[Elecraft] K3 KAT3 strange behaviour

Gary Gregory garyvk4fd at gmail.com
Mon Dec 6 02:44:31 EST 2010


Hi Tony,

The open wire feeder was at fault as the route I had used had a bend which
made a parallel path and when I straightened this out the issue went away.

All is now as it should....:-)

Thanks for the info mate.

Gary

On Mon, Dec 6, 2010 at 7:58 AM, Tony Estep <esteptony at gmail.com> wrote:

> >
> > On 12/05/2010 11:40 PM, elecraft-request at mailman.qth.net wrote:
> > > From: Gary Gregory<garyvk4fd at gmail.com>
> > >...using a double extended zepp I find it tunes all bands except 20M
> > > consistently but for a couple of weeks it has been fine.
> > >
> > > The KAT3 will tune to 1.1:1 BUT the swr meter fluctuates...
>
>  Gary, in my case the fluctuating SWR indication turned out to be
> attributable to my station ground setup. It seems that just a small amount
> of RF on the feedline can create this symptom. My non-resonant antenna
> comes
> into a balun, then the coax goes through a line isolator, and thence to the
> rig. There is a counterpoise arrangement connected at the balun which has
> served satisfactorily to ground everything with a couple of antennas.
> However, when I put up a new one, I got the symptom you describe. Some
> tweaking of the grounding scheme completely cured it.
>
> Tony KT0NY
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-- 
Gary
VK4FD - Motorhome Mobile
http://www.qsl.net/vk4fd/
K3 #679, P3 #546
For everything else there's Mastercard!!!


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