Mobile phone signal jammers are mainly aimed at all kinds of examination rooms, schools, gas stations, churches, courts, libraries, conference centers (rooms), theaters, hospitals, governments, finance, prisons, public security, military centers and other places where the use of mobile phones is prohibited. It is understood that Xiaobian's Portable 4G Cell Phone Signal Blocker can shield the diameter coverage of more than 30-40 meters, and the power is about 16W. The mobile phone signal jammer can only shield the mobile phone signal without affecting other electronic devices. The cell phone jammer scans from the low-end frequency of the forward channel to the high-end frequency at a certain speed during operation. This scanning speed can cause garbled interference in the received message signal of the mobile phone. When the mobile phone cannot normally monitor the normal data sent by the signal base station, the mobile phone cannot establish a connection with the signal base station. The mobile phone is manifested as searching the network, no signal on the mobile phone, no service system, etc.
Every exam season, all parties begin to prepare for the pre-exam work intensively. In all the exams in the past dynasties, cheating occurred, but with the improvement of skills, the methods and methods of cheating were constantly updated and changed. Nowadays, with the development of science and technology, more and more people use mobile phones to cheat, which has become a problem that the examination management department pays more and more attention to. And cell phone jammer happens to be one of them. In order to pull students out of the quagmire, it is necessary to adopt some unconventional management methods such as banning mobile phones and games. The school needs to make a difference in this matter. Blocking mobile phone signals and drawing salaries from the bottom is definitely more effective than calling for teachers, making rounds of wards, and formulating strict management measures. For Portable 4G Cell Phone Signal Blocker , has always been the nemesis of a lot of cheating. Whether it is cheating through headsets or mobile phones, signals are needed to communicate. However, it can effectively change the signal transmission of the communication equipment, so that no signal will pass through the entire examination room area, which will also reduce many cheating behaviors.