[Amps] Autek WM-1 calibrated...

[KG8YN]

I have one too.  They do pick up stray RF.  I haven't fixed mine, but I would bypass and use a shielded cable to the remote pickup, put a back plate on the unit and ground it, add a metal power jack to your plate with a pi-net RF filter in series with boards dc input.

That should nullify or greatly reduce the effect.  1 watt of UHF from my link HT will raise the Autek's needles.

I think it is a basic good design, but they missed the boat on RF proofing.

Jim Lewis
KG8YN

----original message---
Hi all I'm having an issue and I think that it's the wall wort.  The meter
tested fine at low power on the test bench.....300 watts.  When I put it in
line on the station with an excellent station ground(ex combat comm) the
meter reads some 400 watts higher PEP than the Alphas internal LED's read.
I'm thinking RF is being picked up on the power cord from the wort to the
meter.
any other ideas?
Cam
WA4JKW