They mainly interfere with the signal of the mobile phone through electromagnetic interference, so as to achieve the purpose of communication between the mobile phone and the mobile phone. However, different Handheld 4G Cell Phone Jammer Work s can have different scopes. Therefore, it is also incorrect to think that installing a mobile phone signal jammer can eliminate all fraud. The installation of a mobile phone jammer also needs to be selected according to the surrounding environment. For example, if there is a signal base station nearby, or there is an amplifier. So, at this time, it is often not enough to install a mobile phone jammer in a classroom of about 100 square meters. Because both the base station and the amplifier will interfere with the normal operation of the mobile phone jammer. In the correct way, when installing a mobile phone jammer, you should be as far away from the base station or amplifier as possible. cell phone jammer
For many people, the college entrance examination is the most important node in their lives, and this exam will also greatly affect the future lives of candidates. Therefore, the importance of the college entrance examination is undoubtedly needless to say, but in such a sacred place In the exam, there will be some candidates who try to cheat through electronic signals, hoping to get high scores through off-market recruitment. This behavior is undoubtedly extremely unfair to other candidates and tramples on the efforts of other candidates for many years. Achievements, so for schools, Handheld 4G Cell Phone Jammer Work is a countermeasure they must have.