Today, various cell phone jammer devices emerge in an endless stream. Some of them can even evade detection after masquerading. Cheating candidates enter the test room to output test questions to the outside world, and then people outside the test room help to answer the questions to achieve the purpose of cheating, and the basis of all this is that it must be through the Internet! In this case, signal shielding is particularly important. How does signal shielding work? To put it simply, take a mobile phone as an example. Mobile phones need to communicate with other devices outside the test room through signal towers, while wireless communication requires electromagnetic waves to carry. Depending on the properties of electromagnetic waves, both devices need to be within a certain frequency range. Send and receive, so Gps And Cell Phone Blocker is the frequency that affects your electronic device, so that the frequencies of the two sides are different, so as to achieve the effect of shielding. With the increasing popularity of mobile phones, the current situation of students using mobile phones has even reached a large number of primary school students, and the proportion of junior high school and high school is getting higher and higher. At present, although each school district has already stipulated that teachers are not allowed to pick up their mobile phones during class, students must also turn off their mobile phones or adjust the vibration of their mobile phones.
Due to students' self-discipline and self-consciousness, they have been involved in the daily teaching management of the campus. Keep causing trouble! For example: there will always be some students who forget to turn their mobile phones to vibrate for some reason, suddenly call or send text messages during the normal class, especially when some interesting and tricky sounds sound, the originally quiet class and normal teaching will be disrupted. Immediately affected. interrupt. Some students who are in a coma in class still have the ability to send text messages on their mobile phones. If they don't want to be in class when they're in class, they don't need to whisper at the table next to them, just use their cell phone to send and receive text messages. Today, cell phones are equipped with Internet access. Students can often use their mobile phones to chat, read novels, and play games in class. Many schools have begun to install Gps And Cell Phone Blocker to block some unwanted signals.
