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

[Bob McGraw - K4TAX]

I suggest you adjust the PS voltage to 14.0 to 14.5 in receive.

73
Bob, K4TAX

On 11/15/2015 6:54 PM, Paul Taenzer wrote:
> The 'low battery' issue was the problem.
>
> I tweaked the power supply voltage up to 12.8 or so and no more noise!
>
> Thanks everyone for your assistance.