OK, I'll top-post. Lennart,
This exact thing happened to my K2 [#4398] about 18 months ago as I was getting set up outside for the Flight of the Bumblebees the end of July 2008. Weird, very wide band [like everywhere] noise on RX that sort of morphed as I tuned, equally noisy TX with nearly no power out. I got a # from Elecraft and sent the radio to Don. He found that the PLL chip was bad, fixed it, and then realigned my radio. Having it fixed was great. The realignment and improvements in how it worked were worth way more than what it cost me. Good luck, Fred K6DGW Auburn CA USA > Lennart wrote: >> Hi, >> >> I have used my K2/10w a lot the last couple of years. Always a good >> performer on CW and very good audio reports on SSB. The KAT2 tunes any >> antenna I have tried an I have used it a lot portable. At one portable >> activity last summer the radio was exposed to direct sunlight for a while >> and got very hot. At that time the output power dropped sharply and >> receive appeared to listen to the whole band at once. >> >> This has happened a couple of times since then. The receive sounds like >> severe aurora noise covering almost all signals, the transmit on CW is >> just a low power very wide noise as well. It must be very early in the >> oscillator stage somewhere, the PLL or something stop working. If I change >> band it is the same thing on the higher bands. Then suddenly gone and the >> radio is OK for a moth. >> >> Very irritating on portable expeditions or when it happens in the middle >> of a QSO. >> >> I have no clue where to start. I have tried to find a bad connection or >> bad solder. Is there a PLL reference oscillatior that could make it act >> like this, or where should I look? >> >> Regards, >> Lennart - SM6KNL >> > ______________________________________________________________ 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
