On 4 Jan 2007 04:30:21 -0800, "Telstar Electronics"
wrote in
. com:

U-Know-Who wrote:
So, you have decided that 9 square feet is about right based on what theory?
I've built yagi's, ground planes, collinear, dipoles, etc. I was just asking
you to back up your theory. This is not some cutting edge science that
cannot be verified with today's math. Please don't allow yourself to be
proven a blowhard again. You made the statement, back it up.

I only said that a 3'x3' area of ground plane would be the minimum size
that I would recommend for such an installation. Never hinted there was
an exact formula to substantiate that recommendation.


Actually, there -is- an exact formula for the surface area of a ground
plane. And at 11m it's nowhere close to 3' x 3'.