The development of modern communication technology by leaps and bounds requires technological security companies to keep pace with the times and continuously develop and strengthen their own strength to meet multiple challenges. The widespread popularity of mobile phones brings convenience to people, but also raises new issues for communication security and confidentiality. Eavesdropping, leaks, cheating in examination rooms, medical accidents, and gas station explosions have emerged one after another, accelerating the promotion and promotion of Cell Phone Jammer Dnc Convention use. It is mainly used in examination rooms, prisons, gas stations, mobile phone bomb prevention, oil depots, liquefied gas stations, detention centers, interrogation rooms, courts, labor reform teams, conference rooms, theaters, churches, libraries, school dormitories, special security and confidential occasions (Confidential offices, negotiation rooms, mobile vehicles, mobile politicians and business dignitaries guarding) scenes, etc., and the status of mobile phone jammers in social life is becoming more and more important. We prohibit the use of mobile phones in various examination rooms, schools, gas stations, churches, courts, libraries, conference centers (rooms), theaters, hospitals, governments, finance, prisons, public security, military powerhouses and other occasions. Access as above In occasions, the use of mobile phones is prohibited, but in the above occasions, the mobile phone will be turned on and brought in if you are not paying attention. Therefore, a technology is urgently needed to shield the mobile phone without affecting the use of other electronic products. Was born. cell phone jammer
The working principle of the mobile phone jammer: In a certain frequency range, the mobile phone and the base station are connected by radio waves, and the data and sound transmission are completed with a certain baud rate and modulation method. In view of the above communication principle, the Cell Phone Jammer Dnc Convention 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. Eventually, the mobile phone has no signal and cannot receive text messages or calls. The current mobile phone jammers are all full frequency bands. It can shield all the 2G 3G 4G signals, 2.4G WIFI signals and Bluetooth signals under all the three operators of China Mobile, China Unicom and China Telecom. Its principle is to use its own frequency. To interfere with the mobile phone receiving the frequency sent by the base station and the wireless router, so as to achieve the purpose of shielding them.
