How does a cell phone signal jammer work? How does it block signals?
During normal communication, a cell phone converts all of its operations into data, which is then transmitted via electromagnetic waves. These waves establish a connection between the cell phone and the signal base station within a specific frequency range. Data is converted and transmitted using a specific baud rate and modulation method.
However, the coverage of a signal base station is limited, and if you happen to be at the edge of its coverage, you may experience a weakening of the signal strength.
The working principle of a cell phone signal jammer is to disrupt the connection between the electromagnetic waves emitted by the cell phone and the signal base station, effectively interrupting the communication between them.
The jammer emits random static electricity or noise over a wide frequency range, preventing devices near the jammer from establishing a connection with the base station. This interference can be likened to the noise generated by a sports car engine, which can interrupt a phone call. The local noise is strong enough to prevent devices from connecting normally, effectively blocking the normal operation of the cell phone signal.
In addition, the electromagnetic interference signal emitted by the signal jammer shares a carrier frequency with the base station signal, causing the cell phone to be interfered with and garbled when receiving the signal, and unable to distinguish between the normal data and the interference signal sent by the base station, thereby effectively blocking the normal operation of the cell phone signal.
