I have been using the KPA500 with my K3 with the AUX cable. Everything has worked fine since Day One. Yesterday, I hooked up a newly acquired MP MKV Field to the KPA with a cable from the PA Key jack on the KPA500 to the "TX GND" jack on the MKV. I switch between the rigs using a coax switch into the amp. Using either RF sensing or manual bandswitching, I have no problems generating 500 watts with about 45 watts drive from the MKV.
The problem is when the MKV is in receive mode. As long as the amp is in the Standby position, everything is fine. As soon as the amp is switched to the Operate position, there is major attenuation of the receive signal; I mean like from S9 to S1. I solved the problem by temporarily unplugging the AUX cable from the KPA500; receive is now normal in either the Standby or Operate mode. This works but it is inconvenient. I cannot seem to find a menu setting or some other means to allow by rigs to be connected to the amp while leaving the K3-to-KPA500 AUX cable connected. Any suggestions? 73 de K6SBA David in Santa Barbara, CA ______________________________________________________________ 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
