Mobile Jammer

Abstract

A GSM Jammer or cell phone jammer is a device that transmit signal on the same
frequency at which the GSM system operates, the jamming success when the mobile
phones in the area where the jammer is located are disabled. Communication jamming
devices were first developed and used by military. Where tactical commanders use RF
communications to exercise control of their forces, an enemy has interest in those
communications. This interest comes from the fundamental area of denying the successful
transport of the information from the sender to the receiver. Nowadays the mobile jammer
devices or cell phone jammer software are becoming civilian products rather than
electronic warfare devices, since with the increasing number of the mobile phone users the
need to disable mobile phones in specific places where the ringing of cell phone would be
disruptive has increased. These places include worship places, university lecture rooms,
libraries, concert halls, meeting rooms, and other places where silence is appreciated.