THE DESIGN AND CONSTRUCTION OF MINI RADIO BROADCAST TRANSMITTER AND AUDIO CONSOLE USING FREQUENCY MODULATION (FM) WITH POWER RATING OF 1 WATT
ABSTRACT
The early transmitter for radio broadcasting is so big and bulky that they do occupy numerous spaces. The circuitries are mainly designed with valves, which are big in sizes.
With the advent of semiconductor materials such as transistors electronic equipment are now becoming miniaturized such that small transmitters are now becoming handy and compact.
In line with this we choose to design a complete radio broadcasting equipment tat is compact and existence of semiconductor materials.
The system units are of two categories namely: audio console for the processing and mixing of musicals is basically a condenser microphone.
The transmitter unit is where the center frequency is provided. All these were designed to be in compact and small manner. This project is aimed at serving a community using a small and compact radio broadcasting equipment with a power watt of 1 watt a community of 1 kilometer in radius should be covered comfortable and the audio production very clear unlike the common noisy FM microphone project.
TABLE OF CONTENT
CHAPTER 1 TRANSMITTER FUNDAMENTAL AND TYPES OF MODULATION
1.1 Transmitters fundamental
1.2 Modulations (analog and digital)
1.3 Amplitude modulation
1.4 Frequency modulation
1.5 Method of fm
1.6 Modulation overview
1.61 Basic reactance modulator
1.62 Theory of reactance modulator
1.70 Types of reactance modulator
1.7.1 Varacto diode modulator
CHAPTER 2 AMPLIFIER EXPLANATIONS
2.10 Amplifier explanations
2.20 Class of amplifier
2.21 Class of amplifier
2.22 Class B amplifier
2.23 Class AB amplifier
2.24 Class c amplifier
2.30 Oscillators
2.31 Types of oscillators
