|
|
The below is a sample preview of the full essay that is available in our database. To see
the full paper, just register for a free account. You get
access to thousands of example term papers in our super free essay database without paying
a cent.
|
Beginning of Paper
|
Radio Waves
In the modern society, radio is the most widely used medium of
broadcasting and electronic communication : it plays a major role in many areas
such as public safety, industrial manufacturing, processing, agriculture,
transportation, entertainment, national defense, space travel, overseas
communication, news reportin ....
|
|
Middle of Paper
|
.... modulation is the oldest method of transmitting voice and
music through the airwaves is by amplitude modulation. This is accomplished by
combining a sound wave from a microphone, tape, record, or CD with a "carrier"
radio wave. The result : a wave that transmits voice or programming as its
amplitude ( intensity ) increases and decreases. Amplitude modulation is used by
station broadcasting in the AM band and by most international short wave
stations.
Frequency modulation is another way to convey information, voice , and
music on a radio wave is to slig ....
|
|
|
SUBJECTS
