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Old June 5th 09, 05:53 AM posted to rec.radio.amateur.antenna
dykesc dykesc is offline
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First recorded activity by RadioBanter: Apr 2007
Posts: 53
Default Using Tuner to Determine Line Input Impedance

On Jun 4, 11:30*am, Cecil Moore wrote:

That is a trivial problem. What configuration?
What does the schematic look like?


The auto tuner is a simple LC network (series inductor, shunt
capacitor) Cecil. It reports the inductor and capacitor values and the
side of the network the shunt capacitor is on (transmitter or
antenna). Of course it reports final SWR as well.

For instance, at 28.7Mhz it matched with an inductor value of 0.17
microhenries and 0 pF at an SWR of 1.0 (1:1).

My MFJ-259B reported 25-j11 at 28.7 Mhz which obviously is not in
agreement with the auto

Thanks Cecil

Dykes AD5VS