Radio signal shielding: does not affect the normal performance of candidates
In order to ensure the interests of the vast number of candidates, it is necessary to take the necessary restrictive measures for most people to cheat. The examination administration has adopted the practice of radio shielding.
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During the examination period, the examination room and the environment around the examination room will be closely monitored in all aspects. Monitoring stations and monitoring vehicles will be in place upon arrival. The local RF range will be monitored unilaterally. Once an abnormal signal is detected, 5g blocker will be used immediately. Shield the signal. In addition, the technicians can also determine the direction based on the direction finder to help the relevant authorities to find the 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, these devices will not endanger the health of candidates and examiners, nor will they affect the normal answers of candidates.
Whether any kind of electromagnetic wave-emitting equipment is harmful to the human body depends on the body's specific absorption rate of electromagnetic waves. The world's non-ionizing radiation protection committee to determine the highest radio frequency radiation safety norms SAR for 2.0, China's norms for 1.5. At present, the transmission power of the wireless communication station transmission tower is generally 40W ~ 50W, 20 ~ 30 meters away from the tower when the human body to the specific absorption rate of electromagnetic waves in 1.0 or less. The radio signal shielding equipment used in the examination room is a micro-power device, and its transmitting power is generally less than 3W, which is used in the corridor outside the examination room. In this case, the body's specific absorption rate of electromagnetic waves is very small. Therefore, the use of radio signal shielding equipment in the examination room will not cause harm to human health.
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