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Encyclopedia > Ekran

Ekran (Экран, Screen) was a Soviet-Russian type of geostationary satellite, developed for a national system of Direct-To-Home television. The first satellite of Ekran series was launched in 1976. Each satellite in the Ekran series was designed to provide one TV and 2 radio program channels to cable TV systems throughout the USSR and to individual home receivers in northern Siberia. Ekran's downlink is in the UHF range. Early Ekran satellites used orbital positions in the range from 48 degrees E to 95 degrees E, but recent Ekrans, including the current Ekran 20, have been stationed at 99 degrees E. These 3-axis stabilized satellites carry a single 24 MHz, 200 W transponder, feeding a 28 dB gain antenna transmitting on right-hand circular polarization to produce e.i.r.p.s in Siberia in the range 50 to 55 dBW at 714 MHz. The corresponding feeder link uses left-hand circular polarization at 6200 MHz. Therefore, almost every householder could receive the TV signal at home from Ekran's transponder using a simple Yagi-Uda antenna.There were also various kinds of collective or individual satellite receivers, such as Ekran KR-10, Ekran-KR-01 and Ekran. Latest version of receiver represents a simple individual TV set-top box itself. A modified version of Ekran was called Ekran-M. Ekran satellites have been replaced by improved geostationary craft for DBS, such as Gorizont, Gals, and Express. It has been suggested that Satellite orbit be merged into this article or section. ... A Satellite dish antenna A satellite dish is a type of parabolic reflector antenna designed with the specific purpose of transmitting signals to and/or receiving from satellites. ... Look up Channel on Wiktionary, the free dictionary In general, channel refers to the path between two endpoints. ... A cable is two or more wires or optical fibers bound together, typically in a common protective jacket or sheath. ... Look up system in Wiktionary, the free dictionary. ... The word receiver has a number of different meanings: In communications and information processing, a receiver is the recipient (observer) of a message (information), which is sent from a source (object). ... Siberian Federal District (dark red) and the broadest definition of Siberia (red) Siberia (Russian: , Sibir’; Tatar: Seber) is a vast region of Russia and northern Kazakhstan constituting almost all of Northern Asia. ... Ultra high frequency (UHF) designates a range (band) of electromagnetic waves whose frequency is between 300 MHz and 3. ... Look up degree in Wiktionary, the free dictionary. ... In biology, antenna (plural: antennae) refers to the sensing organs of several arthropods. ... In electrodynamics, polarization (also spelled polarisation) is the property of electromagnetic waves, such as light, that describes the direction of their transverse electric field. ... Look up range in Wiktionary, the free dictionary. ... In telecommunication, the term transponder (sometimes abbreviated to XPDR or TPDR) has the following meanings: An automatic device that receives, amplifies, and retransmits a signal on a different frequency (see also broadcast translator). ... A Yagi-Uda antenna. ... A Yagi-Uda antenna An antenna or aerial is an electronic component designed to transcieve radio signals (and, more generally, other electromagnetic waves). ... The word receiver has a number of different meanings: In communications and information processing, a receiver is the recipient (observer) of a message (information), which is sent from a source (object). ... The term set-top box (STB) describes a device that connects to a television and some external source of signal, and turns the signal into content then displayed on the screen. ... The acronym DBS may stand for the following, depending on context: Aston Martin DBS – an automobile model of the Aston Martin brand DBS Bank – the largest bank in South East Asia, based in Singapore Deep brain stimulation Den Beste Sykkel ( The Best Bike) – a Norwegian bicycle brand and manufacturer Diocesan...

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  Results from FactBites:
Ekran (1619 words)
Ekran was the Soviet Union's first geosynchronous satellite.
The first Ekran was launched on 26 October 1976, 27 months after the experimental Molniya 1S, the first Soviet geostationary test.
The YeSSS was defined as the Molniya-2 in elliptical orbit and Raduga (Statsionar) in geosynchronous orbit.
  More results at FactBites »



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