On Mon, 8 Jan 2001 13:22:39 -0800 "Al Williams" <alwilliams@olywa.net>
writes:
> Can Towertalkers explain why antennas over salt water is such an
> improvement?
>
> It seems to me that if all of the RF directed downward is reflected
> upward,
> by the salt water, that is only a 3db improvement in the RF being
> directed
> upward!
>
> What else is happening?
>
> k7puc
It's actually +6db. But, with a vertical over poor ground,
the downward directed ray undergoes a phase shift, and comes
up and completely cancels the direct ray at the low angles.
That's a gain of minus infinity.
Dave Hachadorian, K6LL
Yuma, AZ
K6LL@juno.com
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