To: | garyschafer@comcast.net, "Tower and HF antenna construction topics." <towertalk@contesting.com> |
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Subject: | Re: [TowerTalk] Measuring Coax Loss |
From: | "Richard (Rick) Karlquist" <richard@karlquist.com> |
Reply-to: | "Tower and HF antenna construction topics." <towertalk@contesting.com> |
Date: | Fri, 12 Feb 2010 09:08:06 -0800 |
List-post: | <towertalk@contesting.com">mailto:towertalk@contesting.com> |
Gary Schafer wrote: > Hi Rick, > > I don't think that I have used the method that you describe. What happens > when the cable length approaches a quarter wave length? Or is this only > valid at a small fraction of a wave length? > > 73 > Gary K4FMX > After posting this, I realized that to make it work you have to add a series capacitor to the 10 foot piece of coax to make it resonant; IOW an electrical quarter wave. If the coax is quarter wave resonant without the capacitor, you can still use the same technique. Rick N6RK _______________________________________________ _______________________________________________ TowerTalk mailing list TowerTalk@contesting.com http://lists.contesting.com/mailman/listinfo/towertalk |
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