[Elecraft] Band-specific low output

[Roger Rose]

I had a weird thing happen with my K3 this morning. I tried to check into a regional 75 meter net this morning and they couldn’t hear me. I looked at the display and had no power output deflection. I’m using the rear apron mic connection and I’ve had problems with it coming unplugged, but that wasn’t it. I looked at the meter on my external tuner and it showed a tiny bit of output so it wasn’t a mic issue. I moved up the band and changed to CW. I was set for 100 watts and I was showing 50. I changed to 40 and had the full 100 watts out. Moved back to 75 and then I had full output. Powered it off and back on…still good. Any ideas?