I have a related question: I purchased my K2/100 only a month ago, second hand, SN 5818. I've experienced "PA HOT" shut down on several occasions when running 100Watts out, and less frequently but it has happened when at 50Watts. I've witnessed the discussion of setting Cal tPa to ambient temp. C, and with my indoor/outdoor digital weather monitor on my operating desk, I see 81 F as a normal workstation temp, which converts to 26.95 C...... that is the figure I enter into the Cal tPa setting. I can then operate CW for a few minutes, noticing that the fan does turn on. Unfortunately, since I do not continually keep my eyes on the digital display as I continue my CW qso, I have been frequently surprised to note that I have experienced a Pa Hot failure and my output has shut down (although the side tone monitor continues to yield my keyed side tone).
I have now noticed that when that failure occurs, I can power down the K2 and immediately power it pack on, and I then can continue operating with full output power. This almost appears as if the Pa Hot error is a false indication, and even though it initially shuts down my output power, it seems strange that it resets to normal ops when power is cycled off and on again. I have failed to notice if the fan comes on upon the power off/on recycle..... I'm thinking it is not on at that time. I'll try to be more observant on future failures but in the meantime I wanted to mention this failure in case I am overlooking something or maybe doing something to create harm by powering off and on the K2. PS. While attempting to change the failing conditions, I have increased the Cal tPa temp up to as high as 33C, and I believe that is where it was set with my most recent failure. Any ideas out there? Thanks. Mike, K5MP -- View this message in context: http://elecraft.365791.n2.nabble.com/K2-KPA100-Temp-Cal-Room-temp-or-radio-temp-tp7613845p7615600.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]
