{"product_id":"ed-fong-gmrs-antenna-dbj-5db-gain-antenna-pvc-pipe-not-includedorange-tag","title":"Ed Fong GMRS -DBJ -+5dB Gain Antenna PVC pipe not incl Orange Tag","description":"\u003ctable align=\"center\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cdiv id=\"ds_div\"\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eDBJ-UHF  \u003c\/strong\u003e- Perfect for GMRS - published in \u003cstrong\u003eCQ - summer 2010 - US patented \u003c\/strong\u003e8,947,313\u003cbr\u003e\u003cbr\u003eThis antenna was first presented at Pacificon 2010.  It was based on a grant given to us by AC Daughty Inc.  in 2010.   An article on this antenna was subsequently published in  CQ - Summer Addition 2012.  It has been granted US patent 8,947,313.   This is a unique design which met the requirements of AC Daughty Inc.   Some of the features include 5dB gain, only 3 1\/2  ft tall, no radials, up to 150 MPH winds. AC Daughty Inc.  uses over 200 of these antennas in a MESH network in New York.   \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cbr\u003e\u003cstrong\u003eBasic  Specifications:\u003c\/strong\u003e\u003cbr\u003e\u003cbr\u003eOverall Length: 3 1\/2  feet, 50 ohm feed impedance, no ground radials.  Antenna feedpoint is 10 inches above the connector.  Thus U clamps, hose clamps, etc. can be used for mounting up to the first 10 inches of the antenna without affecting performance.  Antenna offers “true” 2 element  ½ wavelength phased radiator  (centered tuned).  \u003cbr\u003e\u003cstrong\u003e \u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eUHF   (430-470 MHz)  -  Custom tuned to GMRS specification\u003c\/strong\u003e\u003cbr\u003e\u003cbr\u003eConfiguration:  two element  ½ wavelength phase collinear separated by 1\/2 wavelength\u003cbr\u003eMaximum power: 75 watts\u003cbr\u003eSWR:  less than 1.3 to 1 over a 5 MHz bandwidth and less than 1.5 :1 over 10 MHz bandwidth.\u003cbr\u003eMatching system:  1\/4 wave matching stub, ½ wavelength phasing stub\u003cbr\u003eGain:  5 dB over reference ground plane\u003cbr\u003eImpedance: 50 ohms\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eREQUIRES 3.5ft of 3\/4 inch thinwall pipe (available at Lowes) Orange Tag\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cbr data-mce-fragment=\"1\"\u003e","brand":"Ed Fong","offers":[{"title":"Default Title","offer_id":42972392718384,"sku":"ced-43211865784527","price":79.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0554\/1737\/2720\/files\/s-l1600_b1024775-5eae-4755-a314-24dc055f55d6.jpg?v=1776964653","url":"https:\/\/townsendmercantileco.com\/products\/ed-fong-gmrs-antenna-dbj-5db-gain-antenna-pvc-pipe-not-includedorange-tag","provider":"TownsendMercantileCo","version":"1.0","type":"link"}