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Old May 5th 05, 12:17 AM
Cecil Moore
 
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John Smith wrote:
Well, that is how my "meter SWR" which I constructed looks all right--but I
wished to get away having to construct a directional coupler from tubing and
pickup loops...
Only, my (metered) SWR meter uses just ONE pickup loop, I switch terminating
50 ohm resisistor and take-off ends and use the single loop for BOTH "FWD"
and "REF", with a physical switch--my thinking was it would keep the device
more "balanced" using the same pickup...


A toroidal pickup samples the current at one point. Knowing the
current at one point tells you absolutely nothing about SWR.
--
73, Cecil http://www.qsl.net/w5dxp


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