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18th May 2008

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Term

Description

Access Radio

A pilot scheme running from 2002 to test how viable “not for profit” radio is for the UK. 15 stations form the initial trial

More details: www.ofcom.org.uk

CAM CAM stands for Conditional Access Module. Some Freeview set-top boxes have a CAM slot, which means that you can plug a CAM adapter into this slot, and then plug a TopUp TV subscription card into the CAM adapter slot, to get to the extra channels offered to Top Up TV subscribers. See our Top Up TV FAQ

DAB

Digital Audio Broadcasting. National, regional and local radio stations that can only be received by special DAB radio receivers. 

More details: DAB page

DTT

Digital Terrestrial Television. This refers to digital TV that can be received on a standard TV aerial (as opposed to cable or satellite). In the UK, Freeview (formerly onDigital and ITV Digital), operates DTT services

More details: Freeview page, Digital TV

Ensemble A digital radio (DAB) term for a collection of radio channels on a single frequency. See Multiplex, below
EPG Electronic Programme Guide - Associated with a digital TV set-top box, this refers to built-in software rgar provides an onscreen channel listing / viewing programme guide
HDTV HDTV offers higher-quality TV pictures. Already available in the US and Japan, High Definition TV has been slow to take off in Europe, and is currently only available on the digital satellite platform. For details, see the Quali-tv site.
For details of a recent announcement by the BBC on this subject, see the Digital Spy story.

ID

Ident or jingle

IDTV Integrated Digital TV - TV set with built-in digital TV receiver. Receive Freeview without a seperate set-top box

IRN

Independent Radio News. News organisation that make national news bulletins, news copy and audio available to UK commercial radio stations.

More details: www.irn.co.uk

Interactive BBC InteractiveIn the context of digital TV, many TV channel providers supply digital interactive content that is available via the red button on your digital remote control. The content available can include access to digital teletext, games, additional information on programmes, online voting, shopping and competitions. BBC digital channels contain a fair amount of interactive content, including the ability to access video and text news headlines, and extra services and information to support their TV shows.

Intro

Introduction. In the case of a song, the period of time from a song’s start to the moment the vocals (singing) starts

ISDN

Integrated Services Digital Networks

A digital phone line. Commonly used to send data via a modem. Used in radio to send high-quality voice (such as news reports, voice-overs for commercials, or for travel news)

Liner

A scripted link or slogan, used to keep the station’s on-air sound standard

MCPS

Mechanical Copyright Protection Society. Body that collects royalties in respect of music played by radio stations, specifically jingles and music used in adverts

More details: www.mcps.co.uk

Multiplex (MUX)

A Multiplex (abbreviated to MUX) is a term to describe a single broadcast frequency that contains multiple compressed channels. No clearer? OK, an example: When you receive normal BBC1, you are tuning in to a single frequency in the UHF range 21-65. Also in this range are the other main TV channels (ITV, Ch4, etc). Digital TV (Freeview) has a collection of frequencies too, but rather than each frequency carrying one TV channel, it contains lots (normally around 8). These are all 'multiplexed' together into one frequency, and you need a special decoder to 'undo' this multiplexing.

  • TV: If you are a Freeview user and find that there are groups of channels that you can't get, it probably means that you're having a problem with one or two multiplexes. There are six multiplexes in use for Freeview, known as 1, 2, A, B, C and D. A list of what's on each multiplex can be found on the DTG site. For reception help, see our Freeview FAQ
  • Radio: For a list of digital radio channels, on each multiples, try the Wornot site. Note that the term 'ensemble' is commonly used in digital radio - effectively, it's it's a multiplex. For more on DAB Digital Rdaio, see our DAB section

OB

Outside Broadcast

Obit

Obituary. Procedure to be put in place in the event of local, national or international emergency, or the death of certain eminent or much loved figures, including some members of the British Royal Family

Ofcom

Office of Communication. TV and Radio regulators (Formerly ITC, the Radio Authority, the Radiocommunications Agency and Broadcasting Standards Commission). Responsible for TV and Radio fairness and standards.

