[Elecraft] KX-1/MP-1 SWR limits

[Leigh L Klotz, Jr.]

Alan's Balun from WB6ZQZ will help low impedance antennas such as 
electrically short verticals, and is an easy build.  Placed at the 
antenna base and hooked to coax with a BNC connector, it will reduce SWR 
on the coax feed, and ease the matching job of the KXAT1 at the rig end 
of the coax.

Elecraft's balun has a step-up transformer to go to high-impedance 
antennas, but Alan's Balun has a tapped step-down transformer to match 
to a Pac-12 or MP-1.  A plus is that once you find the right tap, you 
can use the Tenna Dipper and actually hope for something closer to 50R 
0X.

I built one and it was pretty fun.

Leigh WA5ZNU.
On Mon, 22 Nov 2004 7:34 pm, Vic Rosenthal wrote:
> Fred Jensen wrote:
>
>> 2.  As with all antennas, I can tune the antenna for a variety of
>> resistances and reactances.  I've been shooting for an impedance
>> magnitude of around 50 ohms.  Possibly some combination of R and X is
>> more optimum?
>
> The ideal is a resistance of 50 ohms and reactance of zero.  However, 
> if this is unobtainable, try to zero out the reactance and let the 
> tuner take care of the resistance.
>
> --
> 73,
> Vic, K2VCO
> Fresno CA
> http://www.qsl.net/k2vco