After playing with WSJT-X on QO-100 it was about time to experiment with some of the ancient modes on SAT. With Abdel, M0NPT operating C5C I did some QSOs in RTTY and PSK31. But obviously it was a pain to setup the IC-9700 to work with fldigi. Hamlib does not cope with the SAT mode of the TRX. Thats why I am using the rig with two VFOs. But in fldigi it would use the sound input from the TX VFO for decoding rather than the Sub-VFO for RX.
Now that I had some time to prepare the station for an upcoming QSO with DF90TJU I had a deeper look at the sound settings of Fldigi and encountered two small checkboxes that obviously allowed to switch the audio sources between the two channels of the soundcards:
And voila: Now it is using the audio stream of the Sub-VFO for RX and the Main-VFO for TX. Not that I have been looking for this for ages … Simple fix and it works. Looking forward to some RTTY, PSK31 or Felhell QSOs on QO-100 now.