{"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=\"\/ru\/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=\"\/ru\/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=\"\/ru\/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=\"\/ru\/pages\/feedline-physics\"\u003eFeedline Physics guide\u003c\/a\u003e and \u003ca style=\"color: #b8960c; font-weight: bold;\" href=\"\/ru\/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=\"\/ru\/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=\"\/ru\/collections\/bundle-dx-flagpole-antenna-remote-antenna-tuner\"\u003eShop DXV + ATU Bundles\u003c\/a\u003e \u003ca class=\"gl-btn-primary\" href=\"\/ru\/products\/9-foot-whip-for-greyline-antennas\"\u003e9 ft Whip — +3.5 dBi\u003c\/a\u003e \u003ca class=\"gl-btn-secondary\" href=\"\/ru\/pages\/how-to-order-a-greyline-performance-antenna-system-a-check-list\"\u003eAntenna Selection Guide\u003c\/a\u003e \u003ca class=\"gl-btn-secondary\" href=\"\/ru\/pages\/agency-gov-solutions\"\u003eAgency Hub\u003c\/a\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: uppderercase; 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 155 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;\"\u003eThe 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? \u003ca href=\"\/ru\/collections\/hoa-flagpole-antenna\/products\/20-foot-flagpole-antenna\" style=\"color: #b8960c; text-decoration: none;\"\u003eSee the DXF20 →\u003c\/a\u003e\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;\"\u003e155 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 · \u003ca href=\"\/ru\/blogs\/news\/kj7cwq-16-dx-flagpole-and-sgc-237-easily-works-160-6m-pictures\" style=\"color: #b8960c; text-decoration: none;\"\u003eFull install report →\u003c\/a\u003e\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;\"\u003ePhysics foundation: Zavrel W7SX · \u003cem\u003eAntenna Physics: An Introduction\u003c\/em\u003e (ARRL, 2020) · Kraus W8JK · \u003cem\u003eAntennas\u003c\/em\u003e (McGraw-Hill) · \u003ca style=\"color: #b8960c; text-decoration: none;\" href=\"\/ru\/pages\/what-is-a-vda-vertical-dipole-antenna\"\u003eDeep dive: What is a VDA? →\u003c\/a\u003e\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=\"\/ru\/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;\"\u003e155 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;\"\u003e115 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;\"\u003e90 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;\"\u003e70 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;\"\u003e55 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=\"\/ru\/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;\"\u003e100W 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=\"\/ru\/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=\"\/ru\/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;\"\u003eThe DXV is a balanced VDA — tuner and RF choke must maintain a floating balanced feed. See the \u003ca style=\"color: #b8960c; text-decoration: none;\" href=\"\/ru\/blogs\/news\/correctly-configuring-the-flagpole-tuner-and-balun-feed-system\"\u003eTuner \u0026amp; Balun Configuration Guide →\u003c\/a\u003e\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;\"\u003e155 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=\"\/ru\/pages\/how-to-order-a-greyline-performance-antenna-system-a-check-list\"\u003eSelection Guide\u003c\/a\u003e\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=\"\/ru\/collections\/vertical-antenna\/products\/16-foot-vertical-antenna\"\u003eDXV16 →\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cstyle\u003e\n.gp-faq details{border:1px solid #DDD8CC;margin:0 0 8px 0;}\n.gp-faq summary{padding:14px 18px;font-size:14px;font-weight:700;color:#1a1a1a;cursor:pointer;list-style:none;display:flex;justify-content:space-between;align-items:center;}\n.gp-faq summary::-webkit-details-marker{display:none;}\n.gp-faq summary::after{content:\"+\";color:#B8960C;font-size:18px;font-weight:400;flex-shrink:0;margin-left:16px;}\n.gp-faq details[open] summary::after{content:\"-\";}\n.gp-faq details[open] summary{color:#B8960C;}\n.gp-faq .fb{padding:0 18px 16px 18px;border-top:1px solid #DDD8CC;}\n.gp-faq .fb p{font-size:14px;color:#555;line-height:1.65;margin:12px 0 0 0;}\n.gp-faq .fb a{color:#B8960C;text-decoration:none;}\n.gp-faq .fc{font-size:13px;color:#555;margin:4px 0 0 0;}\n.gp-faq .fh{font-size:13px;color:#B8960C;font-weight:700;margin:8px 0 0 0;}\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\u003cstrong style=\"color: #1a1a1a;\"\u003eDXV or DXF?\u003c\/strong\u003e Same VDA physics. The \u003ca style=\"color: #b8960c; text-decoration: none;\" href=\"\/ru\/products\/12-foot-flagpole-antenna\"\u003eDXF12\u003c\/a\u003e 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.\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;\"\u003e155 \u003cspan style=\"font-size: 15px; font-weight: 400; color: #b0b0b0;\"\u003eMPH\u003c\/span\u003e\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: bold; 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\u003cstrong style=\"color: #1a1a1a;\"\u003eOutside:\u003c\/strong\u003e 2\" OD, full length — uniform profile top to bottom. Clean. Sleek. Invisible as an antenna. \u003cstrong style=\"color: #1a1a1a;\"\u003eInside:\u003c\/strong\u003e wall graduates where the physics demands it — \u003cstrong style=\"color: #1a1a1a;\"\u003e0.125\" lower 30%\u003c\/strong\u003e where base bending stress peaks, \u003cstrong style=\"color: #1a1a1a;\"\u003e0.065\" upper 70%\u003c\/strong\u003e where reducing mass at height lowers dynamic wind loads. Zero plastic. All-metal. McMaster-Carr hardware throughout.\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; color: #444; line-height: 1.75; margin: 0 0 10px;\"\u003eAt 12 feet, the Greyline VDA presents \u003cstrong style=\"color: #1a1a1a;\"\u003e2 square feet\u003c\/strong\u003e 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.\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; color: #444; line-height: 1.75; margin: 0;\"\u003eEvery Greyline wind rating is derived from ASCE 7-10 structural engineering values — actual geometry, actual math, published methodology. \u003cstrong style=\"color: #1a1a1a;\"\u003eA wind rating without a cited standard is a guess dressed as a spec.\u003c\/strong\u003e Ask any competitor which standard they used. If they can't cite one, you have your answer.\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;\"\u003eSame 6061-T6 aircraft aluminum. Same ASCE 7-10 wind ratings. Same VDA geometry. Same 7-year guarantee. \u003cstrong style=\"color: #ffffff;\"\u003eThreaded transition sections machined directly into the metal\u003c\/strong\u003e — self-aligning, no through-bolting, less total weight.\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; color: #e8e8e8; line-height: 1.75; margin: 0;\"\u003eManufacturing expanding. Things coming this year. \u003cstrong style=\"color: #ffffff;\"\u003eWatch this space.\u003c\/strong\u003e\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\u003eWe ship from stock — same or next business day when available. Peak season may carry 1–3 week queue. Current lead time always posted on our \u003ca href=\"\/ru\/pages\/order-status-updates-for-greyline-performance\"\u003eOrder Status page →\u003c\/a\u003e Call 435-200-4902 for a specific ship date.\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 open=\"\"\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\u003eWe recommend the \u003ca href=\"\/ru\/products\/greyline-antenna-tuner-ldg-rt100-atu\"\u003eLDG RT-100 remote ATU\u003c\/a\u003e mounted at the antenna base — 125W, weatherproof, low cost, and a great fit for most operators. 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. The antenna itself handles any power and any mode without restriction. \u003ca href=\"\/ru\/collections\/bundle-dx-flagpole-antenna-remote-antenna-tuner\"\u003eAntenna + ATU bundles →\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails open=\"\"\u003e\n\u003csummary\u003eIs the ATU bundle the best value?\u003c\/summary\u003e\n\u003cdiv class=\"fb\"\u003e\n\u003cp\u003eYes. Every DXV is available bundled with the LDG RT-100 at a discount. Free shipping USA. \u003ca href=\"\/ru\/collections\/bundle-dx-flagpole-antenna-remote-antenna-tuner\"\u003eShop all bundles →\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails open=\"\"\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\u003eAssembly documents at \u003ca href=\"\/ru\/pages\/assembly-documents\"\u003eSetup \u0026amp; Manuals →\u003c\/a\u003e Questions during install? Call 435-200-4902.