21–30 of 207 posts
I don't know if you noticed this but in my area most of retail stores have terrible cellphone reception. I'm assuming they put cell jammers in their store too
Does anyone know if it would be legal to use something like this if it was sufficiently clear with big signs? I'm thinking movie theaters or coffee shops that have huge signs "Your cell phone will not work in there. If you don't agree, don't come in", etc.
I've dreamed of doing this for a decade, even found some sources in the U.K. to purchase a few and looked up schematics for building wideband jammers. Ultimately it was the very serious approach the FCC takes that stopped me from really exploring it, even for fun. Everthing I'd read indicated that you'd be caught and fast, so I'm sort of surprised it took two years, even if it was on a highway. But lord I still might…
Does anyone know if it would be legal to use something like this if it was sufficiently clear with big signs? I'm thinking movie theaters or coffee shops that have huge signs "Your cell phone will not work in there. If you don't agree, don't come in", etc.
Does anyone know if it would be legal to use something like this if it was sufficiently clear with big signs? I'm thinking movie theaters or coffee shops that have huge signs "Your cell phone will not work in there. If you don't agree, don't come in", etc.
Passive (blocking signals using faraday cages) is fine.
Active (blocking signals by sending other signals) is very much not fine and will attract legal attention.
England is currently changing (or at least thinking of changing) the law to allow prisons to use cell-phone jammers. They can't do it at present.
I got to play with these in Afghanistan. They were installed in our SUVs but they were so huge and unwieldy. I'd be interested in seeing what setup he had. Unless the traffic was very dense and slow, I'd imagine him just forcing calls to be dropped as he passed by which doesn't really seem helpful. Restaurants/theaters/anywhere-there-be-tweens, yeah bring it on in those locales!
They're (cellular frequency jammers) down to the size of a cigarette pack, and can run off 12V aux power in your car. Range isn't terribly great (~100ft). Examples: http://www.phonejammer.com/home.php?cat=249 Mods: I posted the link (which was the first google result for "cell phone jammer") just to show what the size and cost was. If it needs to be removed, please feel free to remove my comment in its entirety.
My impression that the biggest domestic market for these is hotel operators, who secret them around the premises to force their customers to be gouged by the hotel phone. EDIT: reference: http://www.nytimes.com/2004/09/07/business/07jamming.html?_r... There is disagreement about whether this actually happens in the US; seems to be more evidence for it in the UK.
I've dreamed of doing this for a decade, even found some sources in the U.K. to purchase a few and looked up schematics for building wideband jammers. Ultimately it was the very serious approach the FCC takes that stopped me from really exploring it, even for fun. Everthing I'd read indicated that you'd be caught and fast, so I'm sort of surprised it took two years, even if it was on a highway. But lord I still might…
Really? Let's just hope nothing happens that requires someone to call 911 around you, finding themselves unable to and having emergency services be delayed.
:shrug: