A wireless jammer is a device that sends signals to the same frequency. If the jammer is turned on, the jamming is partially successful when the area of the mobile phone signal is disabled. Nowadays, with the increasing number of mobile users, some signal interference and jamming devices also appear to interfere with the signals at the disabled specific environmental locations. It is transmitted on the same radio frequency as the mobile phone, interrupting the communication between the mobile phone and the tower base station, and refusing to provide radio signals to users in the coverage area of the jamming device.

At present, there are different types of wireless jammers on the market. Some devices can only block a single frequency, while some devices can block multiple types of networks at the same time. The latter model can automatically switch from different networks to find open signals. Higher end devices can block all frequencies at the same time, while other devices can tune to a specific frequency. The carrier frequency of the electromagnetic interference signal transmitted by the receiver is the same as the carrier frequency, so the receiver and the amplifier are demodulated simultaneously at the receiving terminal. The collision between signals and interference signals. In short, the wireless jammer sends signals in a wide range of frequencies and is strong enough that close equipment cannot connect to its proper connection. Therefore, the device cannot make a regular connection. By quickly covering a range of frequencies, they can effectively prevent the normal operation of electronic equipment.