Block Skype Calls On Cell Phone To Prevent Cheating In Exam Rooms

Perfectjammer 2022/06/19

Nowadays, there are more and more manufacturers and schools using Block Skype Calls On Cell Phone . In the college entrance examination, the special 5g mobile phone signal shielding device for the examination room is also used, which can effectively prevent the candidates from cheating in the examination room. The price of the special signal shielding device for the examination room needs to be based on different It depends on the needs and configuration. The common models on the market are standard versions, with a built-in 10-channel antenna blocker, which can effectively block 2G, 3G, 4G, 5G and 2.4G, wifi and other wireless signals. When choosing a mobile phone jammer in the examination room, you need to choose whether you can increase the channel frequency band, 5.8Gwifi and walkie-talkie frequency bands, according to the use site. If the examination room is too large or there are too many obstructions, it is necessary to increase the channel and frequency band of the 5g mobile phone signal jammer. For example, if you choose an external signal jammer, you can add 12 channels, and if you choose a built-in signal jammer, you can increase it to 14 channels. More than 18 channels, the more channels, the better the effect. Generally, the test room only needs 12 built-in channels to meet the needs of 5g signal shielding.

At present, the Block Skype Calls On Cell Phone used in the test room are all frequency bands, which can interfere with all frequency bands of 2G/3G/4G/5G of the three operators, and the WIFI signal and Bluetooth signal can also be completely blocked. The above is the principle of mobile phone signal jammer. However, the frequency range of electromagnetic waves is from several Hz to tens of hundreds of GHz, and each segment may be used as a signal for communication. Will there be some special frequency bands used in the examination room? This is true of other radio communication tools, and radio communication tools with dedicated frequency bands "came into being" in this context. The operating frequency bands of these devices are selected outside the frequency range covered by cell phone jammer , and cell phone signal jammers do not work on them. For this special radio communication tool, the examination room is specially equipped with a monitoring vehicle equipped with a radio monitor for real-time monitoring of radio wave signals of unknown origin. So how exactly do radio detectors work? Because electromagnetic waves have the characteristics of "closer and far smaller", by constantly moving the detection vehicle, the monitoring equipment can locate the position of the signal transmitter according to the distance and the strength of the signal, and capture the offenders who use these radio communication tools on the spot. Nowadays, drones have also appeared in the college entrance examination room, which can perform signal positioning faster. Therefore, neither mobile phones nor these special radio equipment can play a role in the college entrance examination room.

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