Today's mobile phone jammers, based on the analysis of the principle of signal communication, integrate a variety of methods to interfere with wireless signals to interfere with signals. At present, the mobile phone jammer scans the channel from the low end frequency to the high end frequency at a certain rate in the working process. This method makes the signals received by the mobile phone become a pile of garbled codes through interference, so that the mobile phone can no longer receive the normal data signals transmitted by the nearby base station, and naturally can not contact the base station. At this time, the mobile phone will show no signal, no network, no service and other status.

The main function of the mobile phone jammer is to interfere with the mobile phone signal and make the mobile phone unable to operate normally. It is an essential equipment for examination rooms, prisons, gas stations and other places that do not need mobile phones. It is very convenient to use in the exam. You can interfere with the signals in the exam room just by placing them on the platform, and the use in the work will not affect the students' exam. In addition, don't worry that it 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 interfere with the mobile phone signal. So far, with the development of science and technology, this kind of mobile phone jammer has become more and more excellent in performance and can cover more and more widely. It is one of the important devices for jamming signals.