Hundreds of open source software, ranging from FreeDV to FlDigi to WSJT-X, are available on Raspberry Pi.
To run them on zBitx:
- Set zBitx mode to DIGI
- Enable Hamlib in the third-party software’s setting.
- From the third party software, choose Hamlib NET rigctl as the radio.
- Set the Network server to 127.0.0.1 and port 4532 (standard for NET rigctrl)
- Set the PTT Method to CAT
- Set the Mode (if prompted) to USB
- Choose plughw:CARD=Loopback_DEV=1 as the Input/Record Audio. Alternatively, you can also choose Loopback: PCM(hw:1,1)
- Choose plughw:CARD=Loopback_1, DEV=0 as the Output/Playback Audio. Alternatively, could also choose Loopback: PCM (hw:2,0)