Well, I've been pecking away at it and finally solved the mystery. At first it would seem to have been some kind of antenna issue so I switched over to my Arrow and had the same results....about 1 microsecond of TX and then gone. This all seemed to have started after I first loaded the memories using CHIRP. I didn't deliberately change any parameter that would stop TX on UHF but apparently there is one. I went to Function Memory 18 which allows the rig to be reset in one of two ways. The first way is a complete reset of every parameter and clearing the memories back to factory default. The second way will clear the parameters and leave the memories in tact. That was the way that finally let me start transmitting again on UHF. I am unable, at this time, to see these parameters but obviously something had to go back to factory default. hi hi Had to make a run to Huntington WV today and, of course, no one answered with whom I could try out the rig hi hi Maybe next time
73 John KI4RO