[Elecraft] K3 KAT3 Antenna Tuner Tutorial

Bill K9YEQ k9yeq at live.com
Thu Oct 22 11:09:30 EDT 2009


Your feedline impedance changes when wet and the memory will change in the
tuner.  I would expect that is quite normal and a good thing!


73,

Bill
K9YEQ
K2 #35; KX1 #35; K3 #1744; mini mods
ATS-3B

-----Original Message-----
From: elecraft-bounces at mailman.qth.net
[mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Windy Dankoff
Sent: Thursday, October 22, 2009 9:02 AM
To: elecraft at mailman.qth.net
Subject: Re: [Elecraft] K3 KAT3 Antenna Tuner Tutorial

Fellows,
I'm not asking you to go off-topic with advice on my feedline. I'm  
asking only about the behavior of the ATU memory system after I've  
retuned a few band segments to wet condx, then condx return to dry.

Thanks
Windy



On Oct 22, 2009, at 7:03 AM, Geoffrey Mackenzie-Kennedy wrote:

> Dale, I suspect that in Windy's case moisture could be entering via  
> tiny holes drilled in the dielectric by windblown sand or dust.  
> Unfortunately I cannot offer any practical solution to prevent this  
> happening, because I do not use window line.
>
> 4 wire open wire feeder behaves like a lovesick octopus unless kept  
> under tension.  A very useful type of low cost feeder for long low  
> loss horizontal runs at HF and VHF though.
>
> 73,
> Geoff
> GM4ESD
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