It is not difficult to imagine that when you are watching a scene in the theater, the phone will ring suddenly. You must be in a bad mood. Or while studying in the library. Suddenly, someone nearby was talking loudly on the phone. Presumably you really want to be quiet. Therefore, it can play a role when the equipment interferes. All you need to do is turn on the device and it will be quiet.
A gsm jammer is a device that usually blocks signal transmission or reception by producing some form of interference in the same frequency range used by the mobile phone. As a result, cellular phone users will lose the signal or suffer a significant loss in signal quality.
It is made to block signals in environments where mobile phone activity is not expected (such as theaters, churches, classrooms, and operating rooms).
GSM is a variant of TDMA and is the most widely used technology among the three digital wireless technologies, TDMA, CDMA and GSM. The system works at 900 MHz and 1800 MHz.
When selecting a frequency jammer device, it is important to ensure that the interference output of the device has been designed to interfere with several different transmission types used by wireless network service providers. If the device only interrupts a limited number of transmission types, the GSM signal scrambler may not function as expected on the street. In order to better ensure the best performance, it is strongly recommended to use a frequency interrupter to interrupt CDMA, TDMA and GSM transmissions.