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> How about a Faraday box, by the door? Not as easy as one may think. If you put a phone in a generic waterproof metal box (metal junction or biscuit box for i
by nbernard 2mo ago
> How about a Faraday box, by the door?
Not as easy as one may think. If you put a phone in a generic waterproof metal box (metal junction or biscuit box for instance) and call it with another one, most of the time it will still ring...
- pluc 2mo agoA Faraday box that doesn't block signals is just a box.
- inigyou 2mo agoThe point is how do you know it's a Faraday box?
- wackro 2mo agoPresumably if you're driven by paranoia to buy or make a Faraday box you will be paranoid enough to try putting your phone in it and calling it
- nbernard 2mo agoThe problem is a Faraday box only attenuates signals. And it usually does not attenuate all frequencies identically. So your test may seem successful, but the box not be enough closer to a tower, or if your neighbor added a new AP, or if cell phone frequencies changed since you bought and tested it. Moreover, if you have to open and close it often, you have to be careful that the attenuation doesn't degrade. All that to say that the "Faraday box solution" would mean testing it regularly with professional instruments and all that. It is far simpler and cheaper to ask guests to leave their phones in their cars.
- ChoGGi 2mo agoI bought a Faraday box for my car keys. I made sure it was big enough for my phone, then used a network monitoring app.
- aidenn0 2mo agoCar keys usually use a wavelength of 1 meter; networking on your phone is going to be typically shorter than 15cm (though varies widely based on geographic region and carrier). A faraday box for your phone might not work for your car keys.