Have you tried a dummy load with tuner on 40m? Have you used an analyzer on the antenna?
Sent from my iPhone ...nr4c. bill > On May 19, 2014, at 9:26 PM, "David Inger" <[email protected]> wrote: > > I have a fairly early KAT500 tuner (#275). I am using it to tune several > antennas. Recently it has stopped finding acceptable matches to a > ladderline-fed 110 ft. dipole. This problem is only on 40-meters. The SWR > anywhere in that band is around 8:1. The tuner works great on all other > bands (well, not so much on 160, but that's the antenna's problem). I also > have a 43-ft vertical and the tuner matches fine on that antenna. I > replaced all intervening coax jumpers and even the 1:1 current balun at the > transition of the ladderline to the coax in the shack. None of the above > help. > > > > Interestingly, when I bypass the KAT500 and enable the internal tuner in the > K3, everything works fine, including matching 40-meters. I have also done a > reset using the KAT500 utility program; still no help. > > > > Before, I tear into things or stop bothering the good people at Elecraft, I > wonder if any in the group has any suggestions. > > > > 73 de K6SBA > > David in Santa Barbara, CA > > ______________________________________________________________ > 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] ______________________________________________________________ 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]
