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Fwd power meter

Posted: Wed Oct 28, 2020 12:32 am
by kf6zok
On my 5000a the Powersdr power meter says 80-90 watts out. But my external meter says 100+ out. Is that normal? Just got the radio back from having the calibration done.
Thanks
Cecil lale
KF6ZOK

Re: Fwd power meter

Posted: Wed Oct 28, 2020 10:28 pm
by N0DFF
For what it's worth, my 5000 agrees exactly with my LP100A watt meter. If there is much coax length between the radio and meter, you could see a difference..

Re: Fwd power meter

Posted: Sun Nov 01, 2020 3:44 pm
by ke9ns
If your antenna is not naturally resonant to the frequency your on, then any coax separation between meter circuits will show different readings (in both SWR and power). But they should match when your using a 50ohm dummy load. To complicate things further, some meters show power output as NET = Fwd-Ref, instead of just Fwd.

Darrin