Recently, the reporter saw a special device called "cell phone signal killer" from some communication equipment stores on the Internet-cell phone jammer sold well. The jammer can make all mobile phones within a radius of 20-40 meters become "dumb" and cannot receive any signals. Is the use of this equipment legal and does it infringe people's normal communication rights? Due to the policy gap, the relevant departments are also helpless.
According to a report by the Evening News, a dealer in Tianjin introduced that this "mobile phone killer" is actually a mobile phone signal jammer device. After installation, in a 20-40 meter radius space with it as the center of the sphere, all The mobile phone signal will be destroyed by the interference signal it sends, and there is targeted interference to the four frequency bands 800, 900, 1800, and 1900 covered by the current domestic mobile phones, that is, the "PHS" of China Mobile, China Unicom or China Telecom. Will sleep in the coverage area without exception. However, the merchant explained to reporters that once the mobile phone leaves the range, the signal will be restored. The "mobile phone jammer" will not really damage the mobile phone, and it will not affect the TV, radio and wireless network signals.
It is understood that the current market price of this type of "mobile phone jammer" is about 5,000 yuan, and it is said that many units have used it. At present, the largest user groups are gas stations, theaters, and libraries. Since these areas are not suitable for using mobile phones, the forced shutdown seems abrupt, so they simply use mobile phone jammers to destroy the signal and make the mobile phone "dumb".
Although this kind of mobile phone jammer will have a certain inhibitory effect on the increasingly serious mobile phone pollution in the current society, it is based on the premise of destroying telecommunications signals. To some extent, it has disrupted the regional wireless communication order. Being used by some lawbreakers will obviously have a counterproductive effect. This machine seller told the reporter that it is definitely legal to sell and use this kind of machine. However, the reporter learned from the Shanghai Municipal Communications Administration that the relevant departments have not yet been able to determine the legality of this mobile phone jammer. Relevant people have called for the monopoly of machines of this kind of "double-edged sword" nature to ensure that they are used in legal ways.
