My radio is still receiving very well but the transmitter is not transmitting. I had issues with an antenna switch in my shack and tried to transmit several times without an antenna, only a few feet of coax. After fixing the switch problem, the radio transmitted but would get "stuck" in transmit mode until I hit the ptt several times. Today I replaced the battery successfully (CR1220 in a holder) but the transmitter is now completely dead. Any ideas on what may be messed up and how to fix it. Or any ideas about anyone that repairs these radios. Mine is an early version.