Yes,Orion does have serial port, I am using radio control software to computer control Orion.
I am using the Kenwood, Elcraft (mode4) (I have other software for panadapter that uses Elcraft setup. Not sure what baud rate to set? Elcraft uses 38900, that is what I am using. I have the receive audio working through the control unit, but am have problems with microphone back to the radio. there is also "hum" coming from the radio unit into the audio input of transceiver, cannot seems to get rid of it so far(am using same ps as transceiver). Any suggestions? Chuck, W6ASO