DVB-S
Encyclopedia
DVB-S is an abbreviation for Digital Video Broadcasting — Satellite; it is the original Digital Video Broadcasting forward error coding
and demodulation standard for satellite television
and dates from 1994, in its first release, while development lasted from 1993 to 1997. The first application was commercially available in France via Canal+
, enabling digitally broadcast, satellite-delivered television to the public.
It is used via satellites serving every continent of the world. DVB-S is used in both multiple channel per carrier (MCPC) and SCPC
modes for broadcast network
feeds, as well as for direct broadcast satellite
services like Sky Digital
(UK) via Astra
in Europe, Dish Network
and Globecast in the U.S. and Bell TV in Canada
.
While the actual DVB-S standard only specifies physical link characteristics and framing, the overlaid transport stream delivered by DVB-S is mandated as MPEG-2, known as MPEG transport stream (MPEG-TS).
Some amateur television
repeaters also use this mode in the amateur band.
Forward error correction
In telecommunication, information theory, and coding theory, forward error correction or channel coding is a technique used for controlling errors in data transmission over unreliable or noisy communication channels....
and demodulation standard for satellite television
Satellite television
Satellite television is television programming delivered by the means of communications satellite and received by an outdoor antenna, usually a parabolic mirror generally referred to as a satellite dish, and as far as household usage is concerned, a satellite receiver either in the form of an...
and dates from 1994, in its first release, while development lasted from 1993 to 1997. The first application was commercially available in France via Canal+
Canal+
Canal+ is a French premium pay television channel launched in 1984. It is 80% owned by the Canal+ Group, which in turn is owned by Vivendi SA. The channel broadcasts several kinds of programming, mostly encrypted...
, enabling digitally broadcast, satellite-delivered television to the public.
It is used via satellites serving every continent of the world. DVB-S is used in both multiple channel per carrier (MCPC) and SCPC
Single channel per carrier
Single channel per carrier refers to using a single signal at a given frequency and bandwidth. Most often, this is used on broadcast satellites to indicate that radio stations are not multiplexed as subcarriers onto a single video carrier, but instead independently share a transponder...
modes for broadcast network
Broadcast network
A broadcast network is an organization, such as a corporation or other voluntary association, that provides live television or recorded content, such as movies, newscasts, sports, Public affairs programming, and other television programs for broadcast over a group of radio stations or television...
feeds, as well as for direct broadcast satellite
Direct broadcast satellite
Direct broadcast satellite is a term used to refer to satellite television broadcasts intended for home reception.A designation broader than DBS would be direct-to-home signals, or DTH. This has initially distinguished the transmissions directly intended for home viewers from cable television...
services like Sky Digital
Sky Digital (UK & Ireland)
Sky is the brand name for British Sky Broadcasting's digital satellite television and radio service, transmitted from SES Astra satellites located at 28.2° east and Eutelsat's Eurobird 1 satellite at 28.5°E. The service was originally launched as Sky Digital, distinguishing it from the original...
(UK) via Astra
SES Astra
Astra is the name for the geostationary communication satellites, both individually and as a group, which are owned and operated by SES S.A., a global satellite operator based in Betzdorf, in eastern Luxembourg. The name is sometimes also used to describe the channels broadcasting from these...
in Europe, Dish Network
Dish Network
Dish Network Corporation is the second largest pay TV provider in the United States, providing direct broadcast satellite service—including satellite television, audio programming, and interactive television services—to 14.337 million commercial and residential customers in the United States. Dish...
and Globecast in the U.S. and Bell TV in Canada
Canada
Canada is a North American country consisting of ten provinces and three territories. Located in the northern part of the continent, it extends from the Atlantic Ocean in the east to the Pacific Ocean in the west, and northward into the Arctic Ocean...
.
While the actual DVB-S standard only specifies physical link characteristics and framing, the overlaid transport stream delivered by DVB-S is mandated as MPEG-2, known as MPEG transport stream (MPEG-TS).
Some amateur television
Amateur television
Amateur television is the transmission of Broadcast quality video and audio over the wide range of frequencies of allocated for Radio amateur use. ATV is used for non-commercial experimentation, pleasure and public service events...
repeaters also use this mode in the amateur band.
External links
- ETSI DVB-S
- DVB-S TR 101 198 V1.1.1 (09/97) Implementation of Binary Phase Shift Keying (BPSK) modulation in DVB satellite transmission systems
- DVB-S EN 300 421 V1.1.2 (08/97) Framing structure, channel coding and modulation for 11/12 GHz satellite services