{"title":"The Skyline Series | Tilt-Up Tall Verticals","description":"\u003cp\u003eThe Skyline Series: our tall verticals, built in two pieces. A DX Vertical base plus the 9-foot DX Whip — 29, 33, or 37 feet of tilt-up aperture. One-person install, no climbing, no radials. Open DX Verticals for the unrestricted yard, HOA flagpole versions that fly a flag. Bob teaches the physics. Greyline ships the height.\u003c\/p\u003e","products":[{"product_id":"skyline-37-vertical-antenna","title":"Skyline 37 | 37' DX Vertical VDA (28' + 9' DX Whip)","description":"\u003cdiv style=\"max-width: 860px; margin: 0 auto; padding: 8px 4px 24px; font-family: Georgia,'Times New Roman',serif; color: #555555; line-height: 1.7; font-size: 18px;\"\u003e\n\u003cdiv style=\"text-align: center; margin: 0 0 22px;\"\u003e\u003cspan style=\"display: inline-block; font-family: 'Courier New',Courier,monospace; font-size: 11px; font-weight: bold; letter-spacing: 2px; color: #b8960c; border: 1px solid #b8960c; padding: 6px 15px; text-transform: uppercase;\"\u003eThe Signal Lab\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center; margin: 0 0 30px;\"\u003e\u003ca href=\"https:\/\/greylineperformance.com\/\" style=\"text-decoration: none;\"\u003e \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0028\/2571\/5779\/files\/tan_full_word_480x480.png?v=1560968453\" alt=\"Greyline Performance Antennas\" width=\"220\" style=\"max-width: 220px; height: auto; border: 0;\"\u003e \u003c\/a\u003e\u003c\/div\u003e\n\u003ch1 style=\"font-size: 34px; line-height: 1.25; color: #1a1a1a; font-weight: bold; margin: 0 0 24px; text-align: center; font-family: Georgia,'Times New Roman',serif;\"\u003eThe Skyline 37: A Full Station On The Low Bands\u003c\/h1\u003e\n\u003cp style=\"margin: 0 0 20px;\"\u003eThis is (currently) the tallest vertical Greyline builds, and it is built for the operators who live down low. Take the 28-foot DX Vertical, add the 9-foot DX Whip, and you stand 37 feet of aperture into the sky with no flag, no compromise, and no apology. One antenna, the full low-band stack, tuned for the bands where height is the whole game.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 28px;\"\u003eHere is the clear-signal version of what that height buys you, band by band, with no marketing fog.\u003c\/p\u003e\n\u003cdiv style=\"background: #1a1a1a; border-left: 4px solid #b8960c; padding: 26px 28px; margin: 0 0 32px;\"\u003e\n\u003cp style=\"font-family: 'Courier New',Courier,monospace; font-size: 11px; font-weight: bold; letter-spacing: 1px; color: #b8960c; text-transform: uppercase; margin: 0 0 12px;\"\u003eWhat 37 Feet Is For\u003c\/p\u003e\n\u003cp style=\"color: #ffffff; font-style: italic; font-size: 22px; line-height: 1.5; margin: 0;\"\u003eHeight is the one upgrade the low bands actually reward. This is the most of it we make.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch2 style=\"font-size: 27px; color: #1a1a1a; font-weight: bold; margin: 40px 0 16px; font-family: Georgia,'Times New Roman',serif;\"\u003eWhy Add The Whip At All\u003c\/h2\u003e\n\u003cp style=\"margin: 0 0 20px;\"\u003eA bare 28-foot vertical is already a strong antenna. So why bolt nine more feet on top? Because adding height does something specific and worth understanding: it shifts the five-eighths wave sweet spot onto a lower band than the base antenna reaches. The whip does not give you a higher band, it gives you a lower one, and the low bands are exactly where most operators are starved for signal. Cycle 25 is sliding down the back side of a very good set of peak years. 10-12-15M will see major dips for a few years, and the low bands 30-40-60-80M will see a surge in activity. The whip addresses this.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 28px;\"\u003eThat is the move. The 28-foot vertical alone lands its sweet spot up the stack. Add the whip and the whole geometry slides down the bands, putting real current maximum and a lower radiation angle onto 40 and 30 meters, where the DX lives and where a few feet of height is worth more than any tuner trick. In comes Aperture.\u003c\/p\u003e\n\u003ch2 style=\"font-size: 27px; color: #1a1a1a; font-weight: bold; margin: 40px 0 16px; font-family: Georgia,'Times New Roman',serif;\"\u003eThe Gain, Band By Band.\u003c\/h2\u003e\n\u003cp style=\"margin: 0 0 20px;\"\u003eWe model our antennas rather than guess at them, and we will tell you where the Skyline 37 shines and where the physics gets complicated. The numbers come from modeling on the published work of Bob Zavrel W7SX. No rounding up, no hiding the messy bands.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 20px;\"\u003e\u003cstrong\u003eWhere it shines, 40 through 20 meters.\u003c\/strong\u003e On 40 meters the Skyline 37 models positive gain dBi over the bare vertical. On 30 meters it lands its best showing, the sweet spot doing exactly what the added height is supposed to do. On 20 meters it stays positive and strong. These three bands are the reason the Skyline 37 exists, and they are where the operator who wants low-band punch should look first.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 28px;\"\u003e\u003cstrong\u003eWhere it gets interesting, 17 through 10 meters.\u003c\/strong\u003e On the higher bands the long vertical stops behaving like a simple radiator and starts behaving like an extended double Zepp, the pattern breaking into multiple lobes. That is not a defect, it is physics: a radiator this tall on a short wavelength develops a multi-lobe pattern, and some of those lobes point at useful angles while others do not. The Skyline 37 still works up high, but it is not the clean single-lobe story that 40 and 30 meters tell. We would rather you know that going in than discover it on the air.\u003c\/p\u003e\n\u003cdiv style=\"background: #1a1a1a; border-left: 4px solid #b8960c; padding: 26px 28px; margin: 0 0 32px;\"\u003e\n\u003cp style=\"font-family: 'Courier New',Courier,monospace; font-size: 11px; font-weight: bold; letter-spacing: 1px; color: #b8960c; text-transform: uppercase; margin: 0 0 12px;\"\u003eThe Bob Test\u003c\/p\u003e\n\u003cp style=\"color: #ffffff; font-style: italic; font-size: 20px; line-height: 1.55; margin: 0 0 12px;\"\u003eWe model the gain, we name the bands where the pattern gets complicated, and we say so out loud. That is the difference between a spec sheet and a sales pitch.\u003c\/p\u003e\n\u003cp style=\"margin: 0;\"\u003e\u003ca href=\"https:\/\/greylineperformance.com\/pages\/antenna-aperture-and-gain\" style=\"color: #b8960c; font-weight: bold; text-decoration: none;\"\u003eRead The Aperture Page →\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch2 style=\"font-size: 27px; color: #1a1a1a; font-weight: bold; margin: 40px 0 16px; font-family: Georgia,'Times New Roman',serif;\"\u003eWho This Is For\u003c\/h2\u003e\n\u003cp style=\"margin: 0 0 20px;\"\u003eReach for the Skyline 37 if your heart is on 40 and 30 meters and you want every honest decibel height can give you. Reach for it if you want the tallest, most capable vertical Greyline makes and you do not need the flagpole disguise. The open vertical configuration is the taller, cleaner build, no flag hardware in the way of the physics.