[Elecraft] KAT100 Power Calibration Problem

[JeremyJones]

Checked my dummy load with an MFJ-259 and it is 50 ohms resistive, no
capacitive.  Rechecked all soldering with a lighted magnifying glass and
cleaned up a couple of joints.  Rewound T1 just to be sure it wasn't shorted
in the windings.

Still the same results of 0.035VDC on pin 3 of U5.

Jeremy
VA3ZTF


Don wrote
> Jeremy,
> 
> Check the soldering on all the relays, inductors and capacitors -
> particularly the relays.
> If the relays are not well soldered, there can be an inductor or capacitor
> in the path that will prevent you from getting a good null.
> Another thing that will prevent a null is an inductive or capacitive
> reactance in your dummy load.
> You might want to check that with an antenna analyzer to be certain it is
> a pure resistance.
> 
> 73,
> Don W3FPR





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