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The site base station is very close. Does the mobile Signal Jammer still work?

The site base station is very close. Does the mobile Signal Jammer still work?

  • 2022-06-01

Have you ever encountered such a problem, that is, in a place where mobile phones are forbidden to be carried and used, a mobile phone signal jammer needs to be installed, but the base station is about 100 meters away. Can the jammer still have interference effect in such a scene?

In this case, it can basically be determined that the examination room cannot interfere with mobile phone signals through normal channels. The distance between the base station and the examination room is too close. The signal from the base station to the examination room is very strong. The low-power mobile phone signal jammer is basically ineffective in this scene. Even if a high-power mobile phone signal jammer is used, the interference range is limited, and it is unlikely to configure too many high-power machines. After all, the higher the transmission power, the higher the equipment cost.

The reason why the jammer can interfere with the mobile phone signal is that the signal transmitted by the jammer and the mobile phone signal transmitted by the base station are white noise signals in the same frequency band, which can also be called interference signals. Within the coverage of the jammer, the mobile phone signal strength is not as strong as the interference signal, so the mobile phone can not recognize the signal of the base station, so the mobile phone can not connect to the base station and can not get the service of the base station, The phone will display the status of no signal or limited service.

Is there any way to interfere with mobile phone signals? Try to coordinate with the operator of the BTS to adjust the transmit power of the BTS, or adjust the direction of the antenna on the BTS so that the main lobe of the antenna does not face the use site. This practice is to reduce the signal strength in the use site, so as to play the real role of the mobile phone signal jammer. Normally, the processing can only be coordinated from the perspective of the base station. The purpose of adjusting the base station is to reduce the strength of the mobile phone signal on site. At this time, the mobile phone signal jammer can be used to meet the purpose of interfering with the mobile phone signal.

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