Schools will block cell phone signals during classes

Jamming devices are radio frequency transmitters that intentionally block, jam, or interfere with lawful communications, such as cell phone calls, text messages, GPS systems, and Wi-Fi networks.Electronic warfare (EW) experts at Northrop Grumman Corp. are moving to full-rate production of common open-architecture RF jammers for infantry, land vehicles, and fixed sites to protect U.S. and […]

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High power is very useful compared to low power jammers

GPS stands for Global Positioning System. It is used by individuals, commercial entities and the military for navigational purposes. GPS uses 24 satellites that orbit the earth and send radio signals. The GPS satellites work with a GPS receiver which today can be found in individual handheld units, car navigational systems, boat navigational systems, highly […]

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Wireless spy camera jammer can stop network services at any time

Margarita Escobedo, a Catholic who goes to church at least twice a week and volunteers at the San Genaro church, says she would welcome the jammers in her parish, where cell phones are becoming a nuisance.With advances in technology, cheats too have gone high-tech, using cellphones, wireless earpieces and blue-tooth devices to get answers. Many […]

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