uppercase; padding: 4px 12px; margin: 0 0 14px;\"\u003eLimited Edition · Artisan Production Run\u003c\/p\u003e\n    \u003cp style=\"font-size: 17px; font-weight: bold; color: #ffffff; line-height: 1.35; margin: 0 0 10px;\"\u003eThis unit was built by hand — one at a time — by someone who knows every inch of it.\u003c\/p\u003e\n    \u003cp style=\"font-size: 14px; color: #e8e8e8; line-height: 1.75; margin: 0 0 10px;\"\u003e\n        Same engineering. Same guarantee. \n        \u003cstrong style=\"color: #ffffff;\"\u003eThreaded metal-to-metal section marriages\u003c\/strong\u003e\n         — no compression collars, no through-bolting. Cleaner joint, less weight, same ASCE 7-10 wind ratings.\n    \u003c\/p\u003e\n    \u003cp style=\"font-size: 14px; color: #e8e8e8; line-height: 1.75; margin: 0;\"\u003e\n        Manufacturing expanding. Things coming this year. \n        \u003cstrong style=\"color: #ffffff;\"\u003eWatch this space.\u003c\/strong\u003e\n    \u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"max-width: 860px; margin: 0 0 28px 0;\"\u003e\n    \u003cp style=\"font-size: 11px; text-transform: uppercase; letter-spacing: 2.5px; color: #b8960c; font-weight: bold; margin: 0 0 8px 0;\"\u003eCommon Questions\u003c\/p\u003e\n    \u003ch3 style=\"font-size: 19px; font-weight: bold; color: #1a1a1a; margin: 0 0 16px 0;\"\u003eBefore You Order — Answered.\u003c\/h3\u003e\n    \u003cdiv class=\"gp-faq\"\u003e\n        \u003cdetails\u003e\n            \u003csummary\u003eWhat's the current lead time and availability?\u003c\/summary\u003e\n            \u003cdiv class=\"fb\"\u003e\n                \u003cp\u003e\n                    Each antenna is hand-built to order during our current artisan production run — typical lead time runs a few weeks, returning to ship-from-stock as the run completes. Current lead time is always posted on our \n                    \u003ca href=\"\/ja\/pages\/order-status-updates-for-greyline-performance\"\u003eOrder Status page →\u003c\/a\u003e\n                     Call 435-200-4902 for a specific ship date.\n                \u003c\/p\u003e\n            \u003c\/div\u003e\n        \u003c\/details\u003e\n        \u003cdetails\u003e\n            \u003csummary\u003eHow long does shipping take once it leaves Sun Valley?\u003c\/summary\u003e\n            \u003cdiv class=\"fb\"\u003e\n                \u003cp\u003eUSA shipping is free. Ground transit runs 2–5 business days from Sun Valley, Idaho. Tracking sent at shipment. International rates calculated at checkout.\u003c\/p\u003e\n            \u003c\/div\u003e\n        \u003c\/details\u003e\n        \u003cdetails\u003e\n            \u003csummary\u003eWhat's included — do I need to source anything separately?\u003c\/summary\u003e\n            \u003cdiv class=\"fb\"\u003e\n                \u003cp\u003eEverything to assemble and mount is in the box. You supply coax and an ATU. That's it.\u003c\/p\u003e\n                \u003cp class=\"fc\"\u003e✓ VDA Radiator (your chosen height)\u003c\/p\u003e\n                \u003cp class=\"fc\"\u003e✓ RF Choke \u0026amp; Precision Feedline Hardware\u003c\/p\u003e\n                \u003cp class=\"fc\"\u003e✓ Ground Sleeve Kit — in-ground, tower, roof, deck, dock compatible\u003c\/p\u003e\n                \u003cp class=\"fc\"\u003e✓ Assembly Manual \u0026amp; Tuning Guide\u003c\/p\u003e\n                \u003cp class=\"fc\"\u003e✓ 7-Year Performance Guarantee\u003c\/p\u003e\n            \u003c\/div\u003e\n        \u003c\/details\u003e\n        \u003cdetails\u003e\n            \u003csummary\u003eDo I need an ATU — will my radio's internal tuner work?\u003c\/summary\u003e\n            \u003cdiv class=\"fb\"\u003e\n                \u003cp\u003eYes, an external ATU is required. The VDA presents variable impedance across its operating range — that's how it covers 160–6M from a single feedpoint with no traps and no radials. Most internal tuners won't handle the full impedance range on every band.\u003c\/p\u003e\n                \u003cp\u003e\n                    An external ATU lives in one of two places, and both are right depending on your run. For a short feedline run, a desktop ATU at the radio is the simpler path — it stays warm and dry indoors and you can hear it tune. For a longer run, a weatherproof remote ATU at the antenna base keeps the match close to the feedpoint; the \n                    \u003ca href=\"\/ja\/products\/greyline-antenna-tuner-ldg-rt100-atu\"\u003eLDG RT-100\u003c\/a\u003e\n                     is a low-cost 125W fit for that job. Either way, note that all ATUs carry a reduced power rating for digital modes (FT8, Winlink, JS8Call) due to 100% duty cycle heat loading — check your tuner's digital rating before running full power on those modes. Running high power? The antenna handles the full legal limit on every band — the tuner is the only ceiling, and higher-power ATU options are available. \n                    \u003ca href=\"\/ja\/collections\/bundle-dx-flagpole-antenna-remote-antenna-tuner\"\u003eAntenna + ATU bundles →\u003c\/a\u003e\n                \u003c\/p\u003e\n            \u003c\/div\u003e\n        \u003c\/details\u003e\n        \u003cdetails\u003e\n            \u003csummary\u003eIs the ATU bundle the best value?\u003c\/summary\u003e\n            \u003cdiv class=\"fb\"\u003e\n                \u003cp\u003e\n                    Yes. Every DXV is available bundled with the LDG RT-100 at a discount. Free shipping USA. \n                    \u003ca href=\"\/ja\/collections\/bundle-dx-flagpole-antenna-remote-antenna-tuner\"\u003eShop all bundles →\u003c\/a\u003e\n                \u003c\/p\u003e\n            \u003c\/div\u003e\n        \u003c\/details\u003e\n        \u003cdetails\u003e\n            \u003csummary\u003eHow difficult is installation? How long does it take?\u003c\/summary\u003e\n            \u003cdiv class=\"fb\"\u003e\n                \u003cp\u003eMost operators are on the air in under an hour. Dig a post hole, build the antenna sections (15–30 min), drop it in, run coax, connect the ATU. All stainless hardware comes pre-fastened — no loose hardware to lose in the grass.\u003c\/p\u003e\n                \u003cp\u003e\n                    Assembly documents at \n                    \u003ca href=\"\/ja\/pages\/assembly-documents\"\u003eSetup \u0026amp; Manuals →\u003c\/a\u003e\n                     Questions during install? Call 435-200-4902.\n                \u003c\/p\u003e\n            \u003c\/div\u003e\n        \u003c\/details\u003e\n        \u003cdetails\u003e\n            \u003csummary\u003eWhat does the 7-Year Guarantee cover?\u003c\/summary\u003e\n            \u003cdiv class=\"fb\"\u003e\n                \u003cp\u003e\n                    Seven years of performance coverage. If it fails under normal operating conditions, we make it right. No questions asked. A customer's antenna fell in a severe ice storm — we sent a replacement immediately. Full terms at \n                    \u003ca href=\"\/ja\/policies\/refund-policy\"\u003e7-Year Warranty Policy →\u003c\/a\u003e\n                \u003c\/p\u003e\n            \u003c\/div\u003e\n        \u003c\/details\u003e\n    \u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- AUTHORITY ANCHOR BLOCK --\u003e\n\u003cdiv style=\"margin: 32px 0; padding: 24px 28px; background: #fafaf7; border-left: 3px solid #B8960C; font-family: Georgia, 'Times New Roman', serif; font-size: 15px; line-height: 1.7; color: #2a2a2a;\"\u003e\n    \u003cdiv style=\"color: #B8960C; font-size: 11px; letter-spacing: 2.5px; text-transform: uppercase; margin-bottom: 10px;\"\u003eWhy this antenna works\u003c\/div\u003e\n    \u003cp style=\"margin: 0 0 12px 0;\"\u003eEvery Greyline design decision traces back to named, published antenna physics — Zavrel W7SX, Kraus W8JK, Severns N6LF on ground systems, Maxwell W2DU on transmission lines, Lewallen W7EL on modeling. Not opinions. Cited works.\u003c\/p\u003e\n    \u003cp style=\"margin: 0; font-size: 14px; color: #555;\"\u003e\n        The full shelf — Zavrel, Kraus, Severns, Maxwell, Lewallen — lives under \n        \u003cem\u003eThe Signal Lab · The Shelf We Read From\u003c\/em\u003e\n         in the menu, open to everyone.\n    \u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- \/AUTHORITY ANCHOR BLOCK --\u003e\n\u003cdiv style=\"max-width: 860px; border-top: 1px solid #DDD8CC; padding-top: 16px; margin: 0 0 8px 0;\"\u003e\n    \u003cp style=\"font-size: 13px; color: #888; font-style: italic; margin: 0;\"\u003eHam Radio is fun again! Pass it on... 73, The Greyline Performance Team · Sun Valley, Idaho · 435-200-4902\u003c\/p\u003e\n\u003c\/div\u003e\n","brand":"Greyline Performance","offers":[{"title":"Default Title","offer_id":15231765184579,"sku":"DXV16","price":950.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0028\/2571\/5779\/products\/DX_Vertical_Antenna-16ft-min.jpg?v=1770159456"},{"product_id":"20-foot-vertical-antenna","title":"20' HF Vertical Antenna | 160-6M | No Radials | Greyline Performance","description":"\u003c!-- DXV20 PRODUCT PAGE | Paste into Shopify Products \u003e Description \u003e HTML source view --\u003e\n\u003cdiv style=\"max-width: 860px; margin: 0 auto; padding: 0 0 8px 0;\"\u003e\n    \u003cp style=\"font-size: 11px; text-transform: uppercase; letter-spacing: 2.5px; color: #b8960c; font-weight: bold; margin: 0 0 8px 0;\"\u003eHF Vertical Antenna · 160–6M · No Radials · Made in USA\u003c\/p\u003e\n    \u003ch2 style=\"font-size: 26px; font-weight: bold; color: #1a1a1a; line-height: 1.25; margin: 0 0 14px 0;\"\u003eThe DXV20 — The Most Popular Vertical. Full HF Coverage.\u003c\/h2\u003e\n    \u003cp style=\"font-size: 15px; color: #555; line-height: 1.65; margin: 0 0 20px 0;\"\u003eThe DXV20 is the vertical most operators choose — full 160–6M coverage from one feedpoint, no radials, no ground system, any surface. Twenty feet of aperture covers every band and performs genuinely well across the spectrum. Go as tall as your site allows and you pick up bonus dB on the low bands, but the DXV20 is the height that fits most installs cleanly, and it does serious work on every band. Same OCF VDA physics as the full DXF lineup, in a clean bare vertical for rooftop, deck, and open-yard installs.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background:#1a1a1a;color:#e8e8e8;padding:18px 22px;border-left:4px solid #B8960C;margin:0 0 28px 0;max-width:860px;\"\u003e\n    \u003cp style=\"margin:0 0 6px 0;font-size:12px;font-weight:bold;color:#b8960c;text-transform:uppercase;letter-spacing:1px;\"\u003eDXV vs DXF — Same Physics, Different Profile\u003c\/p\u003e\n    \u003cp style=\"margin:0;font-size:15px;line-height:1.6;color:#e8e8e8;\"\u003e\n        The DXV is the bare vertical — no flagpole hardware, no flag kit. Same OCF VDA physics as the DXF. Choose DXV for rooftop, deck, commercial, POTA, or any install where the flagpole aesthetic isn't needed. Want the flagpole version? \n        \u003ca href=\"\/ja\/collections\/hoa-flagpole-antenna\/products\/20-foot-flagpole-antenna\" style=\"color:#b8960c;text-decoration:none;\"\u003eSee the DXF20 →\u003c\/a\u003e\n    \u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 16px; margin: 0 0 28px 0; max-width: 860px;\"\u003e\n    \u003cdiv style=\"background: #fff; border: 1px solid #DDD8CC; border-top: 3px solid #B8960C; padding: 18px;\"\u003e\n        \u003cp style=\"font-size: 12px; font-weight: bold; color: #b8960c; text-transform: uppercase; letter-spacing: 1px; margin: 0 0 6px 0;\"\u003eBand Coverage\u003c\/p\u003e\n        \u003cp style=\"font-size: 20px; font-weight: bold; color: #1a1a1a; margin: 0 0 4px 0;\"\u003e160–6M\u003c\/p\u003e\n        \u003cp style=\"font-size: 13px; color: #555; margin: 0;\"\u003eAll HF bands. One antenna.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cdiv style=\"background: #fff; border: 1px solid #DDD8CC; border-top: 3px solid #B8960C; padding: 18px;\"\u003e\n        \u003cp style=\"font-size: 12px; font-weight: bold; color: #b8960c; text-transform: uppercase; letter-spacing: 1px; margin: 0 0 6px 0;\"\u003eGround System\u003c\/p\u003e\n        \u003cp style=\"font-size: 20px; font-weight: bold; color: #1a1a1a; margin: 0 0 4px 0;\"\u003eNo Radials\u003c\/p\u003e\n        \u003cp style=\"font-size: 13px; color: #555; margin: 0;\"\u003eOne feedpoint. Any surface.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cdiv style=\"background: #fff; border: 1px solid #DDD8CC; border-top: 3px solid #B8960C; padding: 18px;\"\u003e\n        \u003cp style=\"font-size: 12px; font-weight: bold; color: #b8960c; text-transform: uppercase; letter-spacing: 1px; margin: 0 0 6px 0;\"\u003eGuarantee\u003c\/p\u003e\n        \u003cp style=\"font-size: 20px; font-weight: bold; color: #1a1a1a; margin: 0 0 4px 0;\"\u003e7 Years\u003c\/p\u003e\n        \u003cp style=\"font-size: 13px; color: #555; margin: 0;\"\u003eFree shipping USA. Made in Sun Valley, Idaho.\u003c\/p\u003e\n    \u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background:#1a1a1a;padding:18px 22px;border-left:4px solid #B8960C;margin:0 0 28px 0;max-width:860px;\"\u003e\n    \u003cp style=\"margin:0 0 6px 0;font-size:12px;font-weight:bold;color:#B8960C;text-transform:uppercase;letter-spacing:1px;\"\u003eField Report — Colorado HOA\u003c\/p\u003e\n    \u003cp style=\"margin:0 0 10px 0;font-size:15px;line-height:1.6;color:#e8e8e8;\"\u003e“I ran a defense antenna company for 7 years. I am very impressed with the look, quality, machining, and part fit. It is a professional-grade product.” HOA approved. Concrete foundation. FT8 DX confirmed to Hawaii, South America, Europe, and Africa.\u003c\/p\u003e\n    \u003cp style=\"margin:0;font-size:12px;color:#aaa;\"\u003e— Rob Freedman · WC0R · Retired Defense Antenna Executive · 20' DXF (same VDA core) · Verified Owner\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background:#1a1a1a;padding:18px 22px;border-left:4px solid #B8960C;margin:0 0 28px 0;max-width:860px;\"\u003e\n    \u003cp style=\"margin:0 0 6px 0;font-size:12px;font-weight:bold;color:#B8960C;text-transform:uppercase;letter-spacing:1px;\"\u003eField Report — HOA North Carolina\u003c\/p\u003e\n    \u003cp style=\"margin:0 0 10px 0;font-size:15px;line-height:1.6;color:#e8e8e8;\"\u003eARRL CW Sweepstakes: Clean Sweep — all 83 sections, 600+ QSOs from an HOA lot. WPX CW and ARRL DX CW: 1,000+ QSOs each. The tallest flagpole his HOA allows. “A Clean Sweep with my flagpole!”\u003c\/p\u003e\n    \u003cp style=\"margin:0;font-size:12px;color:#aaa;\"\u003e— Bill · K3WA · PVRC President · 20' DXF (same VDA core) · Verified Owner\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"max-width: 860px; margin: 0 0 28px 0;\"\u003e\n    \u003cp style=\"font-size: 11px; text-transform: uppercase; letter-spacing: 2.5px; color: #b8960c; font-weight: bold; margin: 0 0 8px 0;\"\u003eThe Physics\u003c\/p\u003e\n    \u003ch3 style=\"font-size: 19px; font-weight: bold; color: #1a1a1a; margin: 0 0 10px 0;\"\u003eWhy No Radials — and Why It Works\u003c\/h3\u003e\n    \u003cp style=\"font-size: 15px; color: #555; line-height: 1.65; margin: 0 0 12px 0;\"\u003eTraditional quarter-wave verticals feed at the current maximum at the base — pushing maximum I²R loss directly through soil. Every ohm of ground resistance sits in series with your radiation resistance, stealing signal before it leaves your yard.\u003c\/p\u003e\n    \u003cp style=\"font-size: 15px; color: #555; line-height: 1.65; margin: 0 0 12px 0;\"\u003eThe Greyline VDA is a vertical dipole. It works every band, 160–6M, from a single feedpoint with no radials — that is the headline. Return current flows through the lower element, not through a buried radial field, significantly reducing ground coupling and removing dependency on soil conductivity. On top of full coverage, the geometry peaks toward 5\/8λ on 10 meters for strong low-angle DX radiation — a bonus on the upper bands, not the whole story.\u003c\/p\u003e\n    \u003cp style=\"font-size: 13px; color: #888; margin: 0 0 16px 0;\"\u003eThe physics behind the no-radial vertical dipole is established, published work — the full reference shelf is cited below, and a deeper VDA explainer lives in the Signal Lab for further study.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #f9f8f6; border: 1px solid #DDD8CC; border-left: 4px solid #B8960C; padding: 14px 18px; max-width: 860px; margin: 0 0 28px 0;\"\u003e\n    \u003cp style=\"font-size: 12px; font-weight: bold; color: #b8960c; text-transform: uppercase; letter-spacing: 1px; margin: 0 0 6px 0;\"\u003eGain, Honestly\u003c\/p\u003e\n    \u003cp style=\"font-size: 14px; color: #555; line-height: 1.65; margin: 0;\"\u003e\n        Modeled gain figures and their references are stated on one sourced page so the numbers stay consistent everywhere. \n        \u003ca href=\"\/ja\/pages\/antenna-aperture-and-gain\" style=\"color: #b8960c; text-decoration: none;\"\u003eAperture \u0026amp; Gain — the modeled figures →\u003c\/a\u003e\n    \u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #f9f8f6; border: 1px solid #DDD8CC; border-left: 4px solid #B8960C; padding: 14px 18px; max-width: 860px; margin: 0 0 28px 0;\"\u003e\n    \u003cp style=\"font-size: 12px; font-weight: bold; color: #b8960c; text-transform: uppercase; letter-spacing: 1px; margin: 0 0 6px 0;\"\u003eBefore You Install — Run a Noise Audit\u003c\/p\u003e\n    \u003cp style=\"font-size: 14px; color: #555; line-height: 1.65; margin: 0 0 8px 0;\"\u003eThe VDA's 2-inch pole footprint is the smallest ground signature of any full-HF-coverage antenna. A traditional radial field extends hundreds of feet at 160 meters — running toward every noise source on the property. The VDA goes where you choose. Grab a battery-powered AM radio, tune off any broadcast station, walk your property, and find the quietest spot. That's where the pole goes.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"max-width: 860px; margin: 0 0 28px 0;\"\u003e\n    \u003cp style=\"font-size: 11px; text-transform: uppercase; letter-spacing: 2.5px; color: #b8960c; font-weight: bold; margin: 0 0 8px 0;\"\u003eIn the Box\u003c\/p\u003e\n    \u003ch3 style=\"font-size: 19px; font-weight: bold; color: #1a1a1a; margin: 0 0 14px 0;\"\u003eEverything You Need. Nothing You Don't.\u003c\/h3\u003e\n    \u003cdiv style=\"background: #fff; border: 1px solid #DDD8CC; border-top: 3px solid #B8960C; padding: 18px; max-width: 420px;\"\u003e\n        \u003cp style=\"font-size: 12px; font-weight: bold; color: #b8960c; text-transform: uppercase; letter-spacing: 1px; margin: 0 0 10px 0;\"\u003eAntenna System\u003c\/p\u003e\n        \u003cul style=\"margin: 0; padding: 0 0 0 16px; color: #555; font-size: 14px; line-height: 1.8;\"\u003e\n            \u003cli\u003e20' DXV HF Vertical VDA Radiator\u003c\/li\u003e\n            \u003cli\u003eRF Choke \u0026amp; Precision Feedline Hardware\u003c\/li\u003e\n            \u003cli\u003eGround Sleeve Kit\u003c\/li\u003e\n            \u003cli\u003eAssembly Manual \u0026amp; Tuning Guide\u003c\/li\u003e\n            \u003cli\u003e7-Year Performance Guarantee\u003c\/li\u003e\n        \u003c\/ul\u003e\n    \u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"max-width: 860px; margin: 0 0 28px 0;\"\u003e\n    \u003cp style=\"font-size: 11px; text-transform: uppercase; letter-spacing: 2.5px; color: #b8960c; font-weight: bold; margin: 0 0 8px 0;\"\u003eStructural Engineering\u003c\/p\u003e\n    \u003ch3 style=\"font-size: 19px; font-weight: bold; color: #1a1a1a; margin: 0 0 10px 0;\"\u003eBuilt for Real Weather\u003c\/h3\u003e\n    \u003cp style=\"font-size: 15px; color: #555; line-height: 1.65; margin: 0 0 14px 0;\"\u003eEvery DXV carries a single wind rating — no flag load variable. ASCE 7-10 engineered throughout.