what is modulation and demodulation
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The modem does the work of modulation and demodulation
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Modulation :- In electronics and telecommunications, modulation is the process of varying one or more properties of a periodic waveform, called the carrier signal, with a modulating signal that typically contains information to be transmitted. ... A modem (from modulator–demodulator) can perform both operations.
Demodulation :- Demodulation is extracting the original information-bearing signal from a carrier wave. ... There are many types of modulation so there are many types of demodulators. The signal output from a demodulator may represent sound (an analog audio signal), images (an analog video signal) or binary data (a digital signal).
Demodulation :- Demodulation is extracting the original information-bearing signal from a carrier wave. ... There are many types of modulation so there are many types of demodulators. The signal output from a demodulator may represent sound (an analog audio signal), images (an analog video signal) or binary data (a digital signal).
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