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M.O. Faraday Cage



Original poster: "J. B. Weazle McCreath by way of Terry Fritz <twftesla-at-qwest-dot-net>" <weazle-at-hurontel.on.ca>


<LittleViggy-at-alum.manhattan.edu>
>
>But, wouldn't a microwave oven be designed to keep microwaves inside, 
>not the complete RF range?
>
>Viggy
>

Hi Viggy, Coilers,

Precisely, and hence its ability to keep out R.F. of a much lower
frequency than that which the microwave oven uses.  It all has to
do with wavelength and the size of the smallest opening, or slot,
in the faraday cage.  Since it's designed to keep in the 2400 mHz
R.F. generated by the magnetron, any openings or slots will be of
very small size.  This means that at lower frequencies which have
longer wavelengths, the shielding will be even more effective.

73, Weazle, VE3EAR/VE3WZL
G-1#1214

Listening: 147.030+ and 442.075+
E-mail:    weazle-at-hurontel.on.ca
           or ve3ear-at-rac.ca
Web site:  http://www.hurontel.on.ca/~weazle