Hi Mark, The high current condition on the KPA3 (or KPA3A, if newer K3) PA module may arise from a problem in one of the lowpass filter sections if it's not purely an external fault condition.
If you have the internal KAT3 ATU, you could try putting a dummy load on the 2nd antenna port and occasionally loading up into that load on the bands on which you have observed the overcurrent condition. If that pops the DC breaker, that's a sure sign a problem exists in one or more of the lowpass filters. I would also check for connector intermittents outside of the K3 antenna connector(s). If you have a transient fault in one of the coax connectors downstream of the rig, you could draw too much current for a short time, sufficient to pop the breaker. I'm leaning toward this possible cause as a first line of investigation - the possible fault in one or more lowpass filters is a less probable cause. 73, Mike, K8CN ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
