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[antennaware] question on ground system for good ground

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Subject: [antennaware] question on ground system for good ground
From: (Pete Smith)
Date: Sun, 22 Jul 2001 01:51:32 -0400
At 10:44 PM 7/19/01 -0400, Gary Breed wrote:
>By the way, the FCC graphs show this area (30 mi. East of Atlanta) to have a
>conductivity of 2 to 4 mS/m.  Under my station, there is zero to a few feet
>of red clay on top of granite bedrock (I have an exposed 40x100 ft. granite
>ledge just South of the tower).  Localized conductivity is less than 1 mS/m.

Are these FCC graphs web-available somewhere?  I would be intrigued to know
what the local geology (karst - limestone holy and cracked like swiss
cheese, under soil of varying depth) produces in the way of ground

73, Pete N4ZR
No, no ... that's WEST Virginia

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