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1. Re: [TowerTalk] Tower resonance measurements (score: 1): Author: "Rudy Severns" <n6lf@arrl.net>; Date: Wed, 25 Feb 2009 09:48:37 -0800; Hi Joe, To measure tower resonances, all I'm doing is measuring the series impedance of the sensing loop while it is attached to the tower. Without the tower the loop is just an inductor up to the po; /archives//html/Towertalk/2009-02/msg00577.html (7,836 bytes)
2. Re: [TowerTalk] Tower resonance measurements (score: 1): Author: "Rick Karlquist" <richard@karlquist.com>; Date: Wed, 25 Feb 2009 10:07:17 -0800 (PST); Maybe I am missing something here, but this seems to be basically like the old grid dip oscillator techique, only you would monitor the frequency of the oscillator instead of the grid current. Rick N; /archives//html/Towertalk/2009-02/msg00578.html (8,260 bytes)

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