Hubis Haratu, deputy director of the Academic Affairs Office of Hohhot University for Nationalities, said that Cell Phone And Wifi Blocker Crj 4000 is not used in school exams, mainly to bring vitality to teachers. Mobile phone jammers are used every year in the national exam. But before using cell phone jammer , the electromagnetic frequency has been adjusted, and if the mobile phone exceeds the test range, there will naturally be a signal. During exams, shielded areas are limited to classrooms and hallways, and residential buildings are unlikely to be affected. Hubersaratu said that there have been cases of no signal or weak signal in the office building, and the staff could not explain why the residents of the Mongolian Expert Building had no signal at home.
This year, Ningbo has set up 9 test areas, 37 test centers and 1,326 test rooms. During the test, all test rooms in Ningbo are equipped with video surveillance. Each test center is equipped with cell phone detectors and wireless headset detectors. Cell Phone And Wifi Blocker Crj 4000 Installed in each test site. The Ningbo Radio Management Department will also arrange radio patrol cars to patrol around the examination room to monitor the radio signals around the examination room to prevent high-tech cheating.