[Elecraft] K2 Distorted TX audio on 10m and 12m only

[Don Ehrlich]

I have a lot of distorted audio problems due to RF getting into my MH2 
microphone or the mic cable.  It is worse on 12M, 10M, and 6M.  The higher 
the frequency the worse RF pickup problems generally are.  If the rig sounds 
normal when connected to a dummy load (or with power turned down to zero) 
then it is certainly an RF pickup problem.

Don K7FJ


> My K2 sounds fine on all bands on all modes, both TX and RX except for 10
> and 12m. On those two bands, RX is fine, but TX sounds horrible on all
> modes, LSB, USB, and CW. It puts out full power though. Any ideas?
>
> I'd really like to use this at field day. Of course 12 and 10 probably 
> won't
> even be open...
>
> Thanks,
> Jeff
>