On Sat, 10 Apr 2004 17:29:56 GMT, Dave Shrader
wrote:

Knowing the angles the 'Gain' is calculated by dividing 41259 by the
product of the horizontal and vertical angles corresponding to the 1/2
power point. [Note: 41259 is the surface of the sphere measured in
square steradians.]

I'm sure that most are aware that a sphere has 4 Pi steradians, but
you've lost me with your number 41259, and what is a "square"
steradian? I've never heard of such a thing.
Bob, W9DMK, Dahlgren, VA
http://www.qsl.net/w9dmk