television relay signal
51Coaxial cable — RG 59 flexible coaxial cable composed of: A: outer plastic sheath B: woven copper shield C: inner dielectric insulator D: copper core Coaxial cable, or coax, has an inner conductor surrounded by a flexible, tubular insulating layer, surrounded by …
52Satellite radio — is an analogue or digital radio signal that is relayed through one or more satellites and thus can be received in a much wider geographical area than terrestrial FM radio stations. While in Europe many primarily FM radio stations provide an… …
53Channel (communications) — Old telephone wires are a challenging communications channel for modern digital communications. In telecommunications and computer networking, a communication channel, or channel, refers either to a physical transmission medium such as a wire, or …
54TV and FM DX — TV DX and FM DX is the active search for distant radio or television stations received during unusual atmospheric conditions. The term DX is an old telegraphic term meaning long distance. VHF/UHF television and radio signals are normally limited… …
55WKPT-TV — Infobox Broadcast call letters = WKPT TV city = station station slogan = ABC 19 Tri Cities News Source station branding = ABC 19 WKPT analog = 19 (UHF) digital = 27 (UHF) other chs = affiliations = ABC RTN (DT3) network = founded = airdate =… …
56Emergency Broadcast System — For the record label, see Emergency Broadcast System Records. For the multimedia group, see Emergency Broadcast Network. The Emergency Broadcast System (EBS) was an emergency warning system in the United States, used from 1963 to 1997, when it… …
57List 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,… …
58optics — /op tiks/, n. (used with a sing. v.) the branch of physical science that deals with the properties and phenomena of both visible and invisible light and with vision. [1605 15; < ML optica < Gk optiká, n. use of neut. pl. of OPTIKÓS; see OPTIC,… …
59Videoconferencing — See also: List of video telecommunication services and product brands A Tandberg T3 high resolution telepresence room in use (2008) …
60Rural Radio Network — The Rural Radio Network (RRN) was an interconnected group of six commercial FM radio stations spread across upstate New York and operated from Ithaca, NY the first all radio, no wireline network in the world. [ Pattern for FM Profit: Part 6… …
