As mobile phones bring convenience to people's daily lives, it is inevitable that some people will maliciously use their phones to engage in some bad behavior. For example, in the past, cheating in exams was mainly done by taking notes and carrying notes into the exam room, but now it is possible to...
The communication of mobile phones is transmitted through the signals of base stations. The current coverage of Mobile phone signal is relatively high. The three major state-owned operators are sparing no effort to build infrastructure such as base stations to enhance the coverage of Mobile phone si...
When a mobile phone is used for external calls, it converts all operations on the phone into data and 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 trans...
Frequency jammers can block signals from various electronic communication products and have been explored in many places. And the most widely used place is that it can often be seen appearing during school exams. After the changes of the times, the speed of information dissemination nowadays is very...
In the process of formulating standardized examination halls, the vast majority of customers choose to install some signal shielding machinery projects, but there are always some customers who may find that the shielding effect is not ideal after the signal interference machine is turned on and work...
Technology has brought convenience to people, gradually increasing the number of mobile phone users, and the increase in mobile phones has driven the signal blocking industry. Nowadays, there are more or less confidential places that prohibit making phone calls, sending messages, and accessing the i...
The emergence of mobile phone interference devices is mainly used to prevent the leakage of essential information during the operation of computers, network servers, and communication electronic devices, and to install such devices in school exam rooms to prevent cheating, among others. Of course, t...
After purchasing a signal shielding device and using it for a long time, I always feel that the shielding effect is not very good and the range is not too large, which is different from before. Is there a way to solve this situation? In fact, the shielding effect of the signal jammer at this time is...
In order to ensure the fairness of each candidate, a few weeks before the college entrance examination, mobile phone jammers will be installed at the test center to prevent students from cheating through high-tech means, and to ensure the fairness of each candidate as much as possible. The mobile ph...
Signal interference devices have been around for some time, and the effectiveness of the devices varies under different circumstances. Therefore, it is necessary to adjust and test different models of devices according to different environments in order to fully utilize their functions and leverage ...
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