Are you going to use AFSK of FSK. See:

After deciding you are going to use AFSK or FSK see:

This might help too:


If you have further questions include what transceiver you are using and which mode (AFSK/FSK) you are using to get more direct answers.


Dave, w6de


From: [] On Behalf Of James Wolf
Sent: 28 May, 2018 22:56
Subject: [DXLab] FSK


Has anyone successly configured Winwarbler or MTTY for RTTY FSK?

I’ve gone through the help and config setup for the umpteenth time and I only get one tone when sending.  I am using the EXTFSK64 add-on.  I also tried MMTTY by itself and get the same thing.


Jim,  KR9U


Join to automatically receive all group messages.