\u003c\/p\u003e\n    \u003ctable style=\"width: 100%; border-collapse: collapse; font-size: 14px; margin: 0 0 10px 0;\"\u003e\n        \u003cthead\u003e\n            \u003ctr style=\"background: #1a1a1a; color: #fff; text-align: left;\"\u003e\n                \u003cth style=\"padding: 10px 14px;\"\u003eModel\u003c\/th\u003e\n                \u003cth style=\"padding: 10px 14px;\"\u003eWind Rating\u003c\/th\u003e\n                \u003cth style=\"padding: 10px 14px;\"\u003eStandard\u003c\/th\u003e\n            \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n            \u003ctr style=\"background: #f9f8f6;\"\u003e\n                \u003ctd style=\"padding: 10px 14px; color: #888;\"\u003eDXV12\u003c\/td\u003e\n                \u003ctd style=\"padding: 10px 14px; color: #888;\"\u003e175 MPH\u003c\/td\u003e\n                \u003ctd style=\"padding: 10px 14px; color: #888;\"\u003eASCE 7-10\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr style=\"background: #fff;\"\u003e\n                \u003ctd style=\"padding: 10px 14px; color: #888;\"\u003eDXV16\u003c\/td\u003e\n                \u003ctd style=\"padding: 10px 14px; color: #888;\"\u003e132 MPH\u003c\/td\u003e\n                \u003ctd style=\"padding: 10px 14px; color: #888;\"\u003eASCE 7-10\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr style=\"background: #f9f8f6;\"\u003e\n                \u003ctd style=\"padding: 10px 14px; font-weight: bold; color: #b8960c;\"\u003eDXV20\u003c\/td\u003e\n                \u003ctd style=\"padding: 10px 14px; font-weight: bold;\"\u003e105 MPH\u003c\/td\u003e\n                \u003ctd style=\"padding: 10px 14px; color: #888;\"\u003eASCE 7-10\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr style=\"background: #fff;\"\u003e\n                \u003ctd style=\"padding: 10px 14px; color: #888;\"\u003eDXV24\u003c\/td\u003e\n                \u003ctd style=\"padding: 10px 14px; color: #888;\"\u003e82 MPH\u003c\/td\u003e\n                \u003ctd style=\"padding: 10px 14px; color: #888;\"\u003eASCE 7-10\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr style=\"background: #f9f8f6;\"\u003e\n                \u003ctd style=\"padding: 10px 14px; color: #888;\"\u003eDXV28\u003c\/td\u003e\n                \u003ctd style=\"padding: 10px 14px; color: #888;\"\u003e65 MPH\u003c\/td\u003e\n                \u003ctd style=\"padding: 10px 14px; color: #888;\"\u003eASCE 7-10\u003c\/td\u003e\n            \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n    \u003c\/table\u003e\n    \u003cp style=\"font-size: 12px; color: #888; margin: 0;\"\u003eRatings per ASCE 7-10.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"max-width: 860px; margin: 0 0 28px 0;\"\u003e\n    \u003cp style=\"font-size: 11px; text-transform: uppercase; letter-spacing: 2.5px; color: #b8960c; font-weight: bold; margin: 0 0 8px 0;\"\u003eTake It Further\u003c\/p\u003e\n    \u003ch3 style=\"font-size: 19px; font-weight: bold; color: #1a1a1a; margin: 0 0 14px 0;\"\u003eUpgrades That Actually Move the Needle\u003c\/h3\u003e\n    \u003cdiv style=\"display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 16px;\"\u003e\n        \u003cdiv style=\"background: #fff; border: 1px solid #DDD8CC; border-top: 3px solid #B8960C; padding: 18px;\"\u003e\n            \u003cp style=\"font-size: 12px; font-weight: bold; color: #b8960c; text-transform: uppercase; letter-spacing: 1px; margin: 0 0 6px 0;\"\u003e9' DX Whip\u003c\/p\u003e\n            \u003cp style=\"font-size: 14px; color: #555; line-height: 1.6; margin: 0 0 8px 0;\"\u003eAdds 9 feet of aperture. Stronger performance on the key DX bands as the geometry approaches its peak. Lightweight, stealthy.\u003c\/p\u003e\n            \u003ca href=\"\/ja\/products\/9-foot-whip-for-greyline-antennas\" style=\"font-size: 12px; font-weight: bold; color: #b8960c; text-decoration: none; text-transform: uppercase; letter-spacing: 1px;\"\u003eView Whip →\u003c\/a\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"background: #fff; border: 1px solid #DDD8CC; border-top: 3px solid #B8960C; padding: 18px;\"\u003e\n            \u003cp style=\"font-size: 12px; font-weight: bold; color: #b8960c; text-transform: uppercase; letter-spacing: 1px; margin: 0 0 6px 0;\"\u003eLDG RT-100 Bundle\u003c\/p\u003e\n            \u003cp style=\"font-size: 14px; color: #555; line-height: 1.6; margin: 0 0 8px 0;\"\u003e125W weatherproof remote tuner at the feedpoint. DC over coax. One-button tuning 160–6M. Bundle and save.\u003c\/p\u003e\n            \u003ca href=\"\/ja\/collections\/bundle-dx-flagpole-antenna-remote-antenna-tuner\" style=\"font-size: 12px; font-weight: bold; color: #b8960c; text-decoration: none; text-transform: uppercase; letter-spacing: 1px;\"\u003eView Bundle →\u003c\/a\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"background: #fff; border: 1px solid #DDD8CC; border-top: 3px solid #B8960C; padding: 18px;\"\u003e\n            \u003cp style=\"font-size: 12px; font-weight: bold; color: #b8960c; text-transform: uppercase; letter-spacing: 1px; margin: 0 0 6px 0;\"\u003eWant a Flagpole?\u003c\/p\u003e\n            \u003cp style=\"font-size: 14px; color: #555; line-height: 1.6; margin: 0 0 8px 0;\"\u003eThe DXF20 delivers identical VDA performance in a premium flagpole with HOA documents included.\u003c\/p\u003e\n            \u003ca href=\"\/ja\/collections\/hoa-flagpole-antenna\/products\/20-foot-flagpole-antenna\" style=\"font-size: 12px; font-weight: bold; color: #b8960c; text-decoration: none; text-transform: uppercase; letter-spacing: 1px;\"\u003eSee the DXF20 →\u003c\/a\u003e\n        \u003c\/div\u003e\n    \u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"max-width: 860px; margin: 0 0 28px 0; padding: 14px 18px; border: 1px solid #DDD8CC; background: #fff;\"\u003e\n    \u003cp style=\"font-size: 12px; font-weight: bold; color: #b8960c; text-transform: uppercase; letter-spacing: 1px; margin: 0 0 6px 0;\"\u003eFeed System Note\u003c\/p\u003e\n    \u003cp style=\"font-size: 13px; color: #555; margin: 0; line-height: 1.6;\"\u003e\n        The DXV is a balanced VDA — tuner and RF choke must maintain a floating balanced feed. See the \n        \u003ca href=\"\/ja\/blogs\/news\/correctly-configuring-the-flagpole-tuner-and-balun-feed-system\" style=\"color: #b8960c; text-decoration: none;\"\u003eTuner \u0026amp; Balun Configuration Guide →\u003c\/a\u003e\n    \u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"max-width: 860px; margin: 0 0 28px 0;\"\u003e\n    \u003cp style=\"font-size: 11px; text-transform: uppercase; letter-spacing: 2.5px; color: #b8960c; font-weight: bold; margin: 0 0 8px 0;\"\u003eSpecs \u0026amp; Shipping\u003c\/p\u003e\n    \u003ctable style=\"width: 100%; border-collapse: collapse; font-size: 14px;\"\u003e\n        \u003ctbody\u003e\n            \u003ctr style=\"background: #1a1a1a; color: #fff;\"\u003e\n                \u003cth style=\"padding: 10px 14px; text-align: left;\"\u003eSpec\u003c\/th\u003e\n                \u003cth style=\"padding: 10px 14px; text-align: left;\"\u003eDetail\u003c\/th\u003e\n            \u003c\/tr\u003e\n            \u003ctr style=\"background: #f9f8f6;\"\u003e\n                \u003ctd style=\"padding: 10px 14px; color: #555;\"\u003eHeight\u003c\/td\u003e\n                \u003ctd style=\"padding: 10px 14px; font-weight: bold;\"\u003e20 feet\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr\u003e\n                \u003ctd style=\"padding: 10px 14px; color: #555;\"\u003eBand Coverage\u003c\/td\u003e\n                \u003ctd style=\"padding: 10px 14px; font-weight: bold;\"\u003e160–6M (all HF + 6M)\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr style=\"background: #f9f8f6;\"\u003e\n                \u003ctd style=\"padding: 10px 14px; color: #555;\"\u003eDesign\u003c\/td\u003e\n                \u003ctd style=\"padding: 10px 14px; font-weight: bold;\"\u003eVDA — Vertical Dipole Antenna, OCF\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr\u003e\n                \u003ctd style=\"padding: 10px 14px; color: #555;\"\u003ePower Handling\u003c\/td\u003e\n                \u003ctd style=\"padding: 10px 14px; font-weight: bold;\"\u003eLegal limit — constrained only by ATU rating\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr style=\"background: #f9f8f6;\"\u003e\n                \u003ctd style=\"padding: 10px 14px; color: #555;\"\u003eRadials Required\u003c\/td\u003e\n                \u003ctd style=\"padding: 10px 14px; font-weight: bold;\"\u003eNone\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr\u003e\n                \u003ctd style=\"padding: 10px 14px; color: #555;\"\u003eMaterial\u003c\/td\u003e\n                \u003ctd style=\"padding: 10px 14px; font-weight: bold;\"\u003e6061-T6 Aircraft-Grade Aluminum + Fiberglass\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr style=\"background: #f9f8f6;\"\u003e\n                \u003ctd style=\"padding: 10px 14px; color: #555;\"\u003eWind Rating\u003c\/td\u003e\n                \u003ctd style=\"padding: 10px 14px; font-weight: bold;\"\u003e105 MPH — ASCE 7-10\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr\u003e\n                \u003ctd style=\"padding: 10px 14px; color: #555;\"\u003eShipping\u003c\/td\u003e\n                \u003ctd style=\"padding: 10px 14px; font-weight: bold;\"\u003eFree — USA. International rates at checkout.\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr style=\"background: #f9f8f6;\"\u003e\n                \u003ctd style=\"padding: 10px 14px; color: #555;\"\u003eMade In\u003c\/td\u003e\n                \u003ctd style=\"padding: 10px 14px; font-weight: bold;\"\u003eSun Valley, Idaho — USA\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr\u003e\n                \u003ctd style=\"padding: 10px 14px; color: #555;\"\u003eGuarantee\u003c\/td\u003e\n                \u003ctd style=\"padding: 10px 14px; font-weight: bold;\"\u003e7-Year Performance Guarantee\u003c\/td\u003e\n            \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n    \u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background:#f9f8f6; border:1px solid #e0dbd0; padding:13px 18px; margin:0 0 14px;\"\u003e\n    \u003cp style=\"font-size:13px; color:#555; line-height:1.65; margin:0;\"\u003e\n        \u003cstrong style=\"color:#1a1a1a;\"\u003eDXV or DXF?\u003c\/strong\u003e\n         Same VDA core. The \n        \u003ca href=\"\/ja\/products\/20-foot-flagpole-antenna\" style=\"color:#B8960C; text-decoration:none;\"\u003eDXF20\u003c\/a\u003e\n         adds flagpole hardware, flag kit, and HOA documents. DXV20 is the clean bare vertical — rooftop, deck, open yard, any surface.\n    \u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background:#ffffff; border:1px solid #e0dbd0; border-left:4px solid #B8960C; padding:18px 22px; margin:0 0 14px;\"\u003e\n    \u003cp style=\"font-size:11px; font-weight:700; color:#B8960C; text-transform:uppercase; letter-spacing:1.5px; margin:0 0 10px;\"\u003eConstruction — 6061-T6 Aircraft Aluminum\u003c\/p\u003e\n    \u003cp style=\"font-size:14px; color:#444; line-height:1.75; margin:0 0 10px;\"\u003e\n        \u003cstrong style=\"color:#1a1a1a;\"\u003eOutside:\u003c\/strong\u003e\n         2\" OD, full length — uniform profile top to bottom. Clean. Sleek. Invisible as an antenna. \n        \u003cstrong style=\"color:#1a1a1a;\"\u003eInside:\u003c\/strong\u003e\n         wall graduates where the physics demands it — \n        \u003cstrong style=\"color:#1a1a1a;\"\u003e0.125\" lower 30%\u003c\/strong\u003e\n         where base bending stress peaks, \n        \u003cstrong style=\"color:#1a1a1a;\"\u003e0.065\" upper 70%\u003c\/strong\u003e\n         where reducing mass at height lowers dynamic wind loads. Zero plastic. All-metal. McMaster-Carr hardware throughout.\n    \u003c\/p\u003e\n    \u003cp style=\"font-size:14px; color:#444; line-height:1.75; margin:0 0 10px;\"\u003e\n        At 20 feet, the Greyline VDA presents \n        \u003cstrong style=\"color:#1a1a1a;\"\u003e3.33 square feet\u003c\/strong\u003e\n         of wind surface. The nearest competing flagpole antenna at this height uses a significantly larger outer diameter — never published, inferred from their own base insulator dimensions — presenting roughly double the projected area. Wind force scales with projected area linearly and with velocity squared. At 20 feet, a wider pole also concentrates more mass at height, increasing dynamic fatigue stress on every oscillation cycle. This is why OD matters, and why the fact that competitors don't publish it is worth noting.\n    \u003c\/p\u003e\n    \u003cp style=\"font-size:14px; color:#444; line-height:1.75; margin:0;\"\u003e\n        Every Greyline wind rating is derived from ASCE 7-10 structural engineering values — actual geometry, actual math, published methodology. \n        \u003cstrong style=\"color:#1a1a1a;\"\u003eA wind rating without a cited standard is a guess dressed as a spec.\u003c\/strong\u003e\n         Ask any competitor which standard they used. If they can't cite one, you have your answer.\n    \u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background:#1a1a1a; border:1px solid rgba(184,150,12,0.28); border-top:4px solid #B8960C; padding:24px 22px; margin:0 0 32px;\"\u003e\n    \u003cp style=\"display:inline-block; background:#B8960C; color:#000000; font-family:'Courier New',monospace; font-size:10px; font-weight:700; letter-spacing:3px; text-transform:uppercase; padding:4px 12px; margin:0 0 14px;\"\u003eLimited Edition · Artisan Production Run\u003c\/p\u003e\n    \u003cp style=\"font-size:17px; font-weight:700; color:#ffffff; line-height:1.35; margin:0 0 10px;\"\u003eThis unit was built by hand — one at a time — by someone who knows every inch of it.\u003c\/p\u003e\n    \u003cp style=\"font-size:14px; color:#e8e8e8; line-height:1.75; margin:0 0 10px;\"\u003e\n        Same 6061-T6 aircraft aluminum. Same ASCE 7-10 wind ratings. Same VDA geometry. Same 7-year guarantee. \n        \u003cstrong style=\"color:#ffffff;\"\u003eThreaded transition sections machined directly into the metal\u003c\/strong\u003e\n         — self-aligning, no through-bolting, less total weight.\n    \u003c\/p\u003e\n    \u003cp style=\"font-size:14px; color:#e8e8e8; line-height:1.75; margin:0;\"\u003e\n        Manufacturing expanding. Things coming this year. \n        \u003cstrong style=\"color:#ffffff;\"\u003eWatch this space.\u003c\/strong\u003e\n    \u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"max-width: 860px; margin: 0 0 28px 0;\"\u003e\n    \u003cp style=\"font-size: 11px; text-transform: uppercase; letter-spacing: 2.5px; color: #b8960c; font-weight: bold; margin: 0 0 8px 0;\"\u003eCommon Questions\u003c\/p\u003e\n    \u003ch3 style=\"font-size: 19px; font-weight: bold; color: #1a1a1a; margin: 0 0 16px 0;\"\u003eBefore You Order — Answered.\u003c\/h3\u003e\n    \u003cdiv class=\"gp-faq\"\u003e\n        \u003cdetails\u003e\n            \u003csummary\u003eWhat's the current lead time and availability?\u003c\/summary\u003e\n            \u003cdiv class=\"fb\"\u003e\n                \u003cp\u003e\n                    Each antenna is hand-built to order during our current artisan production run — typical lead time runs a few weeks, and we expect to return to ship-from-stock as the run completes. Current lead time is always posted on our \n                    \u003ca href=\"\/ja\/pages\/order-status-updates-for-greyline-performance\"\u003eOrder Status page →\u003c\/a\u003e\n                     Call 435-200-4902 for a specific ship date.\n                \u003c\/p\u003e\n            \u003c\/div\u003e\n        \u003c\/details\u003e\n        \u003cdetails\u003e\n            \u003csummary\u003eHow long does shipping take once it leaves Sun Valley?\u003c\/summary\u003e\n            \u003cdiv class=\"fb\"\u003e\n                \u003cp\u003eUSA shipping is free. Ground transit runs 2–5 business days from Sun Valley, Idaho. Tracking sent at shipment. International rates calculated at checkout.\u003c\/p\u003e\n            \u003c\/div\u003e\n        \u003c\/details\u003e\n        \u003cdetails\u003e\n            \u003csummary\u003eWhat's included — do I need to source anything separately?\u003c\/summary\u003e\n            \u003cdiv class=\"fb\"\u003e\n                \u003cp\u003eEverything to assemble and mount is in the box. You supply coax and an ATU. That's it.\u003c\/p\u003e\n                \u003cp class=\"fc\"\u003e✓ VDA Radiator (your chosen height)\u003c\/p\u003e\n                \u003cp class=\"fc\"\u003e✓ RF Choke \u0026amp; Precision Feedline Hardware\u003c\/p\u003e\n                \u003cp class=\"fc\"\u003e✓ Ground Sleeve Kit — in-ground, tower, roof, deck, dock compatible\u003c\/p\u003e\n                \u003cp class=\"fc\"\u003e✓ Assembly Manual \u0026amp; Tuning Guide\u003c\/p\u003e\n                \u003cp class=\"fc\"\u003e✓ 7-Year Performance Guarantee\u003c\/p\u003e\n            \u003c\/div\u003e\n        \u003c\/details\u003e\n        \u003cdetails\u003e\n            \u003csummary\u003eDo I need an ATU — will my radio's internal tuner work?\u003c\/summary\u003e\n            \u003cdiv class=\"fb\"\u003e\n                \u003cp\u003eYes, an external ATU is required. The VDA presents variable impedance across its operating range — that's how it covers 160–6M from a single feedpoint with no traps and no radials. Most internal tuners won't handle the full impedance range on every band.\u003c\/p\u003e\n                \u003cp\u003e\n                    An external ATU lives in one of two places, and both are right depending on your run. For a short feedline run, a desktop ATU at the radio is the simpler path — it stays warm and dry indoors and you can hear it tune. For a longer run, a weatherproof remote ATU at the antenna base keeps the match close to the feedpoint; the \n                    \u003ca href=\"\/ja\/products\/greyline-antenna-tuner-ldg-rt100-atu\"\u003eLDG RT-100\u003c\/a\u003e\n                     is a low-cost 125W fit for that job. Either way, note that all ATUs carry a reduced power rating for digital modes (FT8, Winlink, JS8Call) due to 100% duty cycle heat loading — check your tuner's digital rating before running full power on those modes. Running high power? The antenna handles the full legal limit on every band — the tuner is the only ceiling, and higher-power ATU options are available. \n                    \u003ca href=\"\/ja\/collections\/bundle-dx-flagpole-antenna-remote-antenna-tuner\"\u003eAntenna + ATU bundles →\u003c\/a\u003e\n                \u003c\/p\u003e\n            \u003c\/div\u003e\n        \u003c\/details\u003e\n        \u003cdetails\u003e\n            \u003csummary\u003eIs the ATU bundle the best value?