To: | Jim Miller <jim@jtmiller.com>, topband@contesting.com |
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Subject: | Re: Topband: 160m RX antenna testing surrogates? |
From: | "Richard (Rick) Karlquist" <richard@karlquist.com> |
Date: | Sat, 20 Dec 2014 12:36:59 -0800 |
List-post: | <topband@contesting.com">mailto:topband@contesting.com> |
The AM BCB band is unique in that it is virtually never limited by noise; rather every channel has deep layers of QRM to deal with. The BCB is very useful as a sanity check for beverages, because they are still very directional in the BCB. If I have a broken beverage, the directionality will be off and/or signals will be down. None of this guarantees that the beverage will actually hear weak signals better than some other antenna. For that, I use WWV/WWVH on 2.5 MHz. I can compare signal to noise ratios of antennas to be tested. I make sure that my tuned loops can tuned to 2.5 MHz. Rick N6RK _________________ Topband Reflector Archives - http://www.contesting.com/_topband |
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