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Mobile phone jammer interrupts voice transmission

Perfectjammer 2021-05-05

cell phone jammer

On the first day of the National Judicial Examination in 2014, the Radio Management Office of Shiyan City assisted the public security department in arresting a suspected cheating officer and seized 4 (sets) of various mobile cell phone jammer such as earphones and wireless transponders. In response to the constantly changing types of cheating equipment and the increasing use of radio frequency bands, the monitoring personnel first conducted full-frequency monitoring of the 30-1000MHz frequency band, and as a result, no cheating signal was detected. In order to be foolproof, the monitoring staff also monitored the 1000-1500MHz frequency band. At 11 o'clock in the morning, a cheating signal was found on the frequency point of 1150.275MHz.

Cheating using frequencies above 1000MHz has never happened in the city, and it is extremely rare across the country. Because the cell phone jammer suppression equipment at this location is currently unable to suppress interference, the monitoring personnel can use mobile monitoring vehicles and hand-held monitoring direction-finding instruments for direction finding and positioning, and eventually lock the target near a red car. At 11:30, the morning exam ended and the cheating signal disappeared.

At 2 pm, the monitoring staff came to the examination room again. Because it was the first time that this cheating frequency was discovered, the technicians first went online to check the equipment and principles of using this frequency to cheat, and then exchanged information with the relevant departments of the province and Enshi, and finally figured it out. Cheating process: This type of mobile phone jammer is an unattended voice transmission device remotely controlled by a mobile phone. Its appearance is about the size of a cigarette. As long as the device is placed near the examination room, it can automatically convert the phone’s voice into a radio signal and send it to cheater.

At 3 o'clock in the afternoon of the same day, the cheating signal appeared again. The monitoring personnel and the accompanying police finally found the mobile phone jammer device wrapped in black plastic bag in the bushes near the red vehicle. After that, the police arrested a suspect who came to check the equipment by squatting, and found 1 cheating headset and 1 set of equipment from him on the spot, and found a suspicious list and photos of the cheating equipment in his mobile phone. At present, the case is still under investigation.

Cell phone jammer prevents remote control Cell phone jammer prevents loud speaking