I went ahead today and lashed up a temporary set up so I can key up my old Kenwood TS-440SAT from my sound card. I don't have separate PTT COM serial port keying (only CI-V rig control not supported by this software) and so can not use my ICOM 756 Pro 2 for now.
The 440 seems to test fine with Multipsk but oddly, when I run the vbdigi program, I can key the rig via VOX operation and send out what seems like a reasonably good signal, but I can not detect anything on the waterfall. It just remains blank no matter what. I must be doing something wrong. Suggestions? 73, Rick, KV9U