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails open=\"\"\u003e\n\u003csummary\u003eWhat does the 7-Year Guarantee cover?\u003c\/summary\u003e\n\u003cdiv class=\"fb\"\u003e\n\u003cp\u003eSeven 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 \u003ca href=\"\/ru\/policies\/refund-policy\"\u003e7-Year Warranty Policy →\u003c\/a\u003e\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;\"\u003e\u003ca href=\"\/ru\/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 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","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;\"\u003eThe 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? \u003ca href=\"\/ru\/collections\/hoa-flagpole-antenna\/products\/20-foot-flagpole-antenna\" style=\"color:#b8960c;text-decoration:none;\"\u003eSee the DXF20 →\u003c\/a\u003e\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;\"\u003e115 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 · Verified Owner · \u003ca href=\"\/ru\/blogs\/news\/kj7cwq-16-dx-flagpole-and-sgc-237-easily-works-160-6m-pictures\" style=\"color:#B8960C;text-decoration:none;\"\u003eFull install report →\u003c\/a\u003e\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;\"\u003ePhysics foundation: Zavrel W7SX · \u003cem\u003eAntenna Physics: An Introduction\u003c\/em\u003e (ARRL, 2020) · Kraus W8JK · \u003cem\u003eAntennas\u003c\/em\u003e (McGraw-Hill) · \u003ca style=\"color: #b8960c; text-decoration: none;\" href=\"\/ru\/pages\/what-is-a-vda-vertical-dipole-antenna\"\u003eDeep dive: What is a VDA? →\u003c\/a\u003e\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=\"\/ru\/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;\"\u003e155 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;\"\u003e115 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;\"\u003e90 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;\"\u003e70 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;\"\u003e55 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=\"\/ru\/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;\"\u003e100W 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=\"\/ru\/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=\"\/ru\/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;\"\u003eThe DXV is a balanced VDA — tuner and RF choke must maintain a floating balanced feed. See the \u003ca style=\"color: #b8960c; text-decoration: none;\" href=\"\/ru\/blogs\/news\/correctly-configuring-the-flagpole-tuner-and-balun-feed-system\"\u003eTuner \u0026amp; Balun Configuration Guide →\u003c\/a\u003e\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;\"\u003e115 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=\"\/ru\/collections\/vertical-antenna\/products\/12-foot-vertical-antenna\"\u003e← DXV12\u003c\/a\u003e\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=\"\/ru\/pages\/how-to-order-a-greyline-performance-antenna-system-a-check-list\"\u003eSelection Guide\u003c\/a\u003e\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=\"\/ru\/collections\/vertical-antenna\/products\/20-foot-vertical-antenna\"\u003eDXV20 →\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cstyle\u003e\n.gp-faq details{border:1px solid #DDD8CC;margin:0 0 8px 0;}\n.gp-faq summary{padding:14px 18px;font-size:14px;font-weight:700;color:#1a1a1a;cursor:pointer;list-style:none;display:flex;justify-content:space-between;align-items:center;}\n.gp-faq summary::-webkit-details-marker{display:none;}\n.gp-faq summary::after{content:\"+\";color:#B8960C;font-size:18px;font-weight:400;flex-shrink:0;margin-left:16px;}\n.gp-faq details[open] summary::after{content:\"-\";}\n.gp-faq details[open] summary{color:#B8960C;}\n.gp-faq .fb{padding:0 18px 16px 18px;border-top:1px solid #DDD8CC;}\n.gp-faq .fb p{font-size:14px;color:#555;line-height:1.65;margin:12px 0 0 0;}\n.gp-faq .fb a{color:#B8960C;text-decoration:none;}\n.gp-faq .fc{font-size:13px;color:#555;margin:4px 0 0 0;}\n.gp-faq .fh{font-size:13px;color:#B8960C;font-weight:700;margin:8px 0 0 0;}\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\u003cstrong style=\"color: #1a1a1a;\"\u003eDXV or DXF?\u003c\/strong\u003e Same VDA core. The \u003ca style=\"color: #b8960c; text-decoration: none;\" href=\"\/ru\/products\/16-foot-flagpole-antenna\"\u003eDXF16\u003c\/a\u003e adds flagpole hardware, flag kit, and HOA Architectural Brief. Choose DXV for rooftop, deck, or any non-HOA install.\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;\"\u003e115 \u003cspan style=\"font-size: 15px; font-weight: 400; color: #b0b0b0;\"\u003eMPH\u003c\/span\u003e\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\n  \u003cp style=\"font-size:14px; color:#444; line-height:1.75; margin:0 0 10px;\"\u003e\u003cstrong style=\"color:#1a1a1a;\"\u003eOutside:\u003c\/strong\u003e 2\" OD, full length — uniform profile top to bottom. Clean. Sleek. Invisible as an antenna. \u003cstrong style=\"color:#1a1a1a;\"\u003eInside:\u003c\/strong\u003e wall graduates where the physics demands it — \u003cstrong style=\"color:#1a1a1a;\"\u003e0.125\" lower 30%\u003c\/strong\u003e where base bending stress peaks, \u003cstrong style=\"color:#1a1a1a;\"\u003e0.065\" upper 70%\u003c\/strong\u003e where reducing mass at height lowers dynamic wind loads. Zero plastic. All-metal. McMaster-Carr hardware throughout.\u003c\/p\u003e\n\n  \u003cp style=\"font-size:14px; color:#444; line-height:1.75; margin:0 0 10px;\"\u003eAt 16 feet, the Greyline VDA presents \u003cstrong style=\"color:#1a1a1a;\"\u003e2.67 square feet\u003c\/strong\u003e 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.\u003c\/p\u003e\n\n  \u003cp style=\"font-size:14px; color:#444; line-height:1.75; margin:0;\"\u003eEvery Greyline wind rating is derived from ASCE 7-10 structural engineering values — actual geometry, actual math, published methodology. \u003cstrong style=\"color:#1a1a1a;\"\u003eA wind rating without a cited standard is a guess dressed as a spec.\u003c\/strong\u003e Ask any competitor which standard they used. If they can't cite one, you have your answer.\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;\"\u003eSame engineering. Same guarantee. \u003cstrong style=\"color: #ffffff;\"\u003eThreaded metal-to-metal section marriages\u003c\/strong\u003e — no compression collars, no through-bolting. Cleaner joint, less weight, same ASCE 7-10 wind ratings.\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; color: #e8e8e8; line-height: 1.75; margin: 0;\"\u003eManufacturing expanding. Things coming this year. \u003cstrong style=\"color: #ffffff;\"\u003eWatch this space.\u003c\/strong\u003e\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\u003eWe ship from stock — same or next business day when available. Peak season may carry 1–3 week queue. Current lead time always posted on our \u003ca href=\"\/ru\/pages\/order-status-updates-for-greyline-performance\"\u003eOrder Status page →\u003c\/a\u003e Call 435-200-4902 for a specific ship date.\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\u003eWe recommend the \u003ca href=\"\/ru\/products\/greyline-antenna-tuner-ldg-rt100-atu\"\u003eLDG RT-100 remote ATU\u003c\/a\u003e mounted at the antenna base — 125W, weatherproof, low cost, and a great fit for most operators. 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. The antenna itself handles any power and any mode without restriction. \u003ca href=\"\/ru\/collections\/bundle-dx-flagpole-antenna-remote-antenna-tuner\"\u003eAntenna + ATU bundles →\u003c\/a\u003e\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\u003eYes. Every DXV is available bundled with the LDG RT-100 at a discount. Free shipping USA. \u003ca href=\"\/ru\/collections\/bundle-dx-flagpole-antenna-remote-antenna-tuner\"\u003eShop all bundles →\u003c\/a\u003e\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\u003eAssembly documents at \u003ca href=\"\/ru\/pages\/assembly-documents\"\u003eSetup \u0026amp; Manuals →\u003c\/a\u003e Questions during install? Call 435-200-4902.