High Tech 20 Watt VHF / UHF / GSM Cell Phone Signal Jammer For Schools 2020/03/13
   VHF /UHF/ GSM /WIFI/ LTE /4G  radio frequency  jammer with 14 antennas for police​   Description:   This full spectrum signal jammer is with 14 channels. RF output power of each channel   is no less than 1 watt, effective shielding any cheating signal.And one important thing is :the antenna is hidden inside,cut all the signals but not easy be found where the jammer is.   The jammer adopts DC 19 power supply. It is equipped with a precision voltage regulator circuit, even if the voltage fluctuation is changeable, it also won't affect the normal work .   Host cooling structure of shell is by professional design. It can endure high temperature environment, by transferring heat quickly to the heat exchange surface , avoid heat  local  accumulation.   Two mute fans instant remove the power amplifier heat, to ensure the stability of the host long continuous operation.   it is suitable for use in school examination rooms, prisons, clubhouses and government departments. epartments.   Specifications:   Output port Frequency Average out- putting power Channel out- putting power 150MHZ 135-200 MHz 30dBm 6dBm/30KHz(min) 250MHZ 200-300 MHz 30dBm 1dBm/30KHz(min) 350MHZ 300-400 MHz 30dBm 1dBm/30KHz(min) 450MHZ 400-500 MHz 29dBm -2dBm/30KHz(min) 550MHZ 500-600 MHz 29dBm -3dBm/30KHz(min) 650MHZ 600-700 MHz 29dBm 3dBm/30KHz(min) 750MHZ 700-800 MHz 29dBm -2dBm/30KHz(min) CDMA 851-894 MHZ 30dBm 3dBm/30KHz(min) GSM 925-960 MHZ 30dBm 3dBm/30KHz(min) DCS 1805-1990 MHZ 30dBm 3dBm/30KHz(min) 3G 2110-2170 MHZ 30dBm 3dBm/30KHz(min) WIMAX 2300-2400 MHZ 30dBm 3dBm/30KHz(min) WIFI 2400-2500 MHZ 30dBm 3dBm/30KHz(min) 4G 2620-2690 MHZ 30dBm 3dBm/30KHz(min) Power supply: AC adapter   (AC220V-DC19V)    Weight :3.5kg Semidiameter of interception:2m-50m(depend on site signal strength and environment condition) Working Hours:Continuously more  than 24hours  Power consumption :80watts Humidity: 30%-95%                   Running Temperature: -20 to +55 Celsius Degree       Competitive Advantage:   Design of soft-start circuit, this function can maintain the stable operation condition, avoid mechanical switch to produce lighter phenomenon. with good cooling system, can operate for long time. It is a high-tech product made by our company .it adopts  foreign advanced technologyand imported components to ensure the quantity and stability. Effectively making subsections of frequency spectrums, just interfering downlink and causing no interception of base station  Perfect Alarm System, fully protected circuit in case of disconnection of antennas.   this jammer is with 14 bands ,can block all mobile signal and radio signal . the antenna could be designed inside or expose to the air!    Applications: 1. Conference room, auditoriums, law court, library, exam room, school, cinema, theater, museum,                 hospital etc. 2. Places where using mobile phones is prohibited such as Service Station, Security Services, Military           Units, Border Patrol and Drug Enforcement, Customs, etc.    

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High Tech 20 Watt VHF / UHF / GSM Cell Phone Signal Jammer For Schools