GSM Signal Jammer
GSM is the 2G digital mobile phone specification that dominates most of the world. It determines how the phone communicates with the tower network.
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Mobile phone specifications are enforced worldwide. A total of 14 GSM jammer include preset and static channel assignment bands. The frequency range of each of this band is different, ranging from 380.2 to 1990 Mhz. The 921 Mhz to 1710.1 Mhz frequencies are not allocated to the GSM band but are allocated by the FCC for other obligations. Each of this frequency band also applies separate downlink and downlink frequency ranges within each pre-designated frequency band. Downlink and downlink ranges are differentiated from each other to help minimize potential interference.
CDMA (or Code Division Multiple Access) is often found in the United States and Russia, although GSM is also present in these countries. It also encodes each user’s group conversation through a sequence of pseudo-random numbers, which means that voice data is still protected and filtered so that only those involved in the phone call can receive the data.
