Diseño e implementación de un prototipo inhibidor de señal de telefonía móvil en el laboratorio de la FIE.

Abstract

This work is about the design and implementation of a prototype inhibitor mobile phone signal. It is practical case in the laboratory of Computer Science and Electronics Faculty of the Polytechnic School of Chimborazo. The prototype developed is known as a jammer which aims to block signals in frequency of cell phone. For the development of functional prototype, the comparative method for the choice of electronic materials such as voltage controlled generators triangular wave, resistors, capacitors, potentiometers, oscillators were used. Through analysis a classification that helped us choose was made correctly appropriate electronic materials. In addition the respective simulations of the device were done in the Proteus 8 software to the feeding stage, regulation and adaptation of the triangular signal. For phase radio frequency Ansoft 3.5 software was used. This helped us to obtain approximations in energy consumption, and the choice of our transmission line for radio frequency section. Excellent results were obtained regarding the coverage area with the device to check the performance and coverage area of the prototype. Four cell teams, two for Claro operator and two for Movistar operated were used thus obtaining a range of 2.50m to Claro with 100% lock in both handsets tested and a range of 1.50m to Movistar with 100% lock in the two tested equipment. It is concluded that the device operates successfully for both operator as cellular signal interfered entirely on cellular equipment tested, so interrupting sending and receiving calls and text messages. It is advisable to take into account the sensitivity of cellular devices and the location of the base stations of cellular operators, as this will influence the coverage area and the time it takes the device to lose which is estimated at 40sec cellular signal.