FWIW, my KX3 handles 15 watts digital with no issues as far as I can tell. I did the temperature compensation and have a third party heatsink, though. I haven't looked too much at third party heatsinks for the KX2 but I imagine I'd probably want to follow that 50% advice even with one installed simply due to its physical size.
-Mooneer K6AQ On Thu, Mar 26, 2020, 10:47 PM Joan via Elecraft <[email protected]> wrote: > The KX2 will automatically fold back its power (responding to temperature) > to prevent thermal runaway or damage to its finals > > That being said, it is routinely recommended that when running any 100% > duty cycle mode (e.g. typical digital text modes or FM Phone) one reduces > RF output to 50% of rated output > > 73 de KX2CW > Joan > > Darmok and Jalad at Tanagra, said Piglet. > Shaka, when the walls fell, said Pooh. > > > On Mar 26, 2020, at 18:09, Steve Anness <[email protected]> wrote: > > > > This question was posed last October by another on the reflector in > regards > > to the KX3 but does not look like there was a response. I had posed the > > question once to Elecraft support and believe my email got lost in the > > fray. When I posted the question to Elecraft support it was a month > after > > I received my KX2 and I was running 10 watts with it and it had gotten up > > to 61C which is what prompted the question. > > > > I have been running FT8 at around 5 watts recently and I see it getting > up > > to 51C. > > > > At what point should I stop operating and let it cool down? I love my > KX2 > > and don't want to damage it. I do know that these are used in fields by > > many so perhaps I am just being paranoid. > > > > 73 de KJ5T > > > ______________________________________________________________ > 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] > ______________________________________________________________ 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]