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 28px;\"\u003eIf you are in an HOA and need the antenna to read as a flagpole, the Skyline 37 comes in a Flag Kit configuration too, same height, same physics, with the flag hardware that keeps the peace with the neighbors. Either way you get 37 feet of aperture working the low bands.\u003c\/p\u003e\n\u003cdiv style=\"background: #ffffff; border-top: 3px solid #b8960c; border-left: 1px solid #DDD8CC; border-right: 1px solid #DDD8CC; border-bottom: 1px solid #DDD8CC; padding: 24px 28px; margin: 0 0 32px;\"\u003e\n\u003cp style=\"font-family: 'Courier New',Courier,monospace; font-size: 11px; font-weight: bold; letter-spacing: 1px; color: #b8960c; text-transform: uppercase; margin: 0 0 14px;\"\u003eThe Build \/\/ 37 Feet, Two Pieces\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 10px; color: #555;\"\u003e\u003cstrong\u003eBase:\u003c\/strong\u003e 28-foot DX Vertical, 160-6M, no radials, the tallest open vertical in the Greyline line.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 10px; color: #555;\"\u003e\u003cstrong\u003eTop:\u003c\/strong\u003e 9-foot DX Whip, five-eighths wave geometry, installs in about two minutes, no tools, field-upgradeable any time.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 10px; color: #555;\"\u003e\u003cstrong\u003eTotal height:\u003c\/strong\u003e 37 feet of effective aperture into the sky.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 10px; color: #555;\"\u003e\u003cstrong\u003eBest bands:\u003c\/strong\u003e 40M, 30M, 20M (modeled positive gain). Honest multi-lobe behavior 17M and up.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 10px; color: #555;\"\u003e\u003cstrong\u003eFT8 \/ digital:\u003c\/strong\u003e Full duty cycle at rated power — a solid radiator with no traps or loading coils to heat.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 14px; color: #555;\"\u003e\u003cstrong\u003eConfigurations:\u003c\/strong\u003e Open DX Vertical (taller, no flag) or Flag Kit (HOA-friendly, flies a flag).\u003c\/p\u003e\n\u003cp style=\"margin: 0;\"\u003e\u003ca href=\"https:\/\/greylineperformance.com\/products\/9-foot-whip-for-greyline-antennas\" style=\"color: #b8960c; font-weight: bold; text-decoration: none;\"\u003eSee The 9' DX Whip On Its Own →\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch2 style=\"font-size: 27px; color: #1a1a1a; font-weight: bold; margin: 40px 0 16px; font-family: Georgia,'Times New Roman',serif;\"\u003eAdd The Height, Work The Band\u003c\/h2\u003e\n\u003cp style=\"margin: 0 0 20px;\"\u003eThe low bands do not reward cleverness, they reward aperture. Thirty-seven feet of it, modeled honestly, tuned for 40 and 30 meters, with the higher bands available when you want to chase them. This is the most antenna Greyline builds for the operator who lives down low.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 30px;\"\u003eBob teaches the physics. Greyline ships the height. Now go work the bands!\u003c\/p\u003e\n\u003cdiv style=\"background: #ffffff; border-top: 3px solid #b8960c; border-left: 1px solid #DDD8CC; border-right: 1px solid #DDD8CC; border-bottom: 1px solid #DDD8CC; padding: 24px 28px; margin: 0 0 32px;\"\u003e\n\u003cp style=\"font-family: 'Courier New',Courier,monospace; font-size: 11px; font-weight: bold; letter-spacing: 1px; color: #b8960c; text-transform: uppercase; margin: 0 0 14px;\"\u003eBuild Your Skyline 37\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 10px; color: #555;\"\u003e\u003cstrong\u003eOpen DX Vertical\u003c\/strong\u003e (taller, no flag) — 28' DXV plus 9' DX Whip — \u003cstrong\u003e$1,425\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 14px; color: #555;\"\u003e\u003cstrong\u003eFlag Kit (HOA-friendly)\u003c\/strong\u003e — 28' DX Flagpole plus 9' DX Whip — \u003cstrong\u003e$1,470\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"margin: 0;\"\u003e\u003ca href=\"https:\/\/greylineperformance.com\/products\/28-foot-vertical-dipole-antenna\" style=\"color: #b8960c; font-weight: bold; text-decoration: none;\"\u003eChoose Your Configuration →\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #ffffff; border-top: 3px solid #b8960c; border-left: 1px solid #DDD8CC; border-right: 1px solid #DDD8CC; border-bottom: 1px solid #DDD8CC; padding: 24px 28px; margin: 0 0 30px;\"\u003e\n\u003cp style=\"font-family: 'Courier New',Courier,monospace; font-size: 11px; font-weight: bold; letter-spacing: 1px; color: #b8960c; text-transform: uppercase; margin: 0 0 14px;\"\u003eThe Skyline Ladder + Keep Reading\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 10px;\"\u003e\u003ca href=\"https:\/\/greylineperformance.com\/products\/skyline-33-vertical-antenna\" style=\"color: #b8960c; font-weight: bold; text-decoration: none;\"\u003eThe Skyline 33\u003c\/a\u003e — the classic 40-meter quarter-wave height.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 10px;\"\u003e\u003ca href=\"https:\/\/greylineperformance.com\/products\/skyline-29-vertical-antenna\" style=\"color: #b8960c; font-weight: bold; text-decoration: none;\"\u003eThe Skyline 29\u003c\/a\u003e — the balanced build, clean pattern further up the dial.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 10px;\"\u003e\u003ca href=\"https:\/\/greylineperformance.com\/pages\/antenna-aperture-and-gain\" style=\"color: #b8960c; font-weight: bold; text-decoration: none;\"\u003eThe Aperture Page\u003c\/a\u003e — why height is the highest-leverage upgrade, from Bob Zavrel’s published work.\u003c\/p\u003e\n\u003cp style=\"margin: 0;\"\u003e\u003ca href=\"https:\/\/greylineperformance.com\/pages\/antenna-selection-guide\" style=\"color: #b8960c; font-weight: bold; text-decoration: none;\"\u003eThe Antenna Selection Guide\u003c\/a\u003e — tell it your bands, it finds your height.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-top: 3px solid #b8960c; padding-top: 24px; margin-top: 34px; text-align: center;\"\u003e\n\u003cp style=\"font-family: 'Courier New',Courier,monospace; font-size: 14px; color: #5c5c5c; margin: 0 0 8px;\"\u003e73 — Greyline Performance — \u003ca href=\"tel:4352004902\" style=\"color: #b8960c; font-weight: bold; text-decoration: none;\"\u003e435-200-4902\u003c\/a\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; margin: 0 0 18px;\"\u003eHam Radio is fun again! Pass it on…\u003c\/p\u003e\n\u003ca href=\"https:\/\/greylineperformance.com\/\" style=\"text-decoration: none;\"\u003e \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0028\/2571\/5779\/files\/brown_simple_240x240.png?v=1561676193\" alt=\"Greyline Performance Antennas\" width=\"80\" style=\"max-width: 80px; height: auto; border: 0;\"\u003e \u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Greyline Performance","offers":[{"title":"Open DX Vertical","offer_id":50011298627861,"sku":"SKY-37-DXV","price":1425.