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29 November 2023
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In order to maintain a fair and secure examination environment, many schools choose to use cell phone signal jammers in exam halls. However, this practice may disrupt the surrounding signal environment. To ensure uninterrupted communication in the areas surrounding exam halls, telecommunication operators conduct signal tests at each entrance and exit of the exam venue. They also upgrade and expand the hardware and software of nearby base stations to meet the communication needs during exams. Efforts are made to guarantee smooth mobile communication outside the exam halls.
Preventing Cheating:
During exams, there are always some students who attempt to cheat or take risks. In such cases, schools employ the method of blocking all cell phone signals within the exam halls. Therefore, it is common for exam halls to be equipped with cell phone signal jammers. Additionally, wireless monitoring devices are installed outside the exam halls to monitor any unidentified radio signals in real-time.
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Working Principle of Exam Hall Cell Phone Signal Jammers:
The working principle of cell phone signal jammers used in exams is to drown useful electromagnetic wave signals in a sea of useless signals. Normally, when we make a phone call and communicate with the outside world, the wireless radio wave signals emitted by both parties are transmitted through the connection between the mobile phone and the base station. Once the cell phone signal jammer is activated, it creates a “protective net” around the exam hall, completely isolating the surrounding signals from the outside world. As a result, mobile phones inside the exam hall cannot receive signals from outside, and base stations cannot receive signals from mobile phones, effectively cutting off communication between the two.
Conclusion:
The use of cell phone signal jammers in exam halls is a necessary measure to prevent cheating and maintain the integrity of examinations. While it may temporarily disrupt the surrounding signal environment, telecommunication operators take steps to ensure smooth communication in the areas surrounding exam venues. By conducting signal tests, upgrading base stations, and expanding capacity, they strive to meet the communication needs during exam periods. It is crucial to strike a balance between maintaining exam integrity and ensuring uninterrupted communication for individuals outside the exam halls.
