Re: Any way to jam cell phone/bluetooth signals in a 110 acre facility?
You can legally jam whatever you want on your own property just like you can legally keep airliners from flying over it. In other words, NO. Try jamming some police, homeland security, or airport radar frequencys on your property and you'll probably find out just how legal it is.
In the United States, cell-phone jamming is covered under the Communications Act of 1934, which prohibits people from "willfully or maliciously interfering with the radio communications of any station licensed or authorized" to operate. In fact, the "manufacture, importation, sale or offer for sale, including advertising, of devices designed to block or jam wireless transmissions is prohibited" as well.
Jamming is seen as property theft, because a private company has purchased the rights to the radio spectrum, and jamming the spectrum is akin to stealing the property the company has purchased. It also represents a safety hazard because jamming blocks all calls in the area, not just the annoying ones. Jamming a signal could block the call of a babysitter frantically trying to contact a parent or a someone trying to call for an ambulance.
The Federal Communications Commission is charged with enforcing jamming laws. However, the agency has not yet prosecuted anyone for cell-phone jamming. Under the U.S. rules, fines for a first offense can range as high as $11,000 for each violation or imprisonment for up to one year, and the device used may also be seized and forfeited to the government.
This is from the "Terms and Conditions" from a cell phone jammersite that sells jammers:
http://www.phonejammer.com/
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The use of cellular telephone jamming equipment is prohibited in some countries. It is the responsibility of the customer to ensure that they have the legal right to import these products before purchasing from us. Upon purchasing, the customer becomes wholly liable for any legal issues that may occur as a result of the importation and/or use of these products in the destination country.
a. Phone jammers are not marketed for sale for use in the US and/or to any customers residing within US jurisdiction.
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Just because nobody's been prosecuted for it yet doesn't mean it's legal. It'll probably be pretty painful financially if you do manage to attract enough attention to get prosecuted!