Exams are a way of testing knowledge. Passing the test can reflect the student's learning status and other abilities, in order to ensure the fairness of the test results. The examination room must have strong discipline constraints, and there are special examiners and invigilators to supervise the examination process, and a series of equipment such as signal jammers in the examination room are installed. Fundamentally block the signal source to prevent cheating.
In recent years, mobile phone signal jammers in the examination room have appeared many times in school classrooms, churches, conference rooms and other places, and have become indispensable equipment. The essence of the signal jammer in the examination room is to implement electromagnetic interference on the mobile phone communication wireless network, so that the mobile phone cannot access the Internet, and cannot receive signals from the mobile network, and cannot send signals through the network to achieve the effect of disconnecting the network.
How to install the signal jammer in the examination room? In fact, the installation itself is relatively simple, but the details before the installation determine the subsequent use of the mobile phone signal jammer in the examination room. For example: the environment near the installation site, the installation height, the space on site, and the number of mobile phone signal jammers in the examination room.
The installation method of the signal jammer in the examination room:
1. In order to ensure that the signal shielding of the mobile phone signal jammer in the examination room achieves the best effect, it is generally best to install it at a middle position of more than one meter and less than three meters;
2. The test room shield is relatively small, and can be fixed on the wall with ordinary expansion screws. Of course, it can also be placed directly on a higher position. But in this case, the effect is not very good. In this case, the test room shielding device is mostly placed near the blackboard podium in front of the classroom, and can be placed directly on the podium under the blackboard. If the quantity is large, one can be placed at the front and back of the classroom. If not enough, one can be placed in the middle of the classroom to achieve the best shielding effect.
3. After installation, check whether all parts are well connected, and whether there is any problem with accessories such as power supply;
4. Finally, insert the power adapter into the adapter power socket of the machine. Generally, after half a minute of power on, the signal will be blocked.
Finally, turn on the mobile phone to see if the signal is blocked by the test room jammer, isn't it very simple!