Re: Faraday Cage

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "Antonio Carlos M. de Queiroz by way of Terry Fritz <twftesla-at-qwest-dot-net>" <acmq-at-compuland-dot-com.br>

Tesla list wrote:
 >
 > Original poster: "G by way of Terry Fritz <twftesla-at-qwest-dot-net>" 
<bog-at-cinci.rr-dot-com>

 > Regarding all of this cage design, about what frequency does RF become
 > highly directional (like microwaves)? Would coving the floor be relevant?
 > Will the RF simply radiate toward the floor and the earth underneath,
 > without curving upwards into the house (or horizontally and out into the
 > neighborhood)?

If you want a frustrating experiment with a Faraday cage, exactly in
frequencies close to microwaves, put a cell phone inside a microwave
oven, close the door, and call it. (Of course don't turn the oven on!)
I wonder if the oven keeps its own radiation inside...
My experience with sparks and Faraday cages say that they are not
effective to completely block irradiation. Maybe they simply don't react
fast enough. A perfect Faraday cage would require perfect conductors,
without resistance or reactance. You can eliminate resistance using
thick wires, but there is no way to eliminate reactance, inductive
reactance specially.

Antonio Carlos M. de Queiroz