COMMUNICATION : The process of transmitting the information from one place to another place is called communication
Elements oF Communication :
Transmitter : The device which transmits the information is called  transmitter

Receiver:The device which receives the information is Called Receiver

Medium Or Channel: The path through which the information is transmitted from transmitter to receiver is called Medium or channel

NOISE: The unwanted Disturbance is called Noise

TYPES OF COMMUNICATION :-
   There are two types of communication 
1) Point to point Communication 
2)Broadcast Communication 

Point to point Communication:-
The communication in which there is one transmitter and one receiver is used
e.g. Telephone 

BROADCAST COMMUNICATION :-
There is one transmitter and multiple receiver is used
e.g. TV, Radio

SOME TERM RELATED TO COMMUNICATION:

•MESSAGE SIGNAL
Message signals have to converted into electrical signals to make them suitable  for transmission through the channel
THE ELECTRICAL SIGNAL ARE TWO TYPES :-

ANALOG SIGNAL:-


DIGITAL SIGNAL:-





TRANSDUCER: 



ATTENUATION:-


AMPLIPICATION:


RANGE:


MODULATION:


DEMODULATION:

REPEATER:

BAND WIDTH: