![]() (i) Signal Information converted into electrical form and suitable for transmission is called a signal. Basic Terminology used in Electronic Communication Systems ![]() (ii) Broadcast In the broadcast mode, there are a large number of receivers corresponding to a signal transmitter, e.g. (i) Point-to-point In this type of communication mode, communication takes place over a link between a signal transmitter and a receiver, e.g. There are two basic modes of communication given as below: The following table shows the various things used in communication system.Ĩ. Bandwidth of Communication Channel The range of frequencies used to pass through channel is known as bandwidth.ħ. (i) Guided (point-to-point) (ii) UnguidedĦ. Communication Channel The physical path between the transmitter and receiver is known as communication channel. ![]() The main function involves picking up the signals, demodulating and displace the original message signal.ĥ. Receiver Its main function is to decode the original signals. Transmitter It consists of transducer/signal generators, modulators and transmitting antenna.Ĥ. Communication System A system comprises of transmitter, communication channel and receiver.Ī block diagram of a generalised communication system is shown as below:ģ. Communication Communication is the act of transmission and reception of information.Ģ.
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