I think you would have better results loading the antenna with a top hat.
The hat can be a single wire going back toward the ground ( inverted L) or 3
or 4 shorter wires, similar to the way you would guy a tower. It would be
better if you could get a little more height. If you don't have a high
enough tree, it's easy to make a 55 to 60' mast, even a tubular push up
tower would work. I use a 54' freestanding aluminum vertical with a single
top load wire in Aruba and it works pretty well. It's barely visible on the
right side of the house http://www.qrz.com/p40a
John KK9A / P40A
To: "TOWERTALK Reflector"
Subject: [TowerTalk] 160 meter vertical
From: "Jim Miller"
Date: Wed, 27 Sep 2006 00:34:23 -0500
This reflector - Only antennas that go on towers?
I've been thinking about putting up a 160 loaded vertical of 12 gauge wire
but did not intend to "buy" the coil. And my 60 ft tree just died and I had
to cut it down. Now I'm at about 40-45 feet, maybe. Would someone do the
calcs for a coil of 12 gauge copper wire at the feedpoint to make a 160
antenna of a 45 ft vertical? Just a starting point is fine. Capable of
full legal limit. Sorry, phone band (for now).
Any mods to the request welcome with buildable examples.
Use chain link fence top rail 2x21=42 ft.(probably galvanized steel) for the
vertical instead of 12 ga copper?
Bite the bullet and buy copper or aluminum pipe for the vertical? How big?
Coil at the midpoint?
Top hat (reasonable)?
Copper or aluminum tubing instead of wire for coil?
Would a center loaded 1" aluminum vertical of 45 ft with a top hat (5 or 6
ft or less in diameter) work? Rope over the tree to hold it in place.
I just want something relatively inexpensive I can build.
Thanks, de Jim KG0KP
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