I feel confident that COM2 is working properly as my MicroPC-Client is working with the Kenwood software. The Kenwood software is able to control the TS480 with no problems.
If you look at my previous attachment, you will see that the baud rate is set to 9600 on both COM1 and COM2. I use COM1 at the radio end to control an Ameritron amplifier band switching device. This has been working OK for over 6 months with both the MicroPC--Client and the remote control head.
The interesting thing is that I am getting audio on the Nano App. It is connecting OK, I see a frequency readout that is accurate (only when I first connect), the RX S-meter is working, Band changing is working, Mode is working, volume control working, etc. The only problem appears to be in frequency control and frequency readout. I can see the Nano display change frequency as I tune the dial but the radio does not change frequency. If I band change, I can hear the audio difference between bands, but the display does not update. The display is erratic at times when you tune.
I would be willing to send my information to RemoteRig or Microbit for testing.
The remote site is presently snowed in, so I will have to do my troubleshooting remotely.
Thanks, Joe, K1ike