> One model might be to consider the base as a resistor (the
car body) and a
> capacitor and resistor in series (the coupling to the
ground and the ground
> loss).
>
> Just that plates a fraction of an inch off the ground are
coupled much more
> strongly than a car body, and the effect isn't negligible.
That's why the closer a small counterpoise is to earth, the
greater the losses are. The worse case would be when it is
connected to the lossy earth.
_______________________________________________
See: http://www.mscomputer.com for "Self Supporting Towers", "Wireless Weather
Stations", and lot's more. Call Toll Free, 1-800-333-9041 with any questions
and ask for Sherman, W2FLA.
_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk
|