I do not have KX2 but KX3. KX3 internally set a PA temperature limit at which KX3 automatically reduces power output. Assuming that KX2 and KX3 are very similar, unless your KX2 automatically reduces power output, the PA temperature is within the safe range. I think running FT8 with 5W output is safe since I have made many FT8 QSOs with 5W. You may attach any 3rd party heatsink if you want to feel safe.
73 de JH3SIF, Keith > 2020/03/27 10:09、Steve Anness <st...@kj5t.net>のメール: > > 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:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to jh3...@sumaq.jp ______________________________________________________________ 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 Message delivered to arch...@mail-archive.com
