My K3 serial number is 1322; it is of 2008 vintage. I loaded beta 5.26 firmware because I installed a newly purchased KXV3B transverter/preamp board.
Today I noticed that new firmware version 5.29 was available. When I read the release notes, it looked like the release would not affect my old K3, only newly minted K3S rigs. But when I checked CONFIG:EXT ALC under version 5.26, I found the setting to be ON t-5.5. I changed this to OFF t-4.0, the default according to the K3 manual. (Numeric keypad 1 toggles between ON and OFF, although the manual isn't specific.) Then I cycled the power on my K3, a normal shutdown and startup. Sadly, CONFIG:EXT ALC was back to ON t-5.5. At that point, I decided that I had better install firmware version 5.29. After its installation, I found the default CONFIG:EXT ALC setting, which persisted after power cycling. This is my preferred setting, as I have nothing capable of more than 100 watts. I also tested my K3 to see if version 5.29 would incorrectly reset a non-default CONFIG:EXT ALC back to the default after power cycling, but that problem did not occur. Anyone who has loaded firmware version 5.26 would do well to replace it with version 5.29 and then to check CONFIG:EXT ALC for his preferred value. Incidentally, I also looked at CONFIG:ADC REF, which I vaguely recalled setting some time back. It showed the non-default value 4.94 under both firmware versions 5.26 and 5.29, which caused me no concern. 73, Paul W8TM ______________________________________________________________ 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