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ATTACHMENT A - GLOSSARY OF TERMS
CA - Conditional Access – a coding system
used in order to protect transmitted data
against
unauthorised
protected
channels
subscribers.
CAM - Conditional Access Module – an
electronic device,
slots,
that allows access to coded pay-per-
view channels on a receiver equipped with a
CI socket.
CI - Common Interface – CI sockets of
digital receivers are used for the installation
of CAM conditional access modules, and thus
allow
you
to
view
channels through these modules.
DVB-S
the
Digital
standard that defines modulation and error
correction in satellite transmissions. In DVB-
S,
both the MCPC and SCPC modes can be
used by the operator to transmit channels.
MPEG-2 is used as the transport stream.
Guide - Electronic Programme Guide – a
service that displays detailed information
about current and future programmes on the
television screen.
FTA - Free-to-air – uuencoded radio and
television channels that may be received on
any television set.
LNB - low-noise block converter – a
converter - it converts satellite signals, and
then sends them to the tuner through a
coaxial cable. The basic parameters are: gain,
noise factor and power consumption.
MCPC - multiple channels per carrier –
more than one signal (channel) is transmitted
on a given frequency (transponder). All of
these
channels
stream,
which
frequency following modulation.
Monoblock – a device that comprises two
converters and a DiSEqC switch in a single
housing,
which receives signals from two
satellites on similar orbits.
41
access.
Access
is
available
usually fitted with card
coded
pay-per-view
Video
Broadcasting
comprise
a
single
is
transmitted
Pay-TV – Pay-per-view digital television, to
which only subscribers have access. The
service is provided by satellite, cable, over
to
the ground or through the network.
only
to
SCPC - Single channel per carrier – only one
signal (channel) is transmitted over a given
frequency (transponder).
STB - Set-top box – an electronic device
connected to the television set,
processes
ground-based,
antenna. It enables the playback of video and
sound.
TP - Transponder – a type of wireless
communication device (transmitter),
automatically
strengthens and responds to a signal coming
in real time over a specific frequency. The
term is derived from the words "transmitter"
and "responder". Usually,
transmits
channels.
DiSEqC - (Digital Satellite Equipment
Control) a communication protocol,
between a satellite receiver and equipment
such as switches or positioners,
supports switching between television signal
sources and antenna control.
USALS – (Universal Satellites Automatic
Location
protocol used between satellite receivers and
positioners,
control the positioner through the receiver.
Used in connection with the DiSEqC 1.2
protocol.
data
on
one
the
signal
received
cable or network satellite
receives,
each transponder
numerous
compressed
System)
–
a
which makes it possible to
which
from
the
which
modulates,
digital
used
which
communication
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