[TowerTalk] dissimilar metal in ground

[Mark Robinson]

I used  sacrificial anodes made of Magnesium to protect my buried galvanized 
guy anchors. There was a good article in QST a while back on how to do this. 
I am not sure if it is in the QST archives but it is worth searching it out. 
It tells you exactly what to do.


Mark N1UK


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> Gentlemen,
>
> I have a tower with a galvanized base dug down in the ground. My house is
> equipped with a number of copper-clad grounding rods. The tower is 
> connected
> (via my shack) to the grounding rods.
>
> What should I do to avoid the galvanization to be eaten away due to 
> current
> caused by the dissimilar metals. As far as I understand zinc and copper
> will  make a battery cell due to the humidity in the ground.
>
> Hans - N2JFS
> _______________________________________________