Cell phone jamming in prisons - cell phone jammer Gatineau

cell phone jamming in prisons

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8 antennas 16w 60 meters 4g lte wimax 315mhz/433mhz gps signal blocker,the tracker will be your real time location through a signal frequency transmitted to the control center,the interference of cell phone jammer radius range between 20-30 meters radius on the market at present is the most common interference..