[TowerTalk] Horizontal Loops

[Paul Carr]

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 at contesting.com>
>To: "Tim Makins, EI8IC" <contesting at eircom.net>; "TowerTalk"
><towertalk at 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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>>http://lists.contesting.com/mailman/listinfo/towertalk
>>
>>    
>>
>
>_______________________________________________
>
>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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>
>  
>