Communications satellites

 

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HOTBIRD relays TV around the world
Credit: EADS Astrium

Communications satellites are relay stations in space. They bounce telephone calls, television pictures or internet data from one place on Earth to another.

Satellite communication (satcom) has made the massive growth in digital TV broadcasting, global mobile telephony, internet traffic and other broadband services possible. In the long run, it should bring fast and affordable telecoms to urban and rural communities worldwide.

The UK is one of the world's leading manufacturers of communications satellites and a major developer of new satcom applications. It is also home to both the world's most successful satellite TV broadcaster and the world's largest global satellite communications provider.

UK involvement encompasses:

  • broadcast radio, television and high definition television (HDTV) across Europe, Africa and the Middle East from HOTBIRD
  • secure multimedia communications for the UK Government and UK and allied forces with the Skynet 5 constellation 
  • broadband for remote communities with the Highly Adaptable Satellite (HYLAS)
  • the giant Inmarsat global communications satellites and its B-GAN system
  • the forthcoming, low-cost, highly-advanced Alphasat payload

ARTES

The Advanced Research into Telecommunication System (ARTES) programme provides the main vehicle within the European Space Agency (ESA) to support development of satcoms. UK participation in ARTES has led to a thriving UK communications technology sector, achieving a number of important commercial successes and export orders.

Watch these videos to find out some of the ways in which satcoms help people communicate.

Satellite technology has transformed TV. The Government harnesses this technology to inform as well as entertain.

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In 2005 British yachtswoman Ellen MacArthur sailed single-handed around the world in record-breaking time. Satcoms contributed to her success.

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Page last updated: 24 February 2010 by BNSC