Hi Larry, My understanding from the KX3 is: 1. It should be able to handle CW duty cycle under typical circumstances without overheating. 2. If it does overheat, it is capable of self-preservation (foldback). 3. Additional heatsinking is necessary only to avoid foldback while operating digital modes like FT8 that transmit at 100% duty cycle for 30 seconds straight. 4. All that said, if you don't mind the weight and size penalty, I'd get one of them anyway, just for future flexibility.
If anyone knows about the KX2 in particular, please chime in! 73, Julie On Wed, Jul 16, 2025, 15:26 Larry Boekeloo via Elecraft < [email protected]> wrote: > I recently acquired a KX2 and use it on CW only. > > I noticed that it does get warm. Are the aftermarket heat sinks needed? > > Larry KN8N > Kalamazoo Michigan > ______________________________________________________________ > 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]
