Nokia 150T AGC, BER, C/N, DVB, GHz, MHz, PCM, PCR, PID, RCA, RGB, VCR, AC-3, MPEG, SCART, Access, S/PDIF, Network, PIN code, SERIAL RS, Access code, Symbol rate

GLOSSARY OF TERMS

AC-3

Multichannel digital audio encoding system.

Access

Authorisation to use the coding system to purchase / order TV pro- grammes.

Access code

Afour-digit code stored in the Mediamaster. Used to lock/unlock the Mediamaster.

Access control

A feature that allows parents to ”lock” programmes that they consider unsuitable for children. A ”locked” channel or programme can only be ”unlocked” with the special access code.

AGC

Automatic Gain Control.

BER

Bit Error Rate. Signal quality measure.

C/N

Carrier to Noise. Signal quality measure

DVB

The Digital Video Broadcast group was created to establish a technical framework for the introduction of digital video broadcasting systems.

GHz

The prefix giga means milliard, and Hertz means cycles per second. Signals in the GHz range are often called microwaves.

MHz

The prefix mega means million, and Hertz means cycles per sec- ond.

MPEG

Moving Picture Experts Group. Established by the International Standards Organisation to provide the basis for a picture coding and compression system.

Network

A number of digital channels transmitted from one source.

PCM

Pulse Code Modulation. Non-compressed digital audio format.

PCR

Program Clock Reference.

PID

Packet Identifier.

PIN code

Personal Identification Number. A four-digit code stored in the smart card. For PPV (Pay Per View) or other services together with the subscription.

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 21-pin connector used for connecting the Mediamaster,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 collects a number of programmes/services and distributes them to 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.

GB 30