• Jan , 17 2023

National Civil Service Examination, Graduate Examination, as test points near the school will become a signal restricted zone. How can an in-car frequency interferometer be so powerful in an examination room? Now reveal its secrets for you. Do you know how your mobile phone receives signals? The principle is that when the frequency-sweeping signal is received in the message signal by the mobile ph...

• Jan , 17 2023

Intelligent shielding instrument is a very magical thing. After use, it will change very strange when installed indoors. But no one can see the change. So many people wonder how a small thing can have so much energy, and some people will even try their best to see if the small shield can really completely shield. So, what will happen to the mobile phone after using the signal blocker? In the room ...

• Jan , 17 2023

The installation of the smart shield is still relatively simple, and there is basically no technical difficulty. However, several small details before the installation determine the subsequent use effect of the smart shield, such as the environment near the installation site, the installation height, and the installation method. These factors will directly affect the shielding effect of the mobile...

• Jan , 13 2023

As we all know, the smart interferometer consists of many radio frequency modules of different frequencies, and the frequencies between these radio frequency modules and antenna should correspond one to one, so why should they correspond one to one, and if not one to one, what will happen? The radio frequency module of the smart interferometer is divided according to the signal frequency used by t...

• Jan , 13 2023

Pull-bar box signal shielder can be used in explosion/bomb-disposal site: to prevent wireless detonation, car bomb, remote control bomb, etc., to avoid unnecessary casualties; For emergencies, they can quickly reach the scene, block communication signals and control public rumors; Pull-bar box type signal shielder is composed of high-power full-band vehicle wireless signal shielder, RF omnidirecti...

• Jan , 13 2023

With the rapid development of mobile communication in the context of the Internet, people rely more and more on mobile phones. Phone has become an indispensable part of people's daily work and life. Of course, there are also some problems that can not be ignored. Network shield can be effectively solved one by one. Mainly: 1. With the widespread use of mobile phones, the environment in conference ...

• Jan , 06 2023

If you want to make the network shield lose its interference effect on the mobile phone signal, you must first know the working principle of the jammer. The working principle is that the signal transmitted by the jammer is white noise interference signal with the same frequency as the signal used by the mobile phone. When the intensity of the interference signal transmitted by the jammer is strong...

• Jan , 06 2023

How many meters an intelligent shield can shield depends not only on the transmission power of the shield itself, but also on the distance of the base station in the use environment. Buildings and signal amplification distribution are done in some buildings, and it also plays an important role. Of course, the effective coverage of the jammer does not mean that there are any specific values, which ...

• Jan , 06 2023

In the context of the Internet, with the rapid development of mobile communication, people are increasingly dependent on mobile phones. Telephone has become an indispensable part of people's daily work and life. Of course, there are also some problems that can not be ignored, and signal shields can be effectively solved one by one. Mainly: 1. With the widespread use of mobile phones, the environme...