six-channel relay transmission station
81History of computing hardware — Computing hardware is a platform for information processing (block diagram) The history of computing hardware is the record of the ongoing effort to make computer hardware faster, cheaper, and capable of storing more data. Computing hardware… …
82FM broadcast band — The FM broadcast band, used for FM broadcast radio by radio stations, differs between different parts of the world. In Europe and Africa (ITU region 1), it spans from 87.5 to 108.0 megahertz (MHz), while in America (ITU region 2) it goes only… …
83WVAH-TV — Infobox Broadcast call letters = WVAH TV city = station station slogan = station branding = WVAH Fox 11 (general) Fox 11 Eyewitness News (newscasts) analog = 11 (VHF) digital = 19 (UHF) other chs = affiliations = Fox network = founded = airdate …
84High-Level Data Link Control — (HDLC) is a bit oriented synchronous data link layer protocol developed by the International Organization for Standardization (ISO). The original ISO standards for HDLC were: *ISO 3309 mdash; Frame Structure *ISO 4335 mdash; Elements of Procedure …
85Voice of America — (VOA), is the official external radio and television broadcasting service of the United States federal government. Its oversight entity is the Broadcasting Board of Governors (BBG). VOA broadcasts by satellite and on FM, AM, and shortwave radio… …
86Army Communications and Information Systems (United Kingdom) — The British Army operates a wide range of communications and information systems [ [http://www.army.mod.uk/3512.aspx Royal Signals Equipment] ] . Some of these are specialised military systems, while others are procured off the shelf. They fall… …
87Hubble Space Telescope — Infobox Space telescope name = Hubble Space Telescope (HST) caption = The Hubble Space Telescope as seen from Space Shuttle Discovery during its second servicing mission (STS 82) organization = NASAESASTScI alt names = nssdc id =… …
88Chesterfield Transmitter — Infobox UK Transmitter name = Chesterfield height = convert|50|m|ft|0|lk=on built = demolished = collapsed = relay = Emley Moor BBC = BBC Yorkshire ITV = ITV YorkshireThe Chesterfield Transmitter is a television and radio transmitter which serves …
89Timeline of historic inventions — The timeline of historic inventions is a chronological list of particularly important or significant technological inventions. Note: Dates for inventions are often controversial. Inventions are often invented by several inventors around the same… …
90Medium wave — Main article: Medium frequency Medium wave (MW) is the part of the medium frequency (MF) radio band used mainly for AM broadcasting. For Europe the MW band ranges from 526.5 kHz to 1606.5 kHz[1] and in North America an extended MW… …
