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    WALL CELL PHONE JAMMER Model No.:JAM30 This pating WALL CELL PHONE JAMMER is design for long time working with power supply, effectively making subsections. Just interfering downlink and no interception on the base station,with remte controller, adjustable outpower. Specifications: TX-Frequency:      CDMA: 870-880MHz      GSM: 935-960MHz      DCS: 1805-1850MHz      3G: 2110-2170MHz      PCS: 1930MHz Antenna: 4PCS Omnidirectional antennas Control: Wireless remote control ( turn on and turn off ) Application Area: Theatres, Libraries, Museums, Restaurants, Places of Worship, Country Clubs, Hospitals, Meeting room, etc... Working Hours: Long time work continuously without stop Working temperature -40 ~ +55 degree centigrade Relative Humidity: 20%-95% Semidiameter of interception: 2-60 meters Output power: 12.5W Energy Consumption: 45W Power Supply: AC110-220V?10% / DC5V 45-55Hz Gross wight: 2.5KG Inner-packing: 47.3*33.3*3.5cm 1PCS/box Features: Show the working power on the shell with green lights Mini size medium power CELL PHONE JAMMER Low weight and nice texture and color To block wireless phone communication links within an effective area No transmissions or receptions of cellphone call in coverage area All specified frequency bands will be blocked simultaneously No harm to human body Maintain the wireless communication must have enough SNR, so that can ensure the effective receiving of signal and finish communication. this jammer for mobile communication signal can destroy signal receiving condition for cell phone and cut off the connectioin between celll phone and base station by producing intercepting signal that can receive the same frequency with cell phone. The power of jammer is limited in a certain range. The interception semidiameter of non hurdle space is decided by via attenuation and signal level of receiving base station. Covering semidiameter can be known by calculating out, outputting channel power, signal level of base station and gain of covering antenna.

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