With the continuous advancement of science and technology, while smartphones bring convenience to people's lives, the use of mobile phones to engage in illegal activities also emerges one after another. For example, in exams, cheating in exams used to rely on cheating, smuggling notes, and even writing formula questions on arms, legs, and arms. Today, all you need is a mobile phone with an internet connection to cheat on exams, and that's behavior that needs to be curbed.
During the high school and college entrance examinations in various schools, many schools are faced with the problem of preparing for the examination room. In addition to the discipline and supervision of the examination room, it is necessary to prevent cheating. In order to prevent cheating in the examination room, many schools have installed wireless signal jammers. wifi jammer is a good helper that can effectively prevent and prevent cheating.
What does a wifi jammer do?
Wifi signal jammers can block all communication between a device and its information source. How it works will depend on the type of communication against interference. Different devices use different communication methods. Sometimes devices use more than one method at the same time.
Signal jammers prevent a device from communicating with its source by mimicking the same frequency. By mimicking the signal, they overpower the actual signal being sent. Signals generated by target devices in the area are disrupted by this behavior.
Most devices that use different communication methods do this to be more compatible with other devices. For example, cell phones can often connect to Wi-Fi, Bluetooth, and cellular data. This makes them harder to jam than devices that only use one method.
Other devices offer different methods, so they are less susceptible to interfering devices. The prisoners' ankle monitors are "anti-jamming", and if one signal is lost, they will try to connect to others.
The benefits of wifi blocker:
① Small size, no noise
From the perspective of the size of the wireless wifi signal jammer, it is not very large and can be conveniently placed anywhere in the examination room. There is no noise during operation, and it will not affect the test candidates due to the harsh sound.
② Harmless to the human body, no effect on electronic equipment
Don't worry about the impact on other electronic devices, the wifi jammer device is mainly used to block the mobile phone signal, just cut off the connection between the mobile phone and the base station, and will not cause harm to the human body.
③ Wide coverage and low cost
With the development of science and technology, the range of wifi frequency jammer that can be shielded is getting wider and wider, and one can cover a large area, which greatly reduces the cost.
