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Re: Topband: fixing beverage

To: "TopBand List" <topband@contesting.com>
Subject: Re: Topband: fixing beverage
From: "Tom W8JI" <w8ji@w8ji.com>
Reply-to: Tom W8JI <w8ji@w8ji.com>
Date: Mon, 23 Nov 2015 21:33:46 -0500
List-post: <topband@contesting.com">mailto:topband@contesting.com>
Any antenna analyzer with variable frequency can be used as a TDR of sorts. Anything will work.

The method is very simple. You simply observe how far apart in frequency the repeating gyrations in impedance are, and use standard 1/2 wave formulas to convert the difference frequency to distance.

I can do this with a low power VFO and a diode detector or scope. It does not even have to be a bridge. :)

73 Tom
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