I noticed a similar issue a couple of weeks ago during the CQ WW, with whatever firmware I last installed a few months ago. I was working my way slowly up the band calling stations and not retuning the ATU each time I called. Presumably because of the way the ATU stores settings per frequency which may not be correct for the antenna I am using now, every now and then I would cross a boundary to a new stored value and suddenly see a HIGH SWR warning and have to retune. After retuning the output was only 50W or so, but it recovered to full output after several seconds of calling.
My guess is it's a product of the fact that a lot of things in the K3 are controlled by software, which does not want to make sudden changes to things that would normally be expected to remain constant. It's just one of the quirks of the K3 that you get used to. ----- Julian, G4ILO. K2 #392 K3 #222. * G4ILO's Shack - http://www.g4ilo.com * KComm - http://www.g4ilo.com/kcomm.html * KTune - http://www.g4ilo.com/ktune.html -- View this message in context: http://elecraft.365791.n2.nabble.com/K3-Firmware-tp5730952p5731741.html Sent from the [K3] 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:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html