Description
ABSTRACT
This project intended to simplify the description and working principle of FM wireless microphone, which works on a fixed frequency modulation (FM) band.
INTRODUCTION
Electronics deals with current flow and the application therefore current is established by movement of electron-hence electronics. Electrons on their own are constituent of the atom. We shall bargain therefore by considering our need for electronics in every day activities because to has become obvious. As the world grow computerized, we ought to have the knowledge and understanding of electronics for certain reason.
As a matter of fact, our satisfaction these days mostly depend on electronics. These satisfactions may come in different ways. For instance one cam now stay in his house or in motor to communicate with distance person through telephones; one can tune radio or television on station inside his house, to mails. Some information can be transmitted by the aid of microphone. All these and more make life easier and less stressful for us.
The study of electronics is not so simple as may be perceived by people who professionalized in its operation.
It deals with the movements of electrons and electromagnetic wave in short everything that happens in electronics is invisible. “Electronics, according to advanced leaner dictionaries” is the science and technology of electronics phenomena, devices and system, as in radio, Television, tape recorder, compute etc.
Considering the project I am writing now, the radio transmitter. Radio transmitter generates energy at a definite frequency and convey this energy to the transmitting aerial for radiation. To obtain a useful radiated signals, information must be superimposed on the radio waves. In the continuous wave (C.W) transmitters used for radio, telegraphy, the desired information is added by interrupting the radio frequency oscillations in accordance with a telegraphic code. In radio telephone (modulated) transmitters the information is added by modulating either the amplitude or the frequency of the radio frequency carrier wave the speech or music to be transmitted.
TABLE OF CONTENTS
Approval Sheet
Title Page
Dedication
Acknowledgement
Abstract
CHAPTER ONE
1.0 Introduction
1.1 Aim and Objective of Investigation
CHAPTER TWO
2.0 Transmitter
2.1 Ionospheric Propagation
2.2 Modulation
2.3 Needs for Modulation Process
CHAPTER THREE
3.0 Frequency Modulation
3.1 Characteristic of An FM Wave
3.2 Frequency Modulation Detectors
3.3 Method of Generating and Detecting F.M
3.4 Resonance
3.5 Oscillation
CHAPTER FOUR
4.0 The Radio Tuner
CHAPTER FIVE
5.1 Function of Transmitter (With Block Diagram)
5.2 Resistor and Used in the Project
5.3 Capacitors
5.4 Variable
5.5 Transistor
5.6 Aerial
5.7 Microphone
5.8 Power Supply Unit
CHAPTER SIX
6.0 Conclusion
6.1 Background Information
Reference