Applicable place

1. Protection of border operators' communication signals

2. Force combat needs

3. Detention centers, labor reform teams, large and medium-sized prisons

4, large gathering place

5. Leaders visit security

6, college entrance examination, adult college entrance examination, self-study exams and various colleges and universities

7, party and government organs, enterprises of various large and medium-sized conference rooms, concert halls, theaters

8. Flammable and explosive places such as gas stations, oil depots, oil fields, and gas stations

 

Instructions

1. Select the area where you want to cut off the signal from your phone and place the disconnector on the table or wall in this area.

2. After the installation is complete, turn on the power to the disconnector and turn on the power switch.

3. After the device is connected, press the power switch disconnector to work. At this time, all the mobile phones that are turned on in the field are in the search network state, and the base station signal is lost. The main callee cannot establish a call.

Introduction to the principle of mobile phone signal blocker (mobile phone signal cutoff)

In response to the above communication principle, the handset shield is scanned from the low-end frequency of the forward channel to the high-end at a certain speed during operation. The scanning speed can form garbled interference in the message received by the mobile phone, and the mobile phone cannot detect the normal data sent from the base station, so that the mobile phone cannot establish a connection with the base station. Mobile phones are characterized by search networks, no signal on mobile phones, and no service systems.