\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\u003eSeven 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 \u003ca href=\"\/ru\/policies\/refund-policy\"\u003e7-Year Warranty Policy →\u003c\/a\u003e\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;\"\u003e\u003ca href=\"\/ru\/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 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","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 — 20 feet of aperture, strong 40 and 80 meter performance, same OCF VDA physics as the full DXF lineup. No flagpole hardware — clean bare vertical for rooftop, deck, and open-yard installations. No radials, no ground system, 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;\"\u003eThe 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? \u003ca href=\"\/ru\/collections\/hoa-flagpole-antenna\/products\/20-foot-flagpole-antenna\" style=\"color:#b8960c;text-decoration:none;\"\u003eSee the DXF20 →\u003c\/a\u003e\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;\"\u003e90 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 — 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 · Verified Owner · \u003ca href=\"\/ru\/pages\/aerospace-engineer-case-study\" style=\"color:#B8960C;text-decoration:none;\"\u003eFull case study →\u003c\/a\u003e\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 · Verified Owner · \u003ca href=\"\/ru\/blogs\/news\/k3wa-clean-sweep-cw-sweepstakes-20-dx-flagpole\" style=\"color:#B8960C;text-decoration:none;\"\u003eFull contest report →\u003c\/a\u003e\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 5\/8λ geometry on 10 meters — strong low-angle radiation favorable for DX propagation.\u003c\/p\u003e\n\u003cp style=\"font-size: 13px; color: #888; margin: 0 0 16px 0;\"\u003ePhysics foundation: Zavrel W7SX · \u003cem\u003eAntenna Physics: An Introduction\u003c\/em\u003e (ARRL, 2020) · Kraus W8JK · \u003cem\u003eAntennas\u003c\/em\u003e (McGraw-Hill) · \u003ca href=\"\/ru\/pages\/what-is-a-vda-vertical-dipole-antenna\" style=\"color: #b8960c; text-decoration: none;\"\u003eDeep dive: What is a VDA? →\u003c\/a\u003e\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=\"\/ru\/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=\"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;\"\u003e155 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;\"\u003e115 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;\"\u003e90 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;\"\u003e70 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;\"\u003e55 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 href=\"\/ru\/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;\"\u003e100W weatherproof remote tuner at the feedpoint. DC over coax. One-button tuning 160–6M. Bundle and save.\u003c\/p\u003e\n\u003ca href=\"\/ru\/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=\"\/ru\/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;\"\u003eThe DXV is a balanced VDA — tuner and RF choke must maintain a floating balanced feed. See the \u003ca href=\"\/ru\/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\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;\"\u003e90 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 href=\"\/ru\/collections\/vertical-antenna\/products\/16-foot-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;\"\u003e← DXV16\u003c\/a\u003e\u003ca href=\"\/ru\/pages\/how-to-order-a-greyline-performance-antenna-system-a-check-list\" 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;\"\u003eSelection Guide\u003c\/a\u003e\u003ca href=\"\/ru\/collections\/vertical-antenna\/products\/24-foot-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;\"\u003eDXV24 →\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cstyle\u003e\n.gp-faq details{border:1px solid #DDD8CC;margin:0 0 8px 0;}\n.gp-faq summary{padding:14px 18px;font-size:14px;font-weight:700;color:#1a1a1a;cursor:pointer;list-style:none;display:flex;justify-content:space-between;align-items:center;}\n.gp-faq summary::-webkit-details-marker{display:none;}\n.gp-faq summary::after{content:\"+\";color:#B8960C;font-size:18px;font-weight:400;flex-shrink:0;margin-left:16px;}\n.gp-faq details[open] summary::after{content:\"-\";}\n.gp-faq details[open] summary{color:#B8960C;}\n.gp-faq .fb{padding:0 18px 16px 18px;border-top:1px solid #DDD8CC;}\n.gp-faq .fb p{font-size:14px;color:#555;line-height:1.65;margin:12px 0 0 0;}\n.gp-faq .fb a{color:#B8960C;text-decoration:none;}\n.gp-faq .fc{font-size:13px;color:#555;margin:4px 0 0 0;}\n.gp-faq .fh{font-size:13px;color:#B8960C;font-weight:700;margin:8px 0 0 0;}\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\u003cstrong style=\"color:#1a1a1a;\"\u003eDXV or DXF?\u003c\/strong\u003e Same VDA core. The \u003ca href=\"\/ru\/products\/20-foot-flagpole-antenna\" style=\"color:#B8960C; text-decoration:none;\"\u003eDXF20\u003c\/a\u003e adds flagpole hardware, flag kit, and HOA documents. DXV20 is the clean bare vertical — rooftop, deck, open yard, any surface.\u003c\/p\u003e\n\u003c\/div\u003e\n\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\n  \u003cp style=\"font-size:14px; color:#444; line-height:1.75; margin:0 0 10px;\"\u003e\u003cstrong style=\"color:#1a1a1a;\"\u003eOutside:\u003c\/strong\u003e 2\" OD, full length — uniform profile top to bottom. Clean. Sleek. Invisible as an antenna. \u003cstrong style=\"color:#1a1a1a;\"\u003eInside:\u003c\/strong\u003e wall graduates where the physics demands it — \u003cstrong style=\"color:#1a1a1a;\"\u003e0.125\" lower 30%\u003c\/strong\u003e where base bending stress peaks, \u003cstrong style=\"color:#1a1a1a;\"\u003e0.065\" upper 70%\u003c\/strong\u003e where reducing mass at height lowers dynamic wind loads. Zero plastic. All-metal. McMaster-Carr hardware throughout.\u003c\/p\u003e\n\n  \u003cp style=\"font-size:14px; color:#444; line-height:1.75; margin:0 0 10px;\"\u003eAt 20 feet, the Greyline VDA presents \u003cstrong style=\"color:#1a1a1a;\"\u003e3.33 square feet\u003c\/strong\u003e 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.\u003c\/p\u003e\n\n  \u003cp style=\"font-size:14px; color:#444; line-height:1.75; margin:0;\"\u003eEvery Greyline wind rating is derived from ASCE 7-10 structural engineering values — actual geometry, actual math, published methodology. \u003cstrong style=\"color:#1a1a1a;\"\u003eA wind rating without a cited standard is a guess dressed as a spec.\u003c\/strong\u003e Ask any competitor which standard they used. If they can't cite one, you have your answer.\u003c\/p\u003e\n\u003c\/div\u003e\n\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;\"\u003eSame 6061-T6 aircraft aluminum. Same ASCE 7-10 wind ratings. Same VDA geometry. Same 7-year guarantee. \u003cstrong style=\"color:#ffffff;\"\u003eThreaded transition sections machined directly into the metal\u003c\/strong\u003e — self-aligning, no through-bolting, less total weight.\u003c\/p\u003e\n  \u003cp style=\"font-size:14px; color:#e8e8e8; line-height:1.75; margin:0;\"\u003eManufacturing expanding. Things coming this year. \u003cstrong style=\"color:#ffffff;\"\u003eWatch this space.\u003c\/strong\u003e\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\u003eWe ship from stock — same or next business day when available. Peak season may carry 1–3 week queue. Current lead time always posted on our \u003ca href=\"\/ru\/pages\/order-status-updates-for-greyline-performance\"\u003eOrder Status page →\u003c\/a\u003e Call 435-200-4902 for a specific ship date.\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\u003eWe recommend the \u003ca href=\"\/ru\/products\/greyline-antenna-tuner-ldg-rt100-atu\"\u003eLDG RT-100 remote ATU\u003c\/a\u003e mounted at the antenna base — 125W, weatherproof, low cost, and a great fit for most operators. 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. The antenna itself handles any power and any mode without restriction. \u003ca href=\"\/ru\/collections\/bundle-dx-flagpole-antenna-remote-antenna-tuner\"\u003eAntenna + ATU bundles →\u003c\/a\u003e\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\u003eYes. Every DXV is available bundled with the LDG RT-100 at a discount. Free shipping USA. \u003ca href=\"\/ru\/collections\/bundle-dx-flagpole-antenna-remote-antenna-tuner\"\u003eShop all bundles →\u003c\/a\u003e\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\u003eAssembly documents at \u003ca href=\"\/ru\/pages\/assembly-documents\"\u003eSetup \u0026amp; Manuals →\u003c\/a\u003e Questions during install? Call 435-200-4902.