Description
1.0 INTRODUCTION
1.1 BACKGROUND OF THE STUDY
In electronics and telecommunications a transmitter or radio 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. In addition to their use in broadcasting, transmitters are necessary
component parts of many electronic devices that communicate by radio, such as
cell phones, wireless computer networks, Bluetooth enabled devices, garage door
openers, two-way radios in aircraft, ships, and spacecraft, radar sets, and
navigational beacons.