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RE: Cq for antennas

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Expanding on Rick's response.

Many antenna manufacturers such as Andrew test their antennas and publish
the loads for various wind directions in their catalogues.  Check out
Catalog 38 at http://www.andrew.com/docsonline/ . Andrew also will send a CD
ROM that calculates wind loads for antennas.

Regards,
Harold O. Sprague

> -----Original Message-----
> From:	Rick.Drake(--nospam--at)Fluor.com [SMTP:Rick.Drake(--nospam--at)Fluor.com]
> Sent:	Wednesday, October 10, 2001 3:37 PM
> To:	seaint(--nospam--at)seaint.org
> Subject:	Re: Cq for antennas
> 
> 
> I wouldn't use a building code to design an antenna supporting tower.
> 
> There is an ANSI National Standard for Steel Antenna Towers, produced by
> the Telecommunications Industry Association (TIA).  The latest version of
> the document that I have is TIA/EIA -222-F-1996.  (A later copy is
> probably
> available.)  This document addresses wind loads on the towers as a whole,
> the individual structural members, and appurtenances hanging off the
> tower.
> 
> In answer to your question, the external pressure coefficients prescribed
> in TIA/EIA-222-F for appurtenances such as flat antennas range from 1.4 to
> 2.0, depending on the aspect ratio.
> 
> Rick Drake, SE
> Fluor Daniel, Aliso Viejo, CA
> 
> *****************************************
> 
> 
> 
>  
> 
>                     "arman s rivera"
> 
>                     <asrivera@edsama      To:     seaint(--nospam--at)seaint.org
> 
>                     il.com.ph>
> 
>                     10/10/01 08:11        cc:
> 
>                     AM
> 
>                     Please respond        Subject:     Cq for antennas.
> 
>                     to seaint
> 
>  
> . 
>  
> 
> 
> 
> 
> 
> in computing for the wind load of microwave antennas (let's assume the
> antennas are flat), what is the proper Cq value to be used?  (as per the
> UBC table)
> 
> __________________________________
> www.edsamail.com
> 

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