Simply using the "jammer blocking" method does not produce a fundamental effect

　　The antenna is completely invisible from the outside of, so that the antenna is not exposed, and the antenna is built-in, which is also a kind of protection for the antenna, which can avoid accidentally bumping the antenna during the transfer process, and it is easy to knock the antenna off. The machine can no longer be used and needs to be returned to the factory for repair. Continued use will cause the radio frequency module inside the conference room 88 to burn out. If the mobile phone signal shielding device with built-in antenna needs to be transferred, it is very convenient. You can directly grab the groove handle on the back of the machine, which is simple and convenient. Even if there is a slight bump, the internal antenna will not fall off, which can ensure the mobile phone Normal use of signal jammer gps.

　　The school adopts this countermeasure, the foothold is to improve the efficiency of the students' class, and to be careful and meticulous about the school spirit. However, just using the "blocking" method alone cannot have the fundamental effect. If students are unwilling to take classes, they can still use their mobile phones to read books and play games after 88 blocks the mobile phone signal. Finally, the high efficiency of the students' class is still not high. In my opinion, "sparse" is more important than "blocking". The focus of dealing with this problem is to enhance students' initiative and enhance their learning interests. If students are allowed to take the initiative to study hard in class without distraction, the actual effect will undoubtedly be more obvious than all needs. The school forcibly blocked the mobile phone signal. The original intention was to control the students and improve the teaching level. But the real situation is that in today's rapid development of high-tech, as a special tool for game entertainment, there are many substitutes for mobile phones, which are strictly prohibited. College students do not study seriously in teaching, and the reasons behind them include a single assessment mechanism for course content, poor teaching methods, and inability to stimulate students' initiative. Therefore, while considering from the perspective of students, school leaders should also pay attention to improving the interactivity of classroom teaching, so that students can consciously integrate into the teaching classroom in a real sense.

　　The creation of mobile phones has indeed shortened the distance between people and brought a lot of convenience to everyone's life. However, with the popularity of mobile phones, everyone has basically reached the situation where the machine cannot be separated from the body, which brings great convenience to many occasions. brought great harm. Therefore, 's shopping malls also followed. So, what occasions are mobile phone signal jammers suitable for? The scope of application of mobile phone signal GPS jammers is still very wide. Some secret institutions, party and government agencies, colleges and universities, etc., can be understood in detail. Party and government agencies, companies, etc. also have demand for 88 . The frequency of meetings of party and government organs, companies, etc. can be said to be very high, and in order to allow participants to concentrate more on the meeting and learn the spirit of the meeting more deeply, it is also necessary to guard against the use of mobile phones. When the leader is in a meeting, he turns on the mobile phone signal blocker to block the mobile phone signal. The leader is happy and listens carefully.

　　Because there are two ways of Bluetooth and WiFi that are not blocked. Many people do not understand the difference between the three methods of Bluetooth, Wi-Fi and mobile data. It seems that they are all wireless communication technologies. In fact, the difference between the three is mainly in the frequency band. In mobile communication technology, 2G mainly works in the 900-1700MHz band, 3G works in the 1900-2100MHz band, and 4G works in the 2300-2500MHz band. While Bluetooth and WiFi work at 2.4GHz. Full-featured It can already be hand-held size, which means that the aforementioned jammers gps that can block 2G, 3G and 4G cannot cover the frequency bands of Bluetooth and WiFi. So the jammer has evolved again. 2.4G is added to the range of interference to achieve interference and coverage of Wi-Fi and Bluetooth. So far, there are several wireless communication methods commonly used in human society. All are completely covered. In the frequency band that can be predicted, the mobile phone signal jammer can better complete the task.