[nflug] wireless access point

David J. Andruczyk djandruczyk at yahoo.com
Tue Nov 13 08:48:48 EST 2007

NOTE: a perforated faraday cage  will block/shield
only a PORTION of the spectrum.  that portiona is
determined by the geometry (hole size) of the cage,  
bigger the holes, the higher the frequencies that GET
THROUGH  (like wifi, which runs at 2.4 Ghz)  a solid
cage will block pretty much everything (depends on how
"tight" the cage is (small openings can leak a
surprising amount of RF)  Steel grid mesh may block
AM/FM radio quite well,  but not necessarily wifi.

--- Frank Pirrone <frankpirrone at gmail.com> wrote:

> Cyber Source wrote:
> > Can anyone recommend a very good wireless access
> point or at least the 
> > criteria too look for in a wireless access point
> (decibels and all 
> > that). I have a building that must be made out of
> lead, from one floor 
> > to the other, I get like 4% (it's just a little
> linksys wireless 
> > router with built in antenna). I want to get a
> good wireless access 
> > point that has some power. TIA,
> > _______________________________________________
> > nflug mailing list
> > nflug at nflug.org
> > http://www.nflug.org/mailman/listinfo/nflug
> >
> Cyber,
> I have an Orinoco AP-500 that can be administered in
> Linux from a CLI 
> application.  My house is a large 1926 wood frame
> and lath wrapped in an 
> iron mesh covered by stucco.  There are even four
> Bethlehem Steel 
> I-beams on posts in the basement supporting the
> structure.  Can you say 
> Farrady Cage, sure you can...
> Using a iPaq hand-held with a "sled" holding another
> Orinoco wireless 
> PCMCIA card I was able to walk past the two houses
> and the large church 
> to the next intersection, and diagonally across that
> street to the 
> opposite corner, and still browse the Internet.
> My current Actiontech M1424-WR wireless that came
> with a FIOS 
> installation shows 100% signal strength throughout
> the second and first 
> floors, and about 80% in the back yard next to the
> pool.  Haven't 
> repeated the iPaq test as the old dog won't take a
> charge.
> Frank
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-- David J. Andruczyk

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