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What is Modulator-demodulator?
in Communications by engr III (10.4k points) | 88 views

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1. Modulator-demodulator is a device that converts binary data to audio-frequency-shift-keyed (AFSK) analog signals, and vice-versa. It is commonly used to interface computers and terminals with telephone lines and radio transceivers. It is also called modem.

2. It is a circuit or device, such as a biased diode or diode bridge, that can perform either modulation or demodulation.

See also, Modulation frequency

by engr III (10.4k points)

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