Set the display to show the power supply voltage and watch it while you transmit. The transmitter requires a voltage over 11 V for more than 5 W.
If the voltage is dropping below 11 V, that is the problem. This in the specifications section of the KX3 manual. wunder K6WRU Walter Underwood CM87wj http://observer.wunderwood.org/ (my blog) > On Mar 18, 2019, at 11:33 AM, Tommy <tomm...@hvc.rr.com> wrote: > > Hi folks, > > I'm running FT8 with a KX2 powered by a power supply. The rig keeps > folding back from 10-12 watts to 5 every time and it's barely even warm. > I'll set it to 12W for instance, it'll transmit fine at that level but when > done cut back to 5w. I don't transmit often enough for it to get hot enough > to protect itself. AGC is off. Any ideas? I appreciate any feedback. > > 73 de Tom - KB2SMS > > ______________________________________________________________ > 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 ______________________________________________________________ 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