{"product_id":"skyline-37-vertical-antenna","title":"Skyline 37 | 37' Vertical 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: 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},{"title":"Flag Kit (HOA)","offer_id":50011298660629,"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","url":"https:\/\/greylineperformance.com\/ja\/products\/skyline-37-vertical-antenna","provider":"Greyline Performance Antennas","version":"1.0","type":"link"}