[TowerTalk] Peripheral ground system

[stan]

Two entirely separate issues.

antenna radials, either buried or elevated are part of the RF circuit
and act as
a counterpoise to the radiating element. If the earth under the
radiating element
had good enough, low,  (RF) conductivity, radials would not be needed

ground wires or ground rods have a resistance to earth that will go much
higher
when the exposed area is frozen. Always put ground rods well below the
frost line...

Stan, WA1ECF   Cape Cod, MA   FN41sr


Barry Kutner wrote:

> On 11 Jun 98, Pete Smith <n4zr@contesting.com> wrote:
>
> > More to the point, what does the frost line have to do with buried
> wire,
> > anyway?  If you don't bury radials that deep, why would you have to
> do so
> > with a perimeter ground wire?  For that matter, all of my feed and
> control
> > lines come across the lawn in two runs of PVC conduit, which is
> buried only
> > about 3 inches deep, and it has stayed put so far through one very
> hard
> > winter and two average ones.
> >
> > Am I missing something?
> >
> Good question, Pete. In theory, the idea of going below the
> frost line is to prevent heaving of whatever is buried, so it doesn't
> reappear at the surface some day, from earth movement of the
> freeze/thaw cycles. For that reason, my conduit was buried about 2 1/2
>
> ft (frost line abt 18 inches here).
>
> However, when my pool was built, both the propane guy and the
> electician ran their lines only about 6 inches down. When I
> inquired about that, they both gave the same answer: it's not required
>
> by code.
> 73 Barry
> --
> Barry Kutner, W2UP                            Internet: w2up@itw.com
> Newtown, PA                                   Frankford Radio Club
>
>
>
> --
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