I would run a TX gain calibration using the K3 Utility and a 50 ohm dummy load. Then with an external power meter and dummy load, observe the power output on each band. Be sure the ATU is bypassed for this measurement. This would isolate the issue to the PA, ATU or low pass filter which is band dependent.
Bob, K4TAX Sent from my iPhone > On Mar 4, 2020, at 12:46 PM, Leroy Buller <[email protected]> wrote: > > I have a K3 that seems to have a problem. I am getting HI CURRENT warning > only on 20 meters. The antenna is matched. 80, 40 and 15 do not have the > issue. The current meter on the power supply does show quite a bit of > current (20+ amps) on 20 meters but when I reduce power it stops giving me > the issue on 20 meters. When I reduce power on 20 meters, the high current > goes away around 65 watts. > > Anyone have an idea what is going on? I do appreciated the help > > Lee - K0WA > ______________________________________________________________ > 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]
