The principle of mobile phone signal jammer
Many people are more interested in how to block mobile phone signals. Today, Lingxin Technology will introduce to you the principle of radio communication and the principle of mobile phone signal blocker.
The principle of radio communication means that within a certain frequency range, the mobile phone segment and the base station are connected by radio, and the data, voice, text, image and other electrical signals that need to be transmitted are modulated on radio waves and transmitted to each other through space or ground. method of communication.
When the signal jammer is working, it sends out interference signals to interfere with the channel frequency band of the base station. The interference signal increases the bit error rate of the channel and reduces the signal-to-noise ratio of the channel, so that the mobile phone cannot decode the information sent by the base station normally. It makes the mobile phone unable to establish a normal connection with the base station. When the mobile phone cannot determine its own service area after several attempts, the mobile phone will display no signal, search for the network, not in the service area, etc. This is the working principle of the mobile phone signal jammer.
For example, if you are chatting with a friend, someone is talking loudly next to you, so that the two of you cannot hear the specific content of each other's speech normally.
In general, the principle of mobile phone signal jammers is like this, sending out interference signals, seriously damaging the local magnetic field, causing the signals to fail to propagate normally, and causing the cell phone to fail to receive the signals from the base station normally.
