Cell phone signal Jamming 50 Meters - why can't prisons jam cell phones

Manpack Vehicular Configuration Jammer for GSM/2g/3G/4glte/GPS/Lojack Blocker for Anti-Terror Units, Bomb Squads, VIP Protection  Manpack Jammer /Blocker Vodasafe MP6A   Brief Description： Vodasafe MP6A is the Man Pack Jammer can be carried by a person in areas where remote controlled improvised explosive devices are suspected and is designed for protection of soldiers and law enforcement foot patrols against RF radio controlled bombs, or against terrorists indicating their exact location via radio transmission. Features: *lightweight backpack that can be carried through difficult terrain without burden *Portable jammer built in a backpack Configuration *Covers wideband frequency range includes VHF/UHF radio *Electronic blanket jamming of control channels of explosive devices *Provides a minimum protective range of 40m *Can be used in manpack or vehicular configuration *Effective in use for protection of mobile column of personnel on foot or moving in vehicles Applications: Anti-terror units, bomb squads, VIP protection, protection of convoys, Military forces, SWAT teams,  police forces, anti-drug units, riot control units Specification: Total Output Power:30 Watt Output power Adjustable could adjust the jamming range Cover Radius: 10-60m(under Signal level ≤-85dBm)@according to the signal density mobile network Jamming type: Sweep Jamming Antenna Type: 3dBi external omni-directional Power Supply: AC adapter (50 to 60Hz/100 to 240V AC –DC27V) Battery 27V20Ah Working Time：Not-stop Working(Build-in AC power DC27V and Battery 27V20Ah working 2 hours) Electric Filed (SAR): Compatible with ICNIRP Standards (Human safe) Operating Temp:-20 to +50℃ Storage Temp:-40 to +60℃ Humidity: 5%-80% Product Dimension(LXWXH): 310 x 205x 120mm not include antennas Weight: appr.13kg ( for 3dbi OMNI antennas) Order Information:   Vodasafe MP6A for CDMA/GSM/3G2100MHz/4GLTE Cellphone/VHF/UHF Radio America Type frequency for  United States, Canada, Mexico ,S. America. 1.2GGSM/CDMA850MHz:850-894MHz;5W 2.2GGSM1900MHz:1920-1990MHz;5W (2GGSM/CDMA/PCS1900MHz) 3.4GLTE700MHz:700-800MHz;5W 4.3G2100MHz:2100-2170MHz;5W(3GUMTS/WCDMA/TD-SCDMA/CDMA) 5. VHF Radio:135-175MHz; 5W 6. UHF Radio:400-470MHz;5W Total Output Power: 30W We could supply customized service by your detail requirements about frequencies setting.   Optional Frequencies： 1.Lojack:173.03MHz 2.CDMA450MHz:430-450MHz/460-470MHz; 3.GPS/GLONASS/GALILEO:L1 L2 L3 L4 L5; 4.Wireless Camera: 1.2G ,2.4G,5.8G; 5.Car remote control: 433MHz/315MHz/868MHz; 6.Walkie-Talkie:VHF,UHF; 7. SAT Satellite Phones:1520-1670MHz;   Package contents: 1pcs Signal Jammer 1pcs Battery charger 1pcs manpack bag 6pcs Antenna      

cell phone signal Jamming 50 Meters

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