In the mobile phone signal jammer, the uplink and downlink signals must be amplified by the low noise amplifier, which has good weak signal amplification ability. Power amplifiers are an important part of cell phone jammer. The main function of the power amplifier is to remove the base station that needs to be forwarded. Under normal circumstances, the circuit of the civil mobile phone signal jammer can be removed. The monitoring unit prevents equipment problems in time and interferes with mobile phone signals. The equipment status is summarized to the network management center, and the monitoring unit can detect the working status of the internal components of the mobile phone signal jammer, parameter changes and set the main parameters. The power supply is the working energy of the cell phone jammer. It can be battery powered to ensure cell phone signal jammers work properly in the event of a power outage. Solar or wind power can be used in relatively remote mountainous areas.
In foreign countries, their mobile phone signal strength is good, but because many frequencies belong to 2G, 3G, and 4G, the higher the high frequency, the shorter the transmission distance, the lower the penetration rate, and there will be many signal blind spots. In China, the signal coverage of mobile phone operators (China Mobile, China Unicom, China Telecom) basically reaches every corner of urban and rural areas. However, with the rapid population growth, land resources are becoming increasingly scarce, some newly built buildings are getting taller and the housing structure is becoming more and more complex. The houses are high-rise buildings, so they are generally made of reinforced concrete. The absorption of the signal by this reinforced concrete wall is amazing. Its absorption of the signal is similar to that of a mobile phone signal jammer, which directly interrupts the transmission of the signal.