To: | rfi@contesting.com |
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Subject: | Re: [RFI] Auto quieting |
From: | Jim Brown <jim@audiosystemsgroup.com> |
Reply-to: | jim@audiosystemsgroup.com |
Date: | Sat, 10 Oct 2015 23:30:57 -0700 |
List-post: | <rfi@contesting.com">mailto:rfi@contesting.com> |
On Sat,10/10/2015 9:18 PM, KD7JYK DM09 wrote: Great for all-in-one feedline "Great" compared to what? Many years ago, zip cord was measured by ARRL Labs and found to be fairly lossy -- 3.9 dB/100 ft at 14 MHz -- with Zo of 105 ohms. A low dipole (1/4 wave high or less) typically has feedpoint Z of 50 ohms or lower, so it's not a very good match. 73, Jim K9YC _______________________________________________ RFI mailing list RFI@contesting.com http://lists.contesting.com/mailman/listinfo/rfi |
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