The current mobile phone jammers are all full frequency bands. 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 its own frequency. To interfere with the mobile phone receiving the frequency sent by the base station and wireless router, so as to achieve the purpose of shielding them. The working principle of the mobile phone signal jammer is generally speaking What Does A Cell Phone Jammer Look Like The frequency emitted by itself interferes with the normal frequency of the mobile phone receiving the base station, making the mobile phone unable to connect with the base station, and thus unable to make calls, receive and send text messages and surf the Internet normally. 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 jammer scans from the low-end frequency of the forward channel to the high-end at a certain speed during operation. The 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. cell phone jammer
The Chenzhou Municipal Commission of Economy and Information Technology will carry out safety supervision and inspection of units that use mobile phone signal shielding equipment in the city. For unqualified products found in the inspection process, they will order the units to organize equipment manufacturers to perform maintenance, parameter adjustment or replacement of equipment and other rectification work. . Any What Does A Cell Phone Jammer Look Like that interferes with the uplink frequency band of public mobile communication base stations is not allowed to be used. Any unit that uses mobile phone signal shielding equipment in violation of regulations and refuses to cooperate with the law enforcement work of the Municipal Commission of Economy and Information Technology will be subject to relevant laws, regulations and rules on radio management once it is found. Mandatory 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 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.
