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Re: [TowerTalk] cleaning aluminum beam elements

Subject: Re: [TowerTalk] cleaning aluminum beam elements
From: "Roger (K8RI)" <>
Date: Sat, 16 Feb 2008 14:09:25 -0500
List-post: <">> wrote:
> I am quite concerned about all the aluminum cleaning chat recently. It is  
> well known that any of these abrasive cleaners and pads will leave  
> micro-scratches in the aluminum surface. Due to the skin effect at our high  
> frequencies, 
> the rf flow will encounter a maze of conduction channels that not  only will 
> increase the electrical length of the element, can reverse the  electron 
> flow, 
> creating pattern nulls in some directions.
> The only approved method of restoring beam antenna appearance and  
> performance is replacement of the aluminum tubing. 

Preferably in  a much larger antenna.
> You can find a complete selection of NEW virgin aluminum tubing at great  
> prices at _www.texastowers.com_ (  under the  
> heading 
> "aluminum". With these low prices and availability, there is no reason  to 
> even think about any other restoration method. Who wants to be caught  
> scrubbing 
> aluminum when you could be hamming it up instead?!
> Please let me know what you need!
> 73,
> Gerald Williamson K5GW
> Owner/General Manager, 
> Texas Towers
What da ya wanna bet some one takes you serious Gerald? <:-))


Roger (K8RI)

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