Schools install cell phone jammers as responsible behavior
Many schools are installing "cell phone signal jammers" in classrooms and dormitories. In this regard, many students expressed their disgust. In fact, it is a necessary measure to eliminate the interference of mobile phones in the classroom, and it will not affect their health. Installing "cell phone jammers" in classrooms can be costly and unpleasant.
The phenomenon of "playing with mobile phones in class" has turned the classroom into a meeting place of various information in the real society and cyberspace. Students are in such an environment, and under the impact of various information, their emotions are easy to become impetuous. After the "mobile phone jammer" is installed, outside information cannot come in, the classroom becomes an independent space, and its proper functions are restored. Students can concentrate and interact with teachers in the classroom. Therefore, the "mobile phone jammer" shields impetuousness and leaves quietness.
Installing a "cell phone jammer" is not a random act. The range of the "jammer" to block the signal is limited to the classroom, and as long as you walk out of the classroom, the mobile phone signal will be restored. In order to ensure that it will not affect the health of students, the school attaches great importance to product quality. The installed "jammers" are qualified products that meet the relevant national standards for electromagnetic radiation, will not affect the human body, and are already in use in many schools and examination rooms. It can be seen that when the school does this, its attitude is serious and it is responsible to the students.
The scope of mobile phone jammers is limited to classrooms, indicating that the school's actions are moderate and will not damage students' freedom of communication and expression. The exercise of any right has boundaries and cannot harm the rights and public interests of others. The same is true for the freedom of communication and freedom of expression that citizens enjoy in accordance with the Constitution and the law, and cannot exceed their due limits. If students play mobile phones in the classroom, if it affects the normal teaching order, it exceeds the limit of their rights and should be restricted.
The working principle of the mobile phone signal jammer gps is within a certain frequency range. The mobile phone and the base station are connected by radio waves to complete the transmission of data and sound with a certain baud rate and modulation method. The jammer scans from the low-end frequency of the forward channel to the high-end frequency at a certain speed during operation. The scanning speed can cause garbled interference in the received message signal of the mobile phone. The mobile phone cannot detect the normal data sent from the base station, so that the mobile phone cannot establish a connection with the base station, so as to achieve the purpose of shielding the mobile phone signal. No service system, etc.