2/19/2012 08:07:00 PM
alasnews
How
Cell Phone Work
A
cell phone is a great gadget in this modern world. What is a cell
phone? A cell phone is actually a radio in certain way. Like a radio,
by a cell phone we can communicate to other people in real time.
Million people use cell phone for their communication. Even nowadays,
people use cell phones to communicate in voice, written and data.
Alexander Graham Bell is the person who make great change in the way
people communicate to each other. He invented a telephone in 1876.
While wireless radio was formally known in 18994 presented by
Guglielmo Marconi. By these two technologies, then a cell phone was
born. However do you know how actually cell phones work?
This
short explanation on how a cell phone work is really wonderful. A
cell phone or in long term "cellular telephone' works by
transmitting signals of radio to towers of cellular. The towers are
networked to a central switching station. The connection usually uses
wire, fiber optic-cables, or microwave.
Then
the central switching station which handles calls in certain given
area is directed connected to the wire-based telephone system.
Cellulars are pick up by the towers and relayed to another cellular
telephone user or the user of wire-based telephone network.
the
towers vary in the capacity and capability to receive signals. Some
can receive the signal from short distance and the others can receive
more distance. However, there are usually more than one tower in
certain given area so that the system can handle the increasing
telephone traffic.
Posted in 
No Response to "How Cell Phone Work"