Not much different, I don't think.
- QRP-Labs QDX for PTT Config and Freq Control; works to set freq and PTT
- In the VARA modem settings (not sure if any of this is relevant):
VARA Modem souncard settings: select QMX devices.
The Drive level doesn't seem to do much on my setup for USB mode (rather than digi); the devices are set to 100% in the windows soundcard settings.
