Hi Tom, > Yes - I have done that - I am quite famuilar with MMTTY and it works > with other software but win-test will not key my radio Not sure it can help but WT will not key the radio for RTTY operation. All of this staff is done by MMTTY itself which is started by WT (you don't have to start MMTTY by yourself). 73, -- Olivier / f5mzn