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Mobile phone signal jammers will affect the surrounding network quality

Perfectjammer 2021-01-09

cell phone signal jammer

July 7-9, 2020 is the time for the college entrance examination. According to the regulations of the Ministry of Education and the Ministry of Industry and Information Technology,mobile phone signal jammers will be turned on during the test period. In order to effectively ensure the unblocked signals of users around the college entrance examination room, the three major operators have carried out special interference investigations on base stations around the school.

During the exam, in addition to the signal amplifier that may be used for exam fraud, which will affect the mobile phone signal, the mobile cell phone jammer that is temporarily turned on in the exam room will also affect the surrounding network quality. It may happen that the mobile phone cannot make and receive calls normally, the call is interrupted, and the mobile phone cannot access the Internet. , Slow Internet access on mobile phones.

The mobile phone signal jammers currently used in the examination room are all full-band. It can shield all the 2G 3G 4G signals, 2.4G WIFI signals and Bluetooth signals under the three operators of China Mobile, China Unicom and Telecom. Its principle is through its own The transmitted frequency interferes with the mobile phone receiving the frequency from the base station and wireless router, so as to achieve the purpose of shielding them.

During the college entrance examination, the surrounding area of ​​the examination room will affect the call quality of surrounding users, such as: frequent initiation failures, unconnected calls, dropped calls, intermittent calls, etc., will return to normal after the end of the exam, please know and understand! ! It is not the network quality problem of the three major communication operators! ! ! Please don't worry too much. These are normal phenomena and will be automatically eliminated after the exam.

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