Communication System

A communication system is a collection of individual communication networks,transmission systems,relay systems,tributary stations, and data terminal equipment (DTE) usually capable of interconnection and interoperation to form an integrated whloe.The components of communication system serve a common purpose,are technically compatible,use common procedures,respond to controls,and operate in unison.Telecommunication is a method oc communication(e.g,broadcasting,mass media,journalism, etc).
A communication subsyestem is a functional unit that is smaller than the large assembly under considerations.Examples of communication subsyestems os the Defense Communications System(DCS) are:satellite link,interconnect facilities at each Earth terminal of the sattellite link,optical fiber cable.Communication system basically consists of a receiver,frequency translator and a transmitter.It also contains transponders and other transponders in it and communication satellite communication system receives signals from the antenna subsystems.The examples are Optical Communication System,Radio Communication System,Power line Communication System,Duplex Communication System,Tactical Communication System.