[TowerTalk] Re; Ground Rod Plating

Wes wes_n7ws at triconet.org
Fri Apr 9 17:21:18 EDT 2021


Compared to dirt how important do you suppose that surface resistance is?

Wes N7WS

On 4/9/2021 1:06 PM, Dennis W0JX via TowerTalk wrote:
> I have a similar question. I have pulled copper 1/2" and 3/4" water pipe out of the ground after several years and have found that the surface of the pipe is a dark brown color, most likely oxidized copper. I have measured the surface resistance and note that it can be high.
> Does that mean that after a certain number of years, the effectiveness of my beverage and other antenna ground rods decreases significantly? Does that mean they should be replaced on a periodic basis?
> I've tried chemical removal of this oxidized coating but the most effective way is scouring with abrasive pads and sanding with sand paper.
> 73 Dennis W0JX
>



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