Cell phone signal jammer, as the name suggests, are to block mobile phone signals. For now, mobile phone signal operators are divided into three major operators: Telecom, China Unicom, and China Mobile. In terms of function, mobile phone signals are divided into mobile phone call signals and Internet signals. Signals are divided into mobile phone 2G and 3G signals, and mobile Internet signals are divided into mobile phone 4G signals. For the time being, the mobile phone signal jammers currently in use cannot be used in the 5G era to amplify 5G signals, but the future is also uncertain.
The frequency jammer is actually a miniature wireless repeater. The working principle of the signal jammer is actually to suppress the signal after receiving the signal from the base station, and then amplify the mobile phone signal and transmit it to the base station, playing a two-way amplification role. The signal amplifier has a working frequency, but because 5G currently uses a new frequency band, the existing signal amplifier cannot amplify 5G signals.
The current jammers are based on the frequency band of the existing network, such as 900M, 1800M, 2100M, etc., but because 5G uses a new frequency band, the mobile is 2.6Ghz of 160M and 4.9Ghz of 100M, and China Unicom and China Telecom are 3.5Ghz of 100M, radio and television now seems to be 700M. These are new frequency bands, and existing amplifiers can no longer work properly. The filter is hardware and cannot be upgraded by software, so no jammer on the existing network can interfere with 5G signals. In the future, if the Ministry of Industry and Information Technology approves the three major operators to re-cultivate the 2/3/4G frequency band, the current 5g jammer can also shield 5G signals.
5G will be an era of ultra-dense networking. A large number of small base stations will be introduced indoors. This is a device with its own signal. However, we consider the global coverage of small base stations. Some areas still need mobile phone signal amplifiers to help cover the signal. In the future, 5G small base stations are likely to enter thousands of households, either wirelessly or using the current optical fiber as the uplink. Demand in the 5G era will usher in explosive growth, and mobile phone signal jammers will also develop with the times.