Finaly my setup works with VAraC and the FT1000MP V.
wen VAraC change the frequency the rig swithes to USB, becouse you can oly select USB in VAraC.
The FT1000 has no audio input on the 5 pin packet plug in USB, only in FM, LSB and RTTY. the output to the sound card works ok on this connection. wen you select PKT the rig switch only to LSB or FM.
so i put the audio input to the rig over the phone patch plug, works fine in USB. this is also the microphone circuit, so disconnect the mike or be quiet. do not use the compressor or filtering, let the souncard do the job.
my souncard interface is the yaesu SCU-17. CAT and PTT contrlol on COM 6 (2 stop bits)
See you on VArAC.