Mine happens only when LSB is selected on the upper bands. On some bands it¡¯s louder. If I switch to USB, CW or Digi I don¡¯t hear it. On 160 to 20 meters it¡¯s not there. I also notice it will increase in volume then decrease. It will also be there one second then be gone and then come right back.
It frustrating. It sounds like it could be processor or logic related the way it turns on and off.
The up side is that LSB isn¡¯t used for the most part on the upper bands.?
I would love to resolve this. I don¡¯t see any obvious problems on the board.?
Don.