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0028\/2571\/5779\/files\/K7NV-vertical.jpg?v=1674670734"},{"product_id":"skyline-33-vertical-antenna","title":"Skyline 33 | 33' DX Vertical VDA (24' + 9' DX Whip)","description":"\u003cdiv style=\"max-width:860px; margin:0 auto; padding:8px 4px 24px; font-family:Georgia,'Times New Roman',serif; color:#555555; line-height:1.7; font-size:18px;\"\u003e\n\n  \u003cdiv style=\"text-align:center; margin:0 0 22px;\"\u003e\n    \u003cspan style=\"display:inline-block; font-family:'Courier New',Courier,monospace; font-size:11px; font-weight:bold; letter-spacing:2px; color:#b8960c; border:1px solid #b8960c; padding:6px 15px; text-transform:uppercase;\"\u003eThe Signal Lab\u003c\/span\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv style=\"text-align:center; margin:0 0 30px;\"\u003e\n    \u003ca href=\"https:\/\/greylineperformance.com\/\" style=\"text-decoration:none;\"\u003e\n      \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0028\/2571\/5779\/files\/tan_full_word_480x480.png?v=1560968453\" alt=\"Greyline Performance Antennas\" width=\"220\" style=\"max-width:220px; height:auto; border:0;\"\u003e\n    \u003c\/a\u003e\n  \u003c\/div\u003e\n\n  \u003ch1 style=\"font-size:34px; line-height:1.25; color:#1a1a1a; font-weight:700; margin:0 0 24px; text-align:center; font-family:Georgia,'Times New Roman',serif;\"\u003eThe Skyline 33: The 40-Meter Height, Built In Two Pieces\u003c\/h1\u003e\n\n  \u003cp style=\"margin:0 0 20px;\"\u003eThirty-three feet is not an arbitrary number. It is the textbook quarter-wave on 40 meters, the height operators have been building toward for a century of low-band work. Take the 24-foot DX Vertical, add the 9-foot DX Whip, and you stand exactly there — the classic 40-meter geometry, no tower, no radials, no guy wires.\u003c\/p\u003e\n\n  \u003cp style=\"margin:0 0 28px;\"\u003eHere is the honest version of what that height buys you, band by band, with no marketing fog.\u003c\/p\u003e\n\n  \u003cdiv style=\"background:#1a1a1a; border-left:4px solid #b8960c; padding:26px 28px; margin:0 0 32px;\"\u003e\n    \u003cp style=\"font-family:'Courier New',Courier,monospace; font-size:11px; font-weight:bold; letter-spacing:1px; color:#b8960c; text-transform:uppercase; margin:0 0 12px;\"\u003eWhat 33 Feet Is For\u003c\/p\u003e\n    \u003cp style=\"color:#ffffff; font-style:italic; font-size:22px; line-height:1.5; margin:0;\"\u003eForty meters has a favorite height, and this is it. The classic quarter-wave, delivered in two pieces.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003ch2 style=\"font-size:27px; color:#1a1a1a; font-weight:700; margin:40px 0 16px; font-family:Georgia,'Times New Roman',serif;\"\u003eWhy Add The Whip At All\u003c\/h2\u003e\n\n  \u003cp style=\"margin:0 0 20px;\"\u003eA bare 24-foot vertical is already the most popular height in the Greyline line, and for good reason — it is the all-rounder. So why bolt nine more feet on top? Because adding height does something specific and worth understanding: it shifts the antenna’s sweet spot onto a lower band than the bare antenna reaches. The whip does not give you a higher band, it gives you a lower one, and 40 meters is exactly the band most operators are starved for.\u003c\/p\u003e\n\n  \u003cp style=\"margin:0 0 28px;\"\u003eThat is the move. The 24-foot vertical alone lands its best work up the stack. Add the whip and the whole geometry slides down, putting real current maximum and a lower radiation angle onto 40 and 30 meters — and on 40, it lands on the quarter-wave number the textbooks were written around.\u003c\/p\u003e\n\n  \u003ch2 style=\"font-size:27px; color:#1a1a1a; font-weight:700; margin:40px 0 16px; font-family:Georgia,'Times New Roman',serif;\"\u003eThe Gain, Band By Band, Honestly\u003c\/h2\u003e\n\n  \u003cp style=\"margin:0 0 20px;\"\u003eWe model our antennas rather than guess at them, and we will tell you plainly where the combo shines and where the physics gets complicated. The numbers come from modeling on the published work of Bob Zavrel W7SX. No rounding up, no hiding the messy bands.\u003c\/p\u003e\n\n  \u003cp style=\"margin:0 0 20px;\"\u003e\u003cstrong\u003eWhere it shines, 40 through 20 meters.\u003c\/strong\u003e On 40 meters the Skyline 33 stands at the classic quarter-wave height — this is the band the 33-foot build exists for, and it models real gain over the bare vertical there. On 30 meters it stays strong, the added height still paying. On 20 meters it remains positive and clean. If your logbook lives on 40, this is your height.\u003c\/p\u003e\n\n  \u003cp style=\"margin:0 0 28px;\"\u003e\u003cstrong\u003eWhere it gets interesting, 15 through 10 meters.\u003c\/strong\u003e Seventeen meters sits near the antenna’s five-eighths-wave point — still useful, but transitional. Above that, on 15, 12, and 10, a radiator this tall on a short wavelength stops behaving like a simple vertical and develops a multi-lobe pattern, some lobes at useful angles and some not. That is physics, not a defect. The combo still works up high, but the clean single-lobe story belongs to 40 through 20. We would rather you know that going in than discover it on the air.\u003c\/p\u003e\n\n  \u003cdiv style=\"background:#1a1a1a; border-left:4px solid #b8960c; padding:26px 28px; margin:0 0 32px;\"\u003e\n    \u003cp style=\"font-family:'Courier New',Courier,monospace; font-size:11px; font-weight:bold; letter-spacing:1px; color:#b8960c; text-transform:uppercase; margin:0 0 12px;\"\u003eThe Bob Test\u003c\/p\u003e\n    \u003cp style=\"color:#ffffff; font-style:italic; font-size:20px; line-height:1.55; margin:0 0 12px;\"\u003eWe model the gain, we name the bands where the pattern gets complicated, and we say so out loud. That is the difference between a spec sheet and a sales pitch.\u003c\/p\u003e\n    \u003cp style=\"margin:0;\"\u003e\u003ca href=\"https:\/\/greylineperformance.com\/pages\/antenna-aperture-and-gain\" style=\"color:#b8960c; font-weight:bold; text-decoration:none;\"\u003eRead The Aperture Page →\u003c\/a\u003e\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003ch2 style=\"font-size:27px; color:#1a1a1a; font-weight:700; margin:40px 0 16px; font-family:Georgia,'Times New Roman',serif;\"\u003eWho This Is For\u003c\/h2\u003e\n\n  \u003cp style=\"margin:0 0 20px;\"\u003eReach for the Skyline 33 if 40 meters is your home band and you want the height the band actually rewards. It is the working DXer’s build: the most popular base antenna in the line, topped to the classic 40M number, still clean and strong on 30 and 20.\u003c\/p\u003e\n\n  \u003cp style=\"margin:0 0 28px;\"\u003eThe open vertical configuration is the taller, cleaner build, no flag hardware in the way of the physics. If you are in an HOA and need the antenna to read as a flagpole, the combo comes in a Flag Kit configuration too — same height, same physics, with the flag hardware that keeps the peace with the neighbors.\u003c\/p\u003e\n\n  \u003cdiv style=\"background:#ffffff; border-top:3px solid #b8960c; border-left:1px solid #DDD8CC; border-right:1px solid #DDD8CC; border-bottom:1px solid #DDD8CC; padding:24px 28px; margin:0 0 32px;\"\u003e\n    \u003cp style=\"font-family:'Courier New',Courier,monospace; font-size:11px; font-weight:bold; letter-spacing:1px; color:#b8960c; text-transform:uppercase; margin:0 0 14px;\"\u003eThe Build \/\/ 33 Feet, Two Pieces\u003c\/p\u003e\n    \u003cp style=\"margin:0 0 10px; color:#555;\"\u003e\u003cstrong\u003eBase:\u003c\/strong\u003e 24-foot DX Vertical, 160-6M, no radials, the most popular height in the Greyline line.\u003c\/p\u003e\n    \u003cp style=\"margin:0 0 10px; color:#555;\"\u003e\u003cstrong\u003eTop:\u003c\/strong\u003e 9-foot DX Whip, five-eighths wave geometry, installs in about two minutes, no tools, field-upgradeable any time.\u003c\/p\u003e\n    \u003cp style=\"margin:0 0 10px; color:#555;\"\u003e\u003cstrong\u003eTotal height:\u003c\/strong\u003e 33 feet — the classic 40-meter quarter-wave.