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Re: [TowerTalk] Horizontal Loops

To: "Tim Makins, EI8IC" <contesting@eircom.net>
Subject: Re: [TowerTalk] Horizontal Loops
From: Paul Carr <paulcarr@barrow.com>
Date: Sun, 15 Aug 2004 10:30:47 +0000
List-post: <mailto:towertalk@contesting.com>
Tim:

Take a look at this link about HOHPL's. You might also want to take a look at the N4PC loop.

http://www.cebik.com/atl1.html

Paul
WL7PC

Tim Makins, EI8IC wrote:

So, if the loop is big enough, and has the right angles, it becomes a useful
DX antenna ? The next question would have to be: How do you work out the
required angles ?

I was just wondering what kind of wire antenna for DX might be useful if I
put up poles at the 4 corners of an acre of land.

73s Tim EI8IC


----- Original Message ----- From: "Tom Rauch" <w8ji@contesting.com>
To: "Tim Makins, EI8IC" <contesting@eircom.net>; "TowerTalk"
<towertalk@contesting.com>
Sent: Sunday, August 15, 2004 11:12 AM
Subject: Re: [TowerTalk] Horizontal Loops





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
length.

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


_______________________________________________


See: http://www.mscomputer.com for "Self Supporting Towers", "Wireless


Weather Stations", and lot's more. Call Toll Free, 1-800-333-9041 with any
questions and ask for Sherman, W2FLA.


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_______________________________________________


See: http://www.mscomputer.com for "Self Supporting Towers", "Wireless Weather Stations", and lot's more. Call Toll Free, 1-800-333-9041 with any questions and ask for Sherman, W2FLA.

_______________________________________________
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_______________________________________________


See: http://www.mscomputer.com for "Self Supporting Towers", "Wireless Weather Stations", and lot's more. Call Toll Free, 1-800-333-9041 with any questions and ask for Sherman, W2FLA.

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