Cell Phone Number Blocker For Android Reduces External Interference
The most unique function of the mobile phone signal shielding system can realize the adjustment of the transmission power of each frequency band module of each mobile phone signal shield. This function is very necessary in some places, such as prison units, school units, etc., if If there is a residential area around a unit, or in a place where personnel activities are frequent, multiple Cell Phone Number Blocker For Android s are used in the unit, which will have more or less impact on the surrounding residents. In this case, the function of adjusting the transmission power of each module (adjusting the shielding range) is particularly important. It can reduce the transmission power of the shielding module for the mobile phone signal jammer near the residential area, and reduce the interference of the jammer to the outside world. To the minimum, to ensure that the signal in the venue can be effectively shielded, and the interference to the outside world is minimized, killing two birds with one stone.
You will find that the signal from the phone is unrecognizable, so you will refuse to communicate with the phone. In the early days, Cell Phone Number Blocker For Android only blocked one set of frequencies, like 2G, while sophisticated jammers can block several types of networks simultaneously, like 2-3-4-5G. So how is this multi-network interference achieved? Actually simple. That is to say, the interference bands corresponding to these three signals are repeated in a cyclic manner, covering these three interference bands at the same time. The interval of this cycle is so small that the mobile phone has no chance to speak, and can only sit and do it quietly. a brick. Covering 2/3/4/5G, what about bluetooth and wifi? It doesn't matter, it can be done easily. Cell Phone Jammer Evolved again, adding the frequency bands of bluetooth and wifi to the scanning range, so that several common communication methods in the society are completely covered. Many people do not understand the difference between Bluetooth, Wi-Fi and mobile data. They seem to be wireless communication technologies. In fact, the main difference between them is the frequency band. In mobile communication technology, 2G mainly works in the 900-1700MHz band, 3G works in the 1900-2100MHz band, 4G works in the 2300-2500MHz band, and 5G works in the 3400-3600MHz band. Bluetooth and WiFi work at 2.4GHz. In this way, the R&D engineers of Dazhan Electronics can accurately identify the communication frequency band and develop a mobile phone signal blocker with the same frequency band, so as to achieve the purpose of completely blocking mobile phone wireless signals.