\u003c\/summary\u003e\n            \u003cdiv class=\"fb\"\u003e\n                \u003cp\u003e\n                    Yes. Every DXV is available bundled with the LDG RT-100 at a discount. Free shipping USA. \n                    \u003ca href=\"\/ja\/collections\/bundle-dx-flagpole-antenna-remote-antenna-tuner\"\u003eShop all bundles →\u003c\/a\u003e\n                \u003c\/p\u003e\n            \u003c\/div\u003e\n        \u003c\/details\u003e\n        \u003cdetails\u003e\n            \u003csummary\u003eHow difficult is installation? How long does it take?\u003c\/summary\u003e\n            \u003cdiv class=\"fb\"\u003e\n                \u003cp\u003eMost operators are on the air in under an hour. Dig a post hole, build the antenna sections (15–30 min), drop it in, run coax, connect the ATU. All stainless hardware comes pre-fastened — no loose hardware to lose in the grass.\u003c\/p\u003e\n                \u003cp\u003e\n                    Assembly documents at \n                    \u003ca href=\"\/ja\/pages\/assembly-documents\"\u003eSetup \u0026amp; Manuals →\u003c\/a\u003e\n                     Questions during install? Call 435-200-4902.\n                \u003c\/p\u003e\n            \u003c\/div\u003e\n        \u003c\/details\u003e\n        \u003cdetails\u003e\n            \u003csummary\u003eWhat does the 7-Year Guarantee cover?\u003c\/summary\u003e\n            \u003cdiv class=\"fb\"\u003e\n                \u003cp\u003e\n                    Seven years of performance coverage. If it fails under normal operating conditions, we make it right. No questions asked. A customer's antenna fell in a severe ice storm — we sent a replacement immediately. Full terms at \n                    \u003ca href=\"\/ja\/policies\/refund-policy\"\u003e7-Year Warranty Policy →\u003c\/a\u003e\n                \u003c\/p\u003e\n            \u003c\/div\u003e\n        \u003c\/details\u003e\n    \u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- AUTHORITY ANCHOR BLOCK --\u003e\n\u003cdiv style=\"margin: 32px 0; padding: 24px 28px; background: #fafaf7; border-left: 3px solid #B8960C; font-family: Georgia, 'Times New Roman', serif; font-size: 15px; line-height: 1.7; color: #2a2a2a;\"\u003e\n    \u003cdiv style=\"color: #B8960C; font-size: 11px; letter-spacing: 2.5px; text-transform: uppercase; margin-bottom: 10px;\"\u003eWhy this antenna works\u003c\/div\u003e\n    \u003cp style=\"margin: 0 0 12px 0;\"\u003eEvery Greyline design decision traces back to named, published antenna physics — Zavrel W7SX, Kraus W8JK, Severns N6LF on ground systems, Maxwell W2DU on transmission lines, Lewallen W7EL on modeling. Not opinions. Cited works.\u003c\/p\u003e\n    \u003cp style=\"margin: 0; font-size: 14px; color: #555;\"\u003e\n        The full shelf — Zavrel, Kraus, Severns, Maxwell, Lewallen — lives under \n        \u003cem\u003eThe Signal Lab · The Shelf We Read From\u003c\/em\u003e\n         in the menu, open to everyone.\n    \u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- \/AUTHORITY ANCHOR BLOCK --\u003e\n\u003cdiv style=\"max-width: 860px; border-top: 1px solid #DDD8CC; padding-top: 16px; margin: 0 0 8px 0;\"\u003e\n    \u003cp style=\"font-size: 13px; color: #888; font-style: italic; margin: 0;\"\u003eHam Radio is fun again! Pass it on... 73, The Greyline Performance Team · Sun Valley, Idaho · 435-200-4902\u003c\/p\u003e\n\u003c\/div\u003e\n","brand":"Greyline Performance","offers":[{"title":"Default Title","offer_id":18321123704899,"sku":"DXV20","price":1050.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0028\/2571\/5779\/products\/DX_Vertical_Antenna-20ft-min.jpg?v=1770159473"},{"product_id":"24-foot-vertical-antenna","title":"24' HF Vertical Antenna | 160-6M | No Radials | Greyline","description":"\u003c!-- DXV24 PRODUCT PAGE | Paste into Shopify Products \u003e Description \u003e HTML source view --\u003e\n\u003cdiv style=\"max-width: 860px; margin: 0 auto; padding: 0 0 8px 0;\"\u003e\n    \u003cp style=\"font-size: 11px; text-transform: uppercase; letter-spacing: 2.5px; color: #b8960c; font-weight: bold; margin: 0 0 8px 0;\"\u003eHF Vertical Dipole Antenna · 160–6M · No Radials · Made in USA\u003c\/p\u003e\n    \u003ch2 style=\"font-size: 26px; font-weight: bold; color: #1a1a1a; line-height: 1.25; margin: 0 0 14px 0;\"\u003eThe DXV24 — Bare Vertical. Serious Low-Band Aperture.\u003c\/h2\u003e\n    \u003cp style=\"font-size: 15px; color: #555; line-height: 1.65; margin: 0 0 20px 0;\"\u003eThe DXV24 works every band, 160–6M, from a single feedpoint with no radials and no ground system — that is the headline. At 24 feet the low-band aperture comes into its own, where length is what matters on 40 and 80 meters, and on the upper DX bands the modeled gain runs up to +3.5 dBi. Same VDA core as the DXF flagpole, without the flag hardware — a clean 2-inch vertical built for rooftop, open-yard, waterfront, and commercial sites where a bare pole is the right answer.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background:#1a1a1a;color:#e8e8e8;padding:18px 22px;border-left:4px solid #B8960C;margin:0 0 28px 0;max-width:860px;\"\u003e\n    \u003cp style=\"margin:0 0 6px 0;font-size:12px;font-weight:bold;color:#b8960c;text-transform:uppercase;letter-spacing:1px;\"\u003eWhy a Bare Vertical?\u003c\/p\u003e\n    \u003cp style=\"margin:0;font-size:15px;line-height:1.6;color:#e8e8e8;\"\u003eThe DXV is the same vertical dipole as our flagpole series with the flag hardware left off — no visible stubs, no loading coils, no radial wires, no flag. A clean 2-inch pole that disappears against a rooftop, a tree line, or a commercial mast. For operators who don't need the flagpole disguise, it is the most direct path to the VDA architecture.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 16px; margin: 0 0 28px 0; max-width: 860px;\"\u003e\n    \u003cdiv style=\"background: #fff; border: 1px solid #DDD8CC; border-top: 3px solid #B8960C; padding: 18px;\"\u003e\n        \u003cp style=\"font-size: 12px; font-weight: bold; color: #b8960c; text-transform: uppercase; letter-spacing: 1px; margin: 0 0 6px 0;\"\u003eBand Coverage\u003c\/p\u003e\n        \u003cp style=\"font-size: 20px; font-weight: bold; color: #1a1a1a; margin: 0 0 4px 0;\"\u003e160–6M\u003c\/p\u003e\n        \u003cp style=\"font-size: 13px; color: #555; margin: 0;\"\u003eAll HF bands. One antenna.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cdiv style=\"background: #fff; border: 1px solid #DDD8CC; border-top: 3px solid #B8960C; padding: 18px;\"\u003e\n        \u003cp style=\"font-size: 12px; font-weight: bold; color: #b8960c; text-transform: uppercase; letter-spacing: 1px; margin: 0 0 6px 0;\"\u003eGround System\u003c\/p\u003e\n        \u003cp style=\"font-size: 20px; font-weight: bold; color: #1a1a1a; margin: 0 0 4px 0;\"\u003eNo Radials\u003c\/p\u003e\n        \u003cp style=\"font-size: 13px; color: #555; margin: 0;\"\u003eOne feedpoint. Any surface.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cdiv style=\"background: #fff; border: 1px solid #DDD8CC; border-top: 3px solid #B8960C; padding: 18px;\"\u003e\n        \u003cp style=\"font-size: 12px; font-weight: bold; color: #b8960c; text-transform: uppercase; letter-spacing: 1px; margin: 0 0 6px 0;\"\u003eGuarantee\u003c\/p\u003e\n        \u003cp style=\"font-size: 20px; font-weight: bold; color: #1a1a1a; margin: 0 0 4px 0;\"\u003e7 Years\u003c\/p\u003e\n        \u003cp style=\"font-size: 13px; color: #555; margin: 0;\"\u003eFree shipping USA. Made in Sun Valley, Idaho.\u003c\/p\u003e\n    \u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"max-width:860px; margin:0 0 14px 0;\"\u003e\n    \u003cp style=\"font-size:13px; color:#888; line-height:1.6; margin:0; font-style:italic;\"\u003eThe field reports below come from operators running the 24' DXF flagpole. The DXV24 shares the identical VDA core and 24-foot geometry — the same antenna without the flag hardware — so the on-air results carry across directly.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background:#1a1a1a;padding:18px 22px;border-left:4px solid #B8960C;margin:0 0 28px 0;max-width:860px;\"\u003e\n    \u003cp style=\"margin:0 0 6px 0;font-size:12px;font-weight:bold;color:#B8960C;text-transform:uppercase;letter-spacing:1px;\"\u003eField Report — HOA Golf Course Community\u003c\/p\u003e\n    \u003cp style=\"margin:0 0 10px 0;font-size:15px;line-height:1.6;color:#e8e8e8;\"\u003eARRL CW 160M Contest: 61 QSOs, 23 sections, 750–1,000 miles on 1.8 MHz. Runs contests at legal limit on 40–10M. “Going from the 20 ft to the 24 ft antenna made a very big difference.”\u003c\/p\u003e\n    \u003cp style=\"margin:0;font-size:12px;color:#aaa;\"\u003e— Bill · K3WA · PVRC President · 24' DXF · Verified Owner\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background:#1a1a1a;padding:18px 22px;border-left:4px solid #B8960C;margin:0 0 28px 0;max-width:860px;\"\u003e\n    \u003cp style=\"margin:0 0 6px 0;font-size:12px;font-weight:bold;color:#B8960C;text-transform:uppercase;letter-spacing:1px;\"\u003eIndependent Assessment — Defense Antenna Executive\u003c\/p\u003e\n    \u003cp style=\"margin:0 0 10px 0;font-size:15px;line-height:1.6;color:#e8e8e8;\"\u003e\n        “I ran a defense antenna company for 7 years. I am very impressed with the look, quality, machining, and part fit. \n        \u003cstrong style=\"color:#ffffff;\"\u003eIt is a professional-grade product.\u003c\/strong\u003e\n        ” HOA approved in Colorado. Concrete foundation. FT8 DX confirmed to Hawaii, South America, Europe, and Africa.\n    \u003c\/p\u003e\n    \u003cp style=\"margin:0;font-size:12px;color:#aaa;\"\u003e— Rob Freedman · WC0R · Retired Defense Antenna Executive · Amateur Extra · Colorado HOA\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background:#1A1A1A; border-left:4px solid #B8960C; padding:28px 32px; margin:32px 0; border-radius:4px;\"\u003e\n    \u003cp style=\"font-size:11px; text-transform:uppercase; letter-spacing:2.5px; color:#B8960C; font-weight:700; margin:0 0 14px 0; font-family:'Courier New', monospace;\"\u003eField Report · Long-Term Reliability\u003c\/p\u003e\n    \u003ch3 style=\"font-size:22px; font-weight:700; color:#ffffff; margin:0 0 16px 0; line-height:1.3;\"\u003eGreg Newman, K7GAN — 24' DX Flagpole, 3.5 Years and Several Thousand QSOs\u003c\/h3\u003e\n    \u003cp style=\"font-size:14px; color:#B8960C; line-height:1.5; margin:0 0 12px 0; font-style:italic;\"\u003eGreg runs the 24' DXF flagpole — the same VDA core and 24-foot geometry as the DXV24 on this page, with the flag hardware added.\u003c\/p\u003e\n    \u003cp style=\"font-size:16px; color:#e8e8e8; line-height:1.65; margin:0 0 16px 0;\"\u003eGreg installed his 24' Greyline DX Flagpole in a covenant-restricted area three and a half years ago. He's logged several thousand QSOs from it. His longest contact: 12,500 miles on FT8.\u003c\/p\u003e\n    \u003cp style=\"font-size:16px; color:#e8e8e8; line-height:1.65; margin:0 0 16px 0; font-style:italic;\"\u003e“Super quality material, was easy to install and performed better than expected. The DX Flagpole antennas are well worth the investment as they work extremely well, made of highest quality materials that will last for a very long time.”\u003c\/p\u003e\n    \u003cp style=\"font-size:14px; color:#e8e8e8; line-height:1.65; margin:0;\"\u003e\n        \u003cstrong style=\"color:#ffffff;\"\u003eWhy this matters:\u003c\/strong\u003e\n         Three and a half years is enough time for materials to fail, joints to corrode, and design weaknesses to surface. The Greyline 24' DX Flagpole at K7GAN's QTH hasn't done any of those. 6061-T6 aluminum, threaded transitions, and clean RF design carry the antenna through years, not just install day.\n    \u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background:#fafaf7; border-left:4px solid #B8960C; padding:24px 28px; margin:24px 0; font-family:Georgia, 'Times New Roman', serif;\"\u003e\n    \u003cp style=\"font-size:11px; text-transform:uppercase; letter-spacing:2.5px; color:#B8960C; font-weight:700; font-family:'Courier New', monospace; margin:0 0 10px 0;\"\u003eAperture Plus Wire\u003c\/p\u003e\n    \u003ch3 style=\"font-size:20px; font-weight:700; color:#1a1a1a; margin:0 0 10px 0;\"\u003eThe 24' Antenna Earns Its Aperture. Don't Lose It In The Coax.\u003c\/h3\u003e\n    \u003cp style=\"font-size:15px; color:#555; line-height:1.65; margin:0 0 14px 0;\"\u003eA 24-foot DXV delivers meaningful low-band aperture. The wrong feedline gives that gain right back as heat. Use the Feedline Loss Calculator to see how much of your power actually reaches the radiator on each band — especially 10M and 12M, where loss compounds fastest.\u003c\/p\u003e\n    \u003cp style=\"margin:0;\"\u003e\n        \u003ca href=\"\/ja\/pages\/feedline-loss-calculator\" style=\"display:inline-block; background:#B8960C; color:#fff; padding:11px 22px; font-size:12px; font-weight:700; text-transform:uppercase; letter-spacing:1px; text-decoration:none;border-bottom:none;\"\u003eOpen the Calculator →\u003c\/a\u003e\n    \u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"max-width: 860px; margin: 0 0 28px 0;\"\u003e\n    \u003cp style=\"font-size: 11px; text-transform: uppercase; letter-spacing: 2.5px; color: #b8960c; font-weight: bold; margin: 0 0 8px 0;\"\u003eThe Physics\u003c\/p\u003e\n    \u003ch3 style=\"font-size: 19px; font-weight: bold; color: #1a1a1a; margin: 0 0 10px 0;\"\u003eWhy No Radials — and Why It Works\u003c\/h3\u003e\n    \u003cp style=\"font-size: 15px; color: #555; line-height: 1.65; margin: 0 0 12px 0;\"\u003eTraditional quarter-wave verticals feed at the current maximum at the base — pushing maximum I²R loss directly through soil. Every ohm of ground resistance sits in series with your radiation resistance, stealing signal before it leaves your yard.\u003c\/p\u003e\n    \u003cp style=\"font-size: 15px; color: #555; line-height: 1.65; margin: 0 0 12px 0;\"\u003eThe Greyline VDA is a vertical dipole. It works every band, 160–6M, from a single feedpoint with no radials. Return current flows through the lower element, not through a buried radial field, significantly reducing ground coupling and removing dependency on soil conductivity. On top of full coverage, the geometry approaches 5\/8λ on the upper bands for strong low-angle DX radiation, and at 24 feet the added aperture lifts the low bands where it counts.\u003c\/p\u003e\n    \u003cp style=\"font-size: 13px; color: #888; margin: 0 0 16px 0;\"\u003eThe physics behind the no-radial vertical dipole is established, published work — the full reference shelf is cited below, and a deeper VDA explainer lives in the Signal Lab for further study.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #f9f8f6; border: 1px solid #DDD8CC; border-left: 4px solid #B8960C; padding: 14px 18px; max-width: 860px; margin: 0 0 28px 0;\"\u003e\n    \u003cp style=\"font-size: 12px; font-weight: bold; color: #b8960c; text-transform: uppercase; letter-spacing: 1px; margin: 0 0 6px 0;\"\u003eGain, Honestly\u003c\/p\u003e\n    \u003cp style=\"font-size: 14px; color: #555; line-height: 1.65; margin: 0;\"\u003e\n        The 24' runs up to +3.5 dBi on the upper DX bands (modeled), with full per-band figures and their reference stated on one sourced page so the numbers stay consistent everywhere. \n        \u003ca href=\"\/ja\/pages\/antenna-aperture-and-gain\" style=\"color: #b8960c; text-decoration: none;\"\u003eAperture \u0026amp; Gain — the modeled figures →\u003c\/a\u003e\n    \u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #f9f8f6; border: 1px solid #DDD8CC; border-left: 4px solid #B8960C; padding: 14px 18px; max-width: 860px; margin: 0 0 28px 0;\"\u003e\n    \u003cp style=\"font-size: 12px; font-weight: bold; color: #b8960c; text-transform: uppercase; letter-spacing: 1px; margin: 0 0 6px 0;\"\u003eBefore You Install — Run a Noise Audit\u003c\/p\u003e\n    \u003cp style=\"font-size: 14px; color: #555; line-height: 1.65; margin: 0 0 8px 0;\"\u003eThe VDA's 2-inch pole footprint is the smallest ground signature of any full-HF-coverage antenna. A traditional radial field extends hundreds of feet at 160 meters — running toward every noise source on the property. The VDA goes where you choose. Grab a battery-powered AM radio, tune off any broadcast station, walk your property, and find the quietest spot. That's where the pole goes.\u003c\/p\u003e\n    \u003ca href=\"\/ja\/pages\/assembly-documents\" style=\"font-size: 12px; font-weight: bold; color: #b8960c; text-decoration: none; text-transform: uppercase; letter-spacing: 1px;\"\u003eFull Installation Guide →\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"max-width: 860px; margin: 0 0 28px 0;\"\u003e\n    \u003cp style=\"font-size: 11px; text-transform: uppercase; letter-spacing: 2.5px; color: #b8960c; font-weight: bold; margin: 0 0 8px 0;\"\u003eIn the Box\u003c\/p\u003e\n    \u003ch3 style=\"font-size: 19px; font-weight: bold; color: #1a1a1a; margin: 0 0 14px 0;\"\u003eEverything You Need. Nothing You Don't.\u003c\/h3\u003e\n    \u003cdiv style=\"display: grid; grid-template-columns: 1fr 1fr; gap: 16px;\"\u003e\n        \u003cdiv style=\"background: #fff; border: 1px solid #DDD8CC; border-top: 3px solid #B8960C; padding: 18px;\"\u003e\n            \u003cp style=\"font-size: 12px; font-weight: bold; color: #b8960c; text-transform: uppercase; letter-spacing: 1px; margin: 0 0 10px 0;\"\u003eAntenna System\u003c\/p\u003e\n            \u003cul style=\"margin: 0; padding: 0 0 0 16px; color: #555; font-size: 14px; line-height: 1.8;\"\u003e\n                \u003cli\u003e24' DXV Vertical VDA Radiator\u003c\/li\u003e\n                \u003cli\u003eRF Choke \u0026amp; Precision Feedline Hardware\u003c\/li\u003e\n                \u003cli\u003eGround Sleeve Kit\u003c\/li\u003e\n                \u003cli\u003eAssembly Manual \u0026amp; Tuning Guide\u003c\/li\u003e\n            \u003c\/ul\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"background: #fff; border: 1px solid #DDD8CC; border-top: 3px solid #B8960C; padding: 18px;\"\u003e\n            \u003cp style=\"font-size: 12px; font-weight: bold; color: #b8960c; text-transform: uppercase; letter-spacing: 1px; margin: 0 0 10px 0;\"\u003eMounts Anywhere\u003c\/p\u003e\n            \u003cul style=\"margin: 0; padding: 0 0 0 16px; color: #555; font-size: 14px; line-height: 1.8;\"\u003e\n                \u003cli\u003eIn-ground, tower, roof, deck, or dock\u003c\/li\u003e\n                \u003cli\u003e2-inch footprint, no radial field\u003c\/li\u003e\n                \u003cli\u003eStainless hardware, pre-fastened\u003c\/li\u003e\n                \u003cli\u003e7-Year Performance Guarantee\u003c\/li\u003e\n            \u003c\/ul\u003e\n        \u003c\/div\u003e\n    \u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"max-width: 860px; margin: 0 0 28px 0;\"\u003e\n    \u003cp style=\"font-size: 11px; text-transform: uppercase; letter-spacing: 2.5px; color: #b8960c; font-weight: bold; margin: 0 0 8px 0;\"\u003eStructural Engineering\u003c\/p\u003e\n    \u003ch3 style=\"font-size: 19px; font-weight: bold; color: #1a1a1a; margin: 0 0 10px 0;\"\u003eBuilt for Real Weather\u003c\/h3\u003e\n    \u003cp style=\"font-size: 15px; color: #555; line-height: 1.65; margin: 0 0 14px 0;\"\u003eEvery DXV is engineered to ASCE 7-10 structural standards. With no flag, the DXV carries no flag drag — so it holds a single rating equal to the flag-down figure of the matching flagpole, the strongest case for that geometry. The ratings below are real values for the actual pole. When you compare antennas, the question worth asking is which standard produced the number. A figure you can stand behind in a storm is worth more than a bigger one you can't.