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Analog Angle

RF Shielding: All or Nothing at All?

Bill Schweber
Bill_Jaffa
Bill_Jaffa
10/23/2015 10:00:23 AM
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Blogger
Re: 96%
Here's an interesting article about a new conductive wallpaper, Faraday cages, and how these cages are sometimes set up temporarily to prevent leaking at news events ("leakage" here is both figurative and literal):

http://www.defenseone.com/technology/2015/10/new-material-promises-nsa-proof-wallpaper/123066/?oref=d-river

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Paul Bryson
Paul Bryson
10/14/2015 12:47:20 PM
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Newbie
Shield Solid - Switched Hole
A faraday cage does not need to be grounded. I would assume that the faraday cage around the room is a simple passive conductive surface.   Probably, the switch connects/disconnects an active repeater or passive antenna. There is not much info in the article - the switch may just turn on the outlet that the wifi router is plugged into.

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zeeglen
zeeglen
10/13/2015 10:40:12 AM
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Artist
96%
Wow, the marketeers really missed the boat on this one!

96% power shielding is of course -14 dB, but a REAL marketeer would have instead expressed this in voltage ratio using 20 log and thus would be able to claim -28 dB.

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