On 'problem' frequencies, re-doing the tune soon after the first try has always brought a better swr for me, but I have no wires amongst branches which I think means you may be getting hit and miss good tunes.
David G3UNA >A quick way to find the best LC combinations manually is to tune them > for maximum receiver noise. You can refine this further by using the > K3's AFV meter to measure the noise level of the different promising > LC combinations. > > > A reminder abou auto tuning-- if you hit ATU TUNE a second time within > a few seconds of the first tuning operation it is supposed to find a > better match. However, I have noticed that the second tune sometimes > gives a worse SWR than the first one. (May be due to the variable > nature of my antenna-- bare wire through tree branches...) > > 73, > Drew > AF2Z > > > On Thu, 26 May 2011 07:31:53 -0200, you wrote: > >>Another thing about the K3 ATU is, that it sometimes stops at an LC >>combination which is NOT identical to the LC combination giving the lowest >>SWR. If that happens you can manually change the L or C to obtain the >>lowest SWR - but it is a bit cumbersome - and not what you expect from an >>automatic tuner. I only have this problem when it is raining (antennas are >>partially hidden in trees and use 450 ohm open feeder and 4:1 baluns in >>the shack) >>73 de OZ4UN >> ______________________________________________________________ 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
