[TowerTalk] Top Hat Calculator

[Dave - AB7E]

I modeled a top-loaded ground plane 80m vertical (about 42 feet tall with four top hat wires made from Radio Shack aluminum TV mast guy wire) several years ago using EZNEC.  It was dead on and I didn't even need to prune the wires.  Lucky?  Probably.  Still, I'd trust EZNEC to get me pretty darn close for that sort of thing.

73,
Dave   AB7E

  


------Original Mail------
From: <john at kk9a.com>
To: <TOWERTALK at contesting.com>,
    <7g7mburo at gmail.com>
Sent: Wed, 5 Aug 2009 17:36:00 -0400
Subject: [TowerTalk]  Top Hat Calculator

Why not model the entire antenna.  I've modeled verticals with a top hat it 
AO and it seems accurate.  I imagine that you can also do this in EZNEC.

John KK9A



To: TowerTalk at contesting.com
Subject: [TowerTalk] Top Hat Calculator
From: Marc Willis
Date: Tue, 4 Aug 2009 17:44:28 -0700
List-post: <towertalk at contesting.com">mailto:towertalk at contesting.com>

Does anyone know if there is a top hat calculator out there? Appreciate the
help Marc NC7M 

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