\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\u003eSeven 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 \u003ca href=\"\/ru\/policies\/refund-policy\"\u003e7-Year Warranty Policy →\u003c\/a\u003e\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;\"\u003e\u003ca href=\"\/ru\/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 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","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":"\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:700; 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:700; color:#1a1a1a; line-height:1.25; margin:0 0 14px 0;\"\u003eThe 24' DXV — Maximum Performance. Minimum Footprint.\u003c\/h2\u003e\n  \u003cp style=\"font-size:15px; color:#555; line-height:1.65; margin:0 0 20px 0;\"\u003e\n    The DXV24 is where serious DX operators land when a flagpole isn't the goal but every dB still matters. At 24 feet the VDA design achieves near 5\/8λ on the upper HF bands, delivering up to 3.5 dBi of low-angle gain from a single freestanding radiator. Return current flows through the lower element, not through soil, significantly reducing ground coupling with no radial field required. Tower mount, rooftop, remote site, rapid deployment — the DXV24 performs in any environment.\n  \u003c\/p\u003e\n\u003c\/div\u003e\n\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:700; color:#B8960C; text-transform:uppercase; letter-spacing:1px;\"\u003eField Report\u003c\/p\u003e\n  \u003cp style=\"margin:0 0 8px 0; font-size:15px; line-height:1.6; color:#e8e8e8;\"\u003e\"My radio came alive. I've already connected with Australia, Japan, and all over the states. What a night and day difference!\"\u003c\/p\u003e\n  \u003cp style=\"margin:0; font-size:12px; color:#aaa;\"\u003e— Bill Cassidy · 24' Vertical + Remote Tuner · Verified Owner\u003c\/p\u003e\n\u003c\/div\u003e\n\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:700; 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:700; 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. Push a button.\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:700; 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:700; color:#1a1a1a; margin:0 0 4px 0;\"\u003e70 MPH\u003c\/p\u003e\n    \u003cp style=\"font-size:13px; color:#555; margin:0;\"\u003eASCE 7-10 engineered. 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:700; 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:700; 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. 100% satisfaction.\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 — 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 · \u003ca href=\"\/ru\/blogs\/news\/k3wa-24-dx-flagpole-160m-contest-pvrc\" style=\"color:#B8960C;text-decoration:none;\"\u003eFull contest report →\u003c\/a\u003e\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“I ran a defense antenna company for 7 years. I am very impressed with the look, quality, machining, and part fit. \u003cstrong style=\"color:#ffffff;\"\u003eIt is a professional-grade product.\u003c\/strong\u003e” HOA approved in Colorado. 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 · Amateur Extra · Colorado HOA · \u003ca href=\"\/ru\/pages\/aerospace-engineer-case-study\" style=\"color:#B8960C;text-decoration:none;\"\u003eFull case study →\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"background:#1A1A1A; border-left:4px solid #B8960C; padding:28px 32px; margin:32px 0; border-radius:4px;\"\u003e\n\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\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\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\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\n\u003cp style=\"font-size:14px; color:#e8e8e8; line-height:1.65; margin:0;\"\u003e\u003cstrong style=\"color:#ffffff;\"\u003eWhy this matters:\u003c\/strong\u003e 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.\u003c\/p\u003e\n\n\u003c\/div\u003e\n\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\u003ca href=\"\/ru\/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;\"\u003eOpen the Calculator →\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\n\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:700; margin:0 0 8px 0;\"\u003eThe Physics\u003c\/p\u003e\n  \u003ch3 style=\"font-size:19px; font-weight:700; 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. Return current flows through the lower element — not through the earth. This design significantly reduces ground coupling and removes your performance's dependency on a soil-based return path. Proper current distribution raises radiation resistance, improving efficiency without a single buried wire.\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) · Kraus W8JK · \u003cem\u003eAntennas\u003c\/em\u003e (McGraw-Hill)  ·  \u003ca href=\"\/ru\/pages\/what-is-a-vda-vertical-dipole-antenna\" style=\"color:#B8960C; text-decoration:none;\"\u003eDeep dive: What is a VDA? →\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\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:700; margin:0 0 8px 0;\"\u003eIn the Box\u003c\/p\u003e\n  \u003ch3 style=\"font-size:19px; font-weight:700; 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:700; 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 VDA Radiator\u003c\/li\u003e\n        \u003cli\u003eRF Choke \u0026amp; Precision Feedline Hardware\u003c\/li\u003e\n        \u003cli\u003eGround Sleeve Kit (in-ground + structure-compatible)\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    \u003cdiv style=\"background:#fff; border:1px solid #DDD8CC; border-top:3px solid #B8960C; padding:18px;\"\u003e\n      \u003cp style=\"font-size:12px; font-weight:700; color:#B8960C; text-transform:uppercase; letter-spacing:1px; margin:0 0 10px 0;\"\u003eMount Options\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 (ground sleeve)\u003c\/li\u003e\n        \u003cli\u003eTower or mast mount\u003c\/li\u003e\n        \u003cli\u003eRoof or deck mount\u003c\/li\u003e\n        \u003cli\u003eDock or bulkhead mount\u003c\/li\u003e\n        \u003cli\u003eTilt-mount for rapid deployment\u003c\/li\u003e\n      \u003c\/ul\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\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:700; margin:0 0 8px 0;\"\u003eStructural Engineering\u003c\/p\u003e\n  \u003ch3 style=\"font-size:19px; font-weight:700; 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;\"\u003eThe DXV24 is engineered to ASCE 7-10 structural standards. No flag load means the full wind rating applies in all conditions.\u003c\/p\u003e\n  \u003ctable style=\"width:100%; border-collapse:collapse; font-size:14px; margin:0 0 10px 0;\"\u003e\n    \u003cthead\u003e\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\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;\"\u003e155 MPH\u003c\/td\u003e\n\u003ctd style=\"padding:10px 14px; color:#888;\"\u003eASCE 7-10\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd style=\"padding:10px 14px; color:#888;\"\u003eDXV16\u003c\/td\u003e\n\u003ctd style=\"padding:10px 14px; color:#888;\"\u003e115 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;\"\u003e90 MPH\u003c\/td\u003e\n\u003ctd style=\"padding:10px 14px; color:#888;\"\u003eASCE 7-10\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd style=\"padding:10px 14px; font-weight:700; color:#B8960C;\"\u003eDXV24\u003c\/td\u003e\n\u003ctd style=\"padding:10px 14px;\"\u003e70 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;\"\u003e55 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. No flag load — single rating applies in all conditions.\u003c\/p\u003e\n\u003c\/div\u003e\n\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:700; margin:0 0 8px 0;\"\u003eTake It Further\u003c\/p\u003e\n  \u003ch3 style=\"font-size:19px; font-weight:700; 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:700; 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;\"\u003ePushes the 24' into full DX territory on 160–40M. Up to +3.5 dBi. Lightweight, stealthy.