My K3 SN 1502 with MCU 4.83 is exhibiting a strange surge in transmit power level. When the rig is keyed in CW with the power set all the way up power output surges from a high of around 140 (!) watts down to 60 watts and back in a rapid fashion. It is at it's worst on 30 meters shows at least a high power spike on all bands except 160 and 80 before it settles down to around 100 watts. If I turn the power down the cycling is much less severe but there is still a leading spike of around 140 watts. I have tried reloading the firmware with no luck. I have checked all my jumpers and connections and they are fine and the rig does this even straight into a dummy load. My power supply is an Astron RS-35M in great shape.
I should mention that we suffered a lightning strike last Labor Day weekend that took out my Ten Tec tuner, W2 wattmeter and a few other things but the K3 was not affected at all and I hope this problem is not some delayed thing from that strike! An ideas? The rig is almost six years old - maybe I need to open it up and make sure screws are all tight? 73 Bill NZ0T -- View this message in context: http://elecraft.365791.n2.nabble.com/K3-strange-power-surging-behavior-tp7590991.html Sent from the Elecraft mailing list archive at Nabble.com. ______________________________________________________________ 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]
