In the past study life, we have experienced many exams. We are used to cheating in the college entrance examination. Students who use communication equipment to find loopholes can always use all possible ways to cheat. The most common is to use mobile phones to cheat. It is the most common and common cheating method. Students use mobile phones to cheat. For students, this test will become worthless. Because we want to prevent this kind of behavior, but we are afraid that students will secretly bring mobile phones into the examination room, what should we do? Don't panic, at this time, you can use a mobile phone jammer for sale to prevent students from using mobile phones to cheat in exams.
Mobile phones can often surf the Internet and make voice calls because mobile phones log in to base stations through network signals, and then base stations are connected to each other through electromagnetic waves, and data information is transmitted and exchanged according to a certain number of times. This is the principle of mobile phone communication. The mobile phone jammer is based on this principle. It sends out a white noise signal with the same frequency as the base station, but with a stronger intensity to interfere with the transmission of mobile phone signals. This makes the mobile phone unable to recognize the normal signal sent by the base station, so the mobile phone cannot receive the signal sent by the base station, and the mobile phone cannot receive the signal. Under such a signal, it is impossible to send messages and make calls.
At present, the industry application of cell phone jammers is still very wide. When taking exams on campus, the mobile phone signals in the classroom can be interfered or blocked by using mobile phone jammers in the classroom, which truly makes every student take the exam fairly. When holding some extremely important meetings, the use of mobile phone jammers can also effectively interfere with mobile phone signals, thereby preventing the leakage of important commercial secrets in the meeting.