First job has to be to build remote rig RRC cables for my ts-480. As usual things didn’t go smoothly. First of all, I couldn’t get the PC to radio link to work, but some posts to the RRC forum and private email correspondence with SM2O suggested that it was best to use RRC Com port 2 for this as port one (which I was using) doesn’t work so well. I can’t explain why, but a switch to Com 2 sorted that problem out – thanks for your help Mike! The next issue was simple user error – no audio being passed from the microham DVK to the radio. I moved one connection along a pin on the microham DB37 and all was well with that.
The final problem is more serious and remains unsolved - terrible SSB audio when running more than about 10W between top band an 20m. This is clearly an RRC related problem as removing the boxes from the circuit made the radio work just fine. Looking on the RRC forum shows that others have been having similar problems and one correspondent posted a settings fix last night which I have yet to try.