\u003c\/p\u003e\n    \u003ctable style=\"width: 100%; border-collapse: collapse; font-size: 14px; margin: 0 0 10px 0;\"\u003e\n        \u003cthead\u003e\n            \u003ctr style=\"background: #1a1a1a; color: #fff; text-align: left;\"\u003e\n                \u003cth style=\"padding: 10px 14px;\"\u003eModel\u003c\/th\u003e\n                \u003cth style=\"padding: 10px 14px;\"\u003eWind Rating\u003c\/th\u003e\n                \u003cth style=\"padding: 10px 14px;\"\u003eStandard\u003c\/th\u003e\n            \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n            \u003ctr style=\"background: #f9f8f6;\"\u003e\n                \u003ctd style=\"padding: 10px 14px; color: #888;\"\u003eDXV12\u003c\/td\u003e\n                \u003ctd style=\"padding: 10px 14px; color: #888;\"\u003e175 MPH\u003c\/td\u003e\n                \u003ctd style=\"padding: 10px 14px; color: #888;\"\u003eASCE 7-10\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr style=\"background: #fff;\"\u003e\n                \u003ctd style=\"padding: 10px 14px; color: #888;\"\u003eDXV16\u003c\/td\u003e\n                \u003ctd style=\"padding: 10px 14px; color: #888;\"\u003e132 MPH\u003c\/td\u003e\n                \u003ctd style=\"padding: 10px 14px; color: #888;\"\u003eASCE 7-10\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr style=\"background: #f9f8f6;\"\u003e\n                \u003ctd style=\"padding: 10px 14px; color: #888;\"\u003eDXV20\u003c\/td\u003e\n                \u003ctd style=\"padding: 10px 14px; color: #888;\"\u003e105 MPH\u003c\/td\u003e\n                \u003ctd style=\"padding: 10px 14px; color: #888;\"\u003eASCE 7-10\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr style=\"background: #fff;\"\u003e\n                \u003ctd style=\"padding: 10px 14px; font-weight: bold; color: #b8960c;\"\u003eDXV24\u003c\/td\u003e\n                \u003ctd style=\"padding: 10px 14px; font-weight: bold;\"\u003e82 MPH\u003c\/td\u003e\n                \u003ctd style=\"padding: 10px 14px; color: #888;\"\u003eASCE 7-10\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr style=\"background: #f9f8f6;\"\u003e\n                \u003ctd style=\"padding: 10px 14px; color: #888;\"\u003eDXV28\u003c\/td\u003e\n                \u003ctd style=\"padding: 10px 14px; color: #888;\"\u003e65 MPH\u003c\/td\u003e\n                \u003ctd style=\"padding: 10px 14px; color: #888;\"\u003eASCE 7-10\u003c\/td\u003e\n            \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n    \u003c\/table\u003e\n    \u003cp style=\"font-size: 12px; color: #888; margin: 0;\"\u003eRatings per ASCE 7-10 for the bare vertical. The end customer is responsible for a foundation suited to the site.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"max-width: 860px; margin: 0 0 28px 0;\"\u003e\n    \u003cp style=\"font-size: 11px; text-transform: uppercase; letter-spacing: 2.5px; color: #b8960c; font-weight: bold; margin: 0 0 8px 0;\"\u003eTake It Further\u003c\/p\u003e\n    \u003ch3 style=\"font-size: 19px; font-weight: bold; color: #1a1a1a; margin: 0 0 14px 0;\"\u003eUpgrades That Actually Move the Needle\u003c\/h3\u003e\n    \u003cdiv style=\"display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 16px;\"\u003e\n        \u003cdiv style=\"background: #fff; border: 1px solid #DDD8CC; border-top: 3px solid #B8960C; padding: 18px;\"\u003e\n            \u003cp style=\"font-size: 12px; font-weight: bold; color: #b8960c; text-transform: uppercase; letter-spacing: 1px; margin: 0 0 6px 0;\"\u003e9' DX Whip\u003c\/p\u003e\n            \u003cp style=\"font-size: 14px; color: #555; line-height: 1.6; margin: 0 0 8px 0;\"\u003eAdds 9 feet of aperture for stronger low-band performance. Extends the upper radiator on every band. Lightweight, stealthy.\u003c\/p\u003e\n            \u003ca href=\"\/ja\/products\/9-foot-whip-for-greyline-antennas\" style=\"font-size: 12px; font-weight: bold; color: #b8960c; text-decoration: none; text-transform: uppercase; letter-spacing: 1px;\"\u003eView Whip →\u003c\/a\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"background: #fff; border: 1px solid #DDD8CC; border-top: 3px solid #B8960C; padding: 18px;\"\u003e\n            \u003cp style=\"font-size: 12px; font-weight: bold; color: #b8960c; text-transform: uppercase; letter-spacing: 1px; margin: 0 0 6px 0;\"\u003eLDG RT-100 Bundle\u003c\/p\u003e\n            \u003cp style=\"font-size: 14px; color: #555; line-height: 1.6; margin: 0 0 8px 0;\"\u003e125W weatherproof remote tuner at the feedpoint. DC over coax. One-button tuning 160–6M. Bundle the DXV24 with the RT-100 and save.\u003c\/p\u003e\n            \u003ca href=\"\/ja\/collections\/bundle-dx-flagpole-antenna-remote-antenna-tuner\" style=\"font-size: 12px; font-weight: bold; color: #b8960c; text-decoration: none; text-transform: uppercase; letter-spacing: 1px;\"\u003eView Bundle →\u003c\/a\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"background: #fff; border: 1px solid #DDD8CC; border-top: 3px solid #B8960C; padding: 18px;\"\u003e\n            \u003cp style=\"font-size: 12px; font-weight: bold; color: #b8960c; text-transform: uppercase; letter-spacing: 1px; margin: 0 0 6px 0;\"\u003eNeed HOA Cover?\u003c\/p\u003e\n            \u003cp style=\"font-size: 14px; color: #555; line-height: 1.6; margin: 0 0 8px 0;\"\u003eThe DXF24 delivers identical VDA performance dressed as a residential flagpole — with the HOA brief and approval letter included.\u003c\/p\u003e\n            \u003ca href=\"\/ja\/collections\/hoa-flagpole-antenna\/products\/24-foot-flagpole-antenna\" style=\"font-size: 12px; font-weight: bold; color: #b8960c; text-decoration: none; text-transform: uppercase; letter-spacing: 1px;\"\u003eSee the DXF24 →\u003c\/a\u003e\n        \u003c\/div\u003e\n    \u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"max-width: 860px; margin: 0 0 28px 0;\"\u003e\n    \u003cp style=\"font-size: 11px; text-transform: uppercase; letter-spacing: 2.5px; color: #b8960c; font-weight: bold; margin: 0 0 8px 0;\"\u003eSites \u0026amp; Deployment\u003c\/p\u003e\n    \u003ch3 style=\"font-size: 19px; font-weight: bold; color: #1a1a1a; margin: 0 0 10px 0;\"\u003eBuilt for Where a Bare Pole Belongs\u003c\/h3\u003e\n    \u003cp style=\"font-size: 15px; color: #555; line-height: 1.65; margin: 0 0 14px 0;\"\u003eThe DXV goes where the flagpole disguise isn't needed — rooftops, open yards, waterfront, towers, and commercial or agency sites. A decade of field experience. Fewer than 10 storm damage reports across the line.\u003c\/p\u003e\n    \u003cdiv style=\"display: grid; grid-template-columns: 1fr 1fr; gap: 16px;\"\u003e\n        \u003cdiv style=\"background: #fff; border: 1px solid #DDD8CC; border-top: 3px solid #B8960C; padding: 16px 18px;\"\u003e\n            \u003cp style=\"font-size: 12px; font-weight: bold; color: #b8960c; text-transform: uppercase; letter-spacing: 1px; margin: 0 0 6px 0;\"\u003eRooftop, Yard \u0026amp; Tower\u003c\/p\u003e\n            \u003cp style=\"font-size: 13px; color: #555; margin: 0 0 8px 0;\"\u003e2-inch footprint, no radial field, mounts to ground sleeve, tower, roof, deck, or dock. Find the quietest spot and put it there.\u003c\/p\u003e\n            \u003ca href=\"\/ja\/pages\/assembly-documents\" style=\"font-size: 12px; font-weight: bold; color: #b8960c; text-decoration: none; text-transform: uppercase; letter-spacing: 1px;\"\u003eSetup \u0026amp; Manuals →\u003c\/a\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"background: #fff; border: 1px solid #DDD8CC; border-top: 3px solid #B8960C; padding: 16px 18px;\"\u003e\n            \u003cp style=\"font-size: 12px; font-weight: bold; color: #b8960c; text-transform: uppercase; letter-spacing: 1px; margin: 0 0 6px 0;\"\u003eBehind HOA Lines?\u003c\/p\u003e\n            \u003cp style=\"font-size: 13px; color: #555; margin: 0 0 8px 0;\"\u003eIf your site needs the flagpole disguise and approval paperwork, the DXF24 carries the same VDA core with the HOA brief included.\u003c\/p\u003e\n            \u003ca href=\"\/ja\/collections\/hoa-flagpole-antenna\/products\/24-foot-flagpole-antenna\" style=\"font-size: 12px; font-weight: bold; color: #b8960c; text-decoration: none; text-transform: uppercase; letter-spacing: 1px;\"\u003eSee the DXF24 →\u003c\/a\u003e\n        \u003c\/div\u003e\n    \u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"max-width: 860px; margin: 0 0 28px 0; padding: 14px 18px; border: 1px solid #DDD8CC; background: #fff;\"\u003e\n    \u003cp style=\"font-size: 12px; font-weight: bold; color: #b8960c; text-transform: uppercase; letter-spacing: 1px; margin: 0 0 6px 0;\"\u003eFeed System Note\u003c\/p\u003e\n    \u003cp style=\"font-size: 13px; color: #555; margin: 0; line-height: 1.6;\"\u003e\n        The DXV is a balanced VDA — tuner and RF choke must maintain a floating balanced feed. See the \n        \u003ca href=\"\/ja\/blogs\/news\/correctly-configuring-the-flagpole-tuner-and-balun-feed-system\" style=\"color: #b8960c; text-decoration: none;\"\u003eTuner \u0026amp; Balun Configuration Guide →\u003c\/a\u003e\n    \u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"max-width: 860px; margin: 0 0 28px 0;\"\u003e\n    \u003cp style=\"font-size: 11px; text-transform: uppercase; letter-spacing: 2.5px; color: #b8960c; font-weight: bold; margin: 0 0 8px 0;\"\u003eSpecs \u0026amp; Shipping\u003c\/p\u003e\n    \u003ctable style=\"width: 100%; border-collapse: collapse; font-size: 14px;\"\u003e\n        \u003ctbody\u003e\n            \u003ctr style=\"background: #1a1a1a; color: #fff;\"\u003e\n                \u003cth style=\"padding: 10px 14px; text-align: left;\"\u003eSpec\u003c\/th\u003e\n                \u003cth style=\"padding: 10px 14px; text-align: left;\"\u003eDetail\u003c\/th\u003e\n            \u003c\/tr\u003e\n            \u003ctr style=\"background: #f9f8f6;\"\u003e\n                \u003ctd style=\"padding: 10px 14px; color: #555;\"\u003eHeight\u003c\/td\u003e\n                \u003ctd style=\"padding: 10px 14px; font-weight: bold;\"\u003e24 feet\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr\u003e\n                \u003ctd style=\"padding: 10px 14px; color: #555;\"\u003eBand Coverage\u003c\/td\u003e\n                \u003ctd style=\"padding: 10px 14px; font-weight: bold;\"\u003e160–6M (all HF + 6M)\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr style=\"background: #f9f8f6;\"\u003e\n                \u003ctd style=\"padding: 10px 14px; color: #555;\"\u003eDesign\u003c\/td\u003e\n                \u003ctd style=\"padding: 10px 14px; font-weight: bold;\"\u003eVDA — Vertical Dipole Antenna, OCF\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr\u003e\n                \u003ctd style=\"padding: 10px 14px; color: #555;\"\u003eModeled Gain\u003c\/td\u003e\n                \u003ctd style=\"padding: 10px 14px; font-weight: bold;\"\u003eUp to +3.5 dBi on upper DX bands (modeled)\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr style=\"background: #f9f8f6;\"\u003e\n                \u003ctd style=\"padding: 10px 14px; color: #555;\"\u003ePower Handling\u003c\/td\u003e\n                \u003ctd style=\"padding: 10px 14px; font-weight: bold;\"\u003eLegal limit — constrained only by ATU rating\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr\u003e\n                \u003ctd style=\"padding: 10px 14px; color: #555;\"\u003eRadials Required\u003c\/td\u003e\n                \u003ctd style=\"padding: 10px 14px; font-weight: bold;\"\u003eNone\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr style=\"background: #f9f8f6;\"\u003e\n                \u003ctd style=\"padding: 10px 14px; color: #555;\"\u003eMaterial\u003c\/td\u003e\n                \u003ctd style=\"padding: 10px 14px; font-weight: bold;\"\u003e6061-T6 Aircraft-Grade Aluminum + Fiberglass\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr\u003e\n                \u003ctd style=\"padding: 10px 14px; color: #555;\"\u003eWind Rating\u003c\/td\u003e\n                \u003ctd style=\"padding: 10px 14px; font-weight: bold;\"\u003e82 MPH — ASCE 7-10\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr style=\"background: #f9f8f6;\"\u003e\n                \u003ctd style=\"padding: 10px 14px; color: #555;\"\u003eShipping\u003c\/td\u003e\n                \u003ctd style=\"padding: 10px 14px; font-weight: bold;\"\u003eFree — USA. International rates at checkout.\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr\u003e\n                \u003ctd style=\"padding: 10px 14px; color: #555;\"\u003eMade In\u003c\/td\u003e\n                \u003ctd style=\"padding: 10px 14px; font-weight: bold;\"\u003eSun Valley, Idaho — USA\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr style=\"background: #f9f8f6;\"\u003e\n                \u003ctd style=\"padding: 10px 14px; color: #555;\"\u003eGuarantee\u003c\/td\u003e\n                \u003ctd style=\"padding: 10px 14px; font-weight: bold;\"\u003e7-Year Performance Guarantee\u003c\/td\u003e\n            \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n    \u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background:#ffffff; border:1px solid #e0dbd0; border-left:4px solid #B8960C; padding:18px 22px; margin:0 0 14px;\"\u003e\n    \u003cp style=\"font-size:11px; font-weight:700; color:#B8960C; text-transform:uppercase; letter-spacing:1.5px; margin:0 0 10px;\"\u003eConstruction — 6061-T6 Aircraft Aluminum\u003c\/p\u003e\n    \u003cp style=\"font-size:14px; color:#444; line-height:1.75; margin:0 0 10px;\"\u003e\n        \u003cstrong style=\"color:#1a1a1a;\"\u003eOutside:\u003c\/strong\u003e\n         2\" OD, full length — uniform profile top to bottom. Clean. Sleek. Invisible as an antenna. \n        \u003cstrong style=\"color:#1a1a1a;\"\u003eInside:\u003c\/strong\u003e\n         wall graduates where the physics demands it — \n        \u003cstrong style=\"color:#1a1a1a;\"\u003e0.125\" lower 30%\u003c\/strong\u003e\n         where base bending stress peaks, \n        \u003cstrong style=\"color:#1a1a1a;\"\u003e0.065\" upper 70%\u003c\/strong\u003e\n         where reducing mass at height lowers dynamic wind loads. Zero plastic. All-metal. McMaster-Carr hardware throughout.\n    \u003c\/p\u003e\n    \u003cp style=\"font-size:14px; color:#444; line-height:1.75; margin:0 0 10px;\"\u003eA note on diameter, because it's widely misread: a thicker pole is not automatically a stronger one. Wind force scales with projected area — the width the wind actually sees — so doubling a pole's diameter roughly doubles the wind load it must survive, before accounting for the extra mass carried at height and the added dynamic fatigue on every gust cycle. The Greyline runs a 2-inch outer diameter precisely because a slim, engineered section sheds wind better than a fat one fights it. Narrower, run correctly, is the stronger answer.\u003c\/p\u003e\n    \u003cp style=\"font-size:14px; color:#444; line-height:1.75; margin:0;\"\u003e\n        Every Greyline wind rating is derived from ASCE 7-10 structural engineering values — actual geometry, actual math, published methodology. \n        \u003cstrong style=\"color:#1a1a1a;\"\u003eA wind rating without a cited standard is a guess dressed as a spec.\u003c\/strong\u003e\n         Ask any antenna maker which standard they used. If they can't cite one, you have your answer.\n    \u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #1a1a1a; border: 1px solid rgba(184,150,12,0.28); border-top: 4px solid #B8960C; padding: 24px 22px; margin: 0 0 32px;\"\u003e\n    \u003cp style=\"display: inline-block; background: #B8960C; color: #000000; font-family: 'Courier New',monospace; font-size: 10px; font-weight: bold; letter-spacing: 3px; text-transform: uppercase; padding: 4px 12px; margin: 0 0 14px;\"\u003eLimited Edition · Artisan Production Run\u003c\/p\u003e\n    \u003cp style=\"font-size: 17px; font-weight: bold; color: #ffffff; line-height: 1.35; margin: 0 0 10px;\"\u003eThis unit was built by hand — one at a time — by someone who knows every inch of it.\u003c\/p\u003e\n    \u003cp style=\"font-size: 14px; color: #e8e8e8; line-height: 1.75; margin: 0 0 10px;\"\u003e\n        Same 6061-T6 aircraft aluminum. Same ASCE 7-10 wind ratings. Same VDA geometry. Same 7-year guarantee. \n        \u003cstrong style=\"color: #ffffff;\"\u003eThreaded transition sections machined directly into the metal\u003c\/strong\u003e\n         — self-aligning, no through-bolting, less total weight.\n    \u003c\/p\u003e\n    \u003cp style=\"font-size: 14px; color: #e8e8e8; line-height: 1.75; margin: 0;\"\u003e\n        Manufacturing expanding. Things coming this year. \n        \u003cstrong style=\"color: #ffffff;\"\u003eWatch this space.\u003c\/strong\u003e\n    \u003c\/p\u003e\n\u003c\/div\u003e\n\u003cstyle\u003e\n.gp-faq details {\n    border: 1px solid #DDD8CC;\n    margin: 0 0 8px 0;\n}\n\n.gp-faq summary {\n    padding: 14px 18px;\n    font-size: 14px;\n    font-weight: 700;\n    color: #1a1a1a;\n    cursor: pointer;\n    list-style: none;\n    display: flex;\n    justify-content: space-between;\n    align-items: center;\n}\n\n.gp-faq summary::-webkit-details-marker {\n    display: none;\n}\n\n.gp-faq summary::after {\n    content: \"+\";\n    color: #B8960C;\n    font-size: 18px;\n    font-weight: 400;\n    flex-shrink: 0;\n    margin-left: 16px;\n}\n\n.gp-faq details[open] summary::after {\n    content: \"-\";\n}\n\n.gp-faq details[open] summary {\n    color: #B8960C;\n}\n\n.gp-faq .fb {\n    padding: 0 18px 16px 18px;\n    border-top: 1px solid #DDD8CC;\n}\n\n.gp-faq .fb p {\n    font-size: 14px;\n    color: #555;\n    line-height: 1.65;\n    margin: 12px 0 0 0;\n}\n\n.gp-faq .fb a {\n    color: #B8960C;\n    text-decoration: none;\n}\n\n.gp-faq .fc {\n    font-size: 13px;\n    color: #555;\n    margin: 4px 0 0 0;\n}\n\n.gp-faq .fh {\n    font-size: 13px;\n    color: #B8960C;\n    font-weight: 700;\n    margin: 8px 0 0 0;\n}\n\u003c\/style\u003e\n\u003cdiv style=\"max-width: 860px; margin: 0 0 28px 0;\"\u003e\n    \u003cp style=\"font-size: 11px; text-transform: uppercase; letter-spacing: 2.5px; color: #b8960c; font-weight: bold; margin: 0 0 8px 0;\"\u003eCommon Questions\u003c\/p\u003e\n    \u003ch3 style=\"font-size: 19px; font-weight: bold; color: #1a1a1a; margin: 0 0 16px 0;\"\u003eBefore You Order — Answered.