The most complex and crowded 1800MHz band in cell phone jammers

Dojammer 2022-07-19

The cell phone signal jammer is to complete the signal shielding for all 2G, 3G, 4G, 5G and other standards, which determines that a standard 5G mobile phone signal jammer, the frequency range covered by the shielded signal from 700MHz to 4960MHz needs to be included. Of course, in such a wide frequency bandwidth, the mobile phone signal jammer does not need seamless coverage during the implementation of signal shielding, but only needs to be able to cover the frequency band that works for mobile phones. Among all the working frequencies of mobile phones, there is one frequency band that is the most special. Its bandwidth is only 115MHz, but it concentrates 2G, 3G, 4G and other mobile phones of different standards from China Mobile, China Unicom, and China Telecom. Signal.

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This most special frequency band is the 1800MHz frequency band. Its frequency range is 1805-1920MHz, and the mobile phone signal jammer is also in line with this frequency range for the 1800MHz frequency band coverage. According to the latest planning standards of the Ministry of Industry and Information Technology, 1805-1830MHz belongs to China Mobile's 2G frequency band, 1830-1860MHz belongs to China Unicom's 3G and 4G frequency bands, 1860-1880MHz belongs to China Telecom's 3G and 4G frequency bands, and 1885-1920MHz belongs to China Telecom's 3G and 4G frequency bands. For China Mobile's 4G or 5G frequency band, each communication operator determines whether to deploy 3G or 4G base station signals according to their own needs in the actual operation process.

We can see that the 1800MHz frequency band is indeed the most complex and crowded frequency band, and if the mobile phone signal jammer wants to achieve an ideal signal shielding effect, it must pay attention to and strengthen the power of the shielded signal for the 1800MHz band, and also need to do a good job of More reasonable division of shielding modules. Generally speaking, in the current mainstream mobile phone signal jammer, in the frequency band division scheme of the shielding module, the preferred method is divided into two: 1805-1880MHz and 1880-1920MHz. But this is still not the best solution. If you want to pursue better shielding effect, the most ideal way to divide the mobile phone signal jammer in the frequency band of 1800MHz should be divided into three sections, namely: 1805-1830MHz, 1830-1880MHz, 1880-1920MHz.


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