In order to safeguard the interests of the vast majority of candidates and improve the fairness of the exam, necessary restraint measures must be taken against the cheating behavior of a few people. The examination management department has adopted the practice of installing a mobile phone signal jammer.
During the examination, the examination room and the surrounding environment of the examination room will be closely monitored in an all-round way. All monitoring stations and monitoring vehicles will be in state at that time, and some radio frequency bands will be fully monitored. Once abnormal signals are found, signal interference measures will be taken immediately. break the signal. In addition, technicians can also judge the direction according to the direction finder and assist the relevant departments to find cheaters.
Some parents of candidates feel uneasy about this, worrying that it will affect their children's normal performance in the college entrance examination. In fact, parents of candidates have no concerns in this regard. These devices will not cause harm to candidates and examination staff. Moreover, this mobile phone signal jammer can be completely silent and will not affect the normal course of the college entrance examination for children. play.
Whether any kind of electromagnetic wave emitting equipment is harmful to the human body depends on the specific absorption rate of electromagnetic waves by the human body. The radio frequency radiation safety standard SAR recognized by the International Non-Ionizing Radiation Protection Committee is up to 2.0, and my country's standard is 1.5. The transmission power of the current wireless communication base station tower is generally 40W~50W, and the specific absorption rate of electromagnetic waves by the human body is less than 1.0 when the distance from the tower is 20 to 30 meters. The mobile phone wifi jammer used in the examination room is a micro-power device, and its transmit power is generally less than 3W. In this case, the specific absorption rate of electromagnetic waves by the human body is very small. Therefore, the mobile phone signal jammer used in the examination room does not pose a hazard to human health.