[Elecraft] K3 high pitched tone and noise when keying the mic

[Don Wilhelm]

Paul,

Do you have the monitor gain up *and* have SPKR+Phones selected in the 
menu?  If so, the monitor sound from the speaker will be picked up by 
the microphone and result in 'squeals'.

73,
Don W3FPR

On 11/15/2015 4:36 PM, Paul Taenzer wrote:
> I recently developed a high pitched tone and seemingly random noise when
> keying the mic with either PTT or VOX
>
> The K3 has been set up and running brilliantly (as one would expect) for 5
> years with no changes to the set up recently.
>
>