This Cellular Blocker is a jammer device that transmits low power radio signals, which cut-off communications between cellular handsets and cellular base-stations in a regulated area.
The jamming effect can be digitally controlled and regulated to form a "quiet" zones in confined places.
The Blocker does not interfere with any communications other than cellular within the "quiet" zone and does not interfere with cellular communications outside the regulated area.
The low power unit contains one or two modules, each of them covers a single frequency band (800/900/1800/1900). The unit is microprocessor controlled and has digital power control, thereby enabling accurate calibration of transmission power.
Configurable for coverage of all types of cellular systems including analog (AMPS, TACS, NMT) and digital (TDMA, CDMA, GSM, PCS). Up to 3 system per Blocker per your choice.
Each module has an internal antenna and maximum output power.
We include with each unit a rechargeable battery pack, external antenna, reflector mounting panel and remote control.
This is a complete professional unit - all included.
* Each unit is Capable of blocking up to 3 cellular system (freequencies) .
* * Except for Law Enforcement, this item is not for sale in the United States.