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What signals can a signal jammer block?

2025-11-21

Signal jammer, also known as signal jammer or signal blocker, is mainly capable of blocking wireless communication signals. These signals include but are not limited to mobile phone signals, wireless network signals, Bluetooth signals, and certain specialized wireless communication signals, such as walkie talkie signals.

The working principle of a signal jammer is to emit interference signals with the same or similar frequency as the target signal, so that the receiving device cannot accurately recognize and receive the original signal, thereby achieving a shielding effect. For example, in mobile communication, the signal jammer emits the same radio frequency signals as the mobile base station. After receiving these interference signals, the mobile phone cannot establish a normal communication connection with the base station, so users cannot make calls, send text messages, or use other mobile communication network-based services.

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What signals can a signal jammer block?

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