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1/4 wave for 20 meters

http://www.sdrplay.com/community/viewtopic.php?f=8&t=3626

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1/4 wave for 20 meters

Posted: Mon Aug 27, 2018 2:15 pm
by Joevano
I'm taking my SDR camping for a couple weeks. Thinking that 20 meter band is most active, would I want about a 17' wire for 1/4 wave on that band?

Re: 1/4 wave for 20 meters

Posted: Mon Aug 27, 2018 10:50 pm
by g1hbe
Seventeen feet is about right, but remember you'll need an earth/gnd.

Re: 1/4 wave for 20 meters

Posted: Mon Aug 27, 2018 11:39 pm
by Joevano
Would 1/2 wave be better? And, if I string it horzontal I don’t need a ground?

Re: 1/4 wave for 20 meters

Posted: Tue Aug 28, 2018 7:24 am
by g1hbe
Half waves are high impedance feed so you can get away with no ground. If your RX has a Hi-z antenna port it will match quite well.
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