[TowerTalk] [Bulk] Re: [Bulk] Re: copper or galvanized ground rods in red SC clay

[Jim Brown]

On Sun,1/10/2016 8:56 AM, Roger D Johnson wrote:
> good RF ground

There is no such thing as "RF ground."

Radial systems work by SHIELDING a vertical antenna from the lossy 
earth, so that the fields (and the return current) flow in low 
resistance copper rather than lossy earth. The ONLY positive 
contributions the earth makes to an antenna system are 1) to reflect the 
radiation from the antenna to form the vertical pattern, and 2) at MF 
and LF, to support ground wave propagation.

73, Jim K9YC