Blocking of signal using signal jammer

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Author: 
Saurabh Singh, KrishnaYadav, Rishabh singh, Akash Soni, Harjeet Matharuf and Pranay Rao
Subject Area: 
Physical Sciences and Engineering
Abstract: 

This paper proposes and aims at designing a GSM jammer. GSM jammer is a device that transmit signal on the same frequency at which the GSM system operates. The mobile phones in the area where the jammer is located are disabled. This project is mainly intended to prevent the usage of mobile phones in places inside its coverage without interfering with the communication channels outside its range, thus providing a cheap and reliable method for blocking mobile communication in the required restricted areas only. The circuits that use for GSM jammer are Tuning Circuit, Voltage Controlled Oscillator, RF Amplifier and Antenna form the Jammer circuit. All the circuit output are constructed and observed using the Electronic workbench. The simulation result and practical result were studied and they were found to be approbatory equal. The gain of the project is that we are able to block communication coming into and going out from a GSM phone operating on the 890MHz to 960MHz frequency band.

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