[TowerTalk] 80m Delta loop on 70' tower

Tony Brock-Fisher barockteer at aol.com
Fri Feb 5 04:06:52 PST 2010


If you feed the loop at the bottom middle, it will be horizontally polarized, and be pretty doggy for DX  because of it's low height above ground.

If you feed it 1/4 wave down from the top on one side, it will play much better for DX because it will act like a pair of phased verticals.

Neat thing is as a vertical it needs no radials - the bottom leg acts as a counterpoise.

>From a 70' tower, rig a 20' crossarm to support the tops of a pair of loops, and feed them simply with 75 ohm coax for matching/loading, as in:



http://www.cebik.com/content/a10/wire/hsyg.html


This is a kick butt antenna, I claim as good as a 4-square, just lacking the ability to switch in as many directions. I have mine set up pointing at EU one way, covers most of the US the other way for SS...

This is such a great antenna I gave mine a rebuild after 10 years.


-Tony, K1KP


More information about the TowerTalk mailing list