You have to set TU to AFSK. FSK doesn't allow you to use these modes, since FSK mode can't generate the audio out (it uses the FSK signal of the COM port to the radio). - Jim -- Jim Reisert AD1C <jjreisert@alum.mit.edu> http://people.ne.mediaone.net/ad1c/ -- WWW: http://www.contesting.com/writelog Submissions: writelog@contesting.com Administrative requests: writelog-REQUEST@contesting.com Problems: owner-writelog@contesting.com