In the electronic sealing control and public security emergency disposal of large venues, the public security police, special police or armed police and other departments need to deal with criminals before using the network jammer. The equipment is to effectively shield the function of industrial wireless remote control devices and wireless mobile communication devices, so that they lose the ability to receive or demodulate useful signals and instructions, and can not realize their predetermined Telecom output and action.

The network jammer includes the main part of the jammer, heat dissipation system, mounting rack, antenna system and protective box. The main part of the jammer, heat dissipation system and mounting rack are located in the protective box. The main part of the jammer includes host system and power supply system.

The host includes a signal source generating a radio signal and a power amplifier amplifying the radio signal. The radio signal output end of the signal source is connected with the radio signal input end of the power amplifier, and the radio signal output end of the power amplifier is connected with the radio signal input end of the antenna system;

The power supply system includes power box, power adapter, lithium battery protection board, lithium battery, indicator light, voltmeter and ammeter; The power adapter, the lithium battery protection board, the lithium battery, the voltmeter and the ammeter are installed in the power box