\u003c\/p\u003e\n    \u003cp style=\"margin:0 0 10px; color:#555;\"\u003e\u003cstrong\u003eBest bands:\u003c\/strong\u003e 40M, 30M, 20M (modeled positive gain). 17M transitional; honest multi-lobe behavior 15M and up.\u003c\/p\u003e\n    \u003cp style=\"margin:0 0 10px; color:#555;\"\u003e\u003cstrong\u003eFT8 \/ digital:\u003c\/strong\u003e Full duty cycle at rated power — a solid radiator with no traps or loading coils to heat.\u003c\/p\u003e\n    \u003cp style=\"margin:0 0 14px; color:#555;\"\u003e\u003cstrong\u003eConfigurations:\u003c\/strong\u003e Open DX Vertical (taller, no flag) or Flag Kit (HOA-friendly, flies a flag).\u003c\/p\u003e\n    \u003cp style=\"margin:0;\"\u003e\u003ca href=\"https:\/\/greylineperformance.com\/products\/9-foot-whip-for-greyline-antennas\" style=\"color:#b8960c; font-weight:bold; text-decoration:none;\"\u003eSee The 9' DX Whip On Its Own →\u003c\/a\u003e\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003ch2 style=\"font-size:27px; color:#1a1a1a; font-weight:700; margin:40px 0 16px; font-family:Georgia,'Times New Roman',serif;\"\u003eAdd The Height, Work The Band\u003c\/h2\u003e\n\n  \u003cp style=\"margin:0 0 20px;\"\u003eForty meters does not reward cleverness, it rewards being the right height. Thirty-three feet of aperture, modeled honestly, landing on the number the band was practically designed around — with 30 and 20 riding along strong.\u003c\/p\u003e\n\n  \u003cp style=\"margin:0 0 30px;\"\u003eBob teaches the physics. Greyline ships the height. Now go work the band.\u003c\/p\u003e\n\n  \u003cdiv style=\"background:#ffffff; border-top:3px solid #b8960c; border-left:1px solid #DDD8CC; border-right:1px solid #DDD8CC; border-bottom:1px solid #DDD8CC; padding:24px 28px; margin:0 0 32px;\"\u003e\n    \u003cp style=\"font-family:'Courier New',Courier,monospace; font-size:11px; font-weight:bold; letter-spacing:1px; color:#b8960c; text-transform:uppercase; margin:0 0 14px;\"\u003eBuild Your Skyline 33\u003c\/p\u003e\n    \u003cp style=\"margin:0 0 10px; color:#555;\"\u003e\u003cstrong\u003eOpen DX Vertical\u003c\/strong\u003e (taller, no flag) — 24' DXV plus 9' DX Whip — \u003cstrong\u003e$1,325\u003c\/strong\u003e\u003c\/p\u003e\n    \u003cp style=\"margin:0 0 14px; color:#555;\"\u003e\u003cstrong\u003eFlag Kit (HOA-friendly)\u003c\/strong\u003e — 24' DX Flagpole plus 9' DX Whip — \u003cstrong\u003e$1,370\u003c\/strong\u003e\u003c\/p\u003e\n    \u003cp style=\"margin:0;\"\u003e\u003ca href=\"https:\/\/greylineperformance.com\/products\/24-foot-vertical-dipole-antenna\" style=\"color:#b8960c; font-weight:bold; text-decoration:none;\"\u003eChoose Your Configuration →\u003c\/a\u003e\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv style=\"background:#ffffff; border-top:3px solid #b8960c; border-left:1px solid #DDD8CC; border-right:1px solid #DDD8CC; border-bottom:1px solid #DDD8CC; padding:24px 28px; margin:0 0 30px;\"\u003e\n    \u003cp style=\"font-family:'Courier New',Courier,monospace; font-size:11px; font-weight:bold; letter-spacing:1px; color:#b8960c; text-transform:uppercase; margin:0 0 14px;\"\u003eThe Skyline Ladder + Keep Reading\u003c\/p\u003e\n    \u003cp style=\"margin:0 0 10px;\"\u003e\u003ca href=\"https:\/\/greylineperformance.com\/products\/skyline-37-vertical-antenna\" style=\"color:#b8960c; font-weight:bold; text-decoration:none;\"\u003eThe Skyline 37\u003c\/a\u003e — the tallest build, for the operator who lives on 40 and 30.\u003c\/p\u003e\n    \u003cp style=\"margin:0 0 10px;\"\u003e\u003ca href=\"https:\/\/greylineperformance.com\/products\/skyline-29-vertical-antenna\" style=\"color:#b8960c; font-weight:bold; text-decoration:none;\"\u003eThe Skyline 29\u003c\/a\u003e — the balanced build, clean pattern further up the dial.\u003c\/p\u003e\n    \u003cp style=\"margin:0 0 10px;\"\u003e\u003ca href=\"https:\/\/greylineperformance.com\/pages\/antenna-aperture-and-gain\" style=\"color:#b8960c; font-weight:bold; text-decoration:none;\"\u003eThe Aperture Page\u003c\/a\u003e — why height is the highest-leverage upgrade, from Bob Zavrel’s published work.\u003c\/p\u003e\n    \u003cp style=\"margin:0;\"\u003e\u003ca href=\"https:\/\/greylineperformance.com\/pages\/antenna-selection-guide\" style=\"color:#b8960c; font-weight:bold; text-decoration:none;\"\u003eThe Antenna Selection Guide\u003c\/a\u003e — tell it your bands, it finds your height.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv style=\"border-top:3px solid #b8960c; padding-top:24px; margin-top:34px; text-align:center;\"\u003e\n    \u003cp style=\"font-family:'Courier New',Courier,monospace; font-size:14px; color:#5C5C5C; margin:0 0 8px;\"\u003e73 — Greyline Performance — \u003ca href=\"tel:4352004902\" style=\"color:#b8960c; font-weight:bold; text-decoration:none;\"\u003e435-200-4902\u003c\/a\u003e\u003c\/p\u003e\n    \u003cp style=\"font-size:16px; font-weight:bold; color:#1a1a1a; margin:0 0 18px;\"\u003eHam Radio is fun again! Pass it on…\u003c\/p\u003e\n    \u003ca href=\"https:\/\/greylineperformance.com\/\" style=\"text-decoration:none;\"\u003e\n      \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0028\/2571\/5779\/files\/brown_simple_240x240.png?v=1561676193\" alt=\"Greyline Performance Antennas\" width=\"80\" style=\"max-width:80px; height:auto; border:0;\"\u003e\n    \u003c\/a\u003e\n  \u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Greyline Performance","offers":[{"title":"Open DX Vertical","offer_id":50011300921621,"sku":"SKY-33-DXV","price":1325.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0028\/2571\/5779\/files\/K7NV-vertical.jpg?v=1674670734"},{"product_id":"skyline-29-vertical-antenna","title":"Skyline 29 | 29' DX Vertical VDA (20' + 9' DX Whip)","description":"\u003cdiv style=\"max-width:860px; margin:0 auto; padding:8px 4px 24px; font-family:Georgia,'Times New Roman',serif; color:#555555; line-height:1.7; font-size:18px;\"\u003e\n\n  \u003c!-- SIGNAL LAB EYEBROW --\u003e\n  \u003cdiv style=\"text-align:center; margin:0 0 22px;\"\u003e\n    \u003cspan style=\"display:inline-block; font-family:'Courier New',Courier,monospace; font-size:11px; font-weight:bold; letter-spacing:2px; color:#b8960c; border:1px solid #b8960c; padding:6px 15px; text-transform:uppercase;\"\u003eThe Signal Lab\u003c\/span\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- IN-BODY MASTHEAD LOGO --\u003e\n  \u003cdiv style=\"text-align:center; margin:0 0 30px;\"\u003e\n    \u003ca href=\"https:\/\/greylineperformance.com\/\" style=\"text-decoration:none;\"\u003e\n      \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0028\/2571\/5779\/files\/tan_full_word_480x480.png?v=1560968453\" alt=\"Greyline Performance Antennas\" width=\"220\" style=\"max-width:220px; height:auto; border:0;\"\u003e\n    \u003c\/a\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- H1 --\u003e\n  \u003ch1 style=\"font-size:34px; line-height:1.25; color:#1a1a1a; font-weight:700; margin:0 0 24px; text-align:center; font-family:Georgia,'Times New Roman',serif;\"\u003eThe Skyline 29: Low-Band Reach, Clean All The Way Up\u003c\/h1\u003e\n\n  \u003cp style=\"margin:0 0 20px;\"\u003eThis is the balanced build. Take the 20-foot DX Vertical, add the 9-foot DX Whip, and you stand 29 feet of aperture — enough height to genuinely wake up 40 meters, short enough that the pattern stays clean and single-lobed further up the dial than any taller combo we make. Low-band reach without giving up the high bands.