Check out the antenna. Maybe the radio is 'folding' back the power due to a serious antenna mis-match. The default foldback level may be 50 watts, and at power levels of 90, 100 or 110, it sees too high a VSWR and protects itself. But at 80 watts, it isn't as bad so it plods on, still suffering, but not dangerous.
...bill nr4c On Tue, 24 May 2011 16:00:49 +0200, jgaudron wrote: > Hello > (On behalf of a friend, Gerard, familiar with his K3, but not so much > with > the English language ) > When he sets the power of his K3 at 110, 100, or 90 watts, it > decreases > gradually down to 50 watts, CW or SSB. > If set to 80 watts, no change ! > Has anyone an idea ? > Best regards to everyone > Jacques de F9OJ > > ______________________________________________________________ > 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
