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
_______________________________________________
Elecraft mailing list
Post to: [email protected]
You must be a subscriber to post to the list.
Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/subscribers.htm
Elecraft web page: http://www.elecraft.com
