[Elecraft] KAT3 Problem

Cady, Fred fcady at ece.montana.edu
Mon Sep 29 08:28:24 EDT 2008


Thanks Tom. Been there done that and that's what it acts like but the
ant selection is OK. I can bypass the atu and it sees the dummy load
fine. Would there be any filters or anything that are used on 7 and 24
only?
Thanks,
Fred
 

-----Original Message-----
From: Tom Hammond [mailto:n0ss at embarqmail.com] 
Sent: Monday, September 29, 2008 3:04 AM
To: Cady, Fred
Subject: Re: [Elecraft] KAT3 Problem

Fred:

Double check that you somehow didn't manage to get ANT2 set as the
default antenna selection for those bands... if so, you're probably
tuning into NO ANTENNA...!

73,

Tom   N0SS

At 21:48 09/28/2008, you wrote:
>Hi,
>Just getting K3 going and KAT3 does not tune properly on 7 and 24 MHz.
>I'm pretty sure it worked earlier today on a 40 m dipole I put up but 
>now it doesn't tune the dipole or a dummy load. When trying to tune the

>dummy load and checking the L & C I get Ca = Ct=0.66 nF and L=0.75 uH 
>and 2.5:1 SWR. If I change Ca = 0.04 nF and L = 0.1 uH I get 1.0:1 but 
>when hitting tune again the KAT3 goes back to the previous 2.5:1 
>settings. All other bands except 24 MHz seem ok.
>
>Any thoughts?
>
>Thanks,
>KE7X
>
>Fred Cady
>Fcady at ieee dot org
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