In order to safeguard the interests of the vast majority of candidates 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 jammers.

During the examination, the examination room and its surrounding environment will be closely monitored in an all-round way. All monitoring stations and monitoring vehicles will enter the state at that time. Some radio frequency sections will be fully monitored. Once abnormal signals are found, frequency jammer interference signal measures will be taken immediately to block the signals. In addition, technicians can also judge the direction according to the direction finder and assist relevant departments in detecting cheaters.

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