Block Incoming Cell Phone Calls Samsung To Prevent Cheating In Class
The Baden-Württemberg Ministry of Education and Culture issued a statement in this regard, clearly stipulating the use of such devices: Regardless of data protection checks, the use of radio waves ("interceptors") completely blocks the use of mobile phones from the Ministry of Education's point of view The received device is not legally permitted. Since in the GSM frequency range, only the mobile network operator has access to the frequencies he bought, it can also operate Block Incoming Cell Phone Calls Samsung . We can see that most people support teachers who use cell phone jammer . Cell phone jammers can block most signals, effectively preventing students from cheating and using cell phones in class. So using jammers wisely isn't a bad thing.
When the phone communicates with the base station, Block Incoming Cell Phone Calls Samsung is like a troublemaker, deliberately making noise around you. The noise signal is so large that the mobile phone cannot hear what the base station is saying, and the base station cannot hear what the mobile phone is saying. In fact, this is not to block the mobile phone signal, but to erase the signal sent by the mobile phone in a large number of noise signals, so as to achieve the purpose of interference. At present, the mobile phone signal jammers used in the examination room are all frequency bands, which can interfere with all frequency bands of the three major operators 2G/3G/4G/5G, and WIFI signals and Bluetooth signals can also be blocked. The above is the principle of mobile phone signal jammer. However, the frequency of electromagnetic waves ranges from a few Hz to several hundreds of GHz, and each segment can be used as a communication signal. Will there be some special frequency bands used in the examination room?
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