The #R parameter (own or registered callsign) did not work in V16.00 or 01. Another option is to update the keyer memories with your full call in place of #R. Anyway, it's fixed now, and an updated SD.EXE is available from www.ei5di.com/sd/sdexe.zip It is numbered V16.01a, there are no other changes. 73, Paul EI5DI