As a very important communication device, mobile phones have many powerful functions for the transmission of information between users, which may lead to the leakage of important information from some institutions. Many departments have adopted the installation of frequency interference machines to ...
The current mobile jammer shielding technology is relatively mature, and the shielding equipment has a high interference effect, which can cover the communication area within the examination hall, effectively blocking the mobile phone signal inside the examination hall, and ensuring its fairness. Th...
Recently, a customer inquired whether portable frequency jammers should be equipped with omnidirectional antennas or directional antennas when in use? Which one is more convenient and works better when used? I will answer these two questions for everyone. As the name suggests, portable frequency jam...
If the area that needs to be shielded by signal jammers is located in a busy urban area or densely populated area, and there are many ordinary people gathering in the surrounding area, it is not recommended to operate the signal jammer system continuously for a long time. This is because several ess...
Friends who are familiar with mobile jammers should have encountered situations where they use a base station with an operator not far from the site, or have installed an indoor signal distribution system in the corridor. This has greatly affected the shielding effect of mobile jammers. In the event...
With the popularization of 5G signals, mobile jammers have also added signal frequency bands to address this situation, and current signal shielding devices can block 5G signals. Why do some shielding devices have the problem of not being able to block 5G signals? In fact, this is mainly because the...
The current demand for mobile phones is very high, almost every person has one. And in some places, there is no need for this, leading to the derivation of signal shielding products. How these products interfere with communication signals? Firstly, we need to understand how communication signals are...
The examination hall is a sacred and solemn place, but there are always people who maliciously use illegal methods in the examination, which will increase the difficulty and pressure of maintaining discipline and order in the examination hall. The main means of cheating is the use of communication e...
In the current various types of exam processes, telephone jammers have almost reached complete popularity, and they have become an important tool to maintain order in exam rooms and ensure fairness and impartiality in exams. During the process of building standardized examination halls, various exam...
Small power signal jammer is commonly used to shield indoor Mobile phone signal under normal conditions. And high-power signal jammers are mostly used outdoors, with only a small portion used indoors, mainly to solve the problem of using high-power mobile phone shields indoors in large and transpare...
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