Glossary of terms
Access code
A
Access control
A feature that allows parents to ”lock” programmes that they consider unsuitable for children. A ”locked” chan- nel or programme can only be ”unlocked” with the spe- cial access code.
ADM
Audio Description Module
AGC
Automatic Gain Control.
BER
Bit Error Rate. Signal quality measure.
CI
Common Interface
C/N
Carrier to Noise. Signal quality measure
DVB
The Digital Video Broadcast group was created to estab- lish a technical framework for the introduction of digital video broadcasting systems.
GHz
The prefix giga means billion, and Hertz means cycles per second. Signals in the GHz range are often called micro- waves.
MHz
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.
PCM
Pulse Code Modulation.
PCR
Program Clock Reference.
PID
Packet Identifier.
RCA
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 in separate cables in order to provide a high quality TV picture.
SERIAL RS 232
A serial communication standard data port.
SCART
A
S/PDIF
Sony/Philips digital interface format. Digital audio output.
SW
Software. Programme code.
TS
Transport stream.
VCR
Video Cassette Recorder.
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