In this information age, the participation of mobile cell phone jammer is of course indispensable in the examination room. The emergence of mobile phone jammers solves many hidden dangers and interferes with the order of the examination room, preventing candidates from taking the exam. Fair environment. Many schools have installed cell phone jammers. Considering the size of the mobile phone signal jammer in the examination room, it is not very large and can be conveniently placed anywhere in the examination room without additional space. And there is no noise, and the use of shielding equipment will not have a significant impact on candidates. In addition, you don’t have to worry about their impact on other electronic devices, mainly to shield your cell phone signal. At the same time, it is used to block the connection between the mobile phone and the base station, and will not cause harm to the human body. At present, with the development of science and technology, the application range of signal shielding devices is becoming wider and wider. It can cover a large area at a time, thus greatly reducing the cost.

The generation of mobile phone signal jammers is to reasonably avoid and interfere with mobile phone related signals, such as GPS, WIFI, 2G, 3G, 4G or future 5G. Mainly used in school examination rooms, prisons, detention centers, etc. In order to ensure the fairness and justice of the examination, the high school entrance examination and the college entrance examination usually adopt mock examinations. So how to choose a signal jammer ? From the manufacturer's point of view, if the selection is improper, it is easy to cause the product to be returned or replaced or the installation is invalid. During operation, the signal screening machine scans from the low-end frequency of the channel to the high-end frequency, and its speed can cause garbled interference to the message signal received by the mobile phone. As a result, the mobile phone cannot detect the normal microwave signal data published by the base station, and the mobile phone cannot plan. Establish a connection with the base station to achieve the purpose of shielding the mobile phone signal.

There are various types of wifi jammer on the market, and their prices are also different. Of course, no matter what you buy, you will get a penny. When we buy a WiFi signal jammer, we also choose the manufacturer of the WiFi jammer. Although the production process of wifi signal jammers is similar, but in terms of production process and R&D team, it is closely related to the quality and performance of mobile phone signal jammers. Therefore, among manufacturers that produce mobile phone signal shielding, the brand perfectjammer is better and has a certain influence, because in the brand of perfectjammer, no matter which line it is, it uses more and has a good reputation. Let's take a look at the production process of the perfectjammer brand.