Roger:
Those folded dipole are INTENDED to be used in front of a reflecting
steel support pole, etc. They provide a directional pattern using this
reflective material as a passive part of the radiator. I had suggested that
Ben consult with CC's engineers for additional advice; I'm sure they have a
solution for this type of distributed mounting in their idea Rolodex. [tm
for you purists out there.]
73 de
Gene Smar AD3F
----- Original Message -----
From: "Roger D Johnson" <n1rj@adelphia.net>
To: <towertalk@contesting.com>
Sent: Monday, July 03, 2006 1:48 PM
Subject: Re: [TowerTalk] Omnidirectional Antenna Installations
(Specifically) and Lightning
> ersmar@comcast.net wrote:
>> Ben:
>>
>> My recommendation would be to use four DC-grounded folded vertical
>> dipoles spaced around the perimeter of the water tank, and fed with the
>> appropriate phasing harness. Check out Cushcraft's commercial antennas
>> such as 4504P at http://www.cushcraft.com/ (click on land mobile/paging
>> and follow through to their VHF and UHF arrays.) You might be able to
>> get some technical assistance from their engineers on phasing harness
>> design for your specific app.
>>
>> 73 de
>> Gene Smar AD3F
>
> I think reflections from the tank would wreak havoc with the
> pattern using omni antennas.
>
> 73, Roger
>
>
> --
> Remember the USS Liberty (AGTR-5)
> http://ussliberty.org/
> _______________________________________________
>
>
>
> _______________________________________________
> TowerTalk mailing list
> TowerTalk@contesting.com
> http://lists.contesting.com/mailman/listinfo/towertalk
_______________________________________________
_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk
|