Transcription of 2. TELECOMMUNICATIONS BASICS - WNDW
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2. TELECOMMUNICATIONS BASICS - WNDW
2. TELECOMMUNICATIONS BASICSThe purpose of any TELECOMMUNICATIONS system is to transfer information from the sender to the receiver by a means of a communication information is carried by a signal, which is certain physical quantity that changes with time. The signal can be a voltage proportional to the amplitude of the voice, like in a simple telephone, a sequence of pulses of light in an optical fibre, or a radio-electric wave irradiated by an analog signals, these variations are directly proportional to some physical variable like sound, light, temperature, wind speed, etc. The information can also be transmitted by digital binary signals, that will have only two values, a digital one and a digital zero.
2. TELECOMMUNICATIONS BASICS The purpose of any telecommunications system is to transfer information from the sender to the …
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