On 9/14/2012 3:39 AM, Jack Brindle wrote: > Yes. It must be disconnected.
FWIW, I've never used an AUXBUS connection to my KPA500, nor have I felt the need for one. I have only the AMP KEY line (PTT) between the K3 and the KPA500. When I change bands, I hit a dit or tap my mic, the KPA reads the frequency, changes bands, and is all set to go by the time I've found someone to TX to. I'm beta-testing a KAT500, and I'm using it in the same manner. With the KAT500, the AMP KEY line is "looped through" the KAT500 -- that is, K3 to KAT500, KAT500 to KPA500. There are two RCA jacks on the KAT500 that make this easy. The only thing I use the AUX bus for is to drive a KRC2 that switches bandpass filters. 73, Jim K9YC ______________________________________________________________ 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