\u003c\/h3\u003e\n    \u003cdiv class=\"gp-faq\"\u003e\n        \u003cdetails\u003e\n            \u003csummary\u003eWhat's the current lead time and availability?\u003c\/summary\u003e\n            \u003cdiv class=\"fb\"\u003e\n                \u003cp\u003e\n                    Each antenna is hand-built to order during our current artisan production run — typical lead time runs a few weeks, and we expect to return to ship-from-stock as the run completes. Current lead time is always posted on our \n                    \u003ca href=\"\/ja\/pages\/order-status-updates-for-greyline-performance\"\u003eOrder Status page →\u003c\/a\u003e\n                     Call 435-200-4902 for a specific ship date.\n                \u003c\/p\u003e\n            \u003c\/div\u003e\n        \u003c\/details\u003e\n        \u003cdetails\u003e\n            \u003csummary\u003eHow long does shipping take once it leaves Sun Valley?\u003c\/summary\u003e\n            \u003cdiv class=\"fb\"\u003e\n                \u003cp\u003eUSA shipping is free. Ground transit runs 2–5 business days from Sun Valley, Idaho. Tracking sent at shipment. International rates calculated at checkout.\u003c\/p\u003e\n            \u003c\/div\u003e\n        \u003c\/details\u003e\n        \u003cdetails\u003e\n            \u003csummary\u003eWhat's included — do I need to source anything separately?\u003c\/summary\u003e\n            \u003cdiv class=\"fb\"\u003e\n                \u003cp\u003eEverything to assemble and mount is in the box. You supply coax and an ATU. That's it.\u003c\/p\u003e\n                \u003cp class=\"fc\"\u003e✓ VDA Radiator (your chosen height)\u003c\/p\u003e\n                \u003cp class=\"fc\"\u003e✓ RF Choke \u0026amp; Precision Feedline Hardware\u003c\/p\u003e\n                \u003cp class=\"fc\"\u003e✓ Ground Sleeve Kit — in-ground, tower, roof, deck, dock compatible\u003c\/p\u003e\n                \u003cp class=\"fc\"\u003e✓ Assembly Manual \u0026amp; Tuning Guide\u003c\/p\u003e\n                \u003cp class=\"fc\"\u003e✓ 7-Year Performance Guarantee\u003c\/p\u003e\n                \u003cp class=\"fh\"\u003eThe DXV ships as a bare vertical. The DXF flagpole models add USA-made flag kit hardware, the HOA Architectural Brief, and the Property Integrity Letter.\u003c\/p\u003e\n            \u003c\/div\u003e\n        \u003c\/details\u003e\n        \u003cdetails\u003e\n            \u003csummary\u003eDo I need an ATU — will my radio's internal tuner work?\u003c\/summary\u003e\n            \u003cdiv class=\"fb\"\u003e\n                \u003cp\u003eYes, an external ATU is required. The VDA presents variable impedance across its operating range — that's how it covers 160–6M from a single feedpoint with no traps and no radials. Most internal tuners won't handle the full impedance range on every band.\u003c\/p\u003e\n                \u003cp\u003e\n                    An external ATU lives in one of two places, and both are right depending on your run. For a short feedline run, a desktop ATU at the radio is the simpler path — it stays warm and dry indoors and you can hear it tune. For a longer run, a weatherproof remote ATU at the antenna base keeps the match close to the feedpoint; the \n                    \u003ca href=\"\/ja\/products\/greyline-antenna-tuner-ldg-rt100-atu\"\u003eLDG RT-100\u003c\/a\u003e\n                     is a low-cost 125W fit for that job. Either way, note that all ATUs carry a reduced power rating for digital modes (FT8, Winlink, JS8Call) due to 100% duty cycle heat loading — check your tuner's digital rating before running full power on those modes. Running high power? The antenna handles the full legal limit on every band — the tuner is the only ceiling, and higher-power ATU options are available. \n                    \u003ca href=\"\/ja\/collections\/bundle-dx-flagpole-antenna-remote-antenna-tuner\"\u003eAntenna + ATU bundles →\u003c\/a\u003e\n                \u003c\/p\u003e\n            \u003c\/div\u003e\n        \u003c\/details\u003e\n        \u003cdetails\u003e\n            \u003csummary\u003eIs the ATU bundle the best value?\u003c\/summary\u003e\n            \u003cdiv class=\"fb\"\u003e\n                \u003cp\u003e\n                    Yes. Every antenna is available bundled with the LDG RT-100 at a discount versus buying separately. Free shipping USA. \n                    \u003ca href=\"\/ja\/collections\/bundle-dx-flagpole-antenna-remote-antenna-tuner\"\u003eShop all bundles →\u003c\/a\u003e\n                \u003c\/p\u003e\n            \u003c\/div\u003e\n        \u003c\/details\u003e\n        \u003cdetails\u003e\n            \u003csummary\u003eHow difficult is installation? How long does it take?\u003c\/summary\u003e\n            \u003cdiv class=\"fb\"\u003e\n                \u003cp\u003eMost operators are on the air in under an hour. Dig a post hole, build the antenna sections (15–30 min), drop it in, run coax, connect the ATU. All stainless hardware comes pre-fastened — no loose hardware to lose in the grass.\u003c\/p\u003e\n                \u003cp\u003e\n                    Assembly documents at \n                    \u003ca href=\"\/ja\/pages\/assembly-documents\"\u003eSetup \u0026amp; Manuals →\u003c\/a\u003e\n                     Questions during install? Call 435-200-4902.\n                \u003c\/p\u003e\n            \u003c\/div\u003e\n        \u003c\/details\u003e\n        \u003cdetails\u003e\n            \u003csummary\u003eWhat does the 7-Year Guarantee cover?\u003c\/summary\u003e\n            \u003cdiv class=\"fb\"\u003e\n                \u003cp\u003e\n                    Seven years of performance coverage. If it fails under normal operating conditions, we make it right. No questions asked. A customer's antenna fell in a severe ice storm — we sent a replacement immediately. Full terms at \n                    \u003ca href=\"\/ja\/policies\/refund-policy\"\u003e7-Year Warranty Policy →\u003c\/a\u003e\n                \u003c\/p\u003e\n            \u003c\/div\u003e\n        \u003c\/details\u003e\n    \u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- AUTHORITY ANCHOR BLOCK --\u003e\n\u003cdiv style=\"margin: 32px 0; padding: 24px 28px; background: #fafaf7; border-left: 3px solid #B8960C; font-family: Georgia, 'Times New Roman', serif; font-size: 15px; line-height: 1.7; color: #2a2a2a;\"\u003e\n    \u003cdiv style=\"color: #B8960C; font-size: 11px; letter-spacing: 2.5px; text-transform: uppercase; margin-bottom: 10px;\"\u003eWhy this antenna works\u003c\/div\u003e\n    \u003cp style=\"margin: 0 0 12px 0;\"\u003eEvery Greyline design decision traces back to named, published antenna physics — Zavrel W7SX, Kraus W8JK, Severns N6LF on ground systems, Maxwell W2DU on transmission lines, Lewallen W7EL on modeling. Not opinions. Cited works.\u003c\/p\u003e\n    \u003cp style=\"margin: 0; font-size: 14px; color: #555;\"\u003e\n        The full shelf — Zavrel, Kraus, Severns, Maxwell, Lewallen — lives under \n        \u003cem\u003eThe Signal Lab · The Shelf We Read From\u003c\/em\u003e\n         in the menu, open to everyone.\n    \u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- \/AUTHORITY ANCHOR BLOCK --\u003e\n\u003cdiv style=\"max-width: 860px; border-top: 1px solid #DDD8CC; padding-top: 16px; margin: 0 0 8px 0;\"\u003e\n    \u003cp style=\"font-size: 13px; color: #888; font-style: italic; margin: 0;\"\u003eHam Radio is fun again! Pass it on... 73, The Greyline Performance Team · Sun Valley, Idaho · 435-200-4902\u003c\/p\u003e\n\u003c\/div\u003e\n","brand":"Greyline Performance","offers":[{"title":"Default Title","offer_id":19420341469251,"sku":"DXV24","price":1150.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0028\/2571\/5779\/products\/DX_Vertical_Antenna-24ft-min.jpg?v=1770159494"},{"product_id":"4-extension-kit-dx-flagpole-vertical-antenna","title":"4' Vertical Extension: Increased Aperture \u0026 Low-Band Efficiency","description":"\u003ch2\u003e\u003cb\u003e4’ Extension for DX Flagpole Antenna and DX Vertical Antennas \u003c\/b\u003e\u003c\/h2\u003e\n\u003ch3\u003e\u003cspan\u003eIncludes 4' upper section and the transition section (splice) with matching stainless hardware. \u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan class=\"css-1jxf684 r-bcqeeo r-1ttztb7 r-qvutc0 r-poiln3 r-1adg3ll r-1g7jtus r-1x3r274\"\u003e\u003cspan class=\"css-1jxf684 r-bcqeeo r-1ttztb7 r-qvutc0 r-poiln3\"\u003e\u003cspan class=\"css-1jxf684 r-bcqeeo r-1ttztb7 r-qvutc0 r-poiln3 r-b88u0q r-1x3r274\"\u003e\u003cspan class=\"css-1jxf684 r-bcqeeo r-1ttztb7 r-qvutc0 r-poiln3 r-1x3r274\"\u003e\u003cb\u003eAperture Discovery:\u003c\/b\u003e\u003cspan\u003e \u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"css-1jxf684 r-bcqeeo r-1ttztb7 r-qvutc0 r-poiln3 r-1adg3ll r-1g7jtus r-1x3r274\"\u003e\u003cspan class=\"css-1jxf684 r-bcqeeo r-1ttztb7 r-qvutc0 r-poiln3\"\u003e\u003cspan class=\"css-1jxf684 r-bcqeeo r-1ttztb7 r-qvutc0 r-poiln3 r-b88u0q r-1x3r274\"\u003e\u003cspan class=\"css-1jxf684 r-bcqeeo r-1ttztb7 r-qvutc0 r-poiln3 r-1x3r274\"\u003eThis precision add-on provides the electrical length needed to boost your antenna's capture area, or aperture, maximizing \u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cspan class=\"css-1jxf684 r-bcqeeo r-1ttztb7 r-qvutc0 r-poiln3 r-1adg3ll r-1g7jtus r-1x3r274\"\u003e\u003cspan class=\"css-1jxf684 r-bcqeeo r-1ttztb7 r-qvutc0 r-poiln3\"\u003e\u003cspan class=\"css-1jxf684 r-bcqeeo r-1ttztb7 r-qvutc0 r-poiln3 r-b88u0q r-1x3r274\"\u003e\u003cspan class=\"css-1jxf684 r-bcqeeo r-1ttztb7 r-qvutc0 r-poiln3 r-1x3r274\"\u003e\u003cspan data-math=\"\\mathbf{dBi}\" class=\"math-inline\"\u003e\u003cspan class=\"katex\"\u003e\u003cspan aria-hidden=\"true\" class=\"katex-html\"\u003e\u003cspan class=\"base\"\u003e\u003cspan class=\"mord\"\u003e\u003cspan class=\"mord mathbf\"\u003edBi\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e gain and lowering the radiation angle on your favorite \u003cspan data-math=\"\\text{DX}\" class=\"math-inline\"\u003e\u003cspan class=\"katex\"\u003e\u003cspan aria-hidden=\"true\" class=\"katex-html\"\u003e\u003cspan class=\"base\"\u003e\u003cspan class=\"mord text\"\u003e\u003cspan class=\"mord\"\u003eDX\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e bands. For those who can go higher, it's the smart, simple way to find more gain from your \u003cspan data-math=\"\\text{HOA}\" class=\"math-inline\"\u003e\u003cspan class=\"katex\"\u003e\u003cspan aria-hidden=\"true\" class=\"katex-html\"\u003e\u003cspan class=\"base\"\u003e\u003cspan class=\"mord text\"\u003e\u003cspan class=\"mord\"\u003eHOA\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e or small lot.\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eYou are working DX and would enjoy a little more height. We have you covered with our Extension Kit. Go higher, from 12' to 16', 16' to 20', or 20' to 24' and beyond.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis 4' extension kit may add a little more punch and lower your angle of radiation on the horizon for that deeper DX, and just maybe more DX adventure goes into your logbook. You're welcome!\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eOne famous DX'er reports going from 20-foot to 24-foot, that it is night and day. Others, might not notice as much. Physics is a mysterious process. Enjoy the experimenting at your QTH. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis extension kit of aluminum tubing is cut, drilled, cleaned, polished, and prepared with care, for you. It will seamlessly match your existing vertical antenna by Greyline Performance. (Example: just below the top section of your flagpole or vertical)\u003c\/p\u003e\n\u003cp\u003eAs always, made of the very same Premium materials, Made in the USA, for your HOA DX Flagpole Antenna and GP HF Vertical Dipole Antenna. Another smart, rugged, and elegant ham radio antenna product.\u003cbr\u003e\u003cbr\u003eMore about Greyline Performance Antennas...\u003c\/p\u003e\n\u003ch2\u003e\u003cb\u003eThe Benefits of\u003cspan\u003e Greyline DX Antennas\u003c\/span\u003e:\u003c\/b\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan\u003e\u003cstrong\u003eHOA Approved\u003c\/strong\u003e +\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003eXYL and neighborhood approved\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eNo Radials!\u003c\/b\u003e\u003cspan\u003e needed to achieve the high performance we stand behind\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePremium-only\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ematerials: Double-dipped \u0026amp; double-walled aluminum, stainless steel parts, Made in the USA\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAll bands from 80-6M including WARC, MARS, etc. \u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eHigh-Power Standard (1500W) - McMaster Stainless Steel Hardware\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSmart Design, Rugged Materials \u0026amp; Engineering: 80-100 MPH wind rating \u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eBest in Class Verticals are 'as good or better than any legacy brands you'll find on the market today\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u0026gt;90% and better efficiency across all bands\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eVery Low Losses\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003eowing to the feed system\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eLower Angles than ground-mounted verticals without laying ground radials\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAvailable sizes 12', 16', 20', 24' and 28' foot Flagpole Antennas \u0026amp; DX Verticals\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eEasy Install: Dig post hole, drop-in, plug in, play radio\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eXYL \u0026amp; fussy neighbors approve too. Why? \u003c\/h3\u003e\n\u003ch3\u003e\u003cb\u003eCustomer Reviews:\u003c\/b\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eBill works the world from his Home in an HOA! \u003c\/span\u003e \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ci\u003e\u003cspan\u003e\"XR0ZRC ... one-called him.  Not bad for a 20’ OCD and 100 watts.\"\u003c\/span\u003e\u003c\/i\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ci\u003e\u003cspan\u003e\"This Antenna hears far better than I ever expected it to!\"\u003c\/span\u003e\u003c\/i\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ci\u003e\u003cspan\u003e\"Success running a few stations on 40 and 20 CW. I'm pleased with the results\"\u003c\/span\u003e\u003c\/i\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003ci\u003e\u003cspan\u003eSee Bill's DX Flagpole, \u003c\/span\u003e\u003c\/i\u003e\u003ca href=\"https:\/\/flagpoleantenna.com\/blogs\/news\/dx-flagpole-a-passport-to-the-short-waves-in-restricted-neighborhoods-and-hoa-communities\"\u003e\u003ci\u003e\u003cspan\u003ehere\u003c\/span\u003e\u003c\/i\u003e\u003c\/a\u003e\u003ci\u003e\u003cspan\u003e. \u003c\/span\u003e\u003c\/i\u003e \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eSteve A\/B tests his 84' wire Zepp from his HOA\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003e\"A\/B tested my stealth 84' end-fed and the DX Flagpole.\" \u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\"Lit up several USA and EU skimmers on 40\/cw with the flagpole antenna.\"\u003c\/li\u003e\n\u003cli\u003e“The EFLW also lit up skimmers but fewer in EU which gives an idea of the lower angle of radiation by the DX Flagpole.\"\u003c\/li\u003e\n\u003cli\u003e“For DX, worked the XR0, C5DL, and 9G2HO on 40\/30\/20. I'm back into the weekly CWops sprints and have success running stations on 40 and 20 CW. I'm pleased with the results thus far.\"\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cb\u003eWant to work the World\u003c\/b\u003e\u003cspan\u003e like Bill and Steve from your home too? How well does your antenna play at your QTH?\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\n\u003cb\u003eWhat customers are saying:\u003c\/b\u003e\u003cb\u003e\u003cbr\u003e\u003c\/b\u003e\n\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ci\u003e\u003cspan\u003e\"Highly Recommended for HOA and CC\u0026amp;R Restricted Ham Radio QTHs.\" \u003c\/span\u003e\u003c\/i\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ci\u003e\u003cspan\u003e\"Got Indonesia (YB) this morning on 40m SSB with 100 watts. Just over 9,000 miles!\"\u003c\/span\u003e\u003c\/i\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ci\u003e\u003cspan\u003e\"Smart, Efficiently Designed and Ruggedly Engineered Radio Antenna System!\"\u003c\/span\u003e\u003c\/i\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ci\u003e\u003cspan\u003e\"Holds its own vs. taller competitors with no radials \u0026amp; is also stealth!\"\u003c\/span\u003e\u003c\/i\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ci\u003e\u003cspan\u003e\"Equal or better performance than taller verticals requiring radials!\"\u003c\/span\u003e\u003c\/i\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ci\u003e\u003cspan\u003e\"High power (1500W+) antenna and feed system are now standard!\"\u003c\/span\u003e\u003c\/i\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cb\u003eRF Blog\u003c\/b\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/greylineperformance.com\/blogs\/news\/dx-flagpole-a-passport-to-the-short-waves-in-restricted-neighborhoods-and-hoa-communities\"\u003eDX Flagpole, a passport to the Short-waves in Restricted and HOA Communities!\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/greylineperformance.com\/blogs\/news\/nationwide-hoa-approvals-and-antenna-zoning-for-the-radio-amateur\"\u003eNationwide HOA Approvals and Antenna Zoning For the Radio Amateur\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/greylineperformance.com\/blogs\/news\/a-look-at-mounting-the-ocf-on-the-ground-level-rooftop-or-on-the-tower\"\u003eOCF Vertical Dipole Mounting Scenarios Ground, Boats, Boat Docks, Bulkhead, Roof, \u0026amp; Towers\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/greylineperformance.com\/blogs\/news\/news-role\"\u003eDX Flagpole Antenna, Customer Reviews, Pics, Audio, \u0026amp; RBN Signal Data\u003c\/a\u003e  \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cbr\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eA comparison of various Greyline Antenna heights:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0028\/2571\/5779\/files\/12-28_vs_43R_large.PNG?v=1537981899\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eAs always, when considering your grounding plans always follow the ARRL RF Guidelines. