Every year, the day of the college entrance examination is getting closer and closer, and many schools are very busy. They are preparing for the materials and machines needed in the examination room without stopping, so that candidates can take the examination in a stable and orderly environment. This is also the school's Responsibility lies. Therefore, we can see that the mobile phone signal jammers that are vigorously promoted by many schools are installed in the examination room. This is a problem that can effectively prevent cheating by electronic signals. Although its effect is very good, in actual use, Due to the different installation locations and conditions, its effect is also less clear.
Although the size of the shielding range we have seen can be found in the instructions attached to the mobile phone signal jammer, this is a laboratory data for reference only, and should be treated differently in actual use. First, there is no base station 500 meters nearby, which is one of the reasons that affects the shielding range, and the impact is different according to the length of the distance. Pay attention to this; second, mobile phone wifi jammer cannot pass through walls, which It will cause its shielding range to be greatly reduced, and metal objects will also affect his shielding effect. Although these problems will affect the effect of the mobile phone signal jammer for the exam, it is still a good helper to effectively prevent electronic cheating.