I have tried TR690 with my FT2000 but the radio communication failed as before. >From TR690 with ALT+B, QSY is available, but QSY from the radio is not recognised by TR690. It seems one way communication. And if I start TR with "TR SERIALDEBUG", TR stops and no response. I hear TR supports FT2000 so hope this problem solved. Hiro JI1RXQ