I use an LDG tuner at a remote location from my rig. I see something similar to what is being discussed at times. Sometimes it will stop tuning (perhaps quickly) when it gets a match slightly below 2:1. Other times I get a much better match. The reason I assume is the algorithm used in the tuner. An SWR ratio of 2:1 is not bad at all. The difference between 1.3 and 1:1 really is not worth talking about. Part of the situation is an optimization in the tuner algorithm. Some tuner programmers assume you would prefer a quick tune to something below 2:1 rather than waiting a few seconds more for what may or may not be a better match.
73 - Mike WA8BXN -------Original Message------- From: NU7B Date: 9/19/2012 10:46:23 PM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] KX3 atu anomalies - or it is me. I can report that I see the same symptoms as Luca does, on my KX3 #1690 with latest FW V1.12 and KXAT3. When I use the "Tune" button on my antenna for, say, 30 meters, I get a VSWR readout from the display of 1.3:1. Then I engage the internal ATU to bring that to 1:1. At that point, if I put the TX back in Tune mode to send a carrier - the display shows the same VSWR as it did before the ATU was exercised. ATU mode is set to Auto. All measurements read from the KX3 display. Steve NU7B -- View this message in context: http://elecraft.365791.n2.nabble com/KX3-atu-anomalies-or-it-is-me-tp7562944p7563005.html Sent from the Elecraft mailing list archive at Nabble.com. ______________________________________________________________ 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
