[Elecraft] MIC + Line-In Feedback Noise

[Lyle Johnson]

> When MIC + LIN is turned ON I get feedback from somewhere when I key with the foot switch in SSB without saying 
> anything.
> If I turn MIC + LIN to OFF the feedback is gone.

I am not sure why you have MIC+LIN turned ON, but I suspect you are 
getting noise pickup from the microphone.  Perhaps you have MON turned 
up to hear the outgoing signal and the microphone is near the speaker so 
you get a feedback loop.

73,

Lyle KK7P