[Elecraft] K3/KPA500/KAT500 SWR problem

[Joe K2UF]

I have had a similar thing happen to me also.  I have been in a contest on a
run freq. and suddenly the KPA500/KAT500 will fault.  This is on CW.  If I
do a 'tune' the amp/tuner will retune and I can continue.  Of course in the
few seconds it takes I will usually lose the freq.

73,  Joe K2UF  

-----Original Message-----
From: elecraft-bounces at mailman.qth.net
[mailto:elecraft-bounces at mailman.qth.net] On Behalf Of KD0Q-Glenn
Sent: Monday, December 30, 2013 9:24 AM
To: elecraft at mailman.qth.net
Subject: Re: [Elecraft] K3/KPA500/KAT500 SWR problem

I experience this as well, only on 80 meters with the KPA500 in 
operate.  Always thought that it was RF getting into the KAT500 sensing 
as I can usually back off to 300 Watts, force a KAT500 re-tune and continue.

Glenn - KD0Q

On 12/30/2013 07:59, Bill W2BLC wrote:
> This is exactly why I want to see this complete discussion in full 
> view. It is a problem here also - occurring often and without any 
> obvious cause. Putting the tuner in AUTO or in MANUAL does not stop it 
> from happening. The tuner does not seem to understand the term MANUAL.
>
> My experience is from 75 meters - with no change in antennas - and 
> will occur on oft used frequencies in the middle of a transmission. 
> The tuner just suddenly decides it is time to make noises. I do not 
> use other bands and the antenna is a dipole that present no problems 
> to other rigs and tuners (read as nothing wrong with the antenna or 
> feedlines, which have all been completely checked).
>
> AT the very least, I now know I am not alone with this problem.
>
> Thanks,
>
> Bill W2BLC  K-Line
>
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