The basic principle of a mobile phone jammer is to emit the same radio frequency signal as a mobile phone. Because the frequency is the same, the mobile phone cannot distinguish which signal is a regular base station signal, thus realizing "interference". As long as there are devices with the same frequency as the mobile phone, when the base station tries to connect to the mobile phone, it will make a lot of "noise". You will find that the signal sent by the mobile phone is not recognized, so you will refuse to communicate with the mobile phone. At present, the main principle of Cell Phone Jammer Chinavasion and signal interference is to emit huge noise in the frequency band used by the mobile phone, which interferes with the normal signal reception and transmission of the mobile phone. This small object is not only often used to prevent cheating in exams, but also can be used to prevent terrorist attacks politically and militaryly. However, mobile phone signal jammers are not like buying food, they are not bought casually, otherwise they may be illegal. cell phone jammer
We all know that Cell Phone Jammer Chinavasion is required in some special scenarios to prevent leaks or cheating. For example, some secret-related meetings are not allowed to carry mobile phones, and if they arrive, mobile phone signals will be blocked in the venue. The college entrance examination is almost one of the most important things in Chinese people’s lives. Ensuring its fairness has become an important task of local education bureaus. In order to ensure fairness,