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003e\n\u003ca href=\"https:\/\/greylineperformance.com\/pages\/what-to-expect-with-your-dx-flagpole-vertical-dipole-antenna\"\u003e\u003cb\u003eOur Process and What to Expect\u003c\/b\u003e\u003cb\u003e\u003cbr\u003e\u003c\/b\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/greylineperformance.com\/pages\/backstory\"\u003e\u003cb\u003eMore DX Flagpole History\u003c\/b\u003e\u003c\/a\u003e\n\u003c\/h3\u003e\n\u003ch3\u003e\u003cb\u003e\u003cbr\u003eHam Radio is fun again!\u003c\/b\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eLet’s get you and your friends back on the air! Your family and friends will appreciate the aesthetically pleasing demeanor and you will work the world from your home or HOA QTH.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cb\u003eWe enjoy talking radio: \u003c\/b\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eWrite in or call us to discuss \u003c\/span\u003e\u003cspan\u003eany\u003c\/span\u003e\u003cspan\u003e questions you have, we’re radio ops too! \u003c\/span\u003e\u003cspan\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003cb\u003eIt’s an honor to serve you in this manner. \u003c\/b\u003e\u003cb\u003eThank you for the opportunity.\u003cbr\u003e\u003c\/b\u003e\u003cb\u003e\u003cbr\u003e73 Greyline Performance\u003c\/b\u003e\u003c\/p\u003e\n\u003c!-- AUTHORITY ANCHOR BLOCK --\u003e\n\u003cdiv style=\"margin: 32px 0; padding: 24px 28px; background: #fafaf7; border-left: 3px solid #B8960C; font-family: Georgia, 'Times New Roman', serif; font-size: 15px; line-height: 1.7; color: #2a2a2a;\"\u003e\n  \u003cdiv style=\"color: #B8960C; font-size: 11px; letter-spacing: 2.5px; text-transform: uppercase; margin-bottom: 10px;\"\u003eWhy this antenna works\u003c\/div\u003e\n  \u003cp style=\"margin: 0 0 12px 0;\"\u003eEvery Greyline design decision traces back to named, published antenna physics — Zavrel W7SX, Kraus W8JK, Severns N6LF on ground systems, Maxwell W2DU on transmission lines, Lewallen W7EL on modeling. Not opinions. Cited works.\u003c\/p\u003e\n  \u003cp style=\"margin: 0;\"\u003e\u003ca href=\"\/ja\/pages\/authority-sources\" style=\"color: #8B6F0A; text-decoration: none; border-bottom: 1px dotted #B8960C; font-weight: bold;\"\u003eRead the full shelf →\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- \/AUTHORITY ANCHOR BLOCK --\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Greyline Performance","offers":[{"title":"Default Title","offer_id":29402270695491,"sku":"4-ext","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0028\/2571\/5779\/products\/62493531-4A13-46B9-BCE4-015C749864DF_2baca246-7e94-4fa1-a9ed-41e468fd85b0.png?v=1562944753"},{"product_id":"28-hf-vertical-antenna-no-radials-ocf-multiband-vertical-dipole-160-6m","title":"28' HF Vertical Antenna | 160-6M | No Radials | Greyline Performance","description":"\u003c!-- DXF28 BUNDLE PAGE | Paste into Shopify Products \u003e Description \u003e HTML source view --\u003e\n\u003cdiv style=\"max-width: 860px; margin: 0 auto; padding: 0 0 8px 0;\"\u003e\n    \u003cp style=\"font-size: 11px; text-transform: uppercase; letter-spacing: 2.5px; color: #b8960c; font-weight: bold; margin: 0 0 8px 0;\"\u003eHOA Flagpole Antenna + Remote ATU Bundle · 160–6M · No Radials · Made in USA\u003c\/p\u003e\n    \u003ch2 style=\"font-size: 26px; font-weight: bold; color: #1a1a1a; line-height: 1.25; margin: 0 0 14px 0;\"\u003eThe DXF28 Bundle — Complete System. On the Air Fast.\u003c\/h2\u003e\n    \u003cp style=\"font-size: 15px; color: #555; line-height: 1.65; margin: 0 0 20px 0;\"\u003eThe DXF28 is Greyline's most capable flagpole antenna — the choice for operators who demand every dB the design can deliver. At 28 feet, the VDA achieves full 5\/8λ geometry on 15 meters, delivering up to 3.5 dBi of gain potential on that band. The pattern angle rises slightly on 12 and 10 meters, but real-world DX performance on those bands remains strong — going taller is worth it when height clearance allows. A property asset that raises curb appeal, flies a full-size flag, and satisfies any HOA board. This bundle pairs it with the 125W LDG RT-100 tuner — you supply coax.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background:#1a1a1a;color:#e8e8e8;padding:18px 22px;border-left:4px solid #B8960C;margin:0 0 28px 0;max-width:860px;\"\u003e\n    \u003cp style=\"margin:0 0 6px 0;font-size:12px;font-weight:bold;color:#b8960c;text-transform:uppercase;letter-spacing:1px;\"\u003eFrom the Founder\u003c\/p\u003e\n    \u003cp style=\"margin:0 0 8px 0;font-size:15px;line-height:1.6;color:#e8e8e8;\"\u003e\"I run a 32-foot at home and work Africa and Asia regularly on 10 through 30 meters. Real gain across every one of those bands — from +1 dBi on 30M up to +3.5 dBi on 17M. Go as tall as your lot allows — the multiband improvement is real.\"\u003c\/p\u003e\n    \u003cp style=\"margin:0;font-size:12px;color:#aaa;\"\u003e— Jon KL2A · Founder, Greyline Performance\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 16px; margin: 0 0 28px 0; max-width: 860px;\"\u003e\n    \u003cdiv style=\"background: #fff; border: 1px solid #DDD8CC; border-top: 3px solid #B8960C; padding: 18px;\"\u003e\n        \u003cp style=\"font-size: 12px; font-weight: bold; color: #b8960c; text-transform: uppercase; letter-spacing: 1px; margin: 0 0 6px 0;\"\u003eBand Coverage\u003c\/p\u003e\n        \u003cp style=\"font-size: 20px; font-weight: bold; color: #1a1a1a; margin: 0 0 4px 0;\"\u003e160–6M\u003c\/p\u003e\n        \u003cp style=\"font-size: 13px; color: #555; margin: 0;\"\u003eAll HF bands. One antenna. One tuner.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cdiv style=\"background: #fff; border: 1px solid #DDD8CC; border-top: 3px solid #B8960C; padding: 18px;\"\u003e\n        \u003cp style=\"font-size: 12px; font-weight: bold; color: #b8960c; text-transform: uppercase; letter-spacing: 1px; margin: 0 0 6px 0;\"\u003eWind Rating (Flag Down)\u003c\/p\u003e\n        \u003cp style=\"font-size: 20px; font-weight: bold; color: #1a1a1a; margin: 0 0 4px 0;\"\u003e65 MPH\u003c\/p\u003e\n        \u003cp style=\"font-size: 13px; color: #555; margin: 0;\"\u003eASCE 7-10 engineered. Flag-up: 55 MPH.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cdiv style=\"background: #fff; border: 1px solid #DDD8CC; border-top: 3px solid #B8960C; padding: 18px;\"\u003e\n        \u003cp style=\"font-size: 12px; font-weight: bold; color: #b8960c; text-transform: uppercase; letter-spacing: 1px; margin: 0 0 6px 0;\"\u003eGuarantee\u003c\/p\u003e\n        \u003cp style=\"font-size: 20px; font-weight: bold; color: #1a1a1a; margin: 0 0 4px 0;\"\u003e7 Years\u003c\/p\u003e\n        \u003cp style=\"font-size: 13px; color: #555; margin: 0;\"\u003eFree shipping USA. Sun Valley, Idaho.\u003c\/p\u003e\n    \u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"max-width: 860px; margin: 0 0 28px 0;\"\u003e\n    \u003cp style=\"font-size: 11px; text-transform: uppercase; letter-spacing: 2.5px; color: #b8960c; font-weight: bold; margin: 0 0 8px 0;\"\u003eWhat's in the Box\u003c\/p\u003e\n    \u003ch3 style=\"font-size: 19px; font-weight: bold; color: #1a1a1a; margin: 0 0 14px 0;\"\u003eThe Complete System.\u003c\/h3\u003e\n    \u003cdiv style=\"display: grid; grid-template-columns: 1fr 1fr; gap: 16px;\"\u003e\n        \u003cdiv style=\"background: #fff; border: 1px solid #DDD8CC; border-top: 3px solid #B8960C; padding: 18px;\"\u003e\n            \u003cp style=\"font-size: 12px; font-weight: bold; color: #b8960c; text-transform: uppercase; letter-spacing: 1px; margin: 0 0 10px 0;\"\u003eAntenna System\u003c\/p\u003e\n            \u003cul style=\"margin: 0; padding: 0 0 0 16px; color: #555; font-size: 14px; line-height: 1.8;\"\u003e\n                \u003cli\u003e28' DXF VDA Radiator\u003c\/li\u003e\n                \u003cli\u003eRF Choke \u0026amp; Precision Feedline Hardware\u003c\/li\u003e\n                \u003cli\u003eGround Sleeve Kit\u003c\/li\u003e\n                \u003cli\u003eAssembly Manual \u0026amp; Tuning Guide\u003c\/li\u003e\n                \u003cli\u003e7-Year Performance Guarantee\u003c\/li\u003e\n                \u003cli\u003eUSA-Made Flag Kit Hardware\u003c\/li\u003e\n                \u003cli\u003eHOA Architectural Brief\u003c\/li\u003e\n                \u003cli\u003eProperty Integrity Letter\u003c\/li\u003e\n            \u003c\/ul\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"background: #fff; border: 1px solid #DDD8CC; border-top: 3px solid #B8960C; padding: 18px;\"\u003e\n            \u003cp style=\"font-size: 12px; font-weight: bold; color: #b8960c; text-transform: uppercase; letter-spacing: 1px; margin: 0 0 10px 0;\"\u003eLDG RT-100 Remote ATU\u003c\/p\u003e\n            \u003cul style=\"margin: 0; padding: 0 0 0 16px; color: #555; font-size: 14px; line-height: 1.8;\"\u003e\n                \u003cli\u003e125W, 160–6M — check digital duty cycle rating\u003c\/li\u003e\n                \u003cli\u003eWeatherproof — base-mount rated\u003c\/li\u003e\n                \u003cli\u003eDC powered over coax — no extra cables\u003c\/li\u003e\n                \u003cli\u003eOne-button tuning, memory recall\u003c\/li\u003e\n                \u003cli\u003eWorks with any transceiver\u003c\/li\u003e\n            \u003c\/ul\u003e\n        \u003c\/div\u003e\n    \u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #1a1a1a; padding: 18px 22px; border-left: 4px solid #B8960C; margin: 0 0 28px 0; max-width: 860px;\"\u003e\n    \u003cp style=\"margin: 0 0 6px 0; font-size: 12px; font-weight: bold; color: #b8960c; text-transform: uppercase; letter-spacing: 1px;\"\u003eField Report — Virginia\u003c\/p\u003e\n    \u003cp style=\"margin: 0 0 10px 0; font-size: 15px; line-height: 1.6; color: #e8e8e8;\"\u003eIndependent review, published before purchase. First night: G4 on 160M, LZ on 80M, TZ4 on 20M, KP4, 9K, KH6, CE, and Europeans on 40M. Next morning: 31 QSOs in 15 minutes on 40M CW. MFJ shack tuner. Drake L7 amp. \"It does work.\"\u003c\/p\u003e\n    \u003cp style=\"margin: 0; font-size: 12px; color: #aaa;\"\u003e— Rich · NN3W · 28' DXV · Verified Owner\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background:#1a1a1a;padding:18px 22px;border-left:4px solid #B8960C;margin:0 0 28px 0;max-width:860px;\"\u003e\n    \u003cp style=\"margin:0 0 6px 0;font-size:12px;font-weight:bold;color:#B8960C;text-transform:uppercase;letter-spacing:1px;\"\u003eIndependent Assessment — Defense Antenna Executive\u003c\/p\u003e\n    \u003cp style=\"margin:0 0 10px 0;font-size:15px;line-height:1.6;color:#e8e8e8;\"\u003e\n        \"I ran a defense antenna company for 7 years. I am very impressed with the look, quality, machining, and part fit. \n        \u003cstrong style=\"color:#ffffff;\"\u003eIt is a professional-grade product.\u003c\/strong\u003e\n        \" HOA approved in Colorado. Concrete foundation. FT8 DX confirmed to Hawaii, South America, Europe, and Africa.\n    \u003c\/p\u003e\n    \u003cp style=\"margin:0;font-size:12px;color:#aaa;\"\u003e— Rob Freedman · WC0R · Retired Defense Antenna Executive · Amateur Extra · Colorado HOA\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"max-width: 860px; margin: 0 0 28px 0;\"\u003e\n    \u003cp style=\"font-size: 11px; text-transform: uppercase; letter-spacing: 2.5px; color: #b8960c; font-weight: bold; margin: 0 0 8px 0;\"\u003eThe Physics\u003c\/p\u003e\n    \u003ch3 style=\"font-size: 19px; font-weight: bold; color: #1a1a1a; margin: 0 0 10px 0;\"\u003eWhy No Radials — and Why It Works\u003c\/h3\u003e\n    \u003cp style=\"font-size: 15px; color: #555; line-height: 1.65; margin: 0 0 12px 0;\"\u003eTraditional quarter-wave verticals feed at the current maximum at the base — pushing maximum I²R loss directly through soil. Every ohm of ground resistance sits in series with your radiation resistance, stealing signal before it leaves your yard.\u003c\/p\u003e\n    \u003cp style=\"font-size: 15px; color: #555; line-height: 1.65; margin: 0 0 12px 0;\"\u003eThe Greyline VDA is a vertical dipole. Covers 160–6M from a single feedpoint with no radials. Return current flows through the lower element, not through a buried radial field — significantly reducing ground coupling and removing dependency on soil conductivity. Achieves full 5\/8λ geometry on 15 meters — up to 3.5 dBi gain potential on that band. Strong low-angle radiation on 20M and above. Best low-band aperture in the DXF lineup.\u003c\/p\u003e\n    \u003cp style=\"font-size: 13px; color: #888; margin: 0 0 16px 0;\"\u003eThe physics behind the no-radial vertical dipole is established, published work — the full reference shelf is cited below, and a deeper VDA explainer lives in the Signal Lab for further study.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #f9f8f6; border: 1px solid #DDD8CC; border-left: 4px solid #B8960C; padding: 14px 18px; max-width: 860px; margin: 0 0 28px 0;\"\u003e\n    \u003cp style=\"font-size: 12px; font-weight: bold; color: #b8960c; text-transform: uppercase; letter-spacing: 1px; margin: 0 0 6px 0;\"\u003eBefore You Install — Run a Noise Audit\u003c\/p\u003e\n    \u003cp style=\"font-size: 14px; color: #555; line-height: 1.65; margin: 0 0 8px 0;\"\u003eThe VDA's 2-inch pole footprint is the smallest ground signature of any full-HF-coverage antenna. A traditional radial field extends hundreds of feet at 160 meters — running toward every noise source on the property. The VDA goes where you choose. Grab a battery-powered AM radio, tune off any broadcast station, walk your property, and find the quietest spot. That's where the pole goes.\u003c\/p\u003e\n    \u003ca href=\"\/ja\/pages\/assembly-documents\" style=\"font-size: 12px; font-weight: bold; color: #b8960c; text-decoration: none; text-transform: uppercase; letter-spacing: 1px;\"\u003eFull Installation Guide →\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"max-width: 860px; margin: 0 0 28px 0;\"\u003e\n    \u003cp style=\"font-size: 11px; text-transform: uppercase; letter-spacing: 2.5px; color: #b8960c; font-weight: bold; margin: 0 0 8px 0;\"\u003eHOA \u0026amp; XYL Approved\u003c\/p\u003e\n    \u003ch3 style=\"font-size: 19px; font-weight: bold; color: #1a1a1a; margin: 0 0 10px 0;\"\u003eEvery DXF Bundle Ships with the Approval Toolkit\u003c\/h3\u003e\n    \u003cdiv style=\"display: grid; grid-template-columns: 1fr 1fr; gap: 16px;\"\u003e\n        \u003cdiv style=\"background: #fff; border: 1px solid #DDD8CC; border-top: 3px solid #B8960C; padding: 16px 18px;\"\u003e\n            \u003cp style=\"font-size: 12px; font-weight: bold; color: #b8960c; text-transform: uppercase; letter-spacing: 1px; margin: 0 0 6px 0;\"\u003eFor Your HOA Board\u003c\/p\u003e\n            \u003cp style=\"font-size: 13px; color: #555; margin: 0 0 8px 0;\"\u003eArchitectural brief, wind ratings, approval letter — ready to print and submit.\u003c\/p\u003e\n            \u003ca style=\"font-size: 12px; font-weight: bold; color: #b8960c; text-decoration: none; text-transform: uppercase; letter-spacing: 1px;\" href=\"\/ja\/pages\/greyline_architectural_brief\"\u003eHOA Approval Toolkit →\u003c\/a\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"background: #fff; border: 1px solid #DDD8CC; border-top: 3px solid #B8960C; padding: 16px 18px;\"\u003e\n            \u003cp style=\"font-size: 12px; font-weight: bold; color: #b8960c; text-transform: uppercase; letter-spacing: 1px; margin: 0 0 6px 0;\"\u003eFor Your XYL \u0026amp; Neighbors\u003c\/p\u003e\n            \u003cp style=\"font-size: 13px; color: #555; margin: 0 0 8px 0;\"\u003eAppearance, safety, property values — addressed directly.\u003c\/p\u003e\n            \u003ca style=\"font-size: 12px; font-weight: bold; color: #b8960c; text-decoration: none; text-transform: uppercase; letter-spacing: 1px;\" href=\"\/ja\/pages\/property-value-neighbor-faq\"\u003eNeighbor \u0026amp; XYL FAQ →\u003c\/a\u003e\n        \u003c\/div\u003e\n    \u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"max-width: 860px; margin: 0 0 28px 0; padding: 14px 18px; border: 1px solid #DDD8CC; background: #fff;\"\u003e\n    \u003cp style=\"font-size: 12px; font-weight: bold; color: #b8960c; text-transform: uppercase; letter-spacing: 1px; margin: 0 0 6px 0;\"\u003eFeed System Note\u003c\/p\u003e\n    \u003cp style=\"font-size: 13px; color: #555; margin: 0; line-height: 1.6;\"\u003e\n        Balanced VDA — the LDG RT-100 is pre-configured for base-mount. See the \n        \u003ca style=\"color: #b8960c; text-decoration: none;\" href=\"\/ja\/blogs\/news\/correctly-configuring-the-flagpole-tuner-and-balun-feed-system\"\u003eTuner \u0026amp; Balun Configuration Guide →\u003c\/a\u003e\n    \u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"max-width: 860px; margin: 0 0 28px 0;\"\u003e\n    \u003cp style=\"font-size: 11px; text-transform: uppercase; letter-spacing: 2.5px; color: #b8960c; font-weight: bold; margin: 0 0 8px 0;\"\u003eSpecs \u0026amp; Shipping\u003c\/p\u003e\n    \u003ctable style=\"width: 100%; border-collapse: collapse; font-size: 14px;\"\u003e\n        \u003ctbody\u003e\n            \u003ctr style=\"background: #1a1a1a; color: #fff;\"\u003e\n                \u003cth style=\"padding: 10px 14px; text-align: left;\"\u003eSpec\u003c\/th\u003e\n                \u003cth style=\"padding: 10px 14px; text-align: left;\"\u003eDetail\u003c\/th\u003e\n            \u003c\/tr\u003e\n            \u003ctr style=\"background: #f9f8f6;\"\u003e\n                \u003ctd style=\"padding: 10px 14px; color: #555;\"\u003eAntenna Height\u003c\/td\u003e\n                \u003ctd style=\"padding: 10px 14px; font-weight: bold;\"\u003e28 feet\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr\u003e\n                \u003ctd style=\"padding: 10px 14px; color: #555;\"\u003eAntenna Type\u003c\/td\u003e\n                \u003ctd style=\"padding: 10px 14px; font-weight: bold;\"\u003eDXF — Flagpole VDA, OCF\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr style=\"background: #f9f8f6;\"\u003e\n                \u003ctd style=\"padding: 10px 14px; color: #555;\"\u003eBand Coverage\u003c\/td\u003e\n                \u003ctd style=\"padding: 10px 14px; font-weight: bold;\"\u003e160–6M (all HF + 6M)\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr\u003e\n                \u003ctd style=\"padding: 10px 14px; color: #555;\"\u003eATU\u003c\/td\u003e\n                \u003ctd style=\"padding: 10px 14px; font-weight: bold;\"\u003eLDG RT-100 — 125W, 160–6M, base-mount, DC over coax\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr style=\"background: #f9f8f6;\"\u003e\n                \u003ctd style=\"padding: 10px 14px; color: #555;\"\u003eRadials Required\u003c\/td\u003e\n                \u003ctd style=\"padding: 10px 14px; font-weight: bold;\"\u003eNone\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr\u003e\n                \u003ctd style=\"padding: 10px 14px; color: #555;\"\u003eMaterial\u003c\/td\u003e\n                \u003ctd style=\"padding: 10px 14px; font-weight: bold;\"\u003e6061-T6 Aircraft-Grade Aluminum + Fiberglass\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr style=\"background: #f9f8f6;\"\u003e\n                \u003ctd style=\"padding: 10px 14px; color: #555;\"\u003eWind Rating (Flag Up)\u003c\/td\u003e\n                \u003ctd style=\"padding: 10px 14px; font-weight: bold;\"\u003e55 MPH — ASCE 7-10\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr\u003e\n                \u003ctd style=\"padding: 10px 14px; color: #555;\"\u003eWind Rating (Flag Down)\u003c\/td\u003e\n                \u003ctd style=\"padding: 10px 14px; font-weight: bold;\"\u003e65 MPH — ASCE 7-10\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr style=\"background: #f9f8f6;\"\u003e\n                \u003ctd style=\"padding: 10px 14px; color: #555;\"\u003eShipping\u003c\/td\u003e\n                \u003ctd style=\"padding: 10px 14px; font-weight: bold;\"\u003eFree — USA. International rates at checkout.