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Cell Phone Strong Signal Data Blocking

Perfectjammer 2021/11/21

The Chenzhou Municipal Commission of Economy and Information Technology will carry out safety supervision and inspection of the units that use Cell Phone Strong Signal Data Blocking equipment in the city. For unqualified products found in the inspection process, the units will be ordered to organize equipment manufacturers to carry out maintenance, parameter adjustment or replacement of equipment and other rectification work. All mobile phone signal jammers that interfere with the uplink frequency bands of public mobile communication base stations are not allowed to be used. Any unit that uses mobile phone jammer equipment in violation of regulations and refuses to cooperate with the law enforcement work of the Municipal Commission of Economy and Information Technology shall be found in accordance with the relevant laws, regulations and laws of radio management. Regulations, compulsory dismantling, sealing up, confiscation and punishment. It is reported that mobile phone signal jammers in the examination room can prevent candidates from using public mobile communication networks to cheat, but improper use will seriously affect the safety of public mobile communication facilities and citizens' legal communication rights, and cause bad social impact. The mobile phone signal jammers currently on the market are mixed, good and bad. Once inferior products are used, they will not only fail to shield them, but will also paralyze communications in some areas, and even affect public property and life safety. cell phone jammer

​The current Cell Phone Strong Signal Data Blocking is full-band. It can shield all the 2G 3G 4G signals, 2.4G WIFI signals and Bluetooth signals under all the three operators of China Mobile, China Unicom and China Telecom. Its principle is to use the frequency it emits. Interfere with the mobile phone to receive the frequency sent by the base station and wireless router, so as to achieve the purpose of shielding them. Within a certain frequency range, the mobile phone and the base station are connected by radio waves, and data and sound transmission are completed with a certain baud rate and modulation method. The mobile phone signal jammer scans from the low-end frequency of the forward channel to the high-end at a certain speed during operation. This scanning speed can cause garbled interference in the message signal received by the mobile phone. The mobile phone cannot detect the normal data sent from the base station, so that the mobile phone cannot establish a connection with the base station and achieve the purpose of shielding the mobile phone signal. No service system and other phenomena. The working principle of the mobile phone signal jammer is generally speaking that the frequency emitted by the mobile phone signal jammer interferes with the normal frequency of the mobile phone receiving the base station, making the mobile phone unable to connect to the base station, and thus unable to make calls, receive and send text messages and surf the Internet normally.