\u003c\/p\u003e\n\n  \u003cp style=\"margin:0 0 28px;\"\u003eHere is the honest version of what that height buys you, band by band, with no marketing fog.\u003c\/p\u003e\n\n  \u003cdiv style=\"background:#1a1a1a; border-left:4px solid #b8960c; padding:26px 28px; margin:0 0 32px;\"\u003e\n    \u003cp style=\"font-family:'Courier New',Courier,monospace; font-size:11px; font-weight:bold; letter-spacing:1px; color:#b8960c; text-transform:uppercase; margin:0 0 12px;\"\u003eWhat 29 Feet Is For\u003c\/p\u003e\n    \u003cp style=\"color:#ffffff; font-style:italic; font-size:22px; line-height:1.5; margin:0;\"\u003eEnough height to wake up 40 meters. Short enough to stay clean nearly everywhere else. The band-hopper’s combo.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003ch2 style=\"font-size:27px; color:#1a1a1a; font-weight:700; margin:40px 0 16px; font-family:Georgia,'Times New Roman',serif;\"\u003eWhy Add The Whip At All\u003c\/h2\u003e\n\n  \u003cp style=\"margin:0 0 20px;\"\u003eA bare 20-foot vertical is a proven performer — compact, stealthy, honest. So why bolt nine more feet on top? Because adding height does something specific and worth understanding: it shifts the antenna’s sweet spot onto a lower band than the bare antenna reaches. The whip does not give you a higher band, it gives you a lower one — and for the 20-foot base, that means 40 meters stops being a stretch and starts being a working band.\u003c\/p\u003e\n\n  \u003cp style=\"margin:0 0 28px;\"\u003eThat is the move. The 20-foot vertical alone does its best work on the mid and high bands. Add the whip and the geometry slides down, putting real current maximum and a lower radiation angle onto 40 and 30 meters — while the modest total height keeps the upper bands well-behaved.\u003c\/p\u003e\n\n  \u003ch2 style=\"font-size:27px; color:#1a1a1a; font-weight:700; margin:40px 0 16px; font-family:Georgia,'Times New Roman',serif;\"\u003eThe Gain, Band By Band, Honestly\u003c\/h2\u003e\n\n  \u003cp style=\"margin:0 0 20px;\"\u003eWe model our antennas rather than guess at them, and we will tell you plainly where the combo shines and where the physics gets complicated. The numbers come from modeling on the published work of Bob Zavrel W7SX. No rounding up, no hiding the messy bands.\u003c\/p\u003e\n\n  \u003cp style=\"margin:0 0 20px;\"\u003e\u003cstrong\u003eWhere it shines, 40 through 17 meters.\u003c\/strong\u003e On 40 meters the Skyline 29 models real gain over the bare 20-foot vertical — this is the band the added height exists for. On 30 and 20 it stays strong and clean. And here is the 29-footer’s quiet advantage: on 17 meters it is still behaving like a simple, single-lobe radiator, a band where its taller siblings have already gone multi-lobe. Fewer feet, better manners.\u003c\/p\u003e\n\n  \u003cp style=\"margin:0 0 28px;\"\u003e\u003cstrong\u003eWhere it gets interesting, 15 through 10 meters.\u003c\/strong\u003e Fifteen meters sits near the antenna’s five-eighths-wave point — still useful, but transitional. On 12 and 10, a radiator this tall on a short wavelength develops a multi-lobe pattern, some lobes at useful angles and some not. That is physics, not a defect — and note it arrives two bands later here than it does on the 37-foot build. The trade is honest: less raw low-band aperture than the taller combos, a cleaner pattern higher up the dial.\u003c\/p\u003e\n\n  \u003cdiv style=\"background:#1a1a1a; border-left:4px solid #b8960c; padding:26px 28px; margin:0 0 32px;\"\u003e\n    \u003cp style=\"font-family:'Courier New',Courier,monospace; font-size:11px; font-weight:bold; letter-spacing:1px; color:#b8960c; text-transform:uppercase; margin:0 0 12px;\"\u003eThe Bob Test\u003c\/p\u003e\n    \u003cp style=\"color:#ffffff; font-style:italic; font-size:20px; line-height:1.55; margin:0 0 12px;\"\u003eWe model the gain, we name the bands where the pattern gets complicated, and we say so out loud. That is the difference between a spec sheet and a sales pitch.\u003c\/p\u003e\n    \u003cp style=\"margin:0;\"\u003e\u003ca href=\"https:\/\/greylineperformance.com\/pages\/antenna-aperture-and-gain\" style=\"color:#b8960c; font-weight:bold; text-decoration:none;\"\u003eRead The Aperture Page →\u003c\/a\u003e\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003ch2 style=\"font-size:27px; color:#1a1a1a; font-weight:700; margin:40px 0 16px; font-family:Georgia,'Times New Roman',serif;\"\u003eWho This Is For\u003c\/h2\u003e\n\n  \u003cp style=\"margin:0 0 20px;\"\u003eReach for the Skyline 29 if you hop bands all week — 40 for the evening nets, 20 and 17 for the daylight DX — and you want one antenna that behaves everywhere. It is also the natural pick for the smaller lot: the least conspicuous Skyline in the ladder, with the most even temperament.\u003c\/p\u003e\n\n  \u003cp style=\"margin:0 0 28px;\"\u003eThe open vertical configuration is the taller, cleaner build, no flag hardware in the way of the physics. If you are in an HOA and need the antenna to read as a flagpole, the combo comes in a Flag Kit configuration too — same height, same physics, with the flag hardware that keeps the peace with the neighbors.\u003c\/p\u003e\n\n  \u003c!-- THE BUILD \/ SPEC BLOCK --\u003e\n  \u003cdiv style=\"background:#ffffff; border-top:3px solid #b8960c; border-left:1px solid #DDD8CC; border-right:1px solid #DDD8CC; border-bottom:1px solid #DDD8CC; padding:24px 28px; margin:0 0 32px;\"\u003e\n    \u003cp style=\"font-family:'Courier New',Courier,monospace; font-size:11px; font-weight:bold; letter-spacing:1px; color:#b8960c; text-transform:uppercase; margin:0 0 14px;\"\u003eThe Build \/\/ 29 Feet, Two Pieces\u003c\/p\u003e\n    \u003cp style=\"margin:0 0 10px; color:#555;\"\u003e\u003cstrong\u003eBase:\u003c\/strong\u003e 20-foot DX Vertical, 160-6M, no radials, the compact workhorse of the Greyline line.\u003c\/p\u003e\n    \u003cp style=\"margin:0 0 10px; color:#555;\"\u003e\u003cstrong\u003eTop:\u003c\/strong\u003e 9-foot DX Whip, five-eighths wave geometry, installs in about two minutes, no tools, field-upgradeable any time.\u003c\/p\u003e\n    \u003cp style=\"margin:0 0 10px; color:#555;\"\u003e\u003cstrong\u003eTotal height:\u003c\/strong\u003e 29 feet of effective aperture, the balanced number.\u003c\/p\u003e\n    \u003cp style=\"margin:0 0 10px; color:#555;\"\u003e\u003cstrong\u003eBest bands:\u003c\/strong\u003e 40M, 30M, 20M, 17M (modeled positive gain, clean pattern). 15M transitional; honest multi-lobe behavior on 12M and 10M.\u003c\/p\u003e\n    \u003cp style=\"margin:0 0 10px; color:#555;\"\u003e\u003cstrong\u003eFT8 \/ digital:\u003c\/strong\u003e Full duty cycle at rated power — a solid radiator with no traps or loading coils to heat.\u003c\/p\u003e\n    \u003cp style=\"margin:0 0 14px; color:#555;\"\u003e\u003cstrong\u003eConfigurations:\u003c\/strong\u003e Open DX Vertical (taller, no flag) or Flag Kit (HOA-friendly, flies a flag).