Transcription of Chapter Fifteen COMMUNICATION SYSTEMS
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INTRODUCTIONC ommunication is the act of transmission of information. Every livingcreature in the world experiences the need to impart or receive informationalmost continuously with others in the surrounding world. Forcommunication to be successful, it is essential that the sender and thereceiver understand a common language. Man has constantly madeendeavors to improve the quality of COMMUNICATION with other humanbeings. Languages and methods used in COMMUNICATION have keptevolving from prehistoric to modern times, to meet the growing demandsin terms of speed and complexity of information. It would be worthwhileto look at the major milestones in events that promoted developments incommunications, as presented in Table COMMUNICATION has its roots in the 19th and 20th century inthe work of scientists like Bose, Morse, G.
Communication System 517 (vii) Amplification: It is the process of increasing the amplitude (and consequently the strength) of a signal using an electronic circuit called the amplifier (reference Chapter 14). Amplification is
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For long-distance communication, Texas Instruments, Long distance, Communication, Communication Systems, Role of Information and Communication, FREQUENCY COMMUNICATION SYSTEMS IN, FREQUENCY COMMUNICATION SYSTEMS IN UNDERGROUND MINES, Underwater Radio Communication, COMMUNICATION INSTRUCTIONS GENERAL, Proxemic theory