• 2024-12-27

During the annual College English Test Band 4 and Band 6, as well as some qualification certificate level exams, there will be listening test content. Before the exam starts, the examination room will turn on radio jammers to block the interference of mobile phone signals in the examination room, in...

• 2024-12-27

In some special occasions, the use of mobile phones is restricted, and the most common way is to install handheld jammers on site to block mobile phone signals. However, there are always some people who want to figure out how to crack it and make their phones work properly. So, are the cracking meth...

• 2024-12-20

Portable jamming devices are installed in important and confidential areas to ensure that internal information cannot be leaked. Separate blocking of mobile phone signals does not affect the normal operation of other electronic products. This aspect is particularly important, as there are many elect...

• 2024-12-20

In recent years, prisons, detention centers, and other regulatory institutions across the country have invested funds in purchasing mobile jammers, hoping to use them to scientifically and effectively control and prevent mobile phone signals in prisons, and eliminate security risks caused by illegal...

• 2024-12-16

The reasons for different frequency interference signals caused by external and environmental factors: Due to the different power and channel numbers of base stations such as China Mobile, China Unicom, and China Netcom, as well as the varying distances between the base station and the interference ...

• 2024-12-16

When the shielding area is relatively large or there are many examination centers, and they are distributed in several teaching buildings, dozens or even hundreds of signal jammers will be installed, which is often inconvenient to manage. With a large number of signal jammers, daily inspections are ...

• 2024-12-06

Nowadays, RF jammers are installed in almost every examination room to prevent candidates from using their mobile phones to cheat during the exam. Careful friends will notice that after using the RF jammer for a period of time after turning it on, the chassis will become very hot. Everyone knows tha...

• 2024-12-06

What is a car mounted electronic jamming device? Today, let's trace the origin and development of this artifact together. At the beginning, in car electronic jamming machines were not actually designed for exam scenarios. The initial application scenario was actually in prisons. In order to ensure t...

• 2024-12-02

With the increasing popularity of mobile phones, more and more users are using them frequently, and many people do not pay attention to the occasion of use, and do whatever they want. In some specific places, such as conference rooms, courts, libraries, schools, etc., it needs to be standardized. Th...

• 2024-12-02

After buying high-quality jammers, many users found that the equipment was not broken, but the use effect was poor. According to the survey, 90% of the people use the equipment incorrectly, which is also the main reason for the poor effect of the equipment. Today we will tell you what to pay attenti...