[Elecraft] Re: FM Broadcast Station Interference

[Vic Rosenthal]

TBald53892@aol.com wrote:
> 
> 1. I am receiving the crud with NOTHING attached to the K2 but the power
> cord. Right now its coming in especially well on 14.068 MHz.

OK, so it looks like the signal is being picked up by the K2 itself.

One possibility is a parasitic resonance in one of the inductors.  That is, the
inductance plus the capacitance between turns resonates someplace near the
frequency of the FM station.  This is more likely to happen with a solenoid-type
coil than a toroid.  One thing you might try is to make an fm-band dipole hooked
to a little coil.  Then open the K2 (top cover and bottom plate) and move the
little coil around.  See if there's a place that causes the interference to
increase.

PLEASE, when you finally figure this out, post the results!

Vic K2VCO