Jamming technology has become a necessary technology for prisons

Why need prison wifi jammer technology?

A Corrective Services NSW spokeswoman said the Australian Communications and Media Authority (ACMA) recently approved a two-year trial of phone-jamming equipment at the Goulburn jail.

The U.S. Army wants drone-mounted signal jammers now to dominate future electronic warfare and is switching to a little-understood and lightly regulated contracting method to get them.

The jamming device at Lithgow uses dozens of antennas installed inside the centre to emit a signal at very low power, preventing any mobile phones inside the jail from connecting to a networked mobile phone tower.

Vietnam’s foreign ministry spokesperson said Tuesday that China has seriously violated Vietnam’s sovereignty by installing military drone jammer gun equipment on outposts in Truong Sa, Spratly Islands off the South China Sea, commonly known as the East Sea in Vietnam.

Satellite imagery taken by commercial satellite company DigitalGlobe shows a suspected jammer system with its antenna extended on Mischief Reef in the South China Sea, Reuters cited the Wall Street Journal as saying.

The ALQ-99, which dates back nearly 50 years, has reached its limit of what it can do, especially against a modern threat, in terms of effective isotropic radiated power, advanced modulation and capacity. “The reason we are purchasing the next-generation jammer, [whose] first increment will reach initial operational capability around 2021, is that the threat is getting more and more advanced. And that threat is in the electromagnetic spectrum. The next war is going to be fought in the electromagnetic spectrum,” Rear Adm. Michael Manazir, the Navy’s director of Air Warfare, told members of Congress in April, while providing an update on the status of the Next Gen Jammer.

An overworked Army intelligence officer tracked the frequencies, and an equally overworked Navy electrical engineer matched them against 14 varieties of electronic jammer used by coalition forces. As new frequencies popped up, the updated MOASS was analyzed by the National Security Agency, by Navy electronic warfare specialists in Maryland and by Army specialists in New Jersey, which led to recommended adjustments in the jammer settings. Those modified “loadsets” were then e-mailed to U.S. military forces throughout Iraq so that the jammers could be reprogrammed. The cumbersome process took weeks, by which time new frequencies had been logged into the spreadsheet, requiring further analysis and further reprogramming even as hundreds of new jammers arrived in Iraq each month. “It was a mess,” a senior defense official recalled.

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