[TowerTalk] w7ekb & ground rods

[Jim Lux]

On 1/19/15 8:45 AM, Ken wrote:
> It seems to me that the ground above my rock layer (@ 36-40”)  gets really dry during the summer.  Does that dry dirt have enough conductivity to be useful?  I do not know the answer to that question.
>
>
This is precisely the situation that led Herb Ufer to invent the 
concrete encased grounding electrode:  Protection of ammunition storage 
igloos in desert areas where the ground resistance was high.