There are various types of examinations today, but the whole process of all examinations is the same, and it is necessary to ensure the possibility of the examination room and the fairness of the examination, but except for the most common junior high school, high school, college entrance examination, English CET 4 and 6, Most of the examination rooms in the entrance examination cannot do this. The management and control in the institutions and institutions are very strict. They will equip the examination room with mobile cell phone jammer in the examination room. Therefore, the number of mobile phone signal jammers in the examination room needs to be purchased every year. very large. Secondly, with the past few decades, communication technology has been slowly updated from the oldest 2G to the new 5G. The test room-type mobile phone signal jammers generally change the frequency every 2-3 years. Therefore, it is necessary to update the iterative test room mobile phones. signal jammer.
The appearance of the hand-held mobile phone signal jammer in the examination room is specially designed to prevent candidates from cheating by using high-tech communication equipment during the exam. After using the mobile phone signal jammer, the occurrence of such behaviors has been greatly reduced. After the mobile phone signal jammer is turned on, it will transmit the corresponding frequency band to interfere with the traffic signal, blocking the connection between the mobile phone and the base station, so that candidates cannot use mobile phones and other communication equipment to cheat. In fact, cell phone signal jammers can not only be used in exam rooms and schools, but also in offices, prisons, military and other areas with wireless routers, local area networks, and laptops and desktop computers. The direct link between the laptop and wifi requires information security protection, which is very likely to be leaked, so it is necessary to install a mobile phone signal jammer to interfere with the wifi signal.