When using frequency jammers, customers sometimes find that in some large rooms, only one jamming device is not enough to cover all the shielded signals. In this case, at least one more shielding device needs to be added. So the customer asked: Can the effect be doubled if two frequency jammers are ...
Most people know that wireless jammers will be used in schools, prisons, detention centers and other places. However, wireless jammers are also used in some special companies or confidential conference rooms. For example, in an office building, a company wants to install a wireless jammer in the off...
Children's addiction to online games has always been a headache for parents, so use the telephone jammer to help you. With the rapid development of mobile communication technology and the popularity of smart phones, tablets and other smart devices, students have reached the popularity of using smart...
The use of 5G mobile phones is becoming more and more common. If the old network jammer in the exam room does not upgrade to 5G, the 5G signal cannot be shielded during the exam, and it is easy for candidates to cheat using 5G mobile phones. So this requires upgrading the previous machine. What shou...
Whether it is the National Civil Service Test or the English Test Band 4 or Band 6, signal jammers will be used in the examination room to shield all kinds of cheaters. However, many people do not understand how the signal jammer works, or even what signals can be shielded by the shield. Today, let'...
Recently, a customer asked about the need to configure network jammers for the examination hall project, but there are many base stations nearby the examination hall. There are eight base stations distributed within a radius of 300 meters. How to arrange network jammers on this site. The reason why ...
In one's life, one will experience all kinds of examinations, including those in school, and the middle school and college entrance examinations. After entering the society, there are also various skills tests, civil service tests and so on. No matter what kind of test, fairness is the most importan...
As far as we know about signal jammers, we probably know that shielding machines can interfere with mobile phone signals and can be used in the examination room to prevent candidates from cheating with mobile phones. We are not clear about how shielding machines work and their types. According to th...
Some customers found that in the actual use process, the shielding effect of the telephone jammer in the examination room is not ideal after it is turned on. If the factors of poor shielding equipment selection and performance are excluded, the installation position of the shielding equipment will b...
"It's not surprising." 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 ma...
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