The first thing I want to try is my FT-710AESS again. One possibility is the AESS only works if everything is connected and then the rig turned on. If this fails, a phone call to MLS will be needed. I really hope this is it. Does anybody know if, on later firmware, the fan only comes on when the rig is hot?
Other plans are 10m QRP WSPR TX with my 500mW beacon and 8m FT8.
