{"product_id":"skyline-37-hd-vertical-antenna","title":"Skyline 37 HD | 37' DX Vertical on the Heavy-Duty 28' HD (28' HD + 9' DX Whip)","description":"\u003cdiv style=\"max-width:860px;margin:0 auto;font-family:Arial,Helvetica,sans-serif;color:#555;line-height:1.65;\"\u003e\n\u003cp style=\"font-size:11px;text-transform:uppercase;letter-spacing:2.5px;color:#b8960c;font-weight:bold;margin:0 0 8px;\"\u003eSkyline Series · Heavy-Duty · 37 Feet · 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;\"\u003eThe Skyline 37 HD: The Tallest Greyline, on the Strongest Base.\u003c\/h2\u003e\n\u003cp style=\"font-size:15px;margin:0 0 14px;\"\u003eThe 28' HD with the 9' DX Whip on top: 37 feet of HF vertical, every band 160 through 6 from a single feedpoint, no radials, built on an oversized heavy-duty base. The same height as the Skyline 37, for sites where the wind makes the decision: open ground, ridgelines, coastline, high plains and northern winters.\u003c\/p\u003e\n\u003cdiv style=\"background:#1a1a1a;color:#e8e8e8;padding:20px 24px;border-left:4px solid #B8960C;margin:0 0 24px;\"\u003e\n\u003cp style=\"margin:0 0 6px;font-size:12px;font-weight:bold;color:#b8960c;text-transform:uppercase;letter-spacing:1px;\"\u003eAbout 85 MPH at 37 Feet · Now Taking Orders\u003c\/p\u003e\n\u003cp style=\"margin:0;font-size:15px;color:#e8e8e8;\"\u003eOur engineering model puts the Skyline 37 HD at about 85 mph with the whip on, 37 feet in the air. Ships in 1-2 weeks, built alongside the 28' HD, with free shipping to the USA and Canada. That figure is a preliminary engineering estimate; the PE-certified rating will be published here when it is complete.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background:#f7f4ec;border-top:3px solid #B8960C;padding:16px 20px;margin:0 0 24px;\"\u003e\n\u003cp style=\"margin:0 0 6px;font-size:12px;font-weight:bold;color:#b8960c;text-transform:uppercase;letter-spacing:1px;\"\u003eWhy the Whip Pays\u003c\/p\u003e\n\u003cp style=\"margin:0;font-size:15px;\"\u003eHeight is aperture. On 40, 80 and 160, where every backyard vertical is electrically short, nine more feet adds radiator exactly where it counts. Higher up the dial, the antenna's strongest band moves down from 10 meters toward 17 and 20. In NEC modeling over average ground, a 37-foot Greyline reaches about +4 dBi on 17 meters at the best DX angle, and every band still works.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background:#fff;border:1px solid #DDD8CC;border-top:3px solid #B8960C;padding:16px 20px;margin:0 0 28px;\"\u003e\n\u003cp style=\"font-size:12px;font-weight:bold;color:#b8960c;text-transform:uppercase;letter-spacing:1px;margin:0 0 8px;\"\u003eWhich 37-Footer? Same Antenna, Two Builds\u003c\/p\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;font-size:14px;\"\u003e\u003ctbody\u003e\n\u003ctr style=\"background:#f9f8f6;\"\u003e\n\u003ctd style=\"padding:8px 10px;width:24%;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px 10px;font-weight:bold;color:#1a1a1a;\"\u003eSkyline 37\u003c\/td\u003e\n\u003ctd style=\"padding:8px 10px;font-weight:bold;color:#1a1a1a;\"\u003eSkyline 37 HD\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px 10px;border-top:1px solid #EEE8DC;vertical-align:top;\"\u003eSignal\u003c\/td\u003e\n\u003ctd colspan=\"2\" style=\"padding:8px 10px;border-top:1px solid #EEE8DC;vertical-align:top;font-weight:bold;\"\u003eIdentical: 37 feet, every band 160-6M, same feedpoint\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px 10px;border-top:1px solid #EEE8DC;vertical-align:top;\"\u003eBase\u003c\/td\u003e\n\u003ctd style=\"padding:8px 10px;border-top:1px solid #EEE8DC;vertical-align:top;\"\u003eStandard 2-inch 28'\u003c\/td\u003e\n\u003ctd style=\"padding:8px 10px;border-top:1px solid #EEE8DC;vertical-align:top;font-weight:bold;\"\u003eHeavy-duty 28' HD base\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px 10px;border-top:1px solid #EEE8DC;vertical-align:top;\"\u003eWind\u003c\/td\u003e\n\u003ctd style=\"padding:8px 10px;border-top:1px solid #EEE8DC;vertical-align:top;\"\u003eTilt it down ahead of a big storm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 10px;border-top:1px solid #EEE8DC;vertical-align:top;font-weight:bold;\"\u003eAbout 85 mph at full height*\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px 10px;border-top:1px solid #EEE8DC;vertical-align:top;\"\u003eBuilt for\u003c\/td\u003e\n\u003ctd style=\"padding:8px 10px;border-top:1px solid #EEE8DC;vertical-align:top;\"\u003eMost yards\u003c\/td\u003e\n\u003ctd style=\"padding:8px 10px;border-top:1px solid #EEE8DC;vertical-align:top;\"\u003eSites where wind is the design problem\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px 10px;border-top:1px solid #EEE8DC;vertical-align:top;\"\u003eTilt\u003c\/td\u003e\n\u003ctd style=\"padding:8px 10px;border-top:1px solid #EEE8DC;vertical-align:top;\"\u003eTilt-Up Base\u003c\/td\u003e\n\u003ctd style=\"padding:8px 10px;border-top:1px solid #EEE8DC;vertical-align:top;\"\u003e3\" HD Tilt-Up Base\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003cp style=\"margin:10px 0 0;font-size:13px;color:#888;\"\u003e*Preliminary engineering estimate; PE-certified rating to follow.