Hi Dave, Basically you shouldn't be running in Auto mode because if the tuner happens to calculate a "bad" swr it will try to retune even though it doesn't have to.
You should just train the tuner for your operating frequencies and then operate in Manual mode. Here are a couple of pdf files that may help you understand a bit more how the amp and tuner work. http://www.ke7x.com/home/k-line-introduction-and-set-up-guide 73, Fred KE7X For information on all KE7X Elecraft books and "The Successful Ham Radio Operator's Handbook", see www.ke7x.com<http://www.ke7x.com>. PS: Lulu has a 15% discount on print books. The code is LKAB317CD ________________________________ From: elecraft-boun...@mailman.qth.net <elecraft-boun...@mailman.qth.net> on behalf of n...@n1ix.com <n...@n1ix.com> Sent: Sunday, March 24, 2019 1:33 PM To: elecraft@mailman.qth.net Subject: [Elecraft] Problem with new KAT500 I just received a new factory built KAT500 a few days ago. I am using it with my K3 and KPA500 cabled with (2) E850463 Aux interface cables as in Figure 1 on page 5 of the KAT500 manual. I have recently updated the firmware on both the K3 and KPA500. I am running about 250W on FT8. The K3 output is about 12W. My problem is in "auto" mode. The tuner suddenly tries to tune, searching for a solution when it doesn't require tuning. This is without any change in frequency. This causes the amplifier keying to be disabled. There are no fault conditions on either the tuner or the amp. This occurs on any of my antennas including a Steppir that has a 1.2 SWR without the tuner. Everything is fine in "manual" mode. I have read and reread the manual and don't see anything that I am doing incorrectly. Any ideas would be appreciated. 73 Dave N1IX ______________________________________________________________ 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
