if you want to buy a 12 antenna signal jammer

The college entrance examination will change the fate of most people. The state also guarantees the fairness and justice of the college entrance examination from regulations and action monitoring.Even the latest popular drone can be a tool for cheating. The electromagnetic wave frequency band used by the mobile phone is related to the system used by the mobile phone and the operator.Because electromagnetic waves have the characteristics of cell phone jammer, by constantly moving the detection vehicle, the monitoring equipment can locate the signal transmitter according to the distance and the strength of the signal, and capture the offenders using these radio communication tools on the spot.

After the patrol police found it, they used drone counter-guns to drive away and make a forced landing. Cheating in the college entrance examination may face criminal offenses, and during the examination process, the examination room is also ready to use various high-tech to avoid examination fraud. With the development of science and technology, various cheating methods are also advancing with the times. Wireless transmission, Bluetooth headset.If you are near the examination room, you will definitely receive a text message, which roughly means: In order to create a fair and just environment, the relevant examination authorities will turn on the communication signal shielding device at all test sites in the city during the test period.

To know how the cell phone signal is shielded, let's first understand the working principle of mobile communication. As a mobile communication device, a mobile phone needs to establish a connection with nearby base stations when communicating, and then access the core network to find the communication destination. In the above process, all information is carried and transmitted through electromagnetic waves. The quality of calls and Internet access is affected, such as frequent failures to make calls, failure to connect, intermittent voice calls, slow Internet access on mobile phones, or frequent disconnections.