\u003c\/p\u003e\n    \u003cp style=\"margin:0;\"\u003e\u003ca href=\"https:\/\/greylineperformance.com\/products\/9-foot-whip-for-greyline-antennas\" style=\"color:#b8960c; font-weight:bold; text-decoration:none;\"\u003eSee The 9' DX Whip On Its Own →\u003c\/a\u003e\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003ch2 style=\"font-size:27px; color:#1a1a1a; font-weight:700; margin:40px 0 16px; font-family:Georgia,'Times New Roman',serif;\"\u003eAdd The Height, Work The Bands\u003c\/h2\u003e\n\n  \u003cp style=\"margin:0 0 20px;\"\u003eThe balanced build does not chase one band, it shows up on all of them. Twenty-nine feet of aperture, modeled honestly, waking up 40 meters while staying mannerly through 17 — one antenna for the operator who refuses to pick a favorite.\u003c\/p\u003e\n\n  \u003cp style=\"margin:0 0 30px;\"\u003eBob teaches the physics. Greyline ships the height. Now go work the bands.\u003c\/p\u003e\n\n  \u003c!-- PRODUCT ANCHOR \/ CTA --\u003e\n  \u003cdiv style=\"background:#ffffff; border-top:3px solid #b8960c; border-left:1px solid #DDD8CC; border-right:1px solid #DDD8CC; border-bottom:1px solid #DDD8CC; padding:24px 28px; margin:0 0 32px;\"\u003e\n    \u003cp style=\"font-family:'Courier New',Courier,monospace; font-size:11px; font-weight:bold; letter-spacing:1px; color:#b8960c; text-transform:uppercase; margin:0 0 14px;\"\u003eBuild Your Skyline 29\u003c\/p\u003e\n    \u003cp style=\"margin:0 0 10px; color:#555;\"\u003e\u003cstrong\u003eOpen DX Vertical\u003c\/strong\u003e (taller, no flag) — 20' DXV plus 9' DX Whip — \u003cstrong\u003e$1,225\u003c\/strong\u003e\u003c\/p\u003e\n    \u003cp style=\"margin:0 0 14px; color:#555;\"\u003e\u003cstrong\u003eFlag Kit (HOA-friendly)\u003c\/strong\u003e — 20' DX Flagpole plus 9' DX Whip — \u003cstrong\u003e$1,275\u003c\/strong\u003e\u003c\/p\u003e\n    \u003cp style=\"margin:0;\"\u003e\u003ca href=\"https:\/\/greylineperformance.com\/products\/20-foot-vertical-dipole-antenna\" style=\"color:#b8960c; font-weight:bold; text-decoration:none;\"\u003eChoose Your Configuration →\u003c\/a\u003e\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- THE COMBO LADDER \/ CROSS-LINK --\u003e\n  \u003cdiv style=\"background:#ffffff; border-top:3px solid #b8960c; border-left:1px solid #DDD8CC; border-right:1px solid #DDD8CC; border-bottom:1px solid #DDD8CC; padding:24px 28px; margin:0 0 30px;\"\u003e\n    \u003cp style=\"font-family:'Courier New',Courier,monospace; font-size:11px; font-weight:bold; letter-spacing:1px; color:#b8960c; text-transform:uppercase; margin:0 0 14px;\"\u003eThe Skyline Ladder + Keep Reading\u003c\/p\u003e\n    \u003cp style=\"margin:0 0 10px;\"\u003e\u003ca href=\"https:\/\/greylineperformance.com\/products\/skyline-37-vertical-antenna\" style=\"color:#b8960c; font-weight:bold; text-decoration:none;\"\u003eThe Skyline 37\u003c\/a\u003e — the tallest build, for the operator who lives on 40 and 30.\u003c\/p\u003e\n    \u003cp style=\"margin:0 0 10px;\"\u003e\u003ca href=\"https:\/\/greylineperformance.com\/products\/skyline-33-vertical-antenna\" style=\"color:#b8960c; font-weight:bold; text-decoration:none;\"\u003eThe Skyline 33\u003c\/a\u003e — the classic 40-meter quarter-wave height.\u003c\/p\u003e\n    \u003cp style=\"margin:0 0 10px;\"\u003e\u003ca href=\"https:\/\/greylineperformance.com\/pages\/antenna-aperture-and-gain\" style=\"color:#b8960c; font-weight:bold; text-decoration:none;\"\u003eThe Aperture Page\u003c\/a\u003e — why height is the highest-leverage upgrade, from Bob Zavrel’s published work.\u003c\/p\u003e\n    \u003cp style=\"margin:0;\"\u003e\u003ca href=\"https:\/\/greylineperformance.com\/pages\/antenna-selection-guide\" style=\"color:#b8960c; font-weight:bold; text-decoration:none;\"\u003eThe Antenna Selection Guide\u003c\/a\u003e — tell it your bands, it finds your height.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- CANONICAL FOOTER --\u003e\n  \u003cdiv style=\"border-top:3px solid #b8960c; padding-top:24px; margin-top:34px; text-align:center;\"\u003e\n    \u003cp style=\"font-family:'Courier New',Courier,monospace; font-size:14px; color:#5C5C5C; margin:0 0 8px;\"\u003e73 — Greyline Performance — \u003ca href=\"tel:4352004902\" style=\"color:#b8960c; font-weight:bold; text-decoration:none;\"\u003e435-200-4902\u003c\/a\u003e\u003c\/p\u003e\n    \u003cp style=\"font-size:16px; font-weight:bold; color:#1a1a1a; margin:0 0 18px;\"\u003eHam Radio is fun again! Pass it on…\u003c\/p\u003e\n    \u003ca href=\"https:\/\/greylineperformance.com\/\" style=\"text-decoration:none;\"\u003e\n      \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0028\/2571\/5779\/files\/brown_simple_240x240.png?v=1561676193\" alt=\"Greyline Performance Antennas\" width=\"80\" style=\"max-width:80px; height:auto; border:0;\"\u003e\n    \u003c\/a\u003e\n  \u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Greyline Performance","offers":[{"title":"Open DX Vertical","offer_id":50011301085461,"sku":"SKY-29-DXV","price":1225.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0028\/2571\/5779\/files\/K7NV-vertical.jpg?v=1674670734"},{"product_id":"skyline-37-flag-kit","title":"Skyline 37' HOA Flagpole Antenna (28' + 9' DX Whip)","description":"\u003cdiv style=\"max-width: 860px; margin: 0 auto; padding: 8px 4px 24px; font-family: Georgia,'Times New Roman',serif; color: #555555; line-height: 1.7; font-size: 18px;\"\u003e\n\u003cdiv style=\"text-align: center; margin: 0 0 22px;\"\u003e\u003cspan style=\"display: inline-block; font-family: 'Courier New',Courier,monospace; font-size: 11px; font-weight: bold; letter-spacing: 2px; color: #b8960c; border: 1px solid #b8960c; padding: 6px 15px; text-transform: uppercase;\"\u003eThe Signal Lab\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center; margin: 0 0 30px;\"\u003e\u003ca href=\"https:\/\/greylineperformance.com\/\" style=\"text-decoration: none;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0028\/2571\/5779\/files\/tan_full_word_480x480.png?v=1560968453\" alt=\"Greyline Performance Antennas\" width=\"220\" style=\"max-width: 220px; height: auto; border: 0;\"\u003e\u003c\/a\u003e\u003c\/div\u003e\n\u003ch1 style=\"font-size: 34px; line-height: 1.25; color: #1a1a1a; font-weight: bold; margin: 0 0 24px; text-align: center; font-family: Georgia,'Times New Roman',serif;\"\u003eThe Skyline 37 Flagpole Antenna\u003c\/h1\u003e\n\u003cp style=\"margin: 0 0 20px;\"\u003eSame height, same physics, different disguise. The Skyline 37 Flag Kit is the 28-foot DX Flagpole plus the 9-foot DX Whip — 37 feet of low-band aperture that flies a flag and keeps the peace with the neighbors. The HOA sees a flagpole. The bands hear a full station.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 28px;\"\u003eEverything we published about the Skyline 37 applies here — the modeled gain on 40, 30, and 20 meters, the Cycle 25 timing, the honest multi-lobe story up high. \u003ca href=\"https:\/\/greylineperformance.com\/products\/skyline-37-vertical-antenna\" style=\"color: #b8960c; font-weight: bold; text-decoration: none;\"\u003eRead the full Skyline 37 story →\u003c\/a\u003e\u003c\/p\u003e\n\u003cdiv style=\"background: #1a1a1a; border-left: 4px solid #b8960c; padding: 26px 28px; margin: 0 0 32px;\"\u003e\n\u003cp style=\"font-family: 'Courier New',Courier,monospace; font-size: 11px; font-weight: bold; letter-spacing: 1px; color: #b8960c; text-transform: uppercase; margin: 0 0 12px;\"\u003eThe Quiet Giant\u003c\/p\u003e\n\u003cp style=\"color: #ffffff; font-style: italic; font-size: 22px; line-height: 1.5; margin: 0;\"\u003eYour neighbors salute it. The DX hears it. Nobody has to know both are true.