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ADSL |
Asymmetric Digital Subscriber Line - Broadband |
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Analogue |
Mode of transmission, uses standard wave to transmit television services. |
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AV |
Audio Visual. |
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Basic Installation |
Supply and connection of product needed to watch television. |
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CCTV |
Closed Circuit Television. |
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Communal System |
Where a signal is distributed through a building (e.g. a block of flats) using a wiring system, sharing the same signal source. (MDU). |
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CAM |
Conditional Access Module method of blocking access to programming, access only being allowed with the correct codes or card to "unlock" the programming (pay per view channels). |
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Coverage |
Description of areas that can receive digital television - you can check your DTT coverage using the postcode database. |
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CRT |
Cathode Ray Tube. |
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DAB |
Digital Audio Broadcast. |
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Decoder |
The tuner in a digital set. |
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Digital Switchover /Switchover |
The process of migrating television from analogue reception to digital reception. The migration of systems. |
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DLP |
Digital Light Projector. |
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Downstreaming |
Streaming video via the internet. |
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DSL (ADSL / xDSL) |
Digital subscriber Line, a method of delivering TV or broadband, or Video on Demand through telephone wires. |
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DTH |
Direct To Home, single dwelling digital satellite installation. |
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DTT |
Digital Terrestrial Television. |
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DTV |
Digital Television. |
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DVD |
Digital Video Disc. |
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DVR |
Digital Video Recorder. |
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DVB |
Digital Video Broadcasting, a European standard for digital television technology. |
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DVD |
Digital Versatile Disc - digital storage device commonly
used for film. |
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DVD-R (DVD-RW) |
Recordable DVD, another digital recording device - uses DVD format. |
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Encryption |
Method of encoding data/broadcasts that means they can only be viewed with the correct Conditional Access codes. |
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EPG |
Electronic Programme Guide “now and next” information that can be called up on digital television. |
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FM |
Frequency Modulation. |
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Future proofing |
Ensuring fitted audio visual installations are capable of handling future technological advances. Anticipating those advances. |
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HDTV |
High Definition Television, television providing pictures up to 4 times clearer than traditional pictures. |
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High End System |
Advanced, specifically designed system designed to meet customer need, professionally installed and supported. |
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IdTV |
Integrated Digital Television, a television with a built in digital tuner. |
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IdVCR |
Integrated Digital VCR, a video recorder with
A built in digital tuner. |
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Installation |
Entire package, intellectual advice to physical product and the act of fitting “installing” into customer’s property. |
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Internal AV equipment |
Television, DVD, DVR, video, surround sound, games machines. |
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IPTV |
Internet Provider Television. |
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IRS |
Integrated reception System, a shared reception system, common to flats and hotels that enables delivery of television, radio, and internet services around the same distribution system. |
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Interactive |
Services that enable the viewer to access additional programme functions and “interact” with the programme. |
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LCD |
Liquid Crystal Display. |
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LNB |
Low Noise Blocker. |
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MATV |
Master Antennae TV - a communal aerial system that uses a master aerial to receive the signal before it is distributed. |
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MDU |
Multi Dwelling Unit, flats. |
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Multiplex |
A bundle of channels delivered in Digital Terrestrial Television by a single signal channel. |
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Peripherals |
Internal cabling, switches, splitters, integrated control systems, speakers. |
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PVR |
Personal Video Recorder, a Video recorder that records programmes to hard drive. Allows much greater flexibility in record and playback. |
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Platform |
Term for the method of delivery or reception of digital television (e.g. the satellite platform). |
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PSB |
Public Service Broadcasters these include BBC, ITV,
Channel 4, Five, S4C and Teletext. |
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RF Loop |
Connection that allows the aerial signal to connect to one device, and then be connected further by another connector - similar to an "aerial out" socket. |
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RF Modulator |
The "aerial out" connector on your TV is an RF modulator. This puts an output from a TV tuner onto the connection, as opposed top an RF loop - which simply allows the signal from the aerial to carry through. |
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RoHS |
Restriction of use of certain Hazardous Substances (EU directive for consumer electronic equipment). |
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SCART |
A type of connection and cabling used to carry video signals, usually found on the back of TVs and videos. |
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SMATV |
Satellite Master Antenna Television providing satellite and terrestrial channels to multiple points using a channelised system. |
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Spectrum |
The electromagnetic spectrum, a set of radio frequencies used to transmit television, radio and other forms of electronic communication. |
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STB |
Set Top Box. |
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System |
That which is involved in television viewing from satellite dish through to surround sound. |
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Terrestrial |
Television services that can be received through an aerial. |
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Triple Play |
Convergence of DTT, Digital satellite, and IPTV. |
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VCR |
Video Cassette Recorder. |
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VDSL |
An xDSL technology that has faster downstream speeds than ADSL, enabling video services to be delivered. |
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VOD |
Video on Demand. |
