shortwave modem
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Bell 103 modem — The Bell 103 modem was the first commercial modem for computers, released by AT T in 1962. It allowed digital data to be transmitted over regular telephone lines at a speed of 300 bits per second.The Bell 103 modem used audio frequency shift… … Wikipedia
Power line communication — or power line carrier (PLC), also known as power line digital subscriber line (PDSL), mains communication, power line telecom (PLT), power line networking (PLN), or broadband over power lines (BPL) are systems for carrying data on a conductor… … Wikipedia
Broadband Internet access — Broadband Internet access, often shortened to just broadband, is high speed Internet access typically contrasted with dial up access over a modem.Dial up modems are generally only capable of a maximum bitrate of 56 kbit/s (kilobits per second)… … Wikipedia
Slow-scan television — (SSTV) is a picture transmission method used mainly by amateur radio operators, to transmit and receive static pictures via radio in monochrome or color.A technical term for SSTV is narrowband television. Broadcast television requires huge 5, 6… … Wikipedia
Radioteletype — (RTTY) is a telecommunications system consisting of two or more teleprinters using radio as the transmission medium.The term radioteletype is used to describe:* either the entire family of systems connecting two or more teleprinters over radio,… … Wikipedia
Communications in Mauritius — History= Basic telephony was introduced in Mauritius in October 1883. The first telephone line was set up between the Colony Governor s residence in Reduit and Government House in Port Louis. [ [http://www.icta.mu/documents/publications/ictview.pd… … Wikipedia
Marconi Station — The New Brunswick Marconi Radio Station in Somerset, New Jersey, being toured in 1921 by some of the greatest physicists and scientists of the era, including Albert Einstein and Nikola Tesla. The Marconi Wireless Corporation operated numerous… … Wikipedia
Telegraphy — (from the Greek words (τηλε) = far and (γραφειν) = write) is the long distance transmission of written messages without physical transport of letters. Radiotelegraphy or wireless telegraphy transmits messages using radio. Telegraphy includes… … Wikipedia
Communications in the People's Republic of China — Telecommunications in China redirects here. For the industry, see Telecommunications industry in China. This article is about Communications in the People s Republic of China, excluding Hong Kong and Macau (see Communications in Hong Kong and… … Wikipedia
List of electronics topics — Alphabetization has been neglected in some parts of this article (the b section in particular). You can help by editing it. This is a list of communications, computers, electronic circuits, fiberoptics, microelectronics, medical electronics,… … Wikipedia
Orthogonal frequency-division multiplexing — Passband modulation v · d · e Analog modulation AM · … Wikipedia
