Noise component dominates the signal transmitted hence message cannot be received successfullyĪfter a certain distance due to obstacles. Increase our distance from the source, the signal received is merged with noise and furthermore The signal transmitted has a limited range for its reception, as we A transmitter generates FM waves for various purposes such as communication,īroadcasting a message, etc. The sound, this transmitter transmits the audio signals through the carrier wave by the difference The FM transmitter is a low-power transmitter and it uses FM waves for transmitting 1: BACKGROUNDįM transmitter is an electronic device, which produces frequency-modulated waves with the help One discusses the background of the project, problem description, aims, and objectives. This chapter provides an overview of the project by giving a description of the problem. 2 BASIC HISTORY OF FM RADIO TRANSMITTER.(electromagnetic waves) from the antenna. Such a rapidly reversing current causes him to emit EM waves An electronic circuitĬalled an FM transmitter converts the electrical energy from the battery into high-frequencyĪlternating current (AC). Provides a higher S/N ratio than AM (Amplitude Modulation). Shields signals from unwanted signals, noise, and For example, listening to music forĮntertainment, hearing in distance, or as a tour guide. Power consumption that can be used in a variety of situations. The purpose of this project is to develop a small FM transmitter with low A high voltage spark between two metals was used to create radio This circuit, which assists the antenna and amplifies the electromagnetic signal, essentiallyįunctions as a radio system. Transistor-based circuits are used to generate frequency-modulated signals in FM transmitters. Second year project.ĭepartment of Information & Communication Technology Parves, Nushera Tazrin, Saqiul Islam, Prokash Pal, Tanvir Ahmed, and Abdul Ahad has beenĬarried out in under my supervision, and that this work has not been submitted elsewhere for a This is to certify that the project report on “ Fm Radio Transmitter ” done by K. FM transmitters are used to reduce noise in certain places.Project Report on FM TRANSMITTER Department of ICT Comilla University Prepared By: Supervised By: Pintu Chandra Paul Lecturer Department of ICT Submission Date: 26 September, 2022 NAME ID K.FM transmitter circuits are used in wireless sound systems in vehicles and offices.Then, the modulated signal is transmitted or radiated as radio waves at a frequency in the FM frequency range. The main purpose of the variable capacitor is to change the resonance frequency to obtain the best FM signal band. The audio signal obtained from the microphone passes through the base of the transistor to modulate the output signal of the LC circuit in the form of FM. The transmitter circuit stores energy for oscillation as it is obtained from LC circuits. When current is passed through L1 Inductor and the variable capacitor, the FM Transmitter Circuit will start oscillating with the resonant frequency of the carrier signal. The oscillation circuit consists of the transistor (2N3904), inductor, and variable capacitor. The oscillator is required to generate carrier waves in the FM transmitter. The air pressure around the mic produces such capacitance. The microphone is assumed to catch the sound signals and there is the presence of a sensor with a capacitance value inside it. The circuit diagram is shown for the FM transmitter.
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