Classification of Communication Technology

Classification of Communication Technology:

Regarding the mode of propagation, communication may be divided in the following two forms:

1. Lines communication:

In line communication, the medium of transmission is a pair of conductors called transmission line. This is also called as line as line channel. This means that in line also called as line communication, the transmitter and the receiver are connected through a wire or line. However, the installation and maintenance of a transmission line is not only costly and complex but also overcrowds the open space. Apart from this, its message transmission capability is also limited.

2. Wireless communication:

In wireless communication or radio communication, a message is transmitted through open space by electromagnetic waves called as radio waves. Radio waves are radiated from the transmitter in open space through a device called antenna. A receiving antenna intercepts the radio waves at the receiver. All the mobile, radio, TV and satellite broadcasting are wireless communication. The advantages of wireless communication are cost effectiveness, possible long distance communication and simplicity.