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7th March 2016, 04:05 PM
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Join Date: Apr 2013
Re: Telecommunication key concepts

Telecommunication is defined as Any transmission, emission or reception of signs, signals, writings, images and sounds or intelligence of any nature by wire, radio, optical or other electromagnetic systems.

Key concepts

A number of key concepts reoccur throughout the literature on modern telecommunication theory and systems.

Some of these concepts are discussed below.

Basic elements

Telecommunications is primarily divided up between wired and wireless subtypes.

Overall though, a basic telecommunication system consists of three main parts that are always present in some form or another:

A transmitter that takes information and converts it to a signal

A transmission medium, also called the "physical channel" that carries the signal.

A receiver that takes the signal from the channel and converts it back into usable information for the recipient.

More about telecommunication

The simplest form of telecommunications takes place between two stations.

It is common for multiple transmitting and receiving stations to exchange data among themselves.

Such an arrangement is called a telecommunications network. The Internet is the largest example.

On a smaller scale, examples include:

Corporate and academic wide-area networks (WANs)

Telephone networks

Police and fire communications systems

Taxicab dispatch networks

Groups of amateur radio operators


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