Abstract
FM (Frequency Modulation) signal transmitter is a small device that can be used to transmit Frequency Modulation signal over short range. It also protects signal from interference and unwanted signals. Audio signal/voice signal is modulated into radio frequency carrier, new radio frequency signal moves up and down in frequency. This document consists of most simple and economical technique for building a FM transmitter using basic electronic component like resistor, inductor, capacitor etc. The FM transmitter receives human voice signal through microphone. It further amplifies it, and modulates over carrier and finally gets transmitted to it. Frequency modulation transmitter has many merits over the (AM) Amplitude modulation. It protects the signal from interference and unwanted signal that is noise. It provides high Signal to Noise than Amplitude modulation. Overview of frequency modulation (FM) is the frequency of radio wave which is less endangered to the noise than AM. Frequency modulation are indigenous to reduce the noise which enhances the quality of radio reception.
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