[Elecraft] K3 antenna tuner question

[David Cutter]

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
>>