Cell Phone Jammers Weak Signals

Now our mobile phone communicates with the base station through the uplink frequency, and then transmits the signal to the mobile switching center to realize the call. In the standby state, the mobile phone communicates with the base station through the broadcast control channel. Once there is a call request, it will be allocated to the mobile phone service channel according to the specific situation of the channel near the terminal according to the request.

Let the mobile phone jump to the service channel to realize the call and data transmission. At the same time, 4G wireless communication must ensure a sufficient signal-to-noise ratio to effectively receive and complete the communication. Then according to the above working principle, we can conclude that 4G mobile cell phone jammer is generally composed of power supply, electronic sampling control unit, segmented high frequency module unit, power amplifier unit, transmitting antenna unit and other parts. The sampled signal generated by the signal generator passes through the inverter, enters the oscillator, and is modulated to the working frequency band of mobile communication.

Nowadays, mobile phones are all digital signals, and digital signals have strong anti-interference ability. Typically, analog signal techniques are used to interfere with digital signals. Therefore, a digital signal must be used to interfere with the digital signal. Interference effects are very different. The mobile phone signal jammer device using digital jamming technology has lower power and higher efficiency than the shielding device adopting analog signal jamming technology. The synthesis, attenuation and reflection analysis of indoor cell phone signals and interfering signals is very complex. Before shielding, the strength and quality of mobile phone signals in the local space have a great impact on shielding. Different phones have different effects. Generally speaking, mobile phones with strong ability to receive weak signals may not have good anti-interference effect.