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Encyclopedia > DiSEqC
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DiSEqC switch
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DiSEqC switch

DiSEqC (Digital Satellite Equipment Control) is a special communication protocol for use between a satellite receiver and a device such as a multi-dish switch or a small dish antenna rotor. It is compatible with the actuators used to rotate large C band dishes if used with a DiSEqC positioner. It relies only on the coaxial cable to transmit both bidirectional data/signals and power. Download high resolution version (910x1209, 88 KB) Wikipedia does not have an article with this exact name. ... Download high resolution version (910x1209, 88 KB) Wikipedia does not have an article with this exact name. ... Jump to: navigation, search A satellite is any object that orbits another object (which is known as its primary). ... 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). ... Jump to: navigation, search Electrical switches. ... R0t0r is from efnet ... C band (compromise band) is a portion of electromagnetic spectrum in the microwave range of frequencies ranging from 4 to 6 GHz. ... coaxial cable In geometry, coaxial means that two or more forms share a common axis; it is the three-dimensional analog of concentric. Coaxial cable, for example, has a conducting wire in the center and a second conducting layer running all the way around the exterior circumference, under the insulation. ... The term bidirectional can refer to: Bidirectional script support Duplex This is a disambiguation page — a navigational aid which lists other pages that might otherwise share the same title. ... Jump to: navigation, search DATA (Debt, AIDS, Trade, Africa) was established in 2002 by Bono (Paul Hewson) of the Rock band U2, and Bobby Shriver, along with activists from the Jubilee 2000 Drop the Debt Campaign, as an organisaton focused on Justice, not charity. ... Signaling, or signal, may mean: Look up signal on Wiktionary, the free dictionary. ... Electrical energy or electromagnetic energy is a form of energy present in any electric field or magnetic field, or in any volume containing electromagnetic radiation. ...


DiSEqC is commonly used to control multi switches and claims to be more flexible than 13/18 volt and 22 kHz tone or ToneBurst/MiniDiSEqC techniques.


A number of variations of DiSEqC exist.

  • DiSEqC 1.0, which allows switching between up to 4 satellite sources
  • DiSEqC 1.1, which allows switching between up to 16 sources
  • DiSEqC 1.2, which allows switching between up to 16 sources, and control of a simple horizontal-panning satellite motor
  • DiSEqC 2.0, which adds bi-directional communications to DiSEqC 1.2

All four variations were standarised by February 1998, prior to general use of digital satellite. They are all back compatible - a DiSEqC 2.0 receiver can control a 1.0 switch; but a 1.0 receiver cannot control motorised features. 1998 is a common year starting on Thursday of the Gregorian calendar, and was designated the International Year of the Ocean. ...


The terms DiSEqC 1.3 and 2.3 are often used by manufacturers and retailers to refer to other protocols (1.3 usually refers to USALS receivers), but these uses are not authorised by Eutelsat, the developers of the system, who now act as the protocol standards agency. Jump to: navigation, search Universal Satellites Automatic Location System (USALS), also known (unofficially) as , Go X or Go to XX is special program found in digital satellite receivers that automatically creates a list of available satellite positions in a motorised satellite dish setup. ... Eutelsat S.A. is a French corporation which operates 24 telecommunications satellites in geosynchronous orbit. ...


Eutelsat apparently developed the system to allow satellite users in Continental Europe to switch between the more popular SES Astra 1 block of satellites and Eutelsat's own Hotbird system. As a result, the vast majority of European satellite receivers support at least DiSEqC 1.2, with the notable exception of the Sky Digibox, an extremely popular DVB-S receiver. Most supporting receivers have received certification to carry a logo specifying which variation of DiSEqC they support. Continental Europe refers to the continent of Europe, explicitly excluding European islands and peninsulae. ... SES Astra SA, a subsidiary of SES Global, is a Luxembourg-based corporation which owns and operates the Astra series of geostationary satellites, which transmit approximately 1100 analogue and digital television and radio channels via 176 transponders to 91 million households across Europe. ... Hot Bird is the common name of a family of 5 satellites operated by Eutelsat, located at 13 degrees East over the Equator (orbital position) and transmitting in free-to-air towards 98 million households in Europe, North Africa &, the Middle East. ... 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 Digibox is a device marketed by Sky Television in the UK to enable home users to receive digital satellite television broadcasts (satellite receiver). ... DVB, short for Digital Video Broadcasting, is a suite of internationally accepted, open standards for digital television maintained by the DVB Project, an industry consortium with more than 300 members, and published by a Joint Technical Committee (JTC) of European Telecommunications Standards Institute (ETSI), European Committee for Electrotechnical Standardization (CENELEC...


See also

Jump to: navigation, search Universal Satellites Automatic Location System (USALS), also known (unofficially) as , Go X or Go to XX is special program found in digital satellite receivers that automatically creates a list of available satellite positions in a motorised satellite dish setup. ...

External link


  Results from FactBites:
 
What is DiSEqC? DiSEqC is an open standard that stands for Digital Satellite Equipment Control (701 words)
DiSEqC messages are sent as sequences of short bursts of 22KHz tone modulated on the LNB power supply carried by the coax cable from the LNB input on the receiver (the master).
This is followed by a number of Data bytes to pass on numbers relevant to the command (such as the angle required from a separate polariser).
DiSEqC system has been designed primarily to meet the problem of two-satellite, two-band systems with ease.
Eutelsat : DiSEqC specifications for satellite receiver and peripheral equipment communications (219 words)
Full specifications and associated documentation for the DiSEqC™ (Digital Satellite Equipment Control) system, which is a communication bus between satellite receivers and peripheral equipment using only the existing coaxial cable.
DiSEqC™ can be integrated into consumer satellite installations to replace all conventional analogue switching, providing a standardised digital system with non-proprietary commands and enabling switching in multi-satellite installations.
Eutelsat is now considering the best way to incorporate this new protocol (if possible) in to the DiSEqC™ standard to ensure compatibility with all other DiSEqC™ products on the markets.
  More results at FactBites »


 

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