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Communications project By Ruben Thumbadoo 9S Contents Communication System Fibre-Optics Signals Storage Transducers History of Communication Radio Waves Modulation Satellites Communication System In an Communication system there are many building blocks which create the whole system. There are: Encoder An encoder puts a signal into code before it is transmitted. This can increase security. Modulator Subtracts the carrier wave (the radio wave) from the incoming signal so that the information it is carrying can be used e.g. as a message or radio/TV programme.a Decoder Device that decodes a message once it is received. Storage Records the data to be used later. Transmitter A transmitter takes a signal and sends it to a receiver. This may be a television transmitter sending the waves carrying TV programmes to your television aerial. There is a transmitter in your mobile phone that sends the signal to the nearest mobile phone mast (antenna).For light signals the transmitter is a laser that sends light along the optical fibre. Receiver A receiver is a device that will receive the...

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