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Why can mobile jammers jam signals?

Why can mobile jammers jam signals?

  • 2022-09-25

When a normal mobile phone is used, it will convert all the operations on the phone into data, and then transmit the data through electromagnetic waves. The electromagnetic wave associates the mobile phone with the signal base station within a certain frequency range, and then completes the data conversion and transmission through a specific baud rate and modulation mode. The networking between the signal base station and the signal base station is realized through optical fiber or microwave circuit. The coverage of signal base stations is limited. If you are just at the edge of the coverage, the signal will weaken.


Mobile jammers are generally connected to the signal base station by intercepting the electromagnetic wave sent by the mobile phone. The communication between the mobile phone and the signal base station is interrupted. Signal jammers emit random static electricity or noise in a wide range of frequencies, making it impossible for devices close to the mobile jammer to connect to the signal base station. For example, one kind of sound covers another, and then the original sound is covered. The interference signal is strong enough to make the device unable to connect normally, effectively blocking the normal operation of the mobile phone signal. The mobile jammer also emits electromagnetic interference signals. The carrier frequency of this signal is the same as that of the base station signal. Therefore, when the mobile phone receives a signal, it cannot detect which signals are interference signals and which data are normal from the base station. This effectively blocks the normal operation of the mobile phone signal.

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