\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr\u003e\n                \u003ctd style=\"padding: 10px 14px; color: #555;\"\u003eMade In\u003c\/td\u003e\n                \u003ctd style=\"padding: 10px 14px; font-weight: bold;\"\u003eSun Valley, Idaho — USA\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr style=\"background: #f9f8f6;\"\u003e\n                \u003ctd style=\"padding: 10px 14px; color: #555;\"\u003eGuarantee\u003c\/td\u003e\n                \u003ctd style=\"padding: 10px 14px; font-weight: bold;\"\u003e7-Year Performance Guarantee\u003c\/td\u003e\n            \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n    \u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: grid; grid-template-columns: 1fr 1fr; gap: 12px; max-width: 860px; margin: 0 0 28px 0;\"\u003e\n    \u003ca style=\"display: block; text-align: center; background: #fff; color: #1a1a1a; border: 1px solid #DDD8CC; padding: 11px 16px; font-size: 12px; font-weight: bold; text-transform: uppercase; letter-spacing: 1px; text-decoration: none;\" href=\"\/ja\/collections\/hoa-flagpole-antenna\/products\/28-dx-flagpole-antenna-160-6m-vertical-dipole-antenna-vda\"\u003eAntenna Only — DXF28 →\u003c\/a\u003e\n    \u003ca style=\"display: block; text-align: center; background: #fff; color: #1a1a1a; border: 1px solid #DDD8CC; padding: 11px 16px; font-size: 12px; font-weight: bold; text-transform: uppercase; letter-spacing: 1px; text-decoration: none;\" href=\"\/ja\/pages\/antenna-selection-guide\"\u003eSelection Guide →\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background:#ffffff; border:1px solid #e0dbd0; border-left:4px solid #B8960C; padding:18px 22px; margin:0 0 14px;\"\u003e\n    \u003cp style=\"font-size:11px; font-weight:700; color:#B8960C; text-transform:uppercase; letter-spacing:1.5px; margin:0 0 10px;\"\u003eConstruction — 6061-T6 Aircraft Aluminum\u003c\/p\u003e\n    \u003cp style=\"font-size:14px; color:#444; line-height:1.75; margin:0 0 10px;\"\u003e\n        \u003cstrong style=\"color:#1a1a1a;\"\u003eOutside:\u003c\/strong\u003e\n         2\" OD, full length — uniform profile top to bottom. Clean. Sleek. Invisible as an antenna. \n        \u003cstrong style=\"color:#1a1a1a;\"\u003eInside:\u003c\/strong\u003e\n         wall graduates where the physics demands it — \n        \u003cstrong style=\"color:#1a1a1a;\"\u003e0.125\" lower 30%\u003c\/strong\u003e\n         where base bending stress peaks, \n        \u003cstrong style=\"color:#1a1a1a;\"\u003e0.065\" upper 70%\u003c\/strong\u003e\n         where reducing mass at height lowers dynamic wind loads. Zero plastic. All-metal. McMaster-Carr hardware throughout. Sheltered installation recommended at this height.\n    \u003c\/p\u003e\n    \u003cp style=\"font-size:14px; color:#444; line-height:1.75; margin:0 0 10px;\"\u003e\n        At 28 feet, the Greyline VDA presents \n        \u003cstrong style=\"color:#1a1a1a;\"\u003e4.67 square feet\u003c\/strong\u003e\n         of wind surface. At this height the moment arm is at its longest — every additional square foot of projected area translates directly into greater base bending stress and greater dynamic fatigue loading on every gust cycle. The graduated wall construction is not a cost-saving measure. It is the correct engineering response: maximum material where bending stress peaks, minimum mass where it only adds dynamic load.\n    \u003c\/p\u003e\n    \u003cp style=\"font-size:14px; color:#444; line-height:1.75; margin:0;\"\u003e\n        Every Greyline wind rating is derived from ASCE 7-10 structural engineering values — actual geometry, actual math, published methodology. \n        \u003cstrong style=\"color:#1a1a1a;\"\u003eA wind rating without a cited standard is a guess dressed as a spec.\u003c\/strong\u003e\n         Ask any antenna maker which standard they used. If they can't cite one, you have your answer.\n    \u003c\/p\u003e\n\u003c\/div\u003e\n\u003cstyle\u003e\n.gp-faq details {\n    border: 1px solid #DDD8CC;\n    margin: 0 0 8px 0;\n}\n\n.gp-faq summary {\n    padding: 14px 18px;\n    font-size: 14px;\n    font-weight: 700;\n    color: #1a1a1a;\n    cursor: pointer;\n    list-style: none;\n    display: flex;\n    justify-content: space-between;\n    align-items: center;\n}\n\n.gp-faq summary::-webkit-details-marker {\n    display: none;\n}\n\n.gp-faq summary::after {\n    content: \"+\";\n    color: #B8960C;\n    font-size: 18px;\n    font-weight: 400;\n    flex-shrink: 0;\n    margin-left: 16px;\n}\n\n.gp-faq details[open] summary::after {\n    content: \"-\";\n}\n\n.gp-faq details[open] summary {\n    color: #B8960C;\n}\n\n.gp-faq .fb {\n    padding: 0 18px 16px 18px;\n    border-top: 1px solid #DDD8CC;\n}\n\n.gp-faq .fb p {\n    font-size: 14px;\n    color: #555;\n    line-height: 1.65;\n    margin: 12px 0 0 0;\n}\n\n.gp-faq .fb a {\n    color: #B8960C;\n    text-decoration: none;\n}\n\n.gp-faq .fc {\n    font-size: 13px;\n    color: #555;\n    margin: 4px 0 0 0;\n}\n\n.gp-faq .fh {\n    font-size: 13px;\n    color: #B8960C;\n    font-weight: 700;\n    margin: 8px 0 0 0;\n}\n\u003c\/style\u003e\n\u003cdiv style=\"background: #ffffff; border: 1px solid #e0dbd0; border-left: 4px solid #B8960C; padding: 14px 18px; margin: 0 0 14px;\"\u003e\n    \u003cp style=\"font-size: 13px; color: #444; line-height: 1.7; margin: 0;\"\u003eThe antenna in this bundle ships from our current artisan production run — hand-built, individually fitted and finished, with threaded metal-to-metal section marriages. Same engineering, same guarantee, same performance. The LDG RT-100 ships as matched system.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #1a1a1a; border: 1px solid rgba(184,150,12,0.28); border-top: 4px solid #B8960C; padding: 24px 22px; margin: 0 0 32px;\"\u003e\n    \u003cp style=\"display: inline-block; background: #B8960C; color: #000000; font-family: 'Courier New',monospace; font-size: 10px; font-weight: bold; letter-spacing: 3px; text-transform: uppercase; padding: 4px 12px; margin: 0 0 14px;\"\u003eLimited Edition  ·  Artisan Production Run\u003c\/p\u003e\n    \u003cp style=\"font-size: 17px; font-weight: bold; color: #ffffff; line-height: 1.35; margin: 0 0 10px;\"\u003eHand-built antenna. Production-matched tuner. The complete system, built to last.\u003c\/p\u003e\n    \u003cp style=\"font-size: 14px; color: #e8e8e8; line-height: 1.75; margin: 0 0 10px;\"\u003eSame 6061-T6 aircraft aluminum. Same ASCE 7-10 wind ratings. Same 7-year guarantee. Threaded transition sections machined directly into the metal — self-aligning, no through-bolting, less total weight. Paired with the LDG RT-100 at the feedpoint where the tuner belongs.\u003c\/p\u003e\n    \u003cp style=\"font-size: 14px; color: #e8e8e8; line-height: 1.75; margin: 0;\"\u003e\n        Manufacturing expanding. Things coming this year. \n        \u003cstrong style=\"color: #ffffff;\"\u003eWatch this space.\u003c\/strong\u003e\n    \u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"max-width: 860px; margin: 0 0 28px 0;\"\u003e\n    \u003cp style=\"font-size: 11px; text-transform: uppercase; letter-spacing: 2.5px; color: #b8960c; font-weight: bold; margin: 0 0 8px 0;\"\u003eCommon Questions\u003c\/p\u003e\n    \u003ch3 style=\"font-size: 19px; font-weight: bold; color: #1a1a1a; margin: 0 0 16px 0;\"\u003eBefore You Order — Answered.\u003c\/h3\u003e\n    \u003cdiv class=\"gp-faq\"\u003e\n        \u003cdetails\u003e\n            \u003csummary\u003eWhat's the current lead time and availability?\u003c\/summary\u003e\n            \u003cdiv class=\"fb\"\u003e\n                \u003cp\u003e\n                    Each antenna is hand-built to order during our current artisan production run — typical lead time runs a few weeks, returning to ship-from-stock as the run completes. Current lead time is always posted on our \n                    \u003ca href=\"\/ja\/pages\/order-status-updates-for-greyline-performance\"\u003eOrder Status page →\u003c\/a\u003e\n                     Call 435-200-4902 for a specific ship date.\n                \u003c\/p\u003e\n            \u003c\/div\u003e\n        \u003c\/details\u003e\n        \u003cdetails\u003e\n            \u003csummary\u003eHow long does shipping take once it leaves Sun Valley?\u003c\/summary\u003e\n            \u003cdiv class=\"fb\"\u003e\n                \u003cp\u003eUSA shipping is free. Ground transit runs 2–5 business days from Sun Valley, Idaho. Tracking sent at shipment. International rates calculated at checkout.\u003c\/p\u003e\n            \u003c\/div\u003e\n        \u003c\/details\u003e\n        \u003cdetails\u003e\n            \u003csummary\u003eWhat's included — do I need to source anything separately?\u003c\/summary\u003e\n            \u003cdiv class=\"fb\"\u003e\n                \u003cp\u003eEverything to assemble and mount is in the box. You supply coax. That's it.\u003c\/p\u003e\n                \u003cp class=\"fc\"\u003e✓ VDA Radiator (your chosen height)\u003c\/p\u003e\n                \u003cp class=\"fc\"\u003e✓ RF Choke \u0026amp; Precision Feedline Hardware\u003c\/p\u003e\n                \u003cp class=\"fc\"\u003e✓ Ground Sleeve Kit — in-ground, tower, roof, deck, dock compatible\u003c\/p\u003e\n                \u003cp class=\"fc\"\u003e✓ LDG RT-100 Remote ATU — 125W, weatherproof, base-mounted\u003c\/p\u003e\n                \u003cp class=\"fc\"\u003e✓ Assembly Manual \u0026amp; Tuning Guide\u003c\/p\u003e\n                \u003cp class=\"fc\"\u003e✓ 7-Year Performance Guarantee\u003c\/p\u003e\n                \u003cp class=\"fh\"\u003eComplete system — antenna and ATU included. You supply coax only.\u003c\/p\u003e\n            \u003c\/div\u003e\n        \u003c\/details\u003e\n        \u003cdetails\u003e\n            \u003csummary\u003eThe bundle includes the LDG RT-100 — what power level does it handle?\u003c\/summary\u003e\n            \u003cdiv class=\"fb\"\u003e\n                \u003cp\u003eThe LDG RT-100 mounts at the antenna base, powered over coax — no extra cables. 125W, 160–6M, weatherproof. Like all ATUs, it carries a reduced power rating for 100% duty cycle digital modes — check the spec sheet for your operating style. Running above 125W? Source a higher-power ATU for your needs. The antenna handles any power level and any mode without restriction.\u003c\/p\u003e\n            \u003c\/div\u003e\n        \u003c\/details\u003e\n        \u003cdetails\u003e\n            \u003csummary\u003eAre there other bundle configurations available?\u003c\/summary\u003e\n            \u003cdiv class=\"fb\"\u003e\n                \u003cp\u003e\n                    The standard bundle pairs your antenna with the LDG RT-100 (125W). For higher power requirements, contact us — we can configure bundles with the higher-power ATU or equivalent. \n                    \u003ca href=\"\/ja\/pages\/contact\"\u003eContact us →\u003c\/a\u003e\n                \u003c\/p\u003e\n            \u003c\/div\u003e\n        \u003c\/details\u003e\n        \u003cdetails\u003e\n            \u003csummary\u003eHow difficult is installation? How long does it take?\u003c\/summary\u003e\n            \u003cdiv class=\"fb\"\u003e\n                \u003cp\u003eMost operators are on the air in under an hour. Dig a post hole, build the antenna sections (15–30 min), drop it in, run coax, connect the ATU. All stainless hardware comes pre-fastened — no loose hardware to lose in the grass.\u003c\/p\u003e\n                \u003cp\u003e\n                    Assembly documents at \n                    \u003ca href=\"\/ja\/pages\/assembly-documents\"\u003eSetup \u0026amp; Manuals →\u003c\/a\u003e\n                     Questions during install? Call 435-200-4902.\n                \u003c\/p\u003e\n            \u003c\/div\u003e\n        \u003c\/details\u003e\n        \u003cdetails\u003e\n            \u003csummary\u003eWhat does the 7-Year Guarantee cover?\u003c\/summary\u003e\n            \u003cdiv class=\"fb\"\u003e\n                \u003cp\u003e\n                    Seven years of performance coverage. If it fails under normal operating conditions, we make it right. No questions asked. A customer's antenna fell in a severe ice storm — we sent a replacement immediately. Full terms at \n                    \u003ca href=\"\/ja\/policies\/refund-policy\"\u003e7-Year Warranty Policy →\u003c\/a\u003e\n                \u003c\/p\u003e\n            \u003c\/div\u003e\n        \u003c\/details\u003e\n    \u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- AUTHORITY ANCHOR BLOCK --\u003e\n\u003cdiv style=\"margin: 32px 0; padding: 24px 28px; background: #fafaf7; border-left: 3px solid #B8960C; font-family: Georgia, 'Times New Roman', serif; font-size: 15px; line-height: 1.7; color: #2a2a2a;\"\u003e\n    \u003cdiv style=\"color: #B8960C; font-size: 11px; letter-spacing: 2.5px; text-transform: uppercase; margin-bottom: 10px;\"\u003eWhy this antenna works\u003c\/div\u003e\n    \u003cp style=\"margin: 0 0 12px 0;\"\u003eEvery Greyline design decision traces back to named, published antenna physics — Zavrel W7SX, Kraus W8JK, Severns N6LF on ground systems, Maxwell W2DU on transmission lines, Lewallen W7EL on modeling. Not opinions. Cited works.\u003c\/p\u003e\n    \u003cp style=\"margin: 0; font-size: 14px; color: #555;\"\u003e\n        The full shelf — Zavrel, Kraus, Severns, Maxwell, Lewallen — lives under \n        \u003cem\u003eThe Signal Lab · The Shelf We Read From\u003c\/em\u003e\n         in the menu, open to everyone.\n    \u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- \/AUTHORITY ANCHOR BLOCK --\u003e\n\u003cdiv style=\"max-width: 860px; border-top: 1px solid #DDD8CC; padding-top: 16px; margin: 0 0 8px 0;\"\u003e\n    \u003cp style=\"font-size: 13px; color: #888; font-style: italic; margin: 0;\"\u003eHam Radio is fun again! Pass it on... 73, The Greyline Performance Team · Sun Valley, Idaho · 435-200-4902\u003c\/p\u003e\n\u003c\/div\u003e\n","brand":"Greyline Performance","offers":[{"title":"Default Title","offer_id":48861658284309,"sku":"DXV28-2OD","price":1250.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0028\/2571\/5779\/files\/greylinehfstealthantennahoaflagpoleWB2DCA-28-roof-mounted_480x480_eb2e28c8-8e35-480a-a833-551623dfe9f6.png?v=1770159548"},{"product_id":"9-foot-whip-for-greyline-antennas","title":"9' DX Whip: 5\/8λ Geometry, Up to +3.5 dBi gain | Greyline","description":"\u003cdiv style=\"background: rgb(250, 250, 247); padding-top: 32px; padding-right: 24px; padding-bottom: 32px; border-radius: 8px; margin: 24px 0px;\"\u003e\n\u003cspan style=\"color: rgb(184, 150, 12); font-size: 11px; font-weight: bold; letter-spacing: 2.5px; text-transform: uppercase;\"\u003eDX Performance Parts · Greyline VDA Compatible\u003c\/span\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"max-width: 860px; margin: 0 auto; padding: 0 0 8px 0;\"\u003e\n\u003ch2 style=\"font-size: 26px; font-weight: bold; color: #1a1a1a; line-height: 1.25; margin: 0 0 14px 0;\"\u003eThe 9’ DX Whip — More Aperture. Real Gain. Drop-In Fit.\u003c\/h2\u003e\n\u003cp style=\"color: #b8960c; font-family: 'Courier New',monospace; font-size: 12px; letter-spacing: 2px; text-transform: uppercase; margin: 0 0 12px 0;\"\u003eAll-Band Tuning\u003c\/p\u003e\n\u003ch3 style=\"color: #1a1a1a; font-family: Georgia,serif; font-size: 24px; font-weight: normal; margin: 0 0 16px 0;\"\u003eNine Feet of Adjustable Upper Radiator. Every Band Benefits.\u003c\/h3\u003e\n\u003cp style=\"color: #1a1a1a; font-family: Georgia,serif; font-size: 16px; line-height: 1.7; margin: 0 0 16px 0;\"\u003eAdding the 9′ DX Whip extends the upper radiator on any Greyline VDA, shifting the antenna’s electrical geometry across the entire 160–6M spectrum. Every band the antenna covers benefits from the added length — right up until the whip is extended past 5\/8λ on a given band, where the lobe pattern begins to break up. Below that ceiling, longer is more efficient on every band.\u003c\/p\u003e\n\u003cp style=\"color: #1a1a1a; font-family: Georgia,serif; font-size: 16px; line-height: 1.7; margin: 0 0 16px 0;\"\u003eThe whip is adjustable from 3′ to 11.5′, so operators can choose a length that maximizes their highest band of interest. Where the geometry hits 5\/8λ, the modeled gain reaches up to 3.5 dBi at the optimum DX angle over average ground — but that single-band peak is one detail in a broader story. The whip’s real job is to give every band on the antenna a longer effective radiator.\u003c\/p\u003e\n\u003ca style=\"color: #b8960c; text-decoration: underline; border-bottom: none;\" href=\"\/ja\/pages\/antenna-aperture-and-gain\"\u003eRead the full aperture and gain doctrine →\u003c\/a\u003e\n\u003cdiv style=\"background: #1a1a1a; color: #e8e6e0; padding: 18px 22px; border-left: 4px solid #B8960C; margin: 0 0 28px 0; max-width: 860px;\"\u003e\n\u003cp style=\"margin: 0 0 6px 0; font-size: 12px; font-weight: bold; color: #b8960c; text-transform: uppercase; letter-spacing: 1px;\"\u003eDirect Fit\u003c\/p\u003e\n\u003cp style=\"margin: 0; font-size: 15px; line-height: 1.6; color: #e8e6e0;\"\u003eCompatible with all DXF and DXV models — 12, 16, 20, 24, and 28 foot. No tools beyond hand-tight. No modification to the antenna required.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 16px; margin: 0 0 28px 0; max-width: 860px;\"\u003e\n\u003cdiv style=\"background: #fff; border: 1px solid #DDD8CC; border-top: 3px solid #B8960C; padding: 18px;\"\u003e\n\u003cp style=\"font-size: 12px; font-weight: bold; color: #b8960c; text-transform: uppercase; letter-spacing: 1px; margin: 0 0 6px 0;\"\u003eAperture Added\u003c\/p\u003e\n\u003cp style=\"font-size: 20px; font-weight: bold; color: #1a1a1a; margin: 0 0 4px 0;\"\u003e9 Feet\u003c\/p\u003e\n\u003cp style=\"font-size: 13px; color: #555; margin: 0;\"\u003eShifts 5\/8λ sweet spot by one full model size.