New to my new Flexradio 6600M and thought I'd start with FT-8 as I try to learn the ropes. Got xDAX and xCAT and Loopback - wsjt-x is decoding like crazy - stations I'd like to work if only I could transmit. I must be missing something obvious to turn on the output stream, but all experiments so far have failed. I'm assuming something to turn on DAX is necessary, currently I have DAX channel 1 selected - maybe some other switch to enable?? Any help appreciated.