I have a Yaesu FT-920 and I am trying to get VarAC running. The FT-920 is connected to my HP Win 10 PC via a serial CAT cable and a cable from the Digital connector to the PCs RS-232 serial port. I have it installed and everything seems to work as I think it should except when I try to transmit I get no connect. My transmitter is working and I can hear the transmitted signal but no connect. I have also tried to run WinLink Express with VARA HF and I get the same results - everything seems to work correctly but no connect. After the several transmits, which sound like a digital signal, I hear what I think is the repeater is responding in morse code. Again, with no connect.
Also note that I can use my system to run FT8 on wsjt-x/Grid Tracker and it works fine. I can get QSOs through the US, South America and Europe. I think the issue here might be that the VARA modem works differently that wsjt-X and that VARA doesn't like my FT-920. I have noticed that none of these software programs have settings options that are for the FT-920, and people, including me, have to use trial & error to get the setting to work. If any of you have a FT-920 working with VARA I would like to here from you. 73s, Chuck k8ceb