FWIW, the drift is proportional to frequency, so you should be seeing < 3 Hz on 20 meters.
It’s < 2 Hz on my lab test unit on 20. Wayne N6KR ---- http://www.elecraft.com > On Nov 24, 2017, at 4:23 PM, Edward R Cole <kl...@acsalaska.net> wrote: > > I ran intensive frequency stability tests on my KX3 in 2014 after getting it. > Adding a VE3FMN heat sink and running the temp-compensation procedure > maximum drift running JT65 on 6m showed +13-Hz drift in the first minute; no > more than 10-Hz afterward. That is good enough for JT65 (but not sure what > WSPR or FT8 require). Before installing the heat sink drift was 54-Hz before > temp comp. > http://www.kl7uw.com/KX3.htm > > 73, Ed - KL7UW > http://www.kl7uw.com > Dubus-NA Business mail: > dubus...@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 > Message delivered to n...@elecraft.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 Message delivered to arch...@mail-archive.com