The examination room is equipped with a wireless signal jammer. Is there any way to break through?
Today, in any formal or important examination, a wireless signal jammer will be installed in the examination room. The purpose is self-evident, that is, to strictly prevent candidates from cheating in the examination by means of mobile phones or other electronic instruments, wireless communication equipment, etc. through technical means. Therefore, a few days before the big exam, we always receive some calls asking us to learn some ways to crack the blocked mobile phone signals. Then the question is: if it is clear that the examination room is equipped with a wireless signal jammer, is there really a way to break through?
Let's make an assumption: if the students taking the exam are really able to bring their mobile phones into the examination room, and the wireless signal jammer installed in the examination room is purchased in the last one or two years, and has been troubleshooted and repaired before the exam. In other words, these are definitely not outdated and old products, because old products are likely to not support 5G signal blocking or even 4G signal blocking. Then under such assumptions, candidates should not try to find any way to crack the wireless signal jammer, because once the shielding signal is emitted, it is really impossible to crack or counter-interfere within its effective shielding range.
Based on the above assumptions, why do some candidates think that someone can achieve a breakthrough in the wireless signal jammer from other sources? The reasons for this result are not difficult to analyze: the first possibility is that the organizer of the exam did not immediately follow up on the upgrade and iteration process of the wireless signal jammer, resulting in only a part of the various mobile phone signals in the examination room being blocked, while another part of the mobile phone signals were missed. The second possibility is that the preparations before the exam were not done well, and the wireless signal jammers were not checked one by one. Some equipment may have malfunctioned, resulting in the failure to truly exert the shielding performance during the exam. There is also a third possibility, that is, the products provided by the manufacturer of the wireless signal jammer have technical defects. For example, the transmission power of the shielding module in the device is too small, the frequency adjustment of the shielding module is incorrect, or the heat dissipation performance of the wireless signal blocker for sale itself is poor, resulting in a frequency deviation of part of the shielding module after the device has been working for a period of time, etc.
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