Yuri Blanarovich wrote:
"Mike Coslo" wrote in message
...

Roy Lewallen wrote:


If you'll read what Tom has posted, or a description in any good text,
you'll find that the whole circumference of a "shielded" loop radiates.
The field comes from current on the outside of the "shield", not from
some field penetrating the shield. That's my theory. It's the same as
Tom's, and that of every respected author I've read.

Game, Set, and Match, Roy. The explanation and the everyday application of
the concept of non-ferrous shielding are both simple and elegant.

Seems like the thread stopper to me! I suspect it will continue anyhow....
8^)

- 73 de Mike KB3EIA -


Before you pronounce your verdict, why don't youze guyze build the shielded
loop antenna as I described and test it. Try version without shield, see
what IS antenna, and try the same antenna with shielded loop. Then run
electric drill or another source of arcing or interference in the vicinity
and see if there is shielding effect or not. Then pronounce your verdict and
pontificate on how electrostatic shields suppose to work. Otherwise you look
silly like W8JI cult worshippers.

Yuri, you is way too intense! I don't pontificate, and my silliness is
genetic, not involved in any worship of W8JI.

I very much expect that any effects that you see may be due to another
cause than what you attribute it to. I don't know if your antenna is not
completely shielded along it's entire circumference or not. I wonder if
you could put your antenna inside a Faraday cage and see different
results. Perhaps even try the unshielded antenna in the Faraday cage.

Unshielded antenna in cage should equal shielded loop in open. If it
doesn't, I'd look for a problem in the experiment first, not a problem
in the theory.

- 73 de Mike KB3EIA -