"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 ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [email protected]

