[Elecraft] Passing Band Data from [KX3/KXPA100] to [KAT500/KPA500]

[Andy Durbin]

"where the second block [KAT500/KPA500] utilize essentially BCD for band data and an “AUXBUS” signal that I have not yet found out much about."

You can fully control the KAT500 and KPA500 using their serial interfaces without needing AUXBUS and without using the 4 discrete band interface.    I'm doing exactly that with my Kenwood TS-590/KAT500/KPA500 controller.

Start by reading KAT500 Serial Command Reference.pdf and KPA500 Programmers Ref.pdf.

I  have no knowledge of what data is available from the KX3/KXPA100 but if you need help with KAT500/KPA500 control I'll be happy to share what I know.

73,
Andy, k3wyc