Communication Modes PDF
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This document covers different communication modes, including equipment operation range, communication systems, and forms of message. It also discusses issues like noise, distortion, and interference, and different types of communication mediums. These techniques are important in different contexts, such as electronics and telecommunications.
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ommunication C - Equipment operation Range - sending / receiving message MODES OF COMMUNICATION -Exchanging info SIMPLEX -one way ommunication system C...
ommunication C - Equipment operation Range - sending / receiving message MODES OF COMMUNICATION -Exchanging info SIMPLEX -one way ommunication system C UPLEX D Process which describe info exchange Full - 2 way alternate; not same time Half - simultaneously Info - conveyed in bits/dits Message- physical manifestation of info CHOPLEX - transmitted info is sent back E in different form ORMS OF MESSAGE F Signal LF 30 - 300 hz E C power line A Analog - physical quantity varies w/ time VLF 300 - 3000 hz Human voice Digital - ordered sequence of symbols VF 3kh - 30k music instrments LF 30k - 300 k aeronautics, marine odes C MF 300k - 3M am broadcasting Letters/numbers F 3M- 30M H r adio, cb comm LEMENTS OF COMMUNICATION E VHF 30 - 300 M FM broadcasting, tc SYSTEM UHF 300 - 3 G uhf tv Transmitter- collection of electronic SHF 3G - 30G satellite, radar components to convert info into signal EHF 30G - 300G “ specialized radar OMMUNICATION CHANNEL - C ORMS OF COMMUNICATION F Medium which electronic signal sent Radio telephony Broadcasting IRE MEDIUM- confined signals within W Point-to point comm proximity Mobile comm WIRELESS MEDIUM- no signal limits omputer comm C Radar OISE - random undesirable electric energy N Radio telemetry DISTORTION - waveform perturbation Radio aids and comm INTERFERENCE - contamination by signals ATTENUATION - reduces signal amplitude DDITIONAL A significance of the electromagnetic ECEIVER -collection of electronic R spectrum in communications? components that accepts transmitted It enables data transmission across various message and converts it into media and allows data transmission through understandable form air, fiber optics, or other media SOLUTION IN COMMUNICATION Interferenceaffects signal quality, not the ability of a signal to reach its destination. OISE - filter N INTERFERENCE - filter hysical barriersblock the signal path P DISTORTION - Equalizer entirely. preventing the signal from reaching ATTENUATION - Amplifier its intended destination. SIGNAL LOSS - ttenuationreduces signal amplitude as it A ARRIERS TO COMM B travels through a medium, leading to: Language -Weaker signal strength Distance -Increased noise interference -Potential loss of data quality IMITATIONS OF COMMUNICATION L -Noise nalog Technology:Represents data as A -Bandwidth - portion of electromagnetic continuous signals (e.g., sound waves). spectrum occupied by signal Digital Technology: Represents data as -USF - LSF discrete values (0s and 1s).
