Make Your Own Cell Phone Signal Blocker Prevent Cheating
So how does exam Nake Your Iwn Cell Phone Signal Blocker work? In fact, its principle is to create a shielding range that can shield communication signals within a certain range. In this, any communication signal equipment will show a state of no signal and no network; due to the current "black technology" Basically, they rely on the means of communication to get in touch with the outside world, so in this process, receiving and sending signals is an essential process, and the test signal blocker can effectively isolate this communication signal and let this cheating method. It was impossible to achieve, and finally it was achieved to prevent the occurrence of "black technology" cheating in the examination room, which ensured a stable examination room order for the examination rooms of major schools, so that candidates can take the exam with peace of mind.
Try not to use mobile phones near the test room because Nake Your Iwn Cell Phone Signal Blocker are all electromagnetic waves, and there are many types of electromagnetic waves. It does not affect the use of other things, but it will affect the use of mobile phones. Therefore, do not use mobile phones near the test room. Test room signal jammers pay attention to the use distance Although the test room signal jammers are very reliable, it should be noted that it is not a panacea. First of all, most of the test room signal jammers are only used at a distance of about 20 meters, usually a room of dozens of square meters. It is enough to use an cell phone jammer in a small classroom, but if the range is larger, the effect will not be so obvious. The fact that the signal interference is relatively strong is its advantage and disadvantage. Because this mobile phone jammer mainly uses a signal interference method to block the signal connection between the mobile phone and the base station. Therefore, there are some mobile phone signal jammers with good performance, which may be too effective and will affect the use of nearby mobile phones.
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