• 2022-10-09

Nowadays, frequency jammer has been widely used in school examination room, prison detention center, company meeting room and other occasions, especially in school examination room. How to select these signal shielding devices? What problems should education departments pay attention to when purchas...

• 2022-10-09

As a powerful tool in the examination, the signal jammer still plays an important role in the examination in order to ensure the fairness of the students' examination in some important examinations. However, there will inevitably be some accidents in the use. How can we reduce the accidents. The int...

• 2022-10-09

Now, mobile jammers are not so strange, especially in schools. It is usually used before and after the classroom and in preparing for the exam. This device is not only a simple way to shield mobile phone signals, but also a fair competition environment for candidates. The installation of the mobile ...

• 2022-10-09

We all know that in some special situations, the telephone jammer is required to shield the mobile phone signal to prevent leakage or cheating. For example, some confidential meetings are not allowed to carry mobile phones, and when they arrive, the mobile phone signal will be shielded by the teleph...

• 2022-10-09

1. Mobile phones have become a new criminal means, and signal jammers can bring necessary help to social stability. Some opportunists use mobile phones to cheat in exams, and some terrorists and enemies also use mobile phones to detonate bombs. Facts show that mobile phones have become a tool for cr...

• 2022-10-09

"It's not strange." Communication experts explained that 5G is a new network system introduced in recent years, which uses some new radio bands. Many old mobile jammers do not support shielding 5G signals. According to the division of 5G frequency band, the 5G of China Telecom and China Unicom mainl...

• 2022-10-02

Nowadays, with the rapid development of science and technology, the functions of mobile phones are becoming more and more powerful, and gradually become an irreplaceable important communication tool in people's lives. Of course, there are both advantages and disadvantages. Recently, the negative imp...

• 2022-10-02

How does the wireless jammer interfere with the signal? Give some examples. As we usually see, the shielding instrument mainly shields the signals used by mobile phones by transmitting interference signals of various frequency bands. The wireless jammer transmits interference signals of various freq...

• 2022-10-02

With the advent of the communication era, the use of mobile phones, PHS, wireless phones and other mobile communication devices has enriched people's daily life and greatly promoted the development of social economy. At the same time, the unrestrained use of mobile communication devices, such as mob...

• 2022-09-30

In order to deal with large illegal gatherings, sudden mass incidents, and bomb dismantlement tasks of suspected explosives, it is very important to start the vehicle jammer to shield the wireless signal in case of these events. The vehicle jammer adopts an ultra wideband design. All common wireless...