Most exams use mobile phone signal jammers to achieve the fairness of the exam. The development of mobile phones has promoted the development of telephone jammers. Mobile phone signal jammers can help students learn. WiFi jammer is definitely a good security product. Many employees complained after using jammers. The effect will be obvious. This month’s business volume increased by 10%. The use of jammers can improve performance. GPS jammers are a popular product of the company. The most expensive is 3 dollars or 4,000 dollars. The signal cutoff range is different, and many companies buy small jammers, which are located in conference rooms.
This depends on the signal strength at the blocked location. The maximum blocking radius of the signal wifi jammer is 20 meters. It is actually a large area. The most common signal suppressors interfere with one or two frequency bands. High-power jammers can cut off the highest frequency band of 868MHz. The total output of this device is 15W. The power supply is 50-60 HZ. After fully charged, you can work for a long time. The mobile jammer, AC adapter and 5 antennas are all part of the device. It can also be used in cars.
The jammer is like an invisible wall. For the installation and use of WiFi jammers, the minimum principle must be followed. A telephone signal shield is installed in the campus. I try not to use my mobile phone at night. However, when I use my mobile phone at home, I heard someone say that the signal is unstable. I have a problem related to mobile phone signal shielding equipment. Blocking cell phone signals can make students feel comfortable studying and resting.