"gareth" wrote in message ...

For those who dislike, or are incapable of, theoretical analysis, how do
they
first create, and then measure, the output from an isotropic radiator?

I'm not sure what your question is.

But to create an isotropic radiator:
Assume that all power originates at a point, such that it can radiate
equally in all directions.

Then draw a sphere around the point at a radius of r and let the
calculations begin.