a cell phone jammer block the signal

In the room where A Cell Phone Jammer is installed, using a mobile phone will find that there is no way to make calls, no way to answer, and no way to connect to the Internet, so naturally there is no way to receive information. In addition, the test room signal jammer with Bluetooth function, then the Bluetooth function of the mobile phone cannot be used. This avoids the possibility of making or answering calls with Bluetooth headsets and the like. The signal jammer will not interfere with the work of other electronic devices. After using the signal jammer, it is safer and more concealed. At present, Linchuang Technology has done a better job in producing signal jammers in examination rooms.

The cell phone jammer is a very magical thing, after use, it will change very strangely when installed indoors. It's just that no one can see this change. So many people are puzzled, how can a small thing have so much energy, and some people even take the risk.In order for the telephone signal jammer to effectively interfere with the mobile network, it must be ensured that the signal field strength of the jammer should be much greater than the field strength of the mobile signal BCH in the interference area. Therefore, the same jammer uses different locations and the effective area of ​​interference. It is different. Generally, the closer to the base station, the stronger the local BCH field strength, and the smaller the area where the jammer reaches effective interference. Generally, the interference radius can only reach 0.5-9m; the farther away from the base station, the BCH field strength is relatively weak. 

In today's information age, the development of communication technology is changing with each passing day. As a unique member of the communication family, mobile communication plays an important role in people's lives and industrial and agricultural production. Today, let’s talk about cell phone signal shielding in conference rooms. The principle of the device, secondly, while the mobile phone brings great convenience to people’s lives, it also has some problems that cannot be ignored.