• 2023-04-02

Signal jammers have become standard equipment for exams. Not only for the middle school and college entrance exams, but also for graduate exams, civil service exams, and various qualification certificates. Signal jammers are needed to prevent candidates from communicating with the outside world thro...

• 2023-04-02

High power signal jammer is a device that can block or interfere with wireless signals of a specific frequency band. It can be used to protect important places, personnel, and equipment from interference or threat from wireless signals. The working principle of a high-power signal jammer is to use h...

• 2023-03-26

When using communication signal blocking devices such as frequency jammers, it is necessary to achieve reasonable compliance and try to ensure that other people's communication and signal shielding requirements are met without delay. When using signal shielding products, it is necessary to achieve r...

• 2023-03-26

During normal communication, a mobile phone converts all operations on the phone into data, and then transmits the data through electromagnetic waves. Electromagnetic waves associate mobile phones and signal base stations within a certain frequency range, and then complete data conversion and transm...

• 2023-03-26

In order to ensure exam order and avoid unnecessary cheating methods, signal jammers are used during some important exams, and usually one is placed in each exam room. In addition to the examination room, the conference room is also a relatively common use of signal jammers, especially in meeting pl...

• 2023-03-19

So far, mobile phones have become a necessary tool in life, which can be said that everyone has one hand. However, in some situations, mobile phones can cause trouble for people. For example, some people will use their mobile phones to cheat in exams and leak secrets through their mobile phones in c...

• 2023-03-19

In exam venues, 5G signals may adversely affect exam order and fairness of candidates. Therefore, in order to maintain the order and fairness of the exam, generally using signal shielding equipment has become a common solution. The principle of a frequency jammer is to transmit signals at a certain ...

• 2023-03-19

In some particularly important examinations, it is necessary to ensure discipline in the examination room. In order to ensure that the exam is just in case, more and more examination halls have adopted signal jammers to shield the mobile phone signals in the examination hall and avoid the impact dur...

• 2023-03-12

The construction of most standardized examination halls includes the installation of some signal shielding machines. However, there are always some customers who will find that the shielding effect is not ideal after the frequency jammer of the examination hall is turned on and working. If the facto...

• 2023-03-12

At present, there are many types of wireless jamming devices on the market, but there are still some differences. Some shielding devices are used for projects with high requirements and high standards, which require stable performance and can be targeted to interference according to the site environ...