At 03:36 AM 7/19/98 -0600, T A RUSSELL wrote:
>
>Use trigonometry.
>
>TAN (angle) = Height / Distance = 1100 / 1.5 X 5280
> = 1100 / 7940
> = 0.139
>The Angle = 7.9 degrees
>
> (per my college slide rule...can't find my calculator!)
>
>Above 7.9 degrees, NO PROBLEM.
>Below 7.9 degrees, your signal will be scattered and/or reflected upward.
However .... your signal will have some radiation below 7.9 degrees, and it
will be either reflected or refracted in ways that may either add or
subtract. The right way to assess this is to use YTAD (free from ARRL FTP)
or TA (from K6STI). Simple trig doesn't cut it.
73, Pete Smith N4ZR
n4zr@contesting.com
"That's WEST Virginia. Thanks and 73"
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