\u003c\/p\u003e\n      \u003ca href=\"\/ru\/products\/9-foot-whip-for-greyline-antennas\" style=\"font-size:12px; font-weight:700; 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:700; color:#B8960C; text-transform:uppercase; letter-spacing:1px; margin:0 0 6px 0;\"\u003eLDG RT-100 Remote ATU\u003c\/p\u003e\n      \u003cp style=\"font-size:14px; color:#555; line-height:1.6; margin:0 0 8px 0;\"\u003e100W weatherproof remote tuner. DC over coax. One-button tuning across 160–6M. Bundle and save.\u003c\/p\u003e\n      \u003ca href=\"\/ru\/collections\/bundle-dx-flagpole-antenna-remote-antenna-tuner\" style=\"font-size:12px; font-weight:700; 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:700; color:#B8960C; text-transform:uppercase; letter-spacing:1px; margin:0 0 6px 0;\"\u003eGo All-In: DXV28\u003c\/p\u003e\n      \u003cp style=\"font-size:14px; color:#555; line-height:1.6; margin:0 0 8px 0;\"\u003eFour more feet means meaningful low-band gain. The flagship vertical for serious DXers.\u003c\/p\u003e\n      \u003ca href=\"\/ru\/collections\/vertical-antenna\/products\/28-hf-vertical-antenna-no-radials-ocf-multiband-vertical-dipole-160-6m\" style=\"font-size:12px; font-weight:700; color:#B8960C; text-decoration:none; text-transform:uppercase; letter-spacing:1px;\"\u003eSee DXV28 →\u003c\/a\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\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=\"margin:0 0 4px 0; font-size:12px; font-weight:700; color:#B8960C; text-transform:uppercase; letter-spacing:1px;\"\u003eWant a Flagpole Version?\u003c\/p\u003e\n  \u003cp style=\"margin:0 0 8px 0; font-size:14px; color:#555; line-height:1.6;\"\u003eThe DXF24 adds flag hardware, an HOA Architectural Brief, and Property Integrity Letter — same VDA core, HOA-ready packaging.\u003c\/p\u003e\n  \u003ca href=\"\/ru\/collections\/hoa-flagpole-antenna\/products\/24-foot-flagpole-antenna\" style=\"font-size:12px; font-weight:700; color:#B8960C; text-decoration:none; text-transform:uppercase; letter-spacing:1px;\"\u003eSee the DXF24 →\u003c\/a\u003e\n\u003c\/div\u003e\n\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:700; color:#B8960C; text-transform:uppercase; letter-spacing:1px; margin:0 0 6px 0;\"\u003eGrounding Note\u003c\/p\u003e\n  \u003cp style=\"font-size:13px; color:#555; margin:0; line-height:1.6;\"\u003eFollow ARRL RF grounding guidelines. The DXV is a balanced VDA — tuner and RF choke must maintain a floating balanced feed. See the \u003ca href=\"\/ru\/blogs\/news\/correctly-configuring-the-flagpole-tuner-and-balun-feed-system\" style=\"color:#B8960C; text-decoration:none;\"\u003eTuning \u0026amp; Feed System Guide →\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\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:700; margin:0 0 8px 0;\"\u003eSpecs \u0026amp; Shipping\u003c\/p\u003e\n  \u003ctable style=\"width:100%; border-collapse:collapse; font-size:14px;\"\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:700;\"\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:700;\"\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:700;\"\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:700;\"\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:700;\"\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:700;\"\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:700;\"\u003e70 MPH — ASCE 7-10\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:10px 14px; color:#555;\"\u003eStructural Standard\u003c\/td\u003e\n\u003ctd style=\"padding:10px 14px; font-weight:700;\"\u003eASCE 7-10 Engineered\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background:#f9f8f6;\"\u003e\n\u003ctd style=\"padding:10px 14px; color:#555;\"\u003eFlag Kit Included\u003c\/td\u003e\n\u003ctd style=\"padding:10px 14px; font-weight:700;\"\u003eNo — see DXF24 for flagpole version\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:700;\"\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:700;\"\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:700;\"\u003e7-Year Performance Guarantee\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\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=\"\/ru\/pages\/how-to-order-a-greyline-performance-antenna-system-a-check-list\" style=\"display:block; text-align:center; background:#fff; color:#1a1a1a; border:1px solid #DDD8CC; padding:11px 16px; font-size:12px; font-weight:700; text-transform:uppercase; letter-spacing:1px; text-decoration:none;\"\u003eAntenna Selection Guide\u003c\/a\u003e\n  \u003ca href=\"\/ru\/pages\/antenna-comparisons\" style=\"display:block; text-align:center; background:#fff; color:#1a1a1a; border:1px solid #DDD8CC; padding:11px 16px; font-size:12px; font-weight:700; text-transform:uppercase; letter-spacing:1px; text-decoration:none;\"\u003eCompare All Antennas\u003c\/a\u003e\n  \u003ca href=\"\/ru\/pages\/contact\" style=\"display:block; text-align:center; background:#B8960C; color:#fff; padding:11px 16px; font-size:12px; font-weight:700; text-transform:uppercase; letter-spacing:1px; text-decoration:none;\"\u003eQuestions? Contact Us\u003c\/a\u003e\n\u003c\/div\u003e\n\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\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\u003cstrong style=\"color:#1a1a1a;\"\u003eDXV or DXF?\u003c\/strong\u003e The \u003ca href=\"\/ru\/products\/24-foot-flagpole-antenna\" style=\"color:#B8960C; text-decoration:none;\"\u003eDXF24\u003c\/a\u003e adds flagpole hardware, flag kit, HOA Architectural Brief, and Property Integrity Letter. Choose DXV for rooftop, commercial, POTA, or any non-HOA install.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"display:grid; grid-template-columns:1fr 1fr; gap:14px; margin:0 0 14px;\"\u003e\n\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:700; color:#ffffff; line-height:1; margin:0 0 4px;\"\u003e70 \u003cspan style=\"font-size:15px; font-weight:400; color:#b0b0b0;\"\u003eMPH\u003c\/span\u003e\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;\"\u003eA longer moment arm means a lower rating — physics, not weakness. Choose the 24' for larger lots, rooftop installs, and sheltered sites where the low-band gain step justifies the trade.\u003c\/p\u003e\n  \u003c\/div\u003e\n\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:700; color:#ffffff; line-height:1; margin:0 0 4px;\"\u003e12M\u003c\/p\u003e\n    \u003cp style=\"font-size:11px; color:#b0b0b0; margin:0 0 10px;\"\u003e17M sweet spot with 9' whip\u003c\/p\u003e\n    \u003cp style=\"font-size:13px; color:#e8e8e8; line-height:1.6; margin:0;\"\u003e5\/8λ on 12M bare. Add the 9' whip: 17M sweet spot + 1\/2λ on 20M simultaneously. Most bandwidth-efficient combination in the lineup.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n\u003c\/div\u003e\n\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\n  \u003cp style=\"font-size:14px; color:#444; line-height:1.75; margin:0 0 10px;\"\u003e\u003cstrong style=\"color:#1a1a1a;\"\u003eOutside:\u003c\/strong\u003e 2\" OD, full length — uniform profile top to bottom. Clean. Sleek. Invisible as an antenna. \u003cstrong style=\"color:#1a1a1a;\"\u003eInside:\u003c\/strong\u003e wall graduates where the physics demands it — \u003cstrong style=\"color:#1a1a1a;\"\u003e0.125\" lower 30%\u003c\/strong\u003e where base bending stress peaks, \u003cstrong style=\"color:#1a1a1a;\"\u003e0.065\" upper 70%\u003c\/strong\u003e where reducing mass at height lowers dynamic wind loads. Zero plastic. All-metal. McMaster-Carr hardware throughout.\u003c\/p\u003e\n\n  \u003cp style=\"font-size:14px; color:#444; line-height:1.75; margin:0 0 10px;\"\u003eAt 24 feet, the Greyline VDA presents \u003cstrong style=\"color:#1a1a1a;\"\u003e4 square feet\u003c\/strong\u003e of wind surface (height × OD). A competing flagpole antenna at this height uses approximately 4\" OD — a number their manufacturer declines to publish, inferred from their own base insulator dimensions. At 4\" OD and 24 feet, that pole presents roughly \u003cstrong style=\"color:#1a1a1a;\"\u003e8 square feet\u003c\/strong\u003e of wind surface. Exactly double. Wind force scales with projected area linearly and with velocity squared. That same competitor claims a higher unflagged wind rating than the Greyline at this height — without citing any engineering methodology.\u003c\/p\u003e\n\n  \u003c!