modulator-demodulator


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mod´u`la`tor-de`mod´u`la`tor


n. 1. An electronic device that converts electronic signals into sound waves, and sound waves into electronic signals, used to transmit information between computers by the use of ordinary telephone lines; usually called a modem.
Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.
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The device is a future-proof modulator-demodulator solution that maximizes flexibility, efficiency, and cost savings for satellite operators.
Aviat's Symbol Repeater adds adaptive functionality to regain lost signal-to-noise ratio on a dynamic basis, thereby achieving the benefits of repeating without adding modem (modulator-demodulator) latency.
Among other things, one needed to learn how to program Hypertext Markup Language; figure out how to use File Transfer Protocol to copy a file from one computer to another over a Transmission Control Protocol/Internet Protocol-based network; use the phone book to find a local business that would "host" files; and then get a modulator-demodulator to call the phone number of this "host's" computer.

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