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Mobile phone jammers often appear in secret places

Perfectjammer 2021-04-13

Mobile phone jammers can shield the 2G, 3G, 4G, 2.4G WiFi signals of mobile phones. The test room signal jammer can not only shield mobile phone text messages, but also cannot even make Internet calls. The signal jammer can be used in a wide range of applications. Examination rooms, corporate conference rooms, gas stations, as well as prisons, troops, government agencies and other secret-related places.

What should I pay attention to when purchasing a mobile cell phone jammer? Mobile phone signal jammers used in examination rooms generally have more appearances with built-in antennas, which can play a beautiful role, and secondly, they will not create psychological pressure on candidates in the examination room. It is the most widely used instrument in standardized examination rooms and is controlled by machines. It is carried out under the standard safety of 4W per channel. The low power has no effect on the mobile phone at all.

The mobile phone signal jammer used in the exam room is relatively low in use, the power of the equipment used is relatively small, and there are reasons such as cost budget, so the mobile phone jammer used in the exam room generally costs about 500-1500. If you need to shield 5G If signaled, the price will be higher. If the cell phone jammer used in the conference room shields a large range of the conference room, the power of the cell phone jammer used should naturally be a little larger, and you can actually recommend a suitable product according to the requirements.

The mobile phone jammer scans from the low frequency band of the forward channel (the channel from the base station to the mobile phone) to the high frequency band at a certain speed during the working process, and forms interference when the mobile phone receives the message signal, so that the mobile phone cannot detect the transmission from the base station As a result, the connection with the base station cannot be established, and there is no signal and no service.

There are many companies that produce and sell mobile phone jammers on the market, and the quality and price are also uneven. It is recommended that when purchasing, it is recommended that you actually test the mobile phone jammers according to the area of ​​use and specific needs. By comparison, don't blindly pursue low prices, but choose a mobile phone signal jammer that suits you.