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Best coax for paddles
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<blockquote data-quote="Karl Winkler" data-source="post: 68095" data-attributes="member: 255"><p>Re: Best coax for paddles</p><p></p><p>It is usually advantageous to have no active elements in your antenna system if possible. Not only does boost bring up the RF noise floor and potentially desensitize your receivers, active gain stages increase antenna system intermod issues. For a 25 ft run of decent cable (RG8x is nice for this) and an LPDA, IMO no boost is needed. </p><p></p><p>Just FYI our 25 ft pre-made cables (ARG25) are made of 9913 F7, which has about 3.8 dB of loss at 100 ft @ 700 MHz. Our 15 ft pre-made cables (ARG15) are with RG8X, which exhibits about 11 dB @ 100 ft @ 700 MHz.</p><p></p><p>Here's a handy reference: <a href="http://www.w4rp.com/ref/coax.html" target="_blank">Coax Attenuation Chart</a></p><p></p><p>-Karl</p></blockquote><p></p>
[QUOTE="Karl Winkler, post: 68095, member: 255"] Re: Best coax for paddles It is usually advantageous to have no active elements in your antenna system if possible. Not only does boost bring up the RF noise floor and potentially desensitize your receivers, active gain stages increase antenna system intermod issues. For a 25 ft run of decent cable (RG8x is nice for this) and an LPDA, IMO no boost is needed. Just FYI our 25 ft pre-made cables (ARG25) are made of 9913 F7, which has about 3.8 dB of loss at 100 ft @ 700 MHz. Our 15 ft pre-made cables (ARG15) are with RG8X, which exhibits about 11 dB @ 100 ft @ 700 MHz. Here's a handy reference: [url=http://www.w4rp.com/ref/coax.html]Coax Attenuation Chart[/url] -Karl [/QUOTE]
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