Precautions for upgrading 5G mobile phone jammer
The use of 5G mobile phones is becoming more and more popular. If the old mobile phone jammer in the examination room is not upgraded to 5G, the 5G signal can not be shielded during the examination, and it is easy for examinees to cheat with 5G mobile phones. So it is necessary to upgrade the previous machine. What should we pay attention to when upgrading the 5G mobile phone jammer?
① The so-called jammer upgrade is of course the shielded frequency band of the shield. The signal shield installed by the school is mainly to prevent candidates from cheating through various high-tech communication means. In addition to mobile phone 2/3/4/5G signals, signals such as WiFi signals, Bluetooth headphones, walkie talkies, etc. need to be shielded. However, the old mobile phone jammer can only shield 234G, not 5G, which requires adding 5G specific frequency band to the original machine to shield 5G.
② Effective shielding distance: for the general examination room, at least one mobile phone jammer should be installed in a classroom of the examination room. This one should be able to block the wireless signal of the whole examination room, and it is better not to interfere with the normal life of the surrounding residents. Therefore, the effective shielding distance should be determined according to the specific conditions of the examination room.
③ The stability of the shielding effect must ensure that the whole process of shielding during the examination can not occur intermittently.
At last, the mobile phone jammer operates in low voice when it is working, so it will not produce noise at all. There is no need to worry about disturbing the examinee who is taking the exam. At the same time, its radiation level meets the national safety standards, and it will not cause physical harm to the invigilator and examinee.
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