On Sat, 18 Jan 2014 19:55:58 -0500, Bill W2BLC wrote: > I did a similar test using a dummy load (Mil-Spec 2 kW) with the KAT500 > in line and carried on a "QSO" while watching all the meters. After > about 45 seconds the tuner went nuts and started a retune - with no > change in frequency etc. having been made. I did this to eliminate any > futher waste of time checking and repairing non-existent antenna problems.
So far, I cannot duplicate this at all. I know some people are experiencing it, but I use it regularly on 160M in a part of the band far removed from resonance of my full wave loop, and it has never retuned. My KAT scared me one day, much like I would assume the OP was in this case. The KPA was in operate but the tuner was interrupting the PTT line, not even a blip occurred-no attempt to key the amp. I cycled the KAP through MAN/AUTO/BYP, and all was good again. No clue what was going on there. One thing that confuses me is when I first go to the 160M SSB freq at the top of the band (antenna resonant bottom of the band). When I key up and say something but forget to put out a quick carrier first, the KAT goes nuts. I would think that the fast counter (it detects a dit) would at least determine that the RF is in that band and make the switch. It won't until I put out a short carrier. I've strayed from the topic so will sit back and hope the OP will post the results of diagnostics and eventual cure for the problem. Gary ______________________________________________________________ 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
