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Cell phone jammers are used in corporate offices

Perfectjammer 2019-07-18

Companies are using cell phone jammer to stop employees from using their phones at work

"The phone signal has somehow disappeared, but it can be restored to a certain extent outside. It's very strange." A few days ago, qingyuan radio management office received a complaint from mobile phone users, which reported that the communication base station located near jiafu industrial park suffered from unknown interference, resulting in two sectors not working normally and affecting the normal communication of a large number of users. The office immediately dispatched radio law enforcement and surveillance personnel to the area to conduct a screening. After testing, it was found that the jamming signal came from the factory of a travel supplies company in jiafu industrial park.

The person in charge of the company explained that in order to ensure that the employees would not delay their work, they specially purchased a GSM signal shielding device to eliminate the phenomenon of playing mobile phones at work. They did not know that it would affect the normal work of the communication base station. They expressed their apologies for the impact and promised to remove the shielding device immediately. As the first offense, and take the initiative to cooperate with the government law enforcement work, qingyuan city radio management office then gave warning to the enterprise.

According to the professionals, the mobile phone shielding device at a certain speed from the low-end frequency of the forward channel to the high-end scan. This scanning speed can form garble interference in the signal received by the mobile phone, so the mobile phone cannot detect the normal data sent from the base station, and thus cannot establish a connection with the base station.