The rapid development of communication nowadays has made the communication between people closer. However, communication technology brings convenience to people and also brings new challenges to communication security and confidentiality. There have been incidents of mobile phone wiretapping, leaks, cheating in examination rooms, major gas station explosions, and the use of mobile phones by persons serving sentences in prisons, and they can direct their external associates to continue their illegal activities from their restricted prison rooms. activity. They plan behind the scenes to remove the charges, direct killings, and even contact outside associates to carry out riots and escape from prison. The degree and severity of its harm has attracted the attention of leaders at all levels.
The high-power mobile phone signal jammer is a product developed according to the market demand and adopts special advanced technology. The principle is to isolate and convert the signal of the transmitter or instrument through the semiconductor device modulation edge, through the optical sensor or the magnetic sensor, and then demodulate it back to the original signal before isolation, and at the same time supply the power supply for the isolated signal Perform isolation processing to ensure absolute independence between the converted signal and power supply. When it is working, it can form a shielded magnetic field within a specified range, making mobile phones unable to make or access, thereby achieving the purpose of forcibly banning mobile phones, completely solving the various hazards brought by mobile phones, and allowing people to enjoy High technology brings speed and does not cause interference to the surroundings. It can completely eliminate the possibility of inmates in prison using mobile phones to communicate.
Friends with cars should know that when you go to a gas station to refuel, you are not allowed to make and make calls, because when the mobile phone battery is activated, it can generate enough energy to cause a slight spark, which may cause a fire. Petroleum, chemical, security and other relevant departments have expressly stipulated that the use of mobile phones in gas stations is prohibited. A few days ago in Myanmar, a man used a mobile phone to talk at a gas station and caused an explosion. The explosion directly caused a brick house, 50 gallons of diesel fuel, and 7 car tires to burn, and the man who called was seriously injured and killed... The fire caused by using a mobile phone, There have been many cases across the country, and it has attracted many attentions. Relevant departments have recommended the use of mobile phone signal jammers at gas stations under their jurisdiction. Sinopec and China National Petroleum Corporation have taken the lead in using mobile phone signal jammers at gas stations in some areas.
Each city and department can use mobile phone signal jammers according to their actual conditions. The effective shielding range will be different in different use sites, and the shielding range of mobile phones of different standards may not be the same in the same site. Therefore, the management of the installation and use of mobile phone signal shielding requires a relevant functional department to attach great importance to it, not only without affecting the normal use of public mobile communications, but also to ensure that the mobile phone signal shielding device meets its own needs for safe use.