>The ground you put in the concrete i.e. the rebar would not be optimum.
>Concrete is a very good insulator. The common 8' copper clad steel grd rod
>is hard to beat.
? At 1.8 - 30 MHz, in garden-variety soil, RF penetrates only a few
inches. Thus, an 8' gnd rod has substantially less RF-R if it is buried
horizontally, just under the surface than if it driven in vertically.
However, a vertical ground rod works ok at 60Hz. At the frequency of
lightning {c. 100kHz} horizontal would still have the least RF-R. In
order to protect from a direct strike, the feedline needs to be
disconnected and tossed out the window.
>...
- R. L. Measures, a.k.a. Rich..., 805.386.3734,AG6K,
www.vcnet.com/measures.
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