What is the function of the mobile phone signal Jammer device?

The main function of the Cell Phone Jammer is to interfere with the communication between the mobile phone and the base station. The mobile phone communicates with the base station through the uplink frequency, and the base station transmits the signal to the mobile service exchange center to realize the call. In the standby state, the mobile phone uses the broadcast control channel to communicate with the base station. When a call is initiated, a specific mobile phone service channel is allocated to the mobile phone according to the channel conditions near the terminal, so that the mobile phone switches to the service channel for calls and data transmission. In order to effectively receive and complete communication in 4G wireless communication, a sufficient signal-to-noise ratio is required.

Based on the above working principle, the mobile phone 4G signal jammer is usually composed of a power supply, an electronic scanning control unit, a segmented RF module unit, an amplifier unit, a transmitting antenna unit, etc. The signal generator generates a scanning signal, passes through an inverter, enters an oscillator, modulates to the mobile communication working frequency band, and then amplifies it through a power amplifier, and the power is controlled by a voltage regulator. The amplified sweep frequency signal is transmitted into the air in the form of radio waves. The mobile phone signal jammer uses the sweep frequency signal to introduce garbled interference to the mobile phone’s received information signal, increase the ratio of the noise signal to the device threshold, and make the mobile phone unable to receive the normal 4G data sent by the base station and unable to establish a normal connection with the base station, resulting in the display of no signal and no service system when the mobile phone searches for the network, effectively achieving the shielding effect.

Best Selling Signal Jammers