How does the 5g signal jammer in the examination room achieve signal shielding? from dojammer's blog

1. During the working process, transmit the scanner to the low-end frequency of the wireless channel at a certain rate. The scanner speed may cause errors in the packet signal received by the mobile phone. The mobile phone cannot detect any normal data transmitted from the base station, making it impossible for the mobile phone to establish a connection with the base station, thus blocking it. The purpose of the data signal.

2. Use your own outgoing frequency to influence the frequency your mobile phone receives from base stations and wired routers, thereby achieving the purpose of blocking them.

3. Within a certain frequency range, the mobile phone and the communication base station are connected through electromagnetic waves, and data and sound are transmitted at a certain serial port baud rate and deployment method. During the working process, the high-end scanner moves toward the low-end frequency of the wireless channel at a certain rate.

4. The functional characteristics of radio waves are determined by its frequency. The mobile phone must send radio waves that meet the requirements before it can connect to the communication operator's communication base station. The mobile phone signal jammer transmits the same wireless frequency as the mobile phone. Because the frequency is the same, the mobile phone cannot tell which signal is the normal communication base station signal and "influence" it. In the form of a loop, the three video signals are continuously played to match the impact band, covering the three bands at once, and the distance between these loops is small, resulting in almost no chance for the mobile phone to speak.