Every bit of antenna hardware ( coax, balun, insulators, etc. have been changed out or proven good. Connections are all solid. My KPA1500 will transmit above 800 watts for about 15-30 seconds and then the SWR jumps up and it faults out for high VSWR. I can run 1500 watts on all the other “Legacy” bands (10,15,20,40,80) with no problems. I’ve forced an STU relearn and still the same issue. The antenna B amp is a Clipperton L and that transmits at a KW out and I see no change in VSWR in the external wattmeter using all of the same cabling. It’s starting to look like something heating up in the KPA1500. Is anyone aware of a known issue for this with the KPA1500 or a known fix? I would rather do a field repair instead of sending to Elecraft from KP4. TIA Ken, KP3MM -- Ken Ramirez KP3MM ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected]
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