Towertalkians:
With regard to the sinking  of ground rods:
I have found that here in the N. Texas area where we also have a caliche 
layer, along with a sandstone layer, that even a post hole setter won't do 
the job!
My solution was to rent a Godzilla-sized hammer drill  and with a little 
patience and a cold 807, the the ground rods were in -- in no time!
Val
W5PUT
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