I would be interested if Elecraft has any recommendations on their experience. I have used the KPA500 in one RTTY Contest at around 350w. When in a Run Mode (CQ'ing) the amp heats up pretty fast and the fan runs at a high speed continuously.
Thanks, Irwin KD3TB On Sunday, June 23, 2013, wrote: > On Sun, 23 Jun 2013 11:33:53 +0200, Arie Kleingeld PA3A wrote: > > > Running 330W output in RTTY, 50% duty cycle. > > SWR is OK: 1 : 1.1 or so. > > Ambiant temp = 25C > > > > Fan runs at speed 4, occasionally 5 > > PA TMP hovers between 65 and 70 C > > I'm guessing would be fairly normal. I sure wouldn't run it that heavy on > a 50% > duty-cycle operation (even if the factory says you can). I just don't like > running things hot. Mine hits full 747 turbine mode pretty easily. > > Gary > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[email protected] <javascript:;> > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > -- Irwin KD3TB ______________________________________________________________ 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