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #ffffff; border-top: 3px solid #b8960c; border-left: 1px solid #DDD8CC; border-right: 1px solid #DDD8CC; border-bottom: 1px solid #DDD8CC; padding: 24px 28px; margin: 0 0 32px;\"\u003e\n\u003cp style=\"font-family: 'Courier New',Courier,monospace; font-size: 11px; font-weight: bold; letter-spacing: 1px; color: #b8960c; text-transform: uppercase; margin: 0 0 14px;\"\u003eThe Build \/\/ 37 Feet, Flag Flying\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 10px; color: #555;\"\u003e\u003cstrong\u003eBase:\u003c\/strong\u003e 28-foot DX Flagpole, 160-6M, no radials, HOA-friendly.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 10px; color: #555;\"\u003e\u003cstrong\u003eTop:\u003c\/strong\u003e 9-foot DX Whip — two-minute install, no tools.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 10px; color: #555;\"\u003e\u003cstrong\u003eTotal height:\u003c\/strong\u003e 37 feet of effective aperture.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 10px; color: #555;\"\u003e\u003cstrong\u003eBest bands:\u003c\/strong\u003e 40M, 30M, 20M (modeled positive gain). Honest multi-lobe behavior 17M and up.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 10px; color: #555;\"\u003e\u003cstrong\u003eFT8 \/ digital:\u003c\/strong\u003e Full duty cycle at rated power — a solid radiator with no traps or loading coils to heat.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 14px; color: #555;\"\u003e\u003cstrong\u003ePrefer the open build, no flag?\u003c\/strong\u003e \u003ca href=\"https:\/\/greylineperformance.com\/products\/skyline-37-vertical-antenna\" style=\"color: #b8960c; font-weight: bold; text-decoration: none;\"\u003eSkyline 37 Open DX Vertical →\u003c\/a\u003e\u003c\/p\u003e\n\u003cp style=\"margin: 0;\"\u003e\u003ca href=\"https:\/\/greylineperformance.com\/pages\/antenna-aperture-and-gain\" style=\"color: #b8960c; font-weight: bold; text-decoration: none;\"\u003eThe Aperture Page →\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-top: 3px solid #b8960c; padding-top: 24px; margin-top: 34px; text-align: center;\"\u003e\n\u003cp style=\"font-family: 'Courier New',Courier,monospace; font-size: 14px; color: #5c5c5c; margin: 0 0 8px;\"\u003e73 — Greyline Performance — \u003ca href=\"tel:4352004902\" style=\"color: #b8960c; font-weight: bold; text-decoration: none;\"\u003e435-200-4902\u003c\/a\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; margin: 0 0 18px;\"\u003eHam Radio is fun again! Pass it on…\u003c\/p\u003e\n\u003ca href=\"https:\/\/greylineperformance.com\/\" style=\"text-decoration: none;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0028\/2571\/5779\/files\/brown_simple_240x240.png?v=1561676193\" alt=\"Greyline Performance Antennas\" width=\"80\" style=\"max-width: 80px; height: auto; border: 0;\"\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Greyline Performance","offers":[{"title":"Default Title","offer_id":50015163482389,"sku":"SKY-37-DXF","price":1470.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0028\/2571\/5779\/files\/K7NV-vertical.jpg?v=1674670734"},{"product_id":"skyline-33-flag-kit","title":"Skyline 33' HOA Flagpole Antenna (24' + 9' DX Whip)","description":"\u003cdiv style=\"max-width: 860px; margin: 0 auto; padding: 8px 4px 24px; font-family: Georgia,'Times New Roman',serif; color: #555555; line-height: 1.7; font-size: 18px;\"\u003e\n\u003cdiv style=\"text-align: center; margin: 0 0 22px;\"\u003e\u003cspan style=\"display: inline-block; font-family: 'Courier New',Courier,monospace; font-size: 11px; font-weight: bold; letter-spacing: 2px; color: #b8960c; border: 1px solid #b8960c; padding: 6px 15px; text-transform: uppercase;\"\u003eThe Signal Lab\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center; margin: 0 0 30px;\"\u003e\u003ca href=\"https:\/\/greylineperformance.com\/\" style=\"text-decoration: none;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0028\/2571\/5779\/files\/tan_full_word_480x480.png?v=1560968453\" alt=\"Greyline Performance Antennas\" width=\"220\" style=\"max-width: 220px; height: auto; border: 0;\"\u003e\u003c\/a\u003e\u003c\/div\u003e\n\u003ch1 style=\"font-size: 34px; line-height: 1.25; color: #1a1a1a; font-weight: bold; margin: 0 0 24px; text-align: center; font-family: Georgia,'Times New Roman',serif;\"\u003eThe Skyline 33 Flagpole Antenna: The 40-Meter Height, Flying A Flag\u003c\/h1\u003e\n\u003cp style=\"margin: 0 0 20px;\"\u003eThirty-three feet is the classic 40-meter quarter-wave — and this one flies a flag. The Skyline 33 Flag Kit is the 24-foot DX Flagpole plus the 9-foot DX Whip: the textbook low-band height, dressed for the HOA. The neighbors see a flagpole. Forty meters hears the real thing.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 28px;\"\u003eEverything we published about the Skyline 33 applies here — the quarter-wave story, the modeled gain on 40 through 20, the honest physics up high. \u003ca href=\"https:\/\/greylineperformance.com\/products\/skyline-33-vertical-antenna\" style=\"color: #b8960c; font-weight: bold; text-decoration: none;\"\u003eRead the full Skyline 33 story →\u003c\/a\u003e\u003c\/p\u003e\n\u003cdiv style=\"background: #1a1a1a; border-left: 4px solid #b8960c; padding: 26px 28px; margin: 0 0 32px;\"\u003e\n\u003cp style=\"font-family: 'Courier New',Courier,monospace; font-size: 11px; font-weight: bold; letter-spacing: 1px; color: #b8960c; text-transform: uppercase; margin: 0 0 12px;\"\u003eThe Quiet Classic\u003c\/p\u003e\n\u003cp style=\"color: #ffffff; font-style: italic; font-size: 22px; line-height: 1.5; margin: 0;\"\u003eThe height the textbooks were written around, hiding in plain sight on your lawn.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #ffffff; border-top: 3px solid #b8960c; border-left: 1px solid #DDD8CC; border-right: 1px solid #DDD8CC; border-bottom: 1px solid #DDD8CC; padding: 24px 28px; margin: 0 0 32px;\"\u003e\n\u003cp style=\"font-family: 'Courier New',Courier,monospace; font-size: 11px; font-weight: bold; letter-spacing: 1px; color: #b8960c; text-transform: uppercase; margin: 0 0 14px;\"\u003eThe Build \/\/ 33 Feet, Flag Flying\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 10px; color: #555;\"\u003e\u003cstrong\u003eBase:\u003c\/strong\u003e 24-foot DX Flagpole, 160-6M, no radials, HOA-friendly.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 10px; color: #555;\"\u003e\u003cstrong\u003eTop:\u003c\/strong\u003e 9-foot DX Whip — two-minute install, no tools.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 10px; color: #555;\"\u003e\u003cstrong\u003eTotal height:\u003c\/strong\u003e 33 feet — the classic 40-meter quarter-wave.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 10px; color: #555;\"\u003e\u003cstrong\u003eBest bands:\u003c\/strong\u003e 40M, 30M, 20M (modeled positive gain). 17M transitional; honest multi-lobe behavior 15M and up.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 10px; color: #555;\"\u003e\u003cstrong\u003eFT8 \/ digital:\u003c\/strong\u003e Full duty cycle at rated power — a solid radiator with no traps or loading coils to heat.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 14px; color: #555;\"\u003e\u003cstrong\u003ePrefer the open build, no flag?