Do cell phone jammers installed in school exams really work?
In school exams, in order to prevent students from using mobile phones to transmit information, leak test papers, and cheat in exams, some are also to prevent teachers from leaking test paper information on the way to escorting test papers, which will have a bad impact on later exams.
Are all schools suitable for installing cell phone jammers? ? ?
The mobile phone signal jammer uses the same frequency as the downlink frequency of the mobile phone receiving base station to conduct electromagnetic interference of the same frequency. All of them will be affected by the signal strength of the nearby base station and affect the mobile phone shielding effect. So how to test the mobile phone signal strength in the place where the mobile phone signal jammer is used? ? ?
Midsummer June is about to usher in the middle school entrance examination and college entrance examination. In order to ensure the quality of the examination, many schools have already started preparing for the examination room in advance. In the process of preparing for the examination room, there is a very important thing, that is to install a mobile phone signal jammer. However, installing a cell phone jammer is not something that everyone can do. So, what should I pay attention to when installing the mobile phone signal jammer? In fact, the installation itself will be relatively simple, but a few small details before the installation determine the subsequent use of the cell phone jammer. For example, the environment near the installation site. And the installation height.
In order to ensure the best effect of the signal, in general, the installation of more than one meter and less than three meters has the best effect. The cell phone signal jammer is relatively small and can be fixed on the ceiling or wall with ordinary screws. Of course, it can also be used directly on a table or something. However, in this case, the effect is not very good. After installation, check to see if everything is connected well, and if there is any problem with accessories such as power supply. Finally, plug the power adapter into the adapter power socket of the machine, and directly connect the 220V power supply. Next is the test machine. If there is any problem, you can contact the manufacturer as soon as possible if you find it during the testing process. As long as it is produced by a regular manufacturer, it will usually be solved in time. If you encounter a pit manufacturer, it is still recommended to directly return it to the manufacturer. So here, we recommend manufacturers like topsignaljamm. Not only is the reputation reliable, but also the quality is reliable. And problems will be solved in time to ensure that the interests of customers are not harmed.
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