GSM 900 Mobile Jammer

Mohd Zaidi, Husin (2010) GSM 900 Mobile Jammer. Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

The report that produce by the student by their own initiative and own creativity to make sure the report are perfect and complete with all the result of the project. This report contents all the study by student to make sure the project finish on time. All the content is come from the design of the project. The content form the another engineering book also allowed to which are use to finish the project. This project are design a GSM 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. 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 are 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. We are also able to reach 8- meter effective blocking radius and keep the cost less.

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