\u003c\/strong\u003e \u003ca href=\"https:\/\/greylineperformance.com\/products\/skyline-33-vertical-antenna\" style=\"color: #b8960c; font-weight: bold; text-decoration: none;\"\u003eSkyline 33 Open DX Vertical →\u003c\/a\u003e\u003c\/p\u003e\n\u003cp style=\"margin: 0;\"\u003e\u003ca href=\"https:\/\/greylineperformance.com\/pages\/antenna-aperture-and-gain\" style=\"color: #b8960c; font-weight: bold; text-decoration: none;\"\u003eThe Aperture Page →\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-top: 3px solid #b8960c; padding-top: 24px; margin-top: 34px; text-align: center;\"\u003e\n\u003cp style=\"font-family: 'Courier New',Courier,monospace; font-size: 14px; color: #5c5c5c; margin: 0 0 8px;\"\u003e73 — Greyline Performance — \u003ca href=\"tel:4352004902\" style=\"color: #b8960c; font-weight: bold; text-decoration: none;\"\u003e435-200-4902\u003c\/a\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; margin: 0 0 18px;\"\u003eHam Radio is fun again! Pass it on…\u003c\/p\u003e\n\u003ca href=\"https:\/\/greylineperformance.com\/\" style=\"text-decoration: none;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0028\/2571\/5779\/files\/brown_simple_240x240.png?v=1561676193\" alt=\"Greyline Performance Antennas\" width=\"80\" style=\"max-width: 80px; height: auto; border: 0;\"\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Greyline Performance","offers":[{"title":"Default Title","offer_id":50015164465429,"sku":"SKY-33-DXF","price":1370.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0028\/2571\/5779\/files\/K7NV-vertical.jpg?v=1674670734"},{"product_id":"skyline-29-flag-kit","title":"Skyline 29' HOA Flagpole Antenna (20' + 9' DX Whip)","description":"\u003cdiv style=\"max-width: 860px; margin: 0 auto; padding: 8px 4px 24px; font-family: Georgia,'Times New Roman',serif; color: #555555; line-height: 1.7; font-size: 18px;\"\u003e\n\u003cdiv style=\"text-align: center; margin: 0 0 22px;\"\u003e\u003cspan style=\"display: inline-block; font-family: 'Courier New',Courier,monospace; font-size: 11px; font-weight: bold; letter-spacing: 2px; color: #b8960c; border: 1px solid #b8960c; padding: 6px 15px; text-transform: uppercase;\"\u003eThe Signal Lab\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center; margin: 0 0 30px;\"\u003e\u003ca href=\"https:\/\/greylineperformance.com\/\" style=\"text-decoration: none;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0028\/2571\/5779\/files\/tan_full_word_480x480.png?v=1560968453\" alt=\"Greyline Performance Antennas\" width=\"220\" style=\"max-width: 220px; height: auto; border: 0;\"\u003e\u003c\/a\u003e\u003c\/div\u003e\n\u003ch1 style=\"font-size: 34px; line-height: 1.25; color: #1a1a1a; font-weight: bold; margin: 0 0 24px; text-align: center; font-family: Georgia,'Times New Roman',serif;\"\u003eThe Skyline 29 Flagpole Antenna: The Balanced Build, Flying A Flag\u003c\/h1\u003e\n\u003cp style=\"margin: 0 0 20px;\"\u003eThe balanced build, dressed for the neighborhood. The Skyline 29 Flag Kit is the 20-foot DX Flagpole plus the 9-foot DX Whip — 29 feet of aperture that wakes up 40 meters, stays clean through 17, and reads as a flagpole from the street. The least conspicuous Skyline, with the most even temperament.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 28px;\"\u003eEverything we published about the Skyline 29 applies here — the band-hopper story, the clean pattern through 17 meters, the honest physics above. \u003ca href=\"https:\/\/greylineperformance.com\/products\/skyline-29-vertical-antenna\" style=\"color: #b8960c; font-weight: bold; text-decoration: none;\"\u003eRead the full Skyline 29 story →\u003c\/a\u003e\u003c\/p\u003e\n\u003cdiv style=\"background: #1a1a1a; border-left: 4px solid #b8960c; padding: 26px 28px; margin: 0 0 32px;\"\u003e\n\u003cp style=\"font-family: 'Courier New',Courier,monospace; font-size: 11px; font-weight: bold; letter-spacing: 1px; color: #b8960c; text-transform: uppercase; margin: 0 0 12px;\"\u003eThe Quiet All-Rounder\u003c\/p\u003e\n\u003cp style=\"color: #ffffff; font-style: italic; font-size: 22px; line-height: 1.5; margin: 0;\"\u003eSmall enough to disappear into the neighborhood. Tall enough that 40 meters notices.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #ffffff; border-top: 3px solid #b8960c; border-left: 1px solid #DDD8CC; border-right: 1px solid #DDD8CC; border-bottom: 1px solid #DDD8CC; padding: 24px 28px; margin: 0 0 32px;\"\u003e\n\u003cp style=\"font-family: 'Courier New',Courier,monospace; font-size: 11px; font-weight: bold; letter-spacing: 1px; color: #b8960c; text-transform: uppercase; margin: 0 0 14px;\"\u003eThe Build \/\/ 29 Feet, Flag Flying\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 10px; color: #555;\"\u003e\u003cstrong\u003eBase:\u003c\/strong\u003e 20-foot DX Flagpole, 160-6M, no radials, HOA-friendly.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 10px; color: #555;\"\u003e\u003cstrong\u003eTop:\u003c\/strong\u003e 9-foot DX Whip — two-minute install, no tools.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 10px; color: #555;\"\u003e\u003cstrong\u003eTotal height:\u003c\/strong\u003e 29 feet of effective aperture, the balanced number.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 10px; color: #555;\"\u003e\u003cstrong\u003eBest bands:\u003c\/strong\u003e 40M, 30M, 20M, 17M (modeled positive gain, clean pattern). 15M transitional; honest multi-lobe on 12M and 10M.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 10px; color: #555;\"\u003e\u003cstrong\u003eFT8 \/ digital:\u003c\/strong\u003e Full duty cycle at rated power — a solid radiator with no traps or loading coils to heat.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 14px; color: #555;\"\u003e\u003cstrong\u003ePrefer the open build, no flag?\u003c\/strong\u003e \u003ca href=\"https:\/\/greylineperformance.com\/products\/skyline-29-vertical-antenna\" style=\"color: #b8960c; font-weight: bold; text-decoration: none;\"\u003eSkyline 29 Open DX Vertical →\u003c\/a\u003e\u003c\/p\u003e\n\u003cp style=\"margin: 0;\"\u003e\u003ca href=\"https:\/\/greylineperformance.com\/pages\/antenna-aperture-and-gain\" style=\"color: #b8960c; font-weight: bold; text-decoration: none;\"\u003eThe Aperture Page →\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-top: 3px solid #b8960c; padding-top: 24px; margin-top: 34px; text-align: center;\"\u003e\n\u003cp style=\"font-family: 'Courier New',Courier,monospace; font-size: 14px; color: #5c5c5c; margin: 0 0 8px;\"\u003e73 — Greyline Performance — \u003ca href=\"tel:4352004902\" style=\"color: #b8960c; font-weight: bold; text-decoration: none;\"\u003e435-200-4902\u003c\/a\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; margin: 0 0 18px;\"\u003eHam Radio is fun again! Pass it on…\u003c\/p\u003e\n\u003ca href=\"https:\/\/greylineperformance.com\/\" style=\"text-decoration: none;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0028\/2571\/5779\/files\/brown_simple_240x240.png?v=1561676193\" alt=\"Greyline Performance Antennas\" width=\"80\" style=\"max-width: 80px; height: auto; border: 0;\"\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Greyline Performance","offers":[{"title":"Default Title","offer_id":50015165284629,"sku":"SKY-29-DXF","price":1275.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0028\/2571\/5779\/files\/K7NV-vertical.jpg?v=1674670734"}],"url":"https:\/\/greylineperformance.com\/collections\/skyline-series.oembed","provider":"Greyline Performance Antennas","version":"1.0","type":"link"}