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The free-to-view system contrasts with free-to-air (FTA), in which signals are transmitted in the clear, without encryption, and can be received by anyone with a suitable receiving dish antenna and DVB-compliant receiver (although these services can include proprietary encrypted data services such as an EPG that is only available to reception equipment made for, or authorised by, the FTA ...
How satellite internet works. Satellite Internet generally relies on three primary components: a satellite – historically in geostationary orbit (or GEO) but now increasingly in Low Earth orbit (LEO) or Medium Earth orbit MEO) [20] – a number of ground stations known as gateways that relay Internet data to and from the satellite via radio waves (), and further ground stations to serve each ...
A/97: "Software Data Download Service" (used by UpdateTV for upgrades and software patches in ATSC tuners) A/98: "System Renewability Message Transport" A/99: "Carriage Of Legacy TV Data Services" (for former analog supplemental services that used the vertical blanking interval lines, such as closed captioning and teletext)
European countries have a tradition of most television services being free-to-air. Germany, in particular, receives in excess of 100 digital satellite TV channels free-to-air. Approximately half of the television channels on SES Astra's 19.2° east and 28.2° east satellite positions, and Eutelsat's Hot Bird (13° east) are free-to-air.
The ORBCOMM low Earth orbit (LEO) system was conceived by Orbital Sciences Corporation (Orbital) in the late 1980s. In 1990, Orbital filed the world's first license application with the Federal Communications Commission (FCC) for the operation of a network of small LEO spacecraft [5] to provide global satellite services of commercial messaging and data communications services via the company's ...
DigitalGlobe was an American commercial vendor of space imagery and geospatial content, and operator of civilian remote sensing spacecraft. The company went public on the New York Stock Exchange on 14 May 2009, selling 14.7 million shares at US$19.00 each to raise US$279 million in capital.
Digital Satellite System is the initialism expansion of the DSS digital satellite television transmission system used by DirecTV. Only when digital transmission was introduced did direct broadcast satellite (DBS) television become popular in North America , which has led to both DBS and DSS being used interchangeably to refer to all three ...
DVB-SH ("Digital Video Broadcasting - Satellite services to Handhelds") is a physical layer standard for delivering IP based media content and data to handheld terminals such as mobile phones or PDAs, based on a hybrid satellite/terrestrial downlink and for example a GPRS uplink. The DVB Project published the DVB-SH standard in February 2007. [1]
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