I had the same problem with the K3/KPA1500 combination. I recalibrated the K3. Then I made sure I don't run the K3 at exactly 5W or 50W. The problem has not reappeared.N2TK, Tony
-----Original Message----- From: Mikael Larsmark <[email protected]> To: [email protected] Sent: Sat, May 20, 2023 3:45 am Subject: [Elecraft] Power spike early K3 Hi, We have an early serial K3 which has got an issue with power spikes. I have done a TX gain calibration without it making a difference. The spike happens mainly when you have changed to a new band and during the first transmission. After that the spike is a lot smaller and not much of an issue. Anybody have any ideas of what this could be because of? It kind of makes it impossible to run a solid state amplifier on the radio and probably not good for the tube amplifiers either. /Mike, SJ2W ______________________________________________________________ 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 Message delivered to [email protected] ______________________________________________________________ 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 Message delivered to [email protected]
