[Elecraft] KPA500 RFI problem

[David Gilbert]

True.  That is a possibility, of course ...  that on 12m the voltage 
maximum just happens to hit a weak spot in his feed system.   In that 
situation, adding some feedline could shift the maxima to a location 
better able to handle the high voltages.  I think I'd still want to find 
that weak spot before I did anything else, though.

73,
Dave  AB7E



On 1/8/2013 8:09 PM, Rick Bates wrote:
> I was stating what worked for me on 80m.  It shifted the voltage peak to
> another portion of the feed, though the SWR was the same.
>
> It brought the apparent SWR without the KAT500 from 24:1 down to a range
> that was more acceptable to the tuner.
>
> With the collection of 'stuff' that most of us collect, adding a chunk of
> coax or window line is simple enough to try.
>
> Rick wa6nhc
>
> -----Original Message-----
> From: David Gilbert
>
> He said that his SWR on 12m was already low, so I don't see how that
> helps a lot.
>
> Dave   AB7E
>
>
> On 1/8/2013 6:40 PM, Rick Bates wrote:
>> Try altering your feedline length (which means resetting the KAT500
> memories
>> too).  I had a similar issue on 80M.
>