I think I'm missing something obvious... it's been a long time since I've done any digital modes, and never with this PC. I'm simply failing to get it to transmit.
Running WSJT-X v2.7.0 (installed this morning) connected via USB to the IC-9700. CAT control is working, as it's hopping back and forth between 2m and 70cm on receive. In the WSJT-X configuration, radio tab, PTT Method is set to CAT. The Test CAT button goes green when clicked. The Test PTT button turns red, but the rig does not go into TX.
I tried clicking 'Tune' in the main window of WSJT-X, but again, the radio does not transmit. I tried to use VOX instead by changing the PTT Mode in the configuration and enabling VOX on the rig, but no joy.
I'm certain that I have the correct soundcard settings in WSJT-X. Just for fun, I temporarily set the WSJT-X output to the PC speakers as a test, and the Tune button gives me a nice loud tone when I do that.
In the menu of the 9700, Connectors...Mod Input is set to USB, and I have both bands set to USB-D, so in theory it should be getting audio via USB. But that does not seem to be the case.
So in summary, I can't get WSJT-X to key the rig, either via CAT or via VOX. Any ideas?