ABSTRACT
An FM transmitter is an electronic device which, with the aid of an antenna, produces radio waves. The transmitter itself generates a radio frequency alternating current, which is applied to the antenna. When excited by this alternating current, the antenna radiates radio waves. Frequency modulation (FM) transmitter generates the radio waves by varying the radio signal's frequency slightly. FM transmitter is basically a VHF colipits oscillator capable of transmitting sound or music to any standard FM receiver. The circuit works on a D.C source which makes it for a pure rectification. FM transmitter also has a capacitor microphone which picks up very weak sound signals. This FM transmitter was designed using transistors and other component such resistor, inductor and capacitors. This project transmits frequency on 100MHz± 5%. The transmitting distance is l00metres. It is powered with 9volts D.C battery using suitable F.M receiver tuned to the transmitting frequency of this project. F.M Transmitter can be used as cordless microphones, mobile phone and for public address purposes. The distant of transmission is limited to 100m and fixed frequency of transmission, away from all other radio station. This gives best range and least interference. The antenna is attached to the outside of the transmitter, as in portable devices such as cell phones, walkie-talkies, and garage door openers. In more powerful transmitters, the antenna may be located on top of a building or on a separate tower, and connected to the transmitter by a feed line, that is a transmission line.
ABSTRACT
The study is to assess the gender inequality and women participation in politics: 2011 General election in...
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This study was carried out tocritically analyze the impact of t...
STATEMENT OF RESEARCH PROBLEM
According to Anya...
Introduction
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The present study -was set to investigate the impact of advertising on the consumer buying decision. The st...
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Banking in Nigeria has gone through various changes within this decade. The industry has grown beyond optimisti...
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Information communication technology has brought numerous innovative success in the constructi...
Background Of The Study
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Of the major advancements in the Information Technology industry, the 90s saw the development of Business Process Reengineering...