"H", Have you done the TX Gain Calibration lately? If not, that may be a first step. Beyond that, I can only guess, and given the information that I have, that guess may be wrong.
73, Don W3FPR On 3/23/2011 8:40 PM, Hunsdon Cary III wrote: > I've used an Astron RS-35M power supply for about 25 years, that's what I > used when I got my K3-100 #3449. A few weeks ago, the K3 began to shut down > in transmit....25 watts seemed to be the magic number...below 25 watts, OK; > above 25, dial lights flicker (no error message or High Current warning) and > the K3 shuts down. It will turn back on immediately but the same thing > happens. > High SWR?...no, showing 1.1-1....antenna connected? YES, it does the same > thing with my tri-bander, dipole, and dummy load! Not the antenna or > feedline. > Must be the power supply, right? Well, I ordered a Samlux SEC 1223 which > arrived UPS today and that's not the problem....K3 still shuts down! > > Have I done anything to the K3....well, as a matter of fact, I used some of > my VHSL basketball officiating money to add the Digital Voice Recorder. No > easy feat installing that as the front panel has to come off but, hey, I > "built it", I can do it... and did...complete with anti-static mat, etc. DVR > works so I did something right or maybe not.... > > My Icom 706MkIIG works fine with the SEC 1223 and all the antennas, including > dummy load. Alas, the problem must be inside my K3...Absent error messages, > plus nothing in the manual under troubleshooting that covers it, I'd > appreciate some help in tracking this problem down and resolving it! > > 73, > "H", K4TM > LYNCHBURG, VA > > > H. Cary III > h3c...@gmail.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
