Thank you Dennis W1VE and Paul K1XM for your replies.? Resetting the EEPROM did the trick.? Before resetting, MAP 1 and MAP 2 were both showing "1."? After resetting, MAP2 was changed to "2," and everything started working normally.
I'm powering the SO2R box from a big Astron supply that powers the whole station.? I try to remember to switch off the SO2R box before powering down the Astron, but sometimes I forget, and the DC does a slow fade. Maybe that's how the MAP2 setting got changed.? Perhaps I should power the SO2R box from a dedicated wall wart connected to firm power instead.
Thanks again for your help!
Dave Hachadorian, K6LL
Yuma, AZ?
