Cell phone jammers can not only interfere with mobile phone signals, but also interfere with radio signals in other frequency bands by adding interference modules of different bands. Everyone knows that radio signals can achieve different functions according to the different frequencies used, including GPS, WiFi, etc. Because of the differences in radio technology and standards, as well as the differences in signal strength emitted by the signal transmitter of the radio signal, the interference range of cell phone jammers will be different when interfering with these radio signals.
At present, the signal frequency that can be used by domestic mobile phones ranges from 700M to about 6000M, including signals from mobile phone operators, WiFi signals, GPS signals, etc. According to the different types of signals, they are divided into various uses, and the functions achieved are also different.
The interference range of mobile phone jammers for mobile phone signals of different frequency bands is also different. In the same test environment, the mobile phone signal strength of each frequency band cannot be the same. However, mobile phones can receive mobile phone signals of multiple frequency bands at the same time according to different operators to ensure that the mobile phone can be used normally. At this time, it is necessary to test the frequency band of the strongest mobile phone signal on the scene, and then adjust the cell phone jammer or adjust the signal source, and then cover the mobile phone frequency band with the strongest signal on the scene. Then, it can be basically determined that the mobile phone jammer can interfere with the ability of all mobile phone signals on the scene.
In certain cases, the above solutions are relatively expensive. In order to save costs and pursue higher cost-effectiveness, the following solutions can be considered
Test the relatively strong frequency bands on the scene, and then equip high-power interference modules to carry out targeted interference on these strong signal frequency bands, thereby reducing costs and achieving the purpose of interference effect.
The Wall