The mobile phone shielding instrument can be known from the name. It is a special instrument for signal shielding of mobile phone signals. In the field of signal shielding, the concept of "shielding" is basically equivalent to "interference", because the signal shielding usually referred to is actually the way of signal interference, so that the equipment with normal communication cannot work normally on the original frequency band. Therefore, the frequency jammer can also be understood, it is an instrument that interferes with some specific frequency bands. Then you can know: the mobile phone shielding device and the frequency jamming device belong to the same type of equipment, and the basic working principle is the same. But there is a certain difference between the two, what is the difference?

The difference between the two is that the mobile phone shielding device specifically refers to the shielding of mobile phone signals, which is aimed at the current 2G, 3G, 4G, 5G signals of various operators, and also includes the WIFI and Bluetooth signals that come with the mobile phone. The frequency referred to by the frequency jammer is relatively large, and the coverage of the frequency usually refers to all common wireless communication signals from 20MHz to 6000MHz. In this frequency range, the mobile phone signal is only a part of it. In addition to mobile phones, it also includes at least GPS navigation, remote control signals, walkie-talkie signals, wireless image transmission signals, drone flight control signals, and more.

Therefore, the final conclusion is: the frequency jammer is a broad name, and the mobile phone shielding device is a specific and targeted name. The frequency jammer includes a mobile phone shielding device, but the working types of the two are the same, and they are both used for signal shielding.