{"product_id":"the-big-wheel-horizontal-polarized-omni-directional-antenna-2m-144-145-vhf","title":"The Big Wheel horizontal polarized omni directional antenna 2m 144 145 VHF","description":"\u003ch1\u003e\u003cspan style=\"color: #000000;\"\u003e\u003cstrong\u003eBig Wheel horizontal polarized omni directional antenna 2m\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h1\u003e\n\u003ch1\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cspan style=\"color: #ff2a00; text-decoration: underline;\"\u003eDue to manufacturing problems we don't stock this item anymore.\u003c\/span\u003e\u003c\/span\u003e\u003c\/h1\u003e\n\u003ch1\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/h1\u003e\n\u003ch1\u003e\u003cstrong\u003eThe \"Big Wheel\" is a horizontal polarized omni directional antenna. Usually highly directional antennas are used on VHF , which have the capability to bundle the radiated energy in one direction and eliminate interferences from unwanted directions. But these effects are not always welcome. With directional antennas it is nearly impossible to monitor a frequency for signals from any direction. Usually the directional antenna stays in the direction where the most signals are expected from and some rare contact in an other direction is lost. In such cases the Big Wheel is an ideal antenna which should be used together with a directional antenna. Big Wheel antennas are made of stainless aluminum, all other hardware is made of stainless steel. The antenna gain is approx. 3dBD, each Big Wheel has a N-jack (female). By vertical stacking of two Big Wheels you get a gain of approx. 5dBD. To connect two antennas to one coax feed a usual phasing harness can be used. Frequency 144-146 MHz\u003c\/strong\u003e\u003c\/h1\u003e\n\u003ch1\u003e\u003cstrong\u003eGain ca. 3 dBD\u003c\/strong\u003e\u003c\/h1\u003e\n\u003ch1\u003e\u003cstrong\u003eSWR 1,2 ... 1,5\u003c\/strong\u003e\u003c\/h1\u003e\n\u003ch1\u003e\u003cstrong\u003eMax. Power 500 Watt\u003c\/strong\u003e\u003c\/h1\u003e\n\u003ch1\u003e\u003cstrong\u003eImpedance 50 ‘\u003c\/strong\u003e\u003c\/h1\u003e\n\u003ch1\u003e\u003cstrong\u003eDiameter ca. 1,2 ca. 0,34 ca. 3,6 m \u003c\/strong\u003e\u003c\/h1\u003e\n\u003ch1\u003e\u003cstrong\u003eMax.Mast Diameter 65 50 65 mm\u003c\/strong\u003e\u003c\/h1\u003e\n\u003ch1\u003e\u003cstrong\u003eWeight 0,7 0,3 K\u003c\/strong\u003e\u003c\/h1\u003e\n\u003ch1\u003e\u003cstrong\u003edistance 1300 mm \u003c\/strong\u003e\u003c\/h1\u003e\n\u003ch1\u003e\u003cstrong\u003eConnector N-jack\u003c\/strong\u003e\u003c\/h1\u003e\n\u003ch1\u003e\u003cstrong\u003eMaterial AlMgSi 0,5, all hardware stainless steel\u003c\/strong\u003e\u003c\/h1\u003e","brand":"vendor-unknown","offers":[{"title":"Default Title","offer_id":28736937459776,"sku":"00077878","price":87.95,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0223\/4803\/8208\/products\/big_wheel_for_2m.gif?v=1558459406","url":"https:\/\/www.pjbox.co.uk\/de\/products\/the-big-wheel-horizontal-polarized-omni-directional-antenna-2m-144-145-vhf","provider":"P J Box","version":"1.0","type":"link"}