The most widely used mobile phone standard today is our global gsm mobile communication system. GSM standard equipment accounts for more than 80% of the current global market for cellular mobile communication equipment. It is widely used, and perhaps we are more familiar with the use of mobile phones. Yes, calls and text messages rely on mobile phones to provide stable network data types. However, the GSM network is much more than what we know. The gsm module is one of the directions that many electronic manufacturers carefully understand and research. It is used in many areas of life, but we do not understand. Safety control system.
First of all, GSM is the basic network frequency band for mobile phone voice communication and SMS services. As we all know, the improper use of mobile phones is very serious, and the use of mobile phones in public places can cause great noise to others. Can you imagine feeling bored when you are reading quietly and relaxing and suddenly someone calls? I agree. When we need to be quiet, we don't like being interrupted.
GSM network frequency band is very important for the use of electronic equipment. Therefore, in many places where the use of mobile phones is prohibited, interference devices that protect basic mobile phone communications are installed. We usually call them GSM jammer.
