Services for TV/Aerial/Satellite

Hi, we have for each category of service, compiled relevant information that you may find useful.
Please note: All information contained within this section is for guidance only. It is best that you check current sources of information.
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TV / Aerial / Satellite
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Jargon Buster

Areas covered under this Category are as follows:
  • Additional Satellite TV Outlet
  • Additional TV Outlet
  • Cabling
  • CATV
  • Communal Aerial
  • FM Radio Aerial
  • Foreign Language Satellite System
  • Home Cinema
  • Install
  • MATV
  • Relocate a Satellite Dish
  • Remove
  • Repair
  • Servicing
  • Sky Satellite Dish
  • SMATV
  • TV Digital Aerial
  • Video Playback
For this Category

Confederation of Aerial Industries - www.cai.org.uk

Registered Digital Installers Licensing Body (RDI-LB) - www.rdi-lb.tv


  • Screwfix
  • B&Q
  • Wickes
  • Homebase
  • Sky
  • Labgear
  • Triax
  • Technomate
  • Grundig
  • AviLynx

A-B | C-D | E-F | G-H | I-J | K-L | M-N | O-P | Q-R | S-T | U-V | W-X | Y-Z
A to B
  • Amplier: TV/Radio Signal amplifier/booster.
  • Analogue: when a signal is directly represented bypictures and sound, whereas a digital signal codes the pictures and sound into 'computerised' data.
  • Antenna: term for an aerial.
  • Attenuator: reduces Signal Strength.
  • Bandwidth: the range of frequencies used for transmitting a signal.
  • Booster: TV/Radio Signal amplifier/booster.
  • Broadband: Refers to a system that can carry signals over a wide range of frequencies.
  • Bandwidth: the wider the bandwidth, the more information that can be carried..
C to D
  • CATV (Community Aerial TV): covering a set Neighbourhood/Town/City/County.
  • Coax coupler: used to join together 2 Coax Plugs.
  • Coaxial cable: aerial lead to appliance.
  • Combiner: combines two or more aerial leads into one single aerial (coaxial) lead.
  • DAB aerial: enhances DAB reception.
  • DAB: Digital Audio broadcast.
  • Decoder: device that unscrambles digital signals and turns them back into sound and pictures. It may come as a set-top box, or be built into a TV set or PVR.
  • Digibox: way of referring to a digital set-top box.
  • Digital aerial: capable of receiving the new digital signal, providing more channels and enhanced services for the UK.
  • Diplexer: combines two or more aerial leads into one single aerial (coaxial) lead.
  • Dipole: this element connects to the aerial downlead, receiving signals from the director and reflector elements.
  • Director element: forward of the dipole, these are a series of tuned elements.
  • Distribution amplier: when sending signals to two or more TV's or Radio, this is the signal booster.
  • DLP (Digital light processing): a technology used in rear-projection flat-panel TV screens.
  • DOG (Digital on-screen graphic): a channel identification logo, usually seen in the top left-hand corner of the TV screen.
  • Downlead: this is the cable which connects the aerial or dish to TV, radio or set top box.
  • Dsat (D-SAT): digital satellite: digital TV received via a satellite dish.
E to F
  • Ensemable: digital radio term for a single frequency that contains a number of radio channels.
  • F connector: terminates coaxial cable for insertion to appliance.
  • F coupler: enables 2 f connectors to be joined.
  • FM aerial: boosts FM radio reception.
  • FTA: a programme or service that you don't need to pay a subscription to receive.
G to H
  • Ghosting: repeat image(s) on analogue TV sets, caused by a reflected signal.
  • Grid aerial: a TV aerial with 2 or more dipoles and a grid reflector.
  • Grouped aerial: a TV aerial that will receive a segment of UHF (terrestrial TV) channels.
  • HDMI (High-definition multimedia interface): digital connection using a single cable for high-quality video and audio.
I to J
  • IRS (Integrated Reception System): system providing UHF, Sky and radio, which also enables connection of individual Sky boxes.
K to L
  • LNB - Quad: this is a dish mounted device, which converts Sky signals to send the reception through to multiple (2 - 4) Sky boxes via the Coaxial (Aerial) cable.
  • LNB - Quattro: this is a dish mounted device, which converts Sky signals to send the reception through to multiple switches.
  • LNB - Solo: this is a dish mounted device, which converts Sky signals to send the reception through to a single Sky box via the Coaxial (Aerial) cable.
  • Loft mount: internal aerial mounting.
M to N
  • Magic eye: device which the Sky box can be controlled from another room.
  • MATV (Master Aerial TV): a UHF (terrestrial TV) reception distribution system.
  • Multi-switch: one Sky dish receives the signal for multiple Sky boxes, usually used in apartment buildings & hotels.
  • Multiplexer (MUX): this is where groups of Freeview channels are broadcast on a single UHF channel. This is known as a multiplexer.
O to P
  • Pixel: short for picture element - a single dot on a TV screen (or computer screen or digital photo). Thousands of pixels make up the picture, and the more pixels the better the picture. High-definition TV has up to four times as many pixels as standard-definition TV.
  • Pixellating: caused by a defective signal which produces a mosaic or frozen image on the screen.
  • Polarity: the UHF signal is transmitted on either horizontal or vertical polarities.
  • PPV Pay-per-view): an individual programme or series that you pay to receive.
  • Pre-amplifier: the signal booster is installed directly on the aerial, with a power supply unit which is required.
  • PSU: this converts the mains voltage to 12v, and is used to energise the pre-amplifier via the downlead.
Q to R
  • Reflector element: rear element of an aerial.
  • RF (Radio frequency): an RF connector is used to feed a TV signal from an aerial to a TV, video recorder, etc.
S to T
  • SCART: the type of connector most commonly used to connect TVs, video recorders, DVD players and set-top boxes.
  • Set back amplier: sits next to the TV and boosts TV reception signal.
  • Set top box: sits on top of the TV set - usually a Sky box, Freeview box, DVD player or VCR.
  • Smart card: also called a viewing card: a plastic card inserted into a slot in a set-top box or TV that decodes signals and allows you to receive digital services such as Sky and Top Up TV Anytime.
  • SMATV (Satellite Master Aerial TV): Sky/UHF reception distribution system.
  • Splitter: splits signal to two or more TV's.
  • Tetra filter: blocks interference from Tetra transmissions.
  • Top-up TV: Pay as you view Digital TV.
U to V
  • UHF: terrestrial TV reception.
  • VHF: Frequency bands 1, 2 & 3. Part of Band 3 is now used for DAB.
W to X
  • Wideband aerial: TV aerial used to receive UHF channels 21-68.
Y to Z
  • Yagi: TV aerial that has a dipole, director and reflector elements.