During the final exam, everyone might be wondering how to make some cheat sheets and how to get some answers so that they don't miss the exam. But generally in the examination room, you can only rely on yourself, and rely on others to always be restricted, so some people catch the answer when they don’t hand in their mobile phones, but there is the hateful signal blocker in front of them. I am really anxious and know the answer. It's on the Internet, but it just can't be loaded. I'm really anxious.
If I can get the scholarship every year, I will tell you what signal can be shielded by the shielding device to effectively shield CDMA (China Telecom), GSM (China Mobile, China Unicom), SCDMA (Netcom Da Lingtong), DCS (1800MHz), PCS (1900MHz), PHS (Telecom PHS), 3G mobile phone signal, WIFi and 4G mobile phone signal and other communication signals. Secretly tell you how to make the mobile cell phone jammer malfunction. What is the shielding principle of the mobile phone jammer? The working principle of the mobile phone is that within a certain frequency range, the mobile phone and the base station are connected by radio waves, and the mobile phone is connected with a certain wave. Special rate and modulation mode complete the transmission of data and sound. The working principle of the signal jammer: the jammer scans from the low end frequency of the forward channel to the high end at a certain speed during the working process. This scanning speed can cause garbled interference in the message signal received by the mobile phone, and 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.
The mobile phone is manifested as a search network, no signal, no service system and other phenomena. It can be seen that its shielding ability is still very good, but when he was traveling in high school, he once heard a junior on the train say something. Once in his sophomore year, 4G was not popular at that time. Jammers can’t block 4G signals yet, but there are mobile phones that support 4G signals, so some students use their own living expenses to buy them, some students cheat to prevent them from taking courses, and some get scholarships. It's cool. But the school discovered this in the junior year. It’s not too late to make up for it. It hasn’t happened until now. However, in 17 years, China plans to vigorously develop 5G, so everyone still has a chance to take advantage of the loopholes..., now Teach you a simple cracking method, most mobile phones can be used, the length of time to crack depends on the quality of your phone. In fact, the method is very simple. Enter your phone settings, click "Network Settings", change the network mode to "Manual Mode", and then enter "Network Search", wait until the words "China Mobile" or "China Unicom" appear, then Exit now. The phone will have a signal, but the length of anti-blocking time depends on the quality of the phone. This method is applicable to most mobile phones. There is also a wireless network, but it is estimated that many classrooms do not support wireless networks, and the other is to loosen the frequency band antenna on the jammer that shields your mobile phone signal. If you loosen it, it will be useless.