DESIGN A~JD CONSTRUCTION OF A MOBILE PHONE SIGNAL JAMMER

Abstract

Signal jammer is an electronic device that jams the frequency of a transmitting d~vice. Mobile phone signal jammer interferes with the communication frequency within a specified radius deJ.';!nding on the strength· of the signal jammer. This is achieved by generating and trans~nitting radio signal of the same fi"equency as the base station (BS) of the mobile phone and at a higher power so as to collide and cancels out the mobile phone signal. The method employed in realizing this project is made up of discrete components, resistor, capacitor, inductor and transistor to generate the required frequency (noise) and then amplifies the frequency generated to range of 800 M}iZ to 1.4 OHZ in order to match the frequency of the mobile phone being transmitted by the base station (BS). Jamming of a mobile signal is successful, when a mobile phone within the area where the jamming device is situated, is disable. This was confumed by to be efficient in jamming MTN, GLO, AIRTEL, ETISALAT and frequencies. Thereby allowing no call to go through. ,