At 09:08 PM 2/4/02 -0500, Tom Rauch wrote:
>I guess then we can ignore things like buildings (with wiring), the
>slope of the grade, utility lines, and other conductive objects and
>still accurately predict results within ten feet of effective height
>when the antenna is a few wavelengths high?
I don't think you read my whole message. Modeling with NEC has been used
to compute the effect of aircraft carrier superstructure in the vicinity of
antennas, so I don't think what you describe is out of reach. But I wasn't
suggesting that, only that you could combine pure antenna modeling with
terrain modeling and get a good starting point for antenna experiments.
I have my entire one-tower station modeled in EZNEC/NEC-2. It is
perilously close to the maximum segments allowed by my modeling software,
and I am not entirely comfortable with the fidelity of some of the
components of the model, but I would sure use it as a starting point for
assessing new additions to the total system. Wouldn't you?
73, Pete N4ZR
Sometimes a tower is
just a tower
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