In prisons or detention centers, it is common knowledge to install Cell phone signal jammers. If you ask the purpose of installing a cell phone signal jammer in a prison, most people may say: Of course it is used to block the cell phone signal of the prisoners in the prison to prevent them from […]
Month: December 2022
How Do Cell Phone Signal Jammers Work?
Common cell phone signal jammers are used to shield cell phone signals by emitting interference signals. By transmitting a high-power signal of a certain frequency, the surrounding electromagnetic environment is severely damaged, and the cell phone cannot normally obtain and analyze the signal from the base station, thereby achieving the purpose of shielding the cell […]
What Is A Cell Phone Jammer And Are Mobile Phone Jammers Illegal?
The cell phone jammer is a shielding signal device that can effectively shield all communication signals such as CDMA, GSM, SCDMA, DCS (1800MHz), PCS (1900MHz), PHS, 3G, 4G mobile phone signals, WIFi and 5G mobile phone signals. The cell phone signal jammer can concurrently detect multi frequency bandwidth (GSM, DCS, CDMA, 3G，4G, 5G) transmission signals. […]
What Is A Drone Signal Jammer And How It Works?
In recent years, the use of unmanned aircraft (in this case, civilian multicopters) has increased rapidly, and concerns about their safety have also increased. Many relevant departments, and even private individuals, want to do something to prevent drones from entering this sensitive area. The Drone signal jammer device includes a portable main battery and a […]
Does The Signal Jammer In Exam Halls Really Work?
Examination rooms are relatively formal occasions. For the fairness and justice of the examination, it is very important to prevent candidates from cheating in the examination room. Therefore, mobile phone signal jammers are favored by various school examination rooms. So how to choose one that can achieve shielding effect. Many schools, colleges and universities buy […]