Hi Jim, Since the bypass relay actuates, can you check the KPA3 (or KPA3A, depending on which generation of K3 you have) input side of the relay to verify that the relay is doing its job, i.e. that RF is making it onto the KPA3 input? A scope is best, but a simple RF probe and DMM would also suffice. The principal difficulty is accessing the KPAIO3 board on which the bypass relay is mounted.
If the relay is switching the TX drive into the KPA3, but you're not seeing any output power from the KPA3, there are several places where the KPA3 module can fail and produce that effect. Keith, WE6R, the Elecraft K3/K4 tech par excellence, may advise how best to test the KPA3 module since the component side is not accessible when it's mounted in the K3. 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
