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The use of frequency jammer in the examination room will not affect the normal performance of candidates

The use of frequency jammer in the examination room will not affect the normal performance of candidates

  • 2022-10-13
In order to safeguard the interests of the vast majority of examinees and improve the fairness of the examination, necessary restrictive measures must be taken against the cheating of a few people. The examination management department has adopted the practice of installing frequency jammer interference meters.

During the examination, the examination room and its surrounding environment will be closely monitored in all directions. All the monitoring stations and monitoring vehicles will be in the state at that time. Some radio frequency bands will be fully monitored. Once abnormal signals are found, the frequency jammer will be immediately used to interfere with the signals and block the signals. In addition, technicians can also judge the direction according to the direction finder and assist the relevant departments in detecting cheaters.

Some parents of examinees feel uneasy about this and worry that it will affect the normal play of their children's college entrance examination. In fact, the parents of the examinees have no concerns in this regard. These devices will not cause harm to the examinees and examination staff. Moreover, this frequency interference device can be completely silent, and will not affect the normal performance of the children's college entrance examination.

Whether any kind of electromagnetic wave transmitting equipment is harmful to human body depends on the specific absorption rate of electromagnetic wave by human body. The highest radio frequency radiation safety standard SAR recognized by the International Non ionizing Radiation Protection Committee is 2.0, while the standard in China is 1.5. At present, the transmitting power of the transmitting tower of the wireless communication base station is generally 40W~50W, and the specific absorptivity of the human body for electromagnetic waves is below 1.0 when it is 20 to 30 meters away from the transmitting tower. The frequency jammer used in the examination room is a micro power device, and its transmission power is generally less than 3W. In this case, the specific absorptivity of the human body to electromagnetic waves is negligible. Therefore, the frequency jammer used in the examination room is not harmful to human health.

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