CAT7200 - originally created for IC-7200 to enable PTT via CI-V for RTS(request to send)
Reported to be working for Icom IC-7100.
I could not find any reports for it to work on IC-9100.
In Win2k8.1 I'm able to transmit in WSJT, WSPR, wsprx and wsjtx2.
Makes things so easy, when internally USB soundcard in the radio can be used.
Follow this to get it going:
Great stuff, John!