Basic principle of interference: When the mobile phone signal interference scans from the tip to the lowest frequency and drives at a constant speed, the scanning speed will distort the SMS signal received by the mobile phone and form interference, which will cause the mobile phone to fail to correctly detect the transmitted microwave signal from the base station data mobile phone interference The antenna is longer. Mobile phone signal jammers Sometimes, the phone will be far away from the shield and within a certain range of the phone. To disable the mobile phone, do not establish a connection with the above base station, search for mobile phone performance, no signal, no service system, because it can not be used to achieve the purpose, not only can completely restore you to normal use. Mobile cell phone jammer inevitably radiate electromagnetic signals, send and receive data between any cover-up devices, and will never cover up the telephone’s electrical signals. In other words, they will never form a transient signal. Other electrical equipment is always relatively fixed, and mobile phone jammers will not harm the human body harmlessly.