\u003c\/p\u003e\n\u003cp style=\"margin:6px 0 0;font-size:14px;\"\u003eNot sure which your site needs? Call 435-200-4902 and tell us about it.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"font-size:19px;font-weight:bold;color:#1a1a1a;margin:0 0 10px;\"\u003eWhy No Radials, and Why It Works\u003c\/h3\u003e\n\u003cp style=\"font-size:15px;margin:0 0 28px;\"\u003eA traditional quarter-wave vertical feeds at its base, so every ohm of ground resistance sits in series with the antenna and steals signal before it leaves your yard. The Greyline VDA is a vertical dipole: return current flows through the lower element, not a buried radial field, so the antenna stops depending on your soil. Frozen ground, rock and sand included. One feedpoint, every band.\u003c\/p\u003e\n\u003ch3 style=\"font-size:19px;font-weight:bold;color:#1a1a1a;margin:0 0 10px;\"\u003eWalk It Down Before the Storm\u003c\/h3\u003e\n\u003cp style=\"font-size:15px;margin:0 0 28px;\"\u003ePair it with the 3\" HD Tilt-Up Base, built alongside the antenna with the same one-direction pivot that stops dead at vertical. One rule for every tall antenna: when the forecast turns, walk it down.\u003c\/p\u003e\n\u003ch3 style=\"font-size:19px;font-weight:bold;color:#1a1a1a;margin:0 0 10px;\"\u003eSpecs\u003c\/h3\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;font-size:14px;margin:0 0 28px;\"\u003e\u003ctbody\u003e\n\u003ctr style=\"background:#f9f8f6;\"\u003e\n\u003ctd style=\"padding:9px 12px;width:38%;\"\u003eHeight\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;font-weight:bold;\"\u003e37 feet (28' HD + 9' DX Whip, whip adjustable)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:9px 12px;\"\u003ePole\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;font-weight:bold;\"\u003eOversized heavy-duty base, 6061-T6 aluminum, stainless hardware\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#f9f8f6;\"\u003e\n\u003ctd style=\"padding:9px 12px;\"\u003eBands\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;font-weight:bold;\"\u003eEvery band, 160-6M; strongest on 17M (about +4 dBi, NEC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:9px 12px;\"\u003eDesign\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;font-weight:bold;\"\u003eVDA, Vertical Dipole Antenna, off-center fed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#f9f8f6;\"\u003e\n\u003ctd style=\"padding:9px 12px;\"\u003eRadials\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;font-weight:bold;\"\u003eNone\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:9px 12px;\"\u003eWind\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;font-weight:bold;\"\u003eAbout 85 mph at 37 feet with the whip (preliminary engineering estimate); PE-certified rating to follow\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#f9f8f6;\"\u003e\n\u003ctd style=\"padding:9px 12px;\"\u003eFoundation\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;font-weight:bold;\"\u003eAbout 12 cubic feet of 3,000 psi concrete over gravel, set plumb; PE-designed foundation for exposed or critical sites; drawing included with your order\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:9px 12px;\"\u003eIn the box\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;font-weight:bold;\"\u003e28' HD radiator, 9' DX Whip, feedline kit (ladder line, five snap-on ferrites, ladder-line to PL-259 adapter, spacers)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#f9f8f6;\"\u003e\n\u003ctd style=\"padding:9px 12px;\"\u003eShips\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;font-weight:bold;\"\u003eIn 1-2 weeks; free to the USA and Canada; worldwide at carrier cost\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:9px 12px;\"\u003eHome\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;font-weight:bold;\"\u003eDesigned and built in the Mountain West · KL2A and HQ in Sun Valley, Idaho\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#f9f8f6;\"\u003e\n\u003ctd style=\"padding:9px 12px;\"\u003eWarranty\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;font-weight:bold;\"\u003e7 years\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003cp style=\"font-size:13px;color:#888;font-style:italic;margin:0;\"\u003eHam Radio is fun again! Pass it on… 73, Jon KL2A · Greyline Performance · 435-200-4902\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Greyline Performance","offers":[{"title":"Default Title","offer_id":50300349055253,"sku":"SKY-37-HD-DXV","price":2365.0,"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\/es\/products\/skyline-37-hd-vertical-antenna","provider":"Greyline Performance Antennas","version":"1.0","type":"link"}