I tried interfacing my PC directly to my radio via USB cable to get CAT and therefore automatic QSY capability, but no luck. I went back to my original setup with a RigBlaster Advantage between the PC and TS-590. Later I was was reading the RigBlaster manual and may have found a clue. It said for FSK operation, I had to go beyond the basic configuration (which I was using) and also use an RS-232 cable between the radio and RibBlaster. I never used an RS-232 cable for digital operation with my TS-590 and I didn't have a cable on hand, so I ordered one. I will try again to set up CAT when it arrives. Despite not having FSK capability, I used my radio's two VFOs and programmed the calling frequency in VFO A and a slot frequency in VFO B. After calling CQ, I pressed the VFO button to QSY. Using this method I had a successful VarAC QSO on Friday evening. 73 Brian

I think I know what the problem is: I have not been able to figure out how to set up my radio use CAT to automatically QSY. Other hams have reported difficulty getting their TS-590 to use CAT. One said the port on the TS-590 is susceptible to being damaged by static electricity. Attached e two screenshots related to my unsuccessful CAT configuration. 73 Brian

Hi Gary: I have attached a screenshot of Vara HF. 73 Brian