Now that half of December is over, there is still a short period of time before the school final exam, and some schools have already prepared mobile phone signal jammers for the exam. In order to prevent students from cheating with electronic devices, many schools choose to install test room cell phone jammers in the test classrooms. But what should you pay attention to when buying?
Is the test site relatively close to the base station? In the process of sales, we often encounter customers asking us, how effective is the mobile phone signal jammer in the examination room? In fact, the power of different types of test room jammers is also different. Generally, 2G, 3G, and 4G call signals can be blocked. Some types of test room mobile phone signal jammers cannot block 5G signals. This is because the manufacturer will According to whether there are 5G signals from nearby base stations, it is decided whether to install a module that can shield 5G signals on the test room jammer. On the contrary, it is a waste to install it.
Can the frequency band of the mobile phone signal jammer in the examination room be fully covered? What is the effect of the most important frequency bands of DCS1800, FDD1900, CDMA800, and GSM900 shielding mobile phone signals? How many meters is the coverage? These questions need to be confirmed. If there is no 5G signal nearby, the installation of 5G modules will be saved, which will save a lot of money. If you only want to block wifi and calls, you can also selectively modify the frequency band of the test room jammer according to your needs. When the mobile phone signal jammer in the examination room is available, what is the actual power of the test? What is the output voltage? Choose the power of the test room jammer or choose according to the actual environment. The local signal is relatively strong, and the power of the selected test room jammer is also relatively large.
Function: The main function of the test room jammer is to shield radio signals and prevent communication interference inside and outside the test room. Therefore, it is necessary to ensure that it has a good shielding function when purchasing to ensure the safety and fairness of the test.
Applicability: Different test room jammers are suitable for different occasions. For example, some test room maskers are suitable for small test rooms, while others are suitable for large test rooms. Before buying, you need to know the venue and scale of your exam, and choose a shield that suits your exam.
Quality: The test room jammer is a kind of security equipment, and quality problems may lead to test mistakes and potential safety hazards. When purchasing, you should choose products produced by regular manufacturers, and carefully check the relevant information such as product quality certificates and qualification certificates.
Cost: The price of the test room jammer is relatively high, and you need to choose a product that suits you according to your economic situation. Before buying, you can compare multiple prices to ensure that the price of the product you buy is reasonable.
Installation: The test room shield needs to be installed and debugged. Before purchasing, you need to understand the relevant installation and use instructions to ensure correct installation and achieve the best shielding effect.
In a word, when purchasing the shielding device for the test room, you need to carefully consider the above factors, choose the right product, and perform correct installation and debugging according to the installation instructions to ensure the fairness and safety of the test.