I have set up WSPR to feed data output from computer to the DIN plug on the back of my IC756PRO. A pin on this plug goes to the modulator. I know the data is going into the plug but it will not acutate the VOX and I can't, therefore, transmit. I have checked the VOX is OK by speaking into the microphone.It may be that the rig is not designed for the VOX to be associated with the data-in from the DIN plug.

I would be grateful for any thoughts from IC756PRO users.

Mike G3HKH