-- Physics callout — dark box --\u003e\n  \u003cdiv style=\"background:#1a1a1a; padding:16px 20px; margin:12px 0;\"\u003e\n    \u003cp style=\"font-size:13px; color:#B8960C; font-weight:700; text-transform:uppercase; letter-spacing:1px; margin:0 0 8px;\"\u003eThe Math That Doesn't Add Up\u003c\/p\u003e\n    \u003cp style=\"font-size:13px; color:#e8e8e8; line-height:1.7; margin:0 0 8px;\"\u003eA pole with twice the projected area at the same height and moment arm cannot honestly claim a higher wind rating than a pole with half the area — not under ASCE 7-10 methodology. Add uniform thick wall construction throughout (more mass at height, greater dynamic fatigue loading on every oscillation cycle) and the physics moves further in the wrong direction.\u003c\/p\u003e\n    \u003cp style=\"font-size:13px; color:#e8e8e8; line-height:1.7; margin:0;\"\u003eTheir wind rating cites no standard. Their OD is not published. Their transformer ships separately, 10 days after the antenna. \u003cstrong style=\"color:#ffffff;\"\u003eThe math is published here because it holds up.\u003c\/strong\u003e\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cp style=\"font-size:14px; color:#444; line-height:1.75; margin:8px 0 0;\"\u003eEvery Greyline wind rating is derived from ASCE 7-10 structural engineering values — actual geometry, actual math, published methodology. \u003cstrong style=\"color:#1a1a1a;\"\u003eA wind rating without a cited standard is a guess dressed as a spec.\u003c\/strong\u003e Ask any competitor which standard they used. If they can't cite one, you have your answer.\u003c\/p\u003e\n\u003c\/div\u003e\n\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;\"\u003eSame 6061-T6 aircraft aluminum. Same ASCE 7-10 wind ratings. Same VDA geometry. Same 7-year guarantee. \u003cstrong style=\"color:#ffffff;\"\u003eThreaded transition sections machined directly into the metal\u003c\/strong\u003e — self-aligning, no through-bolting, less total weight.\u003c\/p\u003e\n  \u003cp style=\"font-size:14px; color:#e8e8e8; line-height:1.75; margin:0;\"\u003eFinite window. Manufacturing expanding. Things coming this year. \u003cstrong style=\"color:#ffffff;\"\u003eWatch this space.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003c!-- ============================================================\n     GREYLINE PERFORMANCE — PRODUCT PAGE FAQ BLOCK\n     Reusable — paste at bottom of all 10 DXF + DXV product pages\n     Above the sign-off line, below the specs table\n     ============================================================ --\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\u003c!-- Q1 — AVAILABILITY \u0026 LEAD TIME --\u003e\n\u003cdetails style=\"border: 1px solid #DDD8CC; margin: 0 0 8px 0;\"\u003e\n\u003csummary style=\"padding: 14px 18px; font-size: 14px; font-weight: bold; color: #1a1a1a; cursor: pointer; list-style: none; display: flex; justify-content: space-between; align-items: center;\"\u003eWhat's the current lead time and availability? \u003cspan style=\"color: #b8960c; font-size: 18px;\"\u003e+\u003c\/span\u003e\u003c\/summary\u003e\n\u003cdiv style=\"padding: 0 18px 16px 18px; border-top: 1px solid #DDD8CC;\"\u003e\n\u003cp style=\"font-size: 14px; color: #555; line-height: 1.65; margin: 12px 0 0 0;\"\u003eWe ship from stock on hand — same or next business day when available. During peak season we may carry a queue of 1–3 weeks. Current lead time is always posted on our \u003ca style=\"color: #b8960c; text-decoration: none;\" href=\"\/ru\/pages\/order-status-updates-for-greyline-performance\"\u003eOrder Status page →\u003c\/a\u003e — check there for the live picture. If you need a specific ship date, call us directly at 435-200-4902 and we'll tell you exactly where things stand that day.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c!-- Q2 — SHIPPING TIME --\u003e\n\u003cdetails style=\"border: 1px solid #DDD8CC; margin: 0 0 8px 0;\"\u003e\n\u003csummary style=\"padding: 14px 18px; font-size: 14px; font-weight: bold; color: #1a1a1a; cursor: pointer; list-style: none; display: flex; justify-content: space-between; align-items: center;\"\u003eHow long does shipping take once it leaves Sun Valley? \u003cspan style=\"color: #b8960c; font-size: 18px;\"\u003e+\u003c\/span\u003e\u003c\/summary\u003e\n\u003cdiv style=\"padding: 0 18px 16px 18px; border-top: 1px solid #DDD8CC;\"\u003e\n\u003cp style=\"font-size: 14px; color: #555; line-height: 1.65; margin: 12px 0 0 0;\"\u003eUSA shipping is included, free. Ground transit to most continental US locations runs 2–5 business days from Sun Valley, Idaho. You'll receive tracking the moment it ships. International orders ship at competitive rates — rates are calculated at checkout. For time-sensitive orders, contact us and we'll explore expedited options.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c!-- Q3 — WHAT'S INCLUDED --\u003e\n\u003cdetails style=\"border: 1px solid #DDD8CC; margin: 0 0 8px 0;\"\u003e\n\u003csummary style=\"padding: 14px 18px; font-size: 14px; font-weight: bold; color: #1a1a1a; cursor: pointer; list-style: none; display: flex; justify-content: space-between; align-items: center;\"\u003eWhat's included — do I need to source anything separately? \u003cspan style=\"color: #b8960c; font-size: 18px;\"\u003e+\u003c\/span\u003e\u003c\/summary\u003e\n\u003cdiv style=\"padding: 0 18px 16px 18px; border-top: 1px solid #DDD8CC;\"\u003e\n\u003cp style=\"font-size: 14px; color: #555; line-height: 1.65; margin: 12px 0 8px 0;\"\u003eEverything you need to assemble and mount is in the box. You supply coax and an ATU. That's it.\u003c\/p\u003e\n\u003cp style=\"font-size: 13px; color: #555; margin: 0 0 4px 0;\"\u003e✓ VDA Radiator (your chosen height)\u003c\/p\u003e\n\u003cp style=\"font-size: 13px; color: #555; margin: 0 0 4px 0;\"\u003e✓ RF Choke \u0026amp; Precision Feedline Hardware\u003c\/p\u003e\n\u003cp style=\"font-size: 13px; color: #555; margin: 0 0 4px 0;\"\u003e✓ Ground Sleeve Kit — in-ground, tower, roof, deck, dock compatible\u003c\/p\u003e\n\u003cp style=\"font-size: 13px; color: #555; margin: 0 0 4px 0;\"\u003e✓ Assembly Manual \u0026amp; Tuning Guide\u003c\/p\u003e\n\u003cp style=\"font-size: 13px; color: #555; margin: 0 0 4px 0;\"\u003e✓ 7-Year Performance Guarantee\u003c\/p\u003e\n\u003cp style=\"font-size: 13px; color: #b8960c; font-weight: bold; margin: 8px 0 0 0;\"\u003eDXF Flagpole models also include: USA-made flag kit hardware, HOA Architectural Brief, and Property Integrity Letter.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c!-- Q4 — ATU REQUIREMENT --\u003e\n\u003cdetails style=\"border: 1px solid #DDD8CC; margin: 0 0 8px 0;\"\u003e\n\u003csummary style=\"padding: 14px 18px; font-size: 14px; font-weight: bold; color: #1a1a1a; cursor: pointer; list-style: none; display: flex; justify-content: space-between; align-items: center;\"\u003eDo I need an ATU — will my radio's internal tuner work? \u003cspan style=\"color: #b8960c; font-size: 18px;\"\u003e+\u003c\/span\u003e\u003c\/summary\u003e\n\u003cdiv style=\"padding: 0 18px 16px 18px; border-top: 1px solid #DDD8CC;\"\u003e\n\u003cp style=\"font-size: 14px; color: #555; line-height: 1.65; margin: 12px 0 0 0;\"\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 transceiver internal tuners won't handle the full impedance range on every band. An external ATU resolves the match cleanly on all bands.\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; color: #555; line-height: 1.65; margin: 8px 0 0 0;\"\u003eWe recommend the \u003ca style=\"color: #b8960c; text-decoration: none;\" href=\"\/ru\/products\/greyline-antenna-tuner-ldg-rt100-atu\"\u003eLDG RT-100 remote ATU\u003c\/a\u003e mounted at the antenna base for maximum efficiency for 100W installations. A shack-side tuner also works well — use LMR-400 or larger coax to minimize losses. \u003ca style=\"color: #b8960c; text-decoration: none;\" href=\"\/ru\/collections\/bundle-dx-flagpole-antenna-remote-antenna-tuner\"\u003eAntenna + ATU bundles →\u003c\/a\u003e are available at a meaningful discount.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c!