Bill, I had an issue very similar. The “Automatic TXGain” procedure is performed at 52 MHz. I was using a 50 ohm load attached, and at 50.125 the KAT3 have trouble matching the load. Also it appears there is not enough power out in the lower part of the band for the SWR bridge to function.
Part of the problem is I believe, the f/w switches the KPA3 ON at 8 watts instead of the usual 12……….. Performing a MANUAL TX Gain procedure on 6M may help. Here is link to post I made several weeks ago. https://www.mail-archive.com/[email protected]/msg241436.html 73 de Ben W4SC Sent from Mail for Windows 10 ______________________________________________________________ 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]

