[Elecraft] Subject: Re: Elecraft] KX2

[Edward R Cole]

Or just feed a grounded 50-foot tower with a 1/4 wave long stub 
alongside it space a few inches.  3/4 wave at 14-MHz is  53 feet and 
the 1/4 wave stub would be 17.7 foot.  Hook your coax across between 
stub and tower and slide it up till you find a 50-ohm match.  I've 
used small worm-gear hose clamps to secure the coax temporarily.
.
If you have a tri-band or 20m yagi mounted on top of the tower they 
will provide top-hat loading that will make the tower look higher 
(lower in frequency).  Good exercise for those using telescoping 
towers which one could match by raising or lowering.

But I have to say that my tribander at 50-foot always works better on 
10m than the 10m J-pole. So I hardly use the J-pole (serves as nice 
guy mast for ends of my 80/40m invert-V).

Too bad I do such little operating on HF <smile> **just repaired my 
1296 and 900-MHz systems on another tower.

73, Ed - KL7UW



SNIP----------------
Also, what's wrong with making a true "Zepp" antenna on the higher bands by
adding the required length of twin lead for the ?? matching section?  On
20 M and up, this would result in a fairly easy length of wire to deal with.

Anybody tried that approach? I know the "J-Poles" are popular on VHF, but
how about a 20 meter wire J-Pole?

73, Charlie k3ICH


73, Ed - KL7UW
http://www.kl7uw.com
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