BASIC OFTELECOMMUNICA TIONPREPARED BY: HANNAH MAY ROSALES PREPARED TO: MS. GERALDINE MALLO
What is telecommunication?•The transmission of informationthat allows for communicationbetween people who are separatedby distance.
Examples ofTelecommunication :•telephone system•satellitecommunication system•mobile cellular system•radar and sonar systems•microwave radio systems•TV and radio broadcasting systems•space discovery using telecommunications•oil exploration using radio frequencyanalysis warfare communications•information and intelligent gathering
Three units of telecommunication:A) A transmitter that takesinformation and converts it to asignal.B) A transmission medium, alsocalled the “physical channel” thatcarries the signal.C) A receiver that takes the signalfrom the channel and converts itback into usable information.
Basic Elements of TelecommunicationSender•who uses a transmitter which convertsthe message into a signal.Transmitter• transmits the information through amedium to the receiver which transmitsthe signals into information that can beused and understood by people.
Transmission medium• carries the signalSender•receives the signal and converts it backinto usable informationChannel• responsible to transfer the informationfrom the source to the destination withoutdistortion or loss of information. Channelstend to be affected by external signals ornoise. To achieve this a variety of"protocols" or rules are used.
Telecommunication network• represent all the players that maketelecommunication possible, from thetransmitters and receivers to thecommunication mediums that make itpossible for the messages to betransmitted.Telecommunication medium•refersto the channel that carries the signalbetween a transmitter and a receiver.Examples of telecommunication media inour modern times are optical fibre as wellas cables.