In this information age, it can be said that mobile phones are very popular nowadays. The arrival of mobile phones brings convenience to people's daily life, but it is also inevitable that some people will maliciously use mobile phones to engage in some bad behaviors. For example, in the past, cheating in examinations was mainly through taking notes and taking notes into the examination room, but now using mobile phones to cheat. At this time, some equipment is needed to stop these behaviors. Now, the participation of frequency jammers is indispensable in the examination. The use of such equipment as interference signals has eliminated many cheating phenomena and hidden dangers of disturbing order for the examination room, so that the examinees can take the examination in a fair environment. Therefore, it is necessary to use frequency jammers in some special places.

The main function of the frequency jammer is to shield the mobile phone signal and prevent the mobile phone from operating normally. It is an essential equipment for examination rooms, prisons, gas stations and other places that do not need mobile phones. If it is very convenient to use in the exam, you can only put it on the platform to interfere with the signals in the exam room, and the reasonable use in the work will not affect the students' exam. In addition, there is no need to worry that such devices will affect the use of other electronic devices. It is mainly used to cut off the connection between the mobile phone and the base station, so as to shield the mobile phone signal. At the same time, with the development of science and technology, the performance of this frequency jammer will become more and more excellent in the future. Reasonable use in some special places can avoid the problem of "random entry" of signals, and it is one of the important equipment for jamming signals.