Currently, there are many manufacturers of mobile phone signal jammers on the market, but there are few specific introductions to the functions of the jammer. The most important one is the scope of use of the mobile phone jammer, because not all areas and occasions can use the jammer. , if you don’t understand these, you may be suspected of illegal use.
Mobile phone signal jammers are generally directly called jammers, mobile phone jammers, signal jammers, mobile phone signal jammers, mobile phone signal blockers, mobile phone isolators, mobile phone cutoff devices, etc. There are also called mobile communication signal blockers, mobile phone signal jammers, mobile phone jammers, signal jammers, mobile phone blockers, signal blockers, mobile phone signal isolators, signal isolators, mobile phone signal interceptors, and radio signals based on their functions. Jammer etc.
The mobile phone signal jammer uses frequency multiplication, frequency division, frequency hopping filtering and other technologies to analyze the required shielding frequency for the uplink and downlink channels of the mobile phone system. Then a spherical shielding space is customized according to the power of the jammer, and a shielding magnetic field is automatically formed within the specified range, so that mobile phones (including PHS-Xiaolingtong GSM-China Unicom, China Mobile, CDMA-China Telecom) can operate within this spherical shielding space. The mobile phone signal fails. When the cell phone jammer is in working condition, it can disable the signal sending and receiving functions of mobile phones within the specified range, making it impossible to dial out and dial in, thereby achieving the purpose of mandatory ban.
Mobile phone jammers have a wide range of applications and can be used in many places or areas, such as various invigilation examination rooms, prisons, detention centers, drug rehabilitation centers, offices, conference rooms, gas stations, oil depots, churches, hospitals, courts, and military sites , libraries, theaters, factory workshops and other places.
However, it should be noted that in densely populated areas such as schools, it is prohibited to set up radio stations with excessive electromagnetic radiation, and mobile phone signal jammers are not allowed to be used without authorization in residential areas.