Nokia MEDIAMASTER 211S, Руководство пользователя

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GB 37
Glossary of terms
AC-3
A multichannel digital audio encoding system.
Access
Access to options in the Settings folder is protected by
an access code. In addition, parents may lock individual
programmes using the channel editing function.
Access code
A four-digit code stored in the Mediamaster. It is used to
lock/unlock the Mediamaster, folders and programmes.
AGC
Automatic Gain Control.
AUX
Auxiliary.
A port for auxiliary devices.
BER
Bit Error Rate. A signal quality measure.
C/N
Carrier to Noise. A signal quality measure
DiSEqC
DiSEqC™ (Digital Satellite Equipment Control) system
which is a communication bus between satellite receiv-
ers and peripheral equipment using only the existing co-
axial cable.
DVB
The Digital Video Broadcast group, which was created
to establish a technical framework for the introduction of
digital video broadcasting systems.
GHz
GigaHertz. The prefix giga means billion, and Hertz
means cycles per second. Signals in the GHz range are
often called microwaves.
Input data rate
The size of the transferred digital packages.
LNB (low-noise block converter) or LNBF
An electronic unit mounted on a satellite dish. It receives
the signals that are reflected by the dish and converts
them to signals that can be used by the Mediamaster.
MHz
MegaHerz. The prefix mega means million, and Hertz
means cycles per second.
MPEG
Moving Picture Experts Group. Established by the Inter-
national Standards Organisation to provide the basis for
a picture coding and compression system.
Multifeed
During Multifeed programmes, you can normally change
between different camera perspectives using the opt
key.
Network
A number of digital channels that are transmitted from
one source. The networks are grouped under separate
headings in the channel list.
PCM
Pulse Code Modulation. Non-compressed digital audio
format.
PCR
Program Clock Reference.
PID
Packet Identifier.
Polarisation
Polarisation allows several programmes to fit into the
same frequency band. The signals from a satellite are
transmitted either with linear (vertical or horizontal) po-
larisation or circular (right or left) polarisation.
RCA
A coaxial connector used to connect the Mediamaster to
an external amplifier.
RF
Radio frequency (known as HF in some countries).
RGB
Red, Green, Blue. Colour signals are routed through
separate cables in order to provide a high-quality TV pic-
ture.
RS 232
A serial communication standard data port.
SatScan
SatScan is a one-cable positioning system, allowing re-
ception of 29 different preprogrammed satellite positions
within a range of
± 60 degrees.
SCART
A 21-pin connector used for connecting the Media-
master, VCR and TV. Also named Euroconnector or
Peritel connector.
Scrambled TV programme
Some TV programmes are transmitted in scrambled
form.
Service provider
A company that provides programmes/services to its
customers.
S/PDIF
Sony/Philips Digital Interface Format. Digital audio output.
Symbol rate
Speed of the digital transmission
SW
Software. Programme code.
TS
Transport stream.
VCR
Video Cassette Recorder.