hello everyoneI don't understand why the FDMDUO works well with WSPR / FT8 / rtty / mode but not withOPERA / VARA / ROS???.the reception is ok via audio v1.04 not the TXI tested vb-audio-virtuel it's the same.with the ft817 or ftdx10 no problem.do you have an answer on the subject?73 Hubert / F6CWA