On Sun, 06 Jan 2008 19:28:27 GMT, Bruce in alaska
wrote:

Now if one figures the Inverse Square Law into Distance from the Antenna
Face, the Power Density is even LESS significant.....

To be pedantic, the inverse square law only applies to point sources,
which the antenna is not at some of the distances under discussion.
At a distance of, say, twenty times the source diameter,or more, the
inverse square law is a fair approximation, as the antenna is more
nearly a point source.

Casady