-- Q5 — BUNDLES \u0026 PROMOTIONS --\u003e\n\u003cdetails style=\"border: 1px solid #DDD8CC; margin: 0 0 8px 0;\"\u003e\n\u003csummary style=\"padding: 14px 18px; font-size: 14px; font-weight: bold; color: #1a1a1a; cursor: pointer; list-style: none; display: flex; justify-content: space-between; align-items: center;\"\u003eAre there bundles or promotions available? \u003cspan style=\"color: #b8960c; font-size: 18px;\"\u003e+\u003c\/span\u003e\u003c\/summary\u003e\n\u003cdiv style=\"padding: 0 18px 16px 18px; border-top: 1px solid #DDD8CC;\"\u003e\n\u003cp style=\"font-size: 14px; color: #555; line-height: 1.65; margin: 12px 0 0 0;\"\u003eYes. Every antenna is available bundled with the LDG RT-100 remote ATU at a discount versus buying separately. Bundles include the complete antenna system plus the tuner. Antennas carry a 7-Year Guarantee, and ship in a separate box. Free shipping on all USA orders. \u003ca style=\"color: #b8960c; text-decoration: none;\" href=\"\/ru\/collections\/bundle-dx-flagpole-antenna-remote-antenna-tuner\"\u003eShop all bundles →\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c!-- Q6 — INSTALLATION DIFFICULTY --\u003e\n\u003cdetails style=\"border: 1px solid #DDD8CC; margin: 0 0 8px 0;\"\u003e\n\u003csummary style=\"padding: 14px 18px; font-size: 14px; font-weight: bold; color: #1a1a1a; cursor: pointer; list-style: none; display: flex; justify-content: space-between; align-items: center;\"\u003eHow difficult is installation? How long does it take? \u003cspan style=\"color: #b8960c; font-size: 18px;\"\u003e+\u003c\/span\u003e\u003c\/summary\u003e\n\u003cdiv style=\"padding: 0 18px 16px 18px; border-top: 1px solid #DDD8CC;\"\u003e\n\u003cp style=\"font-size: 14px; color: #555; line-height: 1.65; margin: 12px 0 0 0;\"\u003eMost operators build the antenna in under an hour from unboxing. Dig a post hole (or use your chosen mount), build the antenna sections together (15–30 minutes), drop it in, run one coax, connect the ATU. The assembly manual walks every step. All stainless steel hardware comes pre-fastened to the antenna — no loose hardware to lose in the grass.\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; color: #555; line-height: 1.65; margin: 8px 0 0 0;\"\u003eAssembly documents and installation photos are at \u003ca style=\"color: #b8960c; text-decoration: none;\" href=\"\/ru\/pages\/assembly-documents\"\u003eSetup \u0026amp; Manuals →\u003c\/a\u003e Questions during install? Call us at 435-200-4902.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c!-- Q7 — WARRANTY \u0026 RETURNS --\u003e\n\u003cdetails style=\"border: 1px solid #DDD8CC; margin: 0 0 0 0;\"\u003e\n\u003csummary style=\"padding: 14px 18px; font-size: 14px; font-weight: bold; color: #1a1a1a; cursor: pointer; list-style: none; display: flex; justify-content: space-between; align-items: center;\"\u003eWhat does the 7-Year Guarantee cover? \u003cspan style=\"color: #b8960c; font-size: 18px;\"\u003e+\u003c\/span\u003e\u003c\/summary\u003e\n\u003cdiv style=\"padding: 0 18px 16px 18px; border-top: 1px solid #DDD8CC;\"\u003e\n\u003cp style=\"font-size: 14px; color: #555; line-height: 1.65; margin: 12px 0 0 0;\"\u003eSeven 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 and we sent a replacement immediately. That's the standard. Full warranty terms at \u003ca style=\"color: #b8960c; text-decoration: none;\" href=\"\/ru\/policies\/refund-policy\"\u003e7-Year Warranty Policy →\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\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 href=\"\/ru\/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","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=\"\/ru\/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!-- DXV28 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 DXV28 — Flagship Vertical. Maximum Aperture.\u003c\/h2\u003e\n\u003cp style=\"font-size: 15px; color: #555; line-height: 1.65; margin: 0 0 20px 0;\"\u003eThe DXV28 is Greyline’s most capable vertical — the system specified for EOC global ALE continuity, embassy compounds, and serious DX operators who want every dB the design can deliver. At 28 feet the VDA achieves full 5\/8λ geometry on 15 meters. 100% duty cycle. Deploys on any surface. No radials. No buried ground system required.\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 Flagpole Antenna?\u003c\/p\u003e\n  \u003cp style=\"margin:0;font-size:15px;line-height:1.6;color:#e8e8e8;\"\u003eMost HOA CC\u0026amp;Rs explicitly permit residential flagpoles. The DXF's RF function is entirely internal — no visible stubs, no loading coils, no radial wires. From the street, it's a flagpole. A handsome one. The antenna approval is already in the CC\u0026amp;Rs — it's called a flagpole permit.\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;\"\u003e55 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 — 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 · \u003ca href=\"\/ru\/pages\/nn3w-28-dxv-operator-report\" style=\"color:#B8960C;text-decoration:none;\"\u003eFull operator report →\u003c\/a\u003e\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“I ran a defense antenna company for 7 years. I am very impressed with the look, quality, machining, and part fit. \u003cstrong style=\"color:#ffffff;\"\u003eIt is a professional-grade product.\u003c\/strong\u003e” HOA approved in Colorado. 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 · Amateur Extra · Colorado HOA · \u003ca href=\"\/ru\/pages\/aerospace-engineer-case-study\" style=\"color:#B8960C;text-decoration:none;\"\u003eFull case study →\u003c\/a\u003e\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. Best low-band aperture in the DXV lineup.\u003c\/p\u003e\n\u003cp style=\"font-size: 13px; color: #888; margin: 0 0 16px 0;\"\u003ePhysics foundation: Zavrel W7SX · \u003cem\u003eAntenna Physics: An Introduction\u003c\/em\u003e (ARRL, 2020) · Kraus W8JK · \u003cem\u003eAntennas\u003c\/em\u003e (McGraw-Hill) · \u003ca style=\"color: #b8960c; text-decoration: none;\" href=\"\/ru\/pages\/what-is-a-vda-vertical-dipole-antenna\"\u003eDeep dive: What is a VDA? →\u003c\/a\u003e\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=\"\/ru\/pages\/assembly-documents\"\u003eFull Installation Guide →\u003c\/a\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\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\u003e28’ 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;\"\u003e155 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;\"\u003e115 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;\"\u003e90 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;\"\u003e70 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;\"\u003eDXV28\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 14px; font-weight: bold;\"\u003e55 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=\"\/ru\/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;\"\u003e100W 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=\"\/ru\/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 DXF28 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=\"\/ru\/collections\/hoa-flagpole-antenna\/products\/28-dx-flagpole-antenna-160-6m-vertical-dipole-antenna-vda\"\u003eSee the DXF28 →\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;\"\u003eThe DXV is a balanced VDA — tuner and RF choke must maintain a floating balanced feed. See the \u003ca style=\"color: #b8960c; text-decoration: none;\" href=\"\/ru\/blogs\/news\/correctly-configuring-the-flagpole-tuner-and-balun-feed-system\"\u003eTuner \u0026amp; Balun Configuration Guide →\u003c\/a\u003e\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;\"\u003e28 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;\"\u003e55 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=\"\/ru\/collections\/vertical-antenna\/products\/24-foot-vertical-antenna\"\u003e← DXV24\u003c\/a\u003e\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=\"\/ru\/pages\/how-to-order-a-greyline-performance-antenna-system-a-check-list\"\u003eSelection Guide\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cstyle\u003e\n.gp-faq details{border:1px solid #DDD8CC;margin:0 0 8px 0;}\n.gp-faq summary{padding:14px 18px;font-size:14px;font-weight:700;color:#1a1a1a;cursor:pointer;list-style:none;display:flex;justify-content:space-between;align-items:center;}\n.gp-faq summary::-webkit-details-marker{display:none;}\n.gp-faq summary::after{content:\"+\";color:#B8960C;font-size:18px;font-weight:400;flex-shrink:0;margin-left:16px;}\n.gp-faq details[open] summary::after{content:\"-\";}\n.gp-faq details[open] summary{color:#B8960C;}\n.gp-faq .fb{padding:0 18px 16px 18px;border-top:1px solid #DDD8CC;}\n.gp-faq .fb p{font-size:14px;color:#555;line-height:1.65;margin:12px 0 0 0;}\n.gp-faq .fb a{color:#B8960C;text-decoration:none;}\n.gp-faq .fc{font-size:13px;color:#555;margin:4px 0 0 0;}\n.gp-faq .fh{font-size:13px;color:#B8960C;font-weight:700;margin:8px 0 0 0;}\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\u003cstrong style=\"color: #1a1a1a;\"\u003eDXV or DXF?