The
Definition of
Direct
Broadcast Satellite (DBS)
(Satellite TV)
Direct Broadcast Satellite (DBS) –
(a.k.a. Satellite TV) - DBS
TV is the name for the broadcast delivery system commonly referred
simply as "Satellite TV". It's a satellite communications technology
that allows use of a small (18 inches to 3 feet in diameter) receiver
dish typically put on the consumer's roof, as well as a receiver unit
(a.k.a. decoder, set-top box,)
positioned by a TV so the consumer can receive satellite television
signals from the dish.
DBS has a huge channel capacity. With DBS,
several standard analog television signals are digitally compressed
allowing hundreds of channels to be received (though different
subscription services exist and not every DBS subscriber would get
hundreds of channels.) With special dishes that point to two or
even three positions simultaneously, this number may eventually be
increased to up to 500 channels.
Sky is a major DBS company in the UK. Sky offers the
best Interactive TV. (The UK is the most advanced country in terms of
Interactive
Television.) There are primarily two U.S. DBS providers, DIRECTV and
DISH
Network (EchoStar). DISH, a pioneer in Interactive
Television, offers the best Interactive Television in the US of the
two.
One way to experience
interactivity while watching
satellite TV is to watch it on your PC. First you’ll need to install a
DVB-S
receiver card for your PC. This is assuming the satellite TV service
you
subscribe to uses DVB-S or DVB-S2 for data distribution.
Internet Protocol over
Satellite or IPoS, is the most widely deployed satellite
broadband standard and has become the first global standard for the
industry. The announcement was made by Hughes Network Systems following
the European Telecommunications Standards Institute (ETSI) ratification
of the IPoS air interface standard in February. IPoS was first ratified
early in 2004 by the Telecommunication Industry Association (TIA), the
primary standards body for the telecommunications industry in North
America. Reference
S-DOCSIS (Satellite
- Data Over Cable Service Interface Specification). S-DOCSIS is a
modification of the DOCSIS cable-modem protocol for Internet
transmission over satellite. At least to some extent it can share
development costs with cable providers and others using DOCSIS.
http://www.tech-faq.com/dvb-rcs.shtml
More
Definition(s) of Direct Broadcast
Satellite/Satellite TV:
|
Various
Related Terms
DBS - See Direct Broadcast Satellite above.
DBS
– Digital
Broadcast Satellite.
Dish
Network
- Echostar, the Satellite TV Provider. Dish Network has been an early
provider of Interactive TV in the States and at the time of this
writing, among
the best.
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