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 jammers, mobile phone signal jammers, mobile phone jammers, signal jammers, mobile phone blockers, signal blockers, mobile phone signal isolators, signal isolators, mobile phone signal cutters, 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 be placed in this spherical shielding space. The mobile phone signal fails. When the mobile 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.
jammer, mobile phone jammer, signal jammer, mobile phone signal jammer, mobile phone signal blocker, mobile phone isolator, mobile phone cutter
Cell 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.