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Example of a mobile phone jammer, produced by Jammerspro. A mobile phone jammer or blocker is a device which deliberately transmits signals on the same radio frequencies as mobile phones, disrupting the communication between the phone and the cell-phone base station, effectively disabling mobile phones within the range of the jammer, preventing them from receiving signals and from transmitting ...
Portable jammers are phone-sized and low-powered devices. They can block data delivery at a distance up to 15 meters without barriers. Stationary jammers are more expensive and powerful. They usually have a larger jamming radius and wider frequency band. Strong jammers can require additional cooling as they can overheat.
In 2014 the FCC issued an Enforcement Advisory warning the public that "it is illegal to use a cell phone jammer or any other type of device that blocks, jams or interferes with authorized communications" and that "this prohibition extends to every entity that does not hold a federal authorization, including state and local law enforcement ...
Jammers have many possible uses, including to keep away unwelcome drones, disable security cameras and block Wi-Fi networks. But they can also interfere with emergency communications, normal phone ...
But under current law, the list of government agencies with authority to buy and use radio frequency jammers is short, including the FBI and the Department of Homeland Security, as well as the ...
Wi-Fi jammers, which could also block signals on police walkie talkies, are illegal under federal law. Assemblywoman Carol Murph, D-Mount Laurel, introduced legislation earlier this year that ...
Law enforcement will often obtain HCSLI from wireless carriers in order to determine where a particular cell phone was located in the past. Once this information is obtained, law enforcement will use a map of cell site locations to determine the past geographical locations of the cellular device.
Robinson requested the committee consider a law in Indiana that would criminalize importing one of the jammer devices. His recommendation was stiff penalties, escalating depending on how the ...