[TowerTalk] Ground wire impedance

[kb0fhp at comcast.net]

Trouble with aluminum, is that it oxidizes, and causes an oxide buildup at the connection.  This increases the resistance.  At least for home electrical wiring, special connections have to be made.  But for radials, it will probably work....as long as a nice tight mechanical connection to cut thu the oxide film is provided....

Scott

-------------- Original message -------------- 
From: BenT <bthorson at 4smps.com> 

> 
> Has anyone mentioned Aluminum wire? How does aluminum fare buried? Does 
> it get corroded more quickly in the ground than copper? 
> 
> With the price of copper, it would be nice to have aluminum as an 
> alternative. While the conductivity is not quite as high, it's still 
> pretty good. And you could probably put down more than enough aluminum 
> to get the same resistance and still pay less than copper. 
> 
> BenT 
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