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #fff; border: 1px solid #DDD8CC; border-top: 3px solid #B8960C; padding: 18px;\"\u003e\n\u003cp style=\"font-size: 12px; font-weight: bold; color: #b8960c; text-transform: uppercase; letter-spacing: 1px; margin: 0 0 6px 0;\"\u003ePeak MODELED Gain\u003c\/p\u003e\n\u003cp style=\"font-size: 20px; font-weight: bold; color: #1a1a1a; margin: 0 0 4px 0;\"\u003eUp to 3.5 dBi\u003c\/p\u003e\n\u003cp style=\"font-size: 13px; color: #555; margin: 0;\"\u003e\u003cspan\u003eAt optimum DX angle, best combined-height configuration.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #fff; border: 1px solid #DDD8CC; border-top: 3px solid #B8960C; padding: 18px;\"\u003e\n\u003cp style=\"font-size: 12px; font-weight: bold; color: #b8960c; text-transform: uppercase; letter-spacing: 1px; margin: 0 0 6px 0;\"\u003eInstallation\u003c\/p\u003e\n\u003cp style=\"font-size: 20px; font-weight: bold; color: #1a1a1a; margin: 0 0 4px 0;\"\u003eMinutes\u003c\/p\u003e\n\u003cp style=\"font-size: 13px; color: #555; margin: 0;\"\u003eInstall whip into top cap. Hand-tight. Done.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- PHYSICS: THE GAIN STORY --\u003e\n\u003cdiv style=\"max-width: 860px; margin: 0 0 28px 0;\"\u003e\n\u003cp style=\"font-size: 11px; text-transform: uppercase; letter-spacing: 2.5px; color: #b8960c; font-weight: bold; margin: 0 0 8px 0;\"\u003eThe Physics\u003c\/p\u003e\n\u003ch3 style=\"font-size: 19px; font-weight: bold; color: #1a1a1a; margin: 0 0 10px 0;\"\u003eWhy 9 More Feet Matters\u003c\/h3\u003e\n\u003cp style=\"font-size: 15px; color: #555; line-height: 1.65; margin: 0 0 12px 0;\"\u003eFor a vertical antenna, the 5\/8λ point is peak gain — up to 3.5 dBi over isotropic at the optimum DX radiation angle. Below 5\/8λ, gain is building. Above it, the pattern begins to rise in angle and the gain advantage diminishes. Adding 9 feet shifts your entire operating point up the gain curve toward — or to — the 5\/8λ sweet spot on a higher band.\u003c\/p\u003e\n\u003cp style=\"font-size: 15px; color: #555; line-height: 1.65; margin: 0 0 12px 0;\"\u003eThe effect is most pronounced on the bands where your combined height is closest to 5\/8λ. On bands where the antenna is already well past 5\/8λ, the whip has less effect — which is why the 28ft model sees diminishing returns from the whip on 15M (already at sweet spot) but meaningful improvement on 20 and 30 meters.\u003c\/p\u003e\n\u003cp style=\"font-size: 13px; color: #888; margin: 0;\"\u003ePhysics foundation: Zavrel W7SX · \u003cem\u003eAntenna Physics: An Introduction\u003c\/em\u003e (ARRL, 2020) · gain figures at optimum angle over average ground.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- GAIN TABLE --\u003e\n\u003cdiv style=\"max-width: 860px; margin: 0 0 28px 0;\"\u003e\n\u003cp style=\"font-size: 11px; text-transform: uppercase; letter-spacing: 2.5px; color: #b8960c; font-weight: bold; margin: 0 0 8px 0;\"\u003eW7SX Gain Data\u003c\/p\u003e\n\u003ch3 style=\"font-size: 19px; font-weight: bold; color: #1a1a1a; margin: 0 0 10px 0;\"\u003eWhat the Whip Does to Your Antenna — By Height\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x: auto; margin: 0 0 12px;\"\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; font-size: 13px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background: #1a1a1a; color: #fff;\"\u003e\n\u003cth style=\"padding: 10px 12px; text-align: left;\"\u003eBase + Whip\u003c\/th\u003e\n\u003cth style=\"padding: 10px 12px; text-align: left;\"\u003eTotal\u003c\/th\u003e\n\u003cth style=\"padding: 10px 12px; text-align: center;\"\u003e30M\u003c\/th\u003e\n\u003cth style=\"padding: 10px 12px; text-align: center;\"\u003e20M\u003c\/th\u003e\n\u003cth style=\"padding: 10px 12px; text-align: center;\"\u003e17M\u003c\/th\u003e\n\u003cth style=\"padding: 10px 12px; text-align: center;\"\u003e15M\u003c\/th\u003e\n\u003cth style=\"padding: 10px 12px; text-align: center;\"\u003e12M\u003c\/th\u003e\n\u003cth style=\"padding: 10px 12px; text-align: center;\"\u003e10M\u003c\/th\u003e\n\u003cth style=\"padding: 10px 12px; text-align: left;\"\u003eNew Sweet Spot\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr style=\"background: #fff; border-bottom: 1px solid #DDD8CC;\"\u003e\n\u003ctd style=\"padding: 10px 12px; font-weight: bold; color: #1a1a1a;\"\u003e12 + 9\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 12px; color: #555;\"\u003e21 ft\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 12px; text-align: center; color: #555;\"\u003e-0.47\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 12px; text-align: center; color: #555;\"\u003e0.64\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 12px; text-align: center; color: #555;\"\u003e1.35\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 12px; text-align: center; color: #555;\"\u003e1.88\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 12px; text-align: center; color: #555;\"\u003e2.66\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 12px; text-align: center; font-weight: bold; color: #b8960c;\"\u003e3.24\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 12px; font-size: 12px; color: #b8960c; font-weight: bold;\"\u003e5\/8λ 10M\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f9f8f6; border-bottom: 1px solid #DDD8CC;\"\u003e\n\u003ctd style=\"padding: 10px 12px; font-weight: bold; color: #1a1a1a;\"\u003e16 + 9\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 12px; color: #555;\"\u003e25 ft\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 12px; text-align: center; color: #555;\"\u003e-1.14\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 12px; text-align: center; color: #555;\"\u003e1.04\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 12px; text-align: center; color: #555;\"\u003e1.86\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 12px; text-align: center; color: #555;\"\u003e2.54\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 12px; text-align: center; font-weight: bold; color: #b8960c;\"\u003e3.42\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 12px; text-align: center; color: #555;\"\u003eEDZ\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 12px; font-size: 12px; color: #b8960c; font-weight: bold;\"\u003e5\/8λ 12M\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #fff; border-bottom: 1px solid #DDD8CC;\"\u003e\n\u003ctd style=\"padding: 10px 12px; font-weight: bold; color: #1a1a1a;\"\u003e20 + 9\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 12px; color: #555;\"\u003e29 ft\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 12px; text-align: center; color: #555;\"\u003e-0.47\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 12px; text-align: center; color: #555;\"\u003e2.27\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 12px; text-align: center; color: #555;\"\u003e3.54\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 12px; text-align: center; font-weight: bold; color: #b8960c;\"\u003e2.50\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 12px; text-align: center; color: #555;\"\u003eEDZ\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 12px; text-align: center; color: #555;\"\u003eEDZ\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 12px; font-size: 12px; color: #b8960c; font-weight: bold;\"\u003e5\/8λ 15M — matches 28ft bare\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f9f8f6; border-bottom: 1px solid #DDD8CC;\"\u003e\n\u003ctd style=\"padding: 10px 12px; font-weight: bold; color: #1a1a1a;\"\u003e24 + 9\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 12px; color: #555;\"\u003e33 ft\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 12px; text-align: center; color: #555;\"\u003e-0.02\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 12px; text-align: center; font-weight: bold; color: #b8960c;\"\u003e2.27\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 12px; text-align: center; font-weight: bold; color: #b8960c;\"\u003e3.54\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 12px; text-align: center; color: #555;\"\u003eEDZ+\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 12px; text-align: center; color: #555;\"\u003eEDZ\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 12px; text-align: center; color: #555;\"\u003eEDZ\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 12px; font-size: 12px; color: #b8960c; font-weight: bold;\"\u003e5\/8λ 17M + 1\/2λ 20M\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #fff;\"\u003e\n\u003ctd style=\"padding: 10px 12px; font-weight: bold; color: #1a1a1a;\"\u003e28 + 9\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 12px; color: #555;\"\u003e37 ft\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 12px; text-align: center; color: #555;\"\u003e0.38\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 12px; text-align: center; color: #555;\"\u003e2.89\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 12px; text-align: center; color: #555;\"\u003eEDZ+\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 12px; text-align: center; color: #555;\"\u003eEDZ\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 12px; text-align: center; color: #555;\"\u003eEDZ\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 12px; text-align: center; color: #555;\"\u003eEDZ\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 12px; font-size: 12px; color: #555;\"\u003eLow-band improvement; high bands past sweet spot\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cp style=\"font-size: 12px; color: #888; margin: 0;\"\u003edBi gain at optimum angle over average ground. Source: W7SX · \u003cem\u003eAntenna Physics: An Introduction\u003c\/em\u003e (ARRL, 2020). EDZ = Extended Double Zepp region — pattern lobing rises above DX-favorable angles. Gold = band sweet spot for that combined height.\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; color: #555; line-height: 1.65; margin: 12px 0 0 0;\"\u003eWant your exact numbers? \u003ca style=\"color: #b8960c; text-decoration: underline; border-bottom: none; font-weight: bold;\" href=\"\/ja\/pages\/greyline-vda-optimizer\"\u003eRun your base height plus the whip through the VDA Optimizer →\u003c\/a\u003e Confirm where 5\/8λ lands and the modeled gain before you commit.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- BEST UPGRADE STORY --\u003e\n\u003cdiv style=\"background: #1a1a1a; color: #e8e6e0; padding: 20px 24px; border-left: 4px solid #B8960C; margin: 0 0 28px 0; max-width: 860px;\"\u003e\n\u003cp style=\"font-size: 12px; font-weight: bold; color: #b8960c; text-transform: uppercase; letter-spacing: 1px; margin: 0 0 10px 0;\"\u003eBest Upgrade in the Lineup\u003c\/p\u003e\n\u003cp style=\"font-size: 15px; line-height: 1.7; margin: 0 0 12px 0; color: #e8e6e0;\"\u003eThe 20ft + whip (29ft total) achieves 5\/8λ on 15 meters — matching the 28ft bare antenna. If you own a 20ft and want flagship 15M performance without replacing the antenna, this is the answer.\u003c\/p\u003e\n\u003cp style=\"font-size: 15px; line-height: 1.7; margin: 0; color: #e8e6e0;\"\u003eThe 24ft + whip (33ft total) hits 5\/8λ on 17M while simultaneously at 1\/2λ on 20M. That’s the Founder’s home station configuration.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- OWNER QUOTE --\u003e\n\u003cdiv style=\"background: #f9f8f6; border: 1px solid #DDD8CC; border-left: 4px solid #B8960C; padding: 16px 20px; max-width: 860px; margin: 0 0 28px 0;\"\u003e\n\u003cp style=\"font-size: 13px; font-weight: bold; color: #1a1a1a; margin: 0 0 6px 0;\"\u003eFrom the Founder\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; color: #555; line-height: 1.65; margin: 0 0 8px 0;\"\u003e“I run a 33-foot at home — a 24-foot flagpole plus the 9-foot whip — and \u003cmeta charset=\"UTF-8\"\u003e\u003cspan\u003ework Africa and Asia regularly on 10 through 30 meters — strong multiband performance with peak gain in the 17 to 20 meter range\u003c\/span\u003e. I notice it there. Go as tall as your lot allows — the multiband improvement is real.”\u003c\/p\u003e\n\u003cp style=\"font-size: 12px; color: #888; margin: 0;\"\u003e— Jon Kimball KL2A · Founder, Greyline Performance\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- INSTALLATION --\u003e\n\u003cdiv style=\"max-width: 860px; margin: 0 0 28px 0;\"\u003e\n\u003cp style=\"font-size: 11px; text-transform: uppercase; letter-spacing: 2.5px; color: #b8960c; font-weight: bold; margin: 0 0 8px 0;\"\u003eInstallation\u003c\/p\u003e\n\u003ch3 style=\"font-size: 19px; font-weight: bold; color: #1a1a1a; margin: 0 0 10px 0;\"\u003eTwo Minutes. No Tools.\u003c\/h3\u003e\n\u003cdiv style=\"display: grid; grid-template-columns: 1fr 1fr; gap: 16px;\"\u003e\n\u003cdiv style=\"background: #fff; border: 1px solid #DDD8CC; border-left: 4px solid #B8960C; padding: 16px;\"\u003e\n\u003cp style=\"font-size: 13px; font-weight: bold; color: #1a1a1a; margin: 0 0 6px 0;\"\u003eInstall\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; color: #555; line-height: 1.65; margin: 0;\"\u003eRemove the existing top cap from your antenna. Thread the whip into it. Hand-tight. The ATU will automatically re-tune on first use — it detects the new configuration and updates its memory.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #fff; border: 1px solid #DDD8CC; border-left: 4px solid #B8960C; padding: 16px;\"\u003e\n\u003cp style=\"font-size: 13px; font-weight: bold; color: #1a1a1a; margin: 0 0 6px 0;\"\u003eAfter Installation\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; color: #555; line-height: 1.65; margin: 0;\"\u003eIf using an LDG remote ATU: reset the tuner memory on each band for the first tune. The new aperture means new impedance profiles — the tuner needs one pass per band to learn the configuration.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- SPECS --\u003e\n\u003cdiv style=\"max-width: 860px; margin: 0 0 28px 0;\"\u003e\n\u003cp style=\"font-size: 11px; text-transform: uppercase; letter-spacing: 2.5px; color: #b8960c; font-weight: bold; margin: 0 0 8px 0;\"\u003eSpecs\u003c\/p\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; font-size: 14px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"background: #1a1a1a; color: #fff;\"\u003e\n\u003cth style=\"padding: 10px 14px; text-align: left;\"\u003eSpec\u003c\/th\u003e\n\u003cth style=\"padding: 10px 14px; text-align: left;\"\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f9f8f6;\"\u003e\n\u003ctd style=\"padding: 10px 14px; color: #555;\"\u003eLength\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 14px; font-weight: bold;\"\u003e9 ft nominal — adjustable 3 ft to 11.5 ft for precise 5\/8λ tuning to your combined height\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px 14px; color: #555;\"\u003eCompatibility\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 14px; font-weight: bold;\"\u003eAll DXF and DXV models — 12, 16, 20, 24, 28 ft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f9f8f6;\"\u003e\n\u003ctd style=\"padding: 10px 14px; color: #555;\"\u003eMaterial\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 14px; font-weight: bold;\"\u003eAluminum — lightweight, corrosion resistant\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px 14px; color: #555;\"\u003eInstallation\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 14px; font-weight: bold;\"\u003eUses existing top cap — no modification required\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f9f8f6;\"\u003e\n\u003ctd style=\"padding: 10px 14px; color: #555;\"\u003ePeak Modeled Gain\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 14px; font-weight: bold;\"\u003e\u003cspan\u003eUp to 3.5 dBi at optimum angle over average ground \u003cbr\u003e(height dependent — see gain table)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px 14px; color: #555;\"\u003eShipping\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 14px; font-weight: bold;\"\u003eFree — USA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f9f8f6;\"\u003e\n\u003ctd style=\"padding: 10px 14px; color: #555;\"\u003eMade In\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 14px; font-weight: bold;\"\u003eSun Valley, Idaho — USA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c!-- RELATED --\u003e\n\u003cdiv style=\"display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 12px; max-width: 860px; margin: 0 0 28px 0;\"\u003e\n\u003ca href=\"\/ja\/collections\/hoa-flagpole-antenna\" style=\"display: block; text-align: center; background: #B8960C; color: #fff; padding: 11px 16px; font-size: 12px; font-weight: bold; text-transform: uppercase; letter-spacing: 1px; text-decoration: none;\"\u003eShop DXF Flagpoles →\u003c\/a\u003e \u003ca href=\"\/ja\/collections\/vertical-antenna\" style=\"display: block; text-align: center; background: #fff; color: #1a1a1a; border: 1px solid #DDD8CC; padding: 11px 16px; font-size: 12px; font-weight: bold; text-transform: uppercase; letter-spacing: 1px; text-decoration: none;\"\u003eShop DXV Verticals →\u003c\/a\u003e \u003ca href=\"\/ja\/pages\/technical-performance-comparisons\" style=\"display: block; text-align: center; background: #fff; color: #1a1a1a; border: 1px solid #DDD8CC; padding: 11px 16px; font-size: 12px; font-weight: bold; text-transform: uppercase; letter-spacing: 1px; text-decoration: none;\"\u003ePhysics \u0026amp; Gain Data →\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c!-- AUTHORITY ANCHOR BLOCK --\u003e\n\u003cdiv style=\"margin: 32px 0; padding: 24px 28px; background: #fafaf7; border-left: 3px solid #B8960C; font-family: Georgia, 'Times New Roman', serif; font-size: 15px; line-height: 1.7; color: #2a2a2a;\"\u003e\n\u003cdiv style=\"color: #b8960c; font-size: 11px; letter-spacing: 2.5px; text-transform: uppercase; margin-bottom: 10px;\"\u003eWhy this antenna works\u003c\/div\u003e\n\u003cp style=\"margin: 0 0 12px 0;\"\u003eEvery Greyline design decision traces back to named, published antenna physics — Zavrel W7SX, Kraus W8JK, Severns N6LF on ground systems, Maxwell W2DU on transmission lines, Lewallen W7EL on modeling. Not opinions. Cited works.\u003c\/p\u003e\n\u003cp style=\"margin: 0;\"\u003e\u003ca style=\"color: #8b6f0a; text-decoration: none; border-bottom: 1px dotted #B8960C; font-weight: bold;\" href=\"\/ja\/pages\/authority-sources\"\u003eRead the full shelf →\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- \/AUTHORITY ANCHOR BLOCK --\u003e\n\u003cdiv style=\"border-top: 1px solid #DDD8CC; padding-top: 16px; margin: 0 0 8px 0; max-width: 860px;\"\u003e\n\u003cp style=\"font-size: 13px; color: #888; font-style: italic; margin: 0;\"\u003eHam Radio is fun again! Pass it on... 73, The Greyline Performance Team · Sun Valley, Idaho · 435-200-4902\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Greyline Performance Antennas","offers":[{"title":"Default Title","offer_id":49138508988693,"sku":null,"price":175.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0028\/2571\/5779\/files\/9footWhip.png?v=1769981476"}],"url":"https:\/\/greylineperformance.com\/ja\/collections\/vertical-antenna\/vda.oembed","provider":"Greyline Performance Antennas","version":"1.0","type":"link"}