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Re: [TowerTalk] Horizontal Loops

To: "Tim Makins, EI8IC" <>,"TowerTalk" <>
Subject: Re: [TowerTalk] Horizontal Loops
From: "Tom Rauch" <>
Reply-to: Tom Rauch <>
Date: Sun, 15 Aug 2004 06:12:39 -0400
List-post: <>
> If a folded dipole performs like a normal dipole, why
doesn't a horizontal
> loop perform like a rhombic ?

Because a Rhombic is diamond-shaped uni- or bi-directional
antenna normally more than 2 WL on a leg and has the angles
adjusted so the lobes from all four sides align at a low
wave angle.

A loop generally has no particular adjustment of angles or

A Rhombic also has very poor efficiency along with many
spurious lobes, and so is not really a very high gain
antenna for the physical area. The big Rhombic at ARRL HQ
for example was reported to have about the same signal as a
three element monoband yagi. They do however produce useable
patterns over very wide bandwidths.

73 Tom


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