I'm having a similar problem with k3 4290. I have qrq mode turned on but when I engage the RIT which turns QRQ mode off and then transmit, the rig shuts down. It also comes back on a different frequency when I power it back up. If I leave the RIT off, it doesn't happen. I thought it might be firmware related and had been meaning to reinstall version 436. Then, 439 was released so I just upgraded to it figuring that might solve the problem but no joy. I'm at a loss to explain this so any thoughts would be welcome. Thanks. lou WA3MIX ----- Original Message ----- From: "K4SC" <k4swissche...@yahoo.com> To: <elecraft@mailman.qth.net> Sent: Sunday, August 14, 2011 8:45 PM Subject: [Elecraft] K3 abruptly shuts off during CW transmission
> After nearly two years of trouble free operation, I have developed a > repeatable problem. While transmitting on 40 meter CW on my usual antenna > the K3 suddenly shuts down. When I repower it, it comes back up fine, but > has shifted frequency by about 1.5 kHz. This is occuring during > relatively > short transmissions. Power was at 100 watts and swr was about 1.5:1. I > tried turning power down to 75 watts and it repeated. I then switched to > a > dummy load and it happens again; as I said it is definitely repeatable. I > even updated the firmware, no joy! Any thoughts. I operated cw mostly so > I > can't say if this is also occuring on SSB. > > Thanks, Chuck K4SC South Carolina > > -- > View this message in context: > http://elecraft.365791.n2.nabble.com/K3-abruptly-shuts-off-during-CW-transmission-tp6685970p6685970.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:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html ______________________________________________________________ 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
