the world's first wireless telephone transmission between two buildings, some meters ( feet) apart. [ ] [ ] its first practical use came in military communication systems many decades later, first for optical telegraphy. german colonial troops used heliograph telegraphy transmitters during the herero...
language: en pl customer: szpital uniwersytecki w krakowie number: publication date: - - contract value: (usd) price original: (pln) source: ted deadline: days descripition in original language tags: office equipment and supplies electrotechnical, electronic and electromechanical equipment actions with...
country: poland language: en pl customer: ministerstwo rodziny, pracy i polityki społecznej number: publication date: - - contract value: (usd) price original: (pln) source: ted deadline: days descripition in original language tags: electrotechnical, electronic and electromechanical equipment actions with...
public telecommunication . the pstn consists of telephone lines , fiber optic cables , microwave transmission links, cellular networks , communications satellites , and undersea telephone cables , all interconnected by switching centers , thus allowing most telephones to communicate with each other....
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us home management company history generation transmission distribution gas assets news procurement invitation to tender procurement portal events contact us ihovbor power plant learn more alaoji power plant learn more calabar power plant learn more egbema power plant learn more gbarain power plant learn...
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television service (known as a "channel" or "station" in some areas), see television network . a television station is a set of equipment managed by a business, organisation or other entity, such as an amateur television (atv) operator, that transmits video content and audio content via radio waves...
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