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Who knows the math for working out V.SWR Element Slide Chart

 
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Who knows the math for working out V.SWR Element Slide Chart
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quantumradio
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Joined: 30 May 2003
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Post Who knows the math for working out V.SWR Element Slide Chart Reply with quote
For example, the Comet CFM-95SL 5/8 Wave base station antenna has a tiny diagram for working out the length of thetop element, for the correct frequency in MHz.
Does anyone know the Math for this? I'm trying to put together a detailed spreadsheet, or an actual [slide chart] that can be used to get this as exact as possible.
Indeed, should be useable for any good 5/8 wave pole adjustment.
Fri Aug 15, 2008 7:17 am View user's profile Send private message
pcs
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Joined: 18 Jan 2002
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The math is always a bit off, get a SWR meter.

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