[TowerTalk] 80m Delta loop on 70' tower

[Tony Brock-Fisher]

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