\u003c\/strong\u003e The \u003ca style=\"color: #b8960c; text-decoration: none;\" href=\"\/ru\/products\/28-foot-flagpole-antenna\"\u003eDXF28\u003c\/a\u003e adds flagpole hardware, flag kit, and HOA documents. Choose DXV for permanent EOC install, rooftop, or any site where the flagpole isn't needed.\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;\"\u003e55 \u003cspan style=\"font-size: 15px; font-weight: 400; color: #b0b0b0;\"\u003eMPH\u003c\/span\u003e\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;\"\u003eMaximum aperture, sheltered site recommended. Permanent EOC installs, large lots, protected rooftops where low-band performance is the priority.\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;\"\u003e15M\u003c\/p\u003e\n\u003cp style=\"font-size: 11px; color: #b0b0b0; margin: 0 0 10px;\"\u003eFlagship — maximum aperture\u003c\/p\u003e\n\u003cp style=\"font-size: 13px; color: #e8e8e8; line-height: 1.6; margin: 0;\"\u003e+1.1 dBi on 30M · +2.27 dBi on 20M · +3.54 dBi on 17M · +2.5 dBi on 15M. Working Africa and Asia on 10 through 30 meters is a documented result at this height.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- Owner quote — 28' only --\u003e\n\u003cdiv style=\"background: #f9f8f6; border: 1px solid #e0dbd0; border-left: 4px solid #B8960C; padding: 18px 20px; margin: 0 0 14px;\"\u003e\n\u003cp style=\"font-size: 15px; color: #1a1a1a; line-height: 1.75; font-style: italic; margin: 0 0 8px;\"\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=\"font-size: 12px; color: #b8960c; font-weight: bold; margin: 0;\"\u003e— Jon KL2A  ·  Founder, Greyline Performance\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\n  \u003cp style=\"font-size:14px; color:#444; line-height:1.75; margin:0 0 10px;\"\u003e\u003cstrong style=\"color:#1a1a1a;\"\u003eOutside:\u003c\/strong\u003e 2\" OD, full length — uniform profile top to bottom. Clean. Sleek. Invisible as an antenna. \u003cstrong style=\"color:#1a1a1a;\"\u003eInside:\u003c\/strong\u003e wall graduates where the physics demands it — \u003cstrong style=\"color:#1a1a1a;\"\u003e0.125\" lower 30%\u003c\/strong\u003e where base bending stress peaks, \u003cstrong style=\"color:#1a1a1a;\"\u003e0.065\" upper 70%\u003c\/strong\u003e where reducing mass at height lowers dynamic wind loads. Zero plastic. All-metal. McMaster-Carr hardware throughout. Sheltered installation recommended at this height.\u003c\/p\u003e\n\n  \u003cp style=\"font-size:14px; color:#444; line-height:1.75; margin:0 0 10px;\"\u003eAt 28 feet, the Greyline VDA presents \u003cstrong style=\"color:#1a1a1a;\"\u003e4.67 square feet\u003c\/strong\u003e 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.\u003c\/p\u003e\n\n  \u003cp style=\"font-size:14px; color:#444; line-height:1.75; margin:0 0 10px;\"\u003eCompetitors operating at larger outer diameters at comparable heights face exponentially compounding wind load numbers — and most cite no engineering standard for their ratings. A 4\" OD pole at 28 feet would present roughly 9.3 square feet of wind surface. Twice the load at the height where load matters most. The outer diameter is the variable that reveals everything. If a manufacturer won't publish it, ask why.\u003c\/p\u003e\n\n  \u003cp style=\"font-size:14px; color:#444; line-height:1.75; margin:0;\"\u003eEvery Greyline wind rating is derived from ASCE 7-10 structural engineering values — actual geometry, actual math, published methodology. \u003cstrong style=\"color:#1a1a1a;\"\u003eA wind rating without a cited standard is a guess dressed as a spec.\u003c\/strong\u003e Ask any competitor which standard they used. If they can't cite one, you have your answer.\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;\"\u003eThe flagship. 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;\"\u003eSame 6061-T6 aircraft aluminum. Same ASCE 7-10 wind ratings. Same VDA geometry. Same 7-year guarantee. \u003cstrong style=\"color: #ffffff;\"\u003eThreaded transition sections machined directly into the metal\u003c\/strong\u003e — self-aligning, no through-bolting, less total weight. The joint is cleaner than what came before it.\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; color: #e8e8e8; line-height: 1.75; margin: 0;\"\u003eThe 28' is the best antenna Greyline has ever shipped. This window closes when manufacturing expansion completes. \u003cstrong style=\"color: #ffffff;\"\u003eWatch this space.\u003c\/strong\u003e\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\u003eWe ship from stock — same or next business day when available. Peak season may carry 1–3 week queue. Current lead time always posted on our \u003ca href=\"\/ru\/pages\/order-status-updates-for-greyline-performance\"\u003eOrder Status page →\u003c\/a\u003e Call 435-200-4902 for a specific ship date.\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\u003eWe recommend the \u003ca href=\"\/ru\/products\/greyline-antenna-tuner-ldg-rt100-atu\"\u003eLDG RT-100 remote ATU\u003c\/a\u003e mounted at the antenna base — 125W, weatherproof, low cost, and a great fit for most operators. 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. The antenna itself handles any power and any mode without restriction. \u003ca href=\"\/ru\/collections\/bundle-dx-flagpole-antenna-remote-antenna-tuner\"\u003eAntenna + ATU bundles →\u003c\/a\u003e\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\u003eYes. Every DXV is available bundled with the LDG RT-100 at a discount. Free shipping USA. \u003ca href=\"\/ru\/collections\/bundle-dx-flagpole-antenna-remote-antenna-tuner\"\u003eShop all bundles →\u003c\/a\u003e\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\u003eAssembly documents at \u003ca href=\"\/ru\/pages\/assembly-documents\"\u003eSetup \u0026amp; Manuals →\u003c\/a\u003e Questions during install? Call 435-200-4902.\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\u003eSeven 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 \u003ca href=\"\/ru\/policies\/refund-policy\"\u003e7-Year Warranty Policy →\u003c\/a\u003e\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;\"\u003e\u003ca href=\"\/ru\/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 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 -- Adjustable Upper Radiator for Greyline 160-6M Systems","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 happens to hit 5\/8λ resonance, the published literature documents up to 3.5 dBi over a 1\/4-wave reference under ideal ground conditions — 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\u003cp style=\"color: #1a1a1a; font-family: Georgia,serif; font-size: 16px; line-height: 1.7; margin: 0 0 0 0;\"\u003e\u003ca style=\"color: #b8960c; text-decoration: underline;\" href=\"\/ru\/pages\/antenna-aperture-and-gain\"\u003eRead the full aperture and gain doctrine →\u003c\/a\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003c\/div\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 Gain Added\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;\"\u003eAt the 5\/8λ sweet spot for the new combined height.\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\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 — the closest you can get to a 32ft antenna in a standard Greyline setup.\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 32-foot at home and work Africa and Asia regularly on 10 through 30 meters. Real gain across every one of those bands. 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 feet\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 Gain Potential\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 14px; font-weight: bold;\"\u003eUp to +3.5 dBi at 5\/8λ sweet spot (height dependent)\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=\"\/ru\/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=\"\/ru\/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=\"\/ru\/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=\"\/ru\/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","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\/ru\/collections\/vertical-antenna\/vda.oembed","provider":"Greyline Performance Antennas","version":"1.0","type":"link"}