Huangpi District Admissions Office responded to the incident, saying that due to loopholes in 5G signal shielding, candidates can upload test questions on their mobile phones. So the question is, is the whole leak really 5G's fault? We use Cell Phone Signal Blcoker For Schools now, is there really no way to get on 5G? Today, Teacher Xiaozao will give you a good explanation of this problem. As we all know, we are now in a high-tech era, and the means of communication are very developed and convenient. This brings advantages and disadvantages. The disadvantage is that it is easier to reveal secrets, such as cheating in the college entrance examination we are talking about today. In order to prevent candidates from cheating using mobile phones and other communication tools, the competent authorities have always clearly stipulated that it is strictly forbidden to bring any electronic equipment into the examination room. Generally speaking, they will take the following measures to prevent: 1. When entering the examination room, scan through the security check. This is similar to when we usually enter train stations and airports. 2. Manual body search. Staff will touch you to see if you are carrying contraband. 3. The most important and most effective method is cell phone jammer . As the saying goes: "The road is one foot high, and the magic road is one foot high". Obviously, this guy from Wuhan, Hubei is really good. He not only passed the three levels, but also escaped the eyes of the on-site invigilator and successfully completed the "impossible task". The invigilator's dereliction of duty definitely exists, and the official notification also imposes penalties, so we won't talk about it more. Next, we'll focus on why this phone jammer can't block 5G signals.
Cell phone signal jammers are also called mobile communication jammers, cell phone signal isolators, conference security devices, etc. The signal jammer transmits a strong signal with the same frequency as the downlink frequency band of the mobile phone, and is sent to the mobile phone by the base station with the signal tuning, so that the base station can send to the mobile phone. The downlink signal is deformed, and the mobile phone cannot be recognized, causing the connection between the mobile phone and the base station to be interrupted. Simply put, its main function is to make the phone unable to use normally. Its essence is to implement electromagnetic interference on the wireless network on which the mobile phone communication depends, so that the mobile phone cannot access the network, so that it cannot receive information from the mobile network, and cannot send information through the network. With the promotion of Cell Phone Signal Blcoker For Schools , it also brought some bad effects.