On Sat, 08 Dec 2007 17:33:11 -0800, Roy Lewallen
wrote:

This newsgroup is one of the few
places I can think of where the silly statement I posted about moving
bodies and friction would be taken seriously.

Hi Roy,

You would best leave such crafting to craftsmen, word carpenters such
as myself.

That's almost true. It's important also to know that even moderately
accurate antenna measurements are extremely difficult and exacting to
make. Consequently, there are often cases where model results are a
better indicator of an antenna's performance than measured ones.
Antennas and models follow the same physical laws. So to the extent that
the model imitates reality, the results are the same.

This philosophy isn't restricted to antenna modeling. Circuit designers
use programs to model circuits which can't be measured. I've designed
circuitry which operates from a few GHz to several tens of GHz, which is
still in production.

And when I want to craft field designs, I use the appropriate tools
there too. My current explorations are at the low visible band
frequency of 4.54E+08 MHz with materials measuring 1nM by 1nM by 4nM.
Results are coming along without complaint (aside from segment
lengths).

73's
Richard Clark, KB7QHC