Design And Construction Of A Remote Controlled Tri–band Frequency Jammer.

CHAPTER FOUR
PRESENTATION AND ANALYSIS OF RESULT
4.1    Introduction
This chapter gives a detailed insight on the component test, system test and the analysis of the data collected from three different locations around the airport area of Ilorin west local government area, Kwara State, Nigeria.  
4.2    Component Test
All circuit components were tested to ascertain their status and also to compare the actual/measured values with the rated values. In the case of the discrete components like resistors, I used the components with the nearest measured value to the rated values. This was done in other to minimize the deviations from the expected result. Other components include the capacitor, switch, transformer, diodes (rectifier) LED, decade counter, transistor and voltage regulator.  The transistors pins as well as the voltage regulators were confirmed working properly with the help of a digital multimeter. The collector, emitter and base pins were gotten from electronics datasheets.

4.3    System Testing and Integration
This chapter entails an overall system testing of the integrated subsystems. The testing and integration was done to ensure that the design works as expected, since the jammer systems is made of several subunits, a good interface must exist between various input/output units of the subsystems, to ensure a proper handshake between one unit and the other.When the totality of the modules was integrated, the device was created and all modules and sections responded as specified in the design from the power supply unit through the antenna unit.
4.4    Results and discussion
The pictures below show what happened to each Network carrier when the jammer was switched ON/OFF.  It can be clearly seen that when the jammer was switched "ON", the signals on each mobile phones went OFF after some few seconds and when the jammer was switched OFF, the network signals on each Mobile Phones came "ON" again