More details: www.ofcom.org.uk

PFL

Pre-fade Listen. Facility on a mixing desk that allows the operator to listen to a piece of audio and set levels before putting the audio to air. Also referred to as ‘cue’

PPL

Phonographic Performance Ltd. Body that collects royalties in respect of music played by radio stations on behalf of record companies

More details: www.ppluk.com

PPM

Peak Program Meter. Meters on a mixing desk that monitor audio levels

PRS

Performing Rights Society. Body that collects royalties in respect of music played by radio stations for artists and composers

More details: www.prs.co.uk/broadcasters

RDS

Radio Data System. Text and other services transmitted by a radio station for use on radios supporting RDS. Features include travel news announcement (TA), display of station name (PS), alternate frequency(AF) and radiotext

More details: RDS info page

RF Loopthrough

Commonly associated with set-top boxes or video recorders. RF stands for Radio Frequency, and means that, in the case of a TV signal, it's transmitted on a TV frequency ('channel').

The image to the right shows an RF connector, known as a co-ax plug. A set-top box with an RF loopthrough means that there's an "in" and and "out" co-ax aerial socket, so that a TV signal can go into the box, and then come out again to feed off another piece of equipment, such as a video recorder, regardless of whether the set-top box is switched on or off.

RF Modulator Commonly associated with set-top boxes, or video equipment that you want to connect to a TV using a TV channel, as opposed to a "line in" / AV connector. If you're trying to connect some equipment to a TV or video that doesn't have a SCART, the equipment will need to have a 'modulated' output (check the equipment's manual if you're not sure it has a modulator).

A 'Modulated RF output' indicates that a piece of video equipment (set-top box, DVD player, etc) can 're-broadcast' it's output onto a TV channel, so that your TV set can 'tune in' to the signal in the same way as you can tune your TV set into a certain channel. Effectively, you can choose which channel your set-top box appears on, so that it doesn't clash with other channels. A common for a modulator is if you're trying to connect a DVD player with a SCART socket into a TV set that only has an aerial socket. For this to work, you'd need a modulator that can take the signal from a SCART socket "line in", and convert it such that if you plug an aerial from the TV to the modulator, you can tune your TV into the converted output of the DVD. See our FAQ page for details of using a modulator.
RGB RGB stands for 'Red, Green, Blue' - the primary colours used to make up a TV picture. On this site, it's commonly used when referring to outputs from a set-top box into a TV. All TVs can cope with what's referred to as a 'composite' signal, but RGB is generally regarded as superior to a composite signal. It's more noticeable on when displaying an onscreen menu - you'll notice sharper edges and a better definition. If using equipment that supports RGB, you'll need an RGB SCART cable, connected to a TV that has an RGB SCART socket. It's normally possible to switch between RGB and Composite on your TV, so you can judge what's best. For more technical information on RGB and Composite, see the SyncBlaster FAQ.

ROT

Record Off Transmission. A recording of what was transmitted on-air

RAJAR

Radio Joint Audience Research. Body that conduct research into radio listening in the UK, providing audience statistics

More details: www.rajar.co.uk

RSL

Restricted Service License – Short-term license issued by OfCom (formerly The Radio Authority). Normally low-power for 28 days or less

SCART SCART plugA SCART connector is something you'll find on more modern TV, video, DVD and games units - They have 21 pins, and carry audio, video, switching commands and an earth. If you have a lot of video connectors, you may need a switch box, to handle multiple SCART sockets. These can be manually switched, automatically-switching or remote controlled SCART switchers. For more help with SCARTs, see our TV FAQ page

Segue

The linking of two bits of audio together seamlessly on-air

Setpal SetPal is a trademarked technology used in some Freeview receivers. It's software designed for digital tv receivers that handles reception, menus, digital teletext, etc. For more details, see the SetPal site.
STB

Standing for 'Set-top Box', this refers to a digital TV receiver that adds extra channels to your TV. The following types of Set-top boxes are common in the UK

For more, see our Digital TV page.

VO

Voice-over. Presenter or actor reading a script


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