Find out what the ABCs of Digital TV mean in a brief glossary of the technology.
Analogue is a type of signal which transmits sounds and pictures as a continuous wave. Analogue technology is being replaced worldwide by digital technology.
Broadcast Frequency is the set of radio air-waves used to transmit television, radio and other forms of electronic communication.
Digital Receiver/Set-top Box is a piece of digital equipment that receives and decodes digital TV signals for display on the television. When connected to an analogue TV set, it converts the signal for display on the analogue TV.
Digital TV is an advanced broadcasting technology that enables broadcasters to transmit TV programmes with better pictures, sound and interactivity. Digital TV supports two formats, namely Standard Definition (SD) and High Definition (HD).
Digital Switchover refers to the phasing out of Mediacorp’s analogue TV signals, which would be replaced by digital TV signals.
Digital Video Broadcasting (DVB) is suite of open technical standards for the global delivery of digital television and data services developed by the DVB Project, an industry-led consortium of over 200 broadcasters, manufacturers, network operators, software developers, regulatory bodies and others in over 35 countries.
DVB-T (Digital Video Broadcasting – Terrestrial) is a technical standard, developed by the DVB Project, that specifies the framing structure, channel coding and modulation for digital terrestrial television broadcasting. The first version of the standard was published in March 1997 and in the twelve years since then it has become the most widely adopted DTT system in the world.
DVB-T2 (Digital Video Broadcasting – Second Generation Terrestrial) is the second and latest generation of the DVB-T standard. It offers higher efficiency, robustness and flexibility, enabling efficient use of valuable spectrum for the delivery of audio, video and data services to fixed, portable and mobile devices.
Electronic Programme Guide (EPG) is an electronic version of the printed television program guide.
Free–to-air (FTA) TV refers to Mediacorp’s seven TV channels (i.e. Channel 5, Channel 8, Suria, Vasantham, Channel NewsAsia, okto, and Channel U) which are delivered free over-the-air.
High Definition (HD) is a format of digital TV which gives higher picture quality. HDTV has a screen resolution of 1920 (horizontal) by 1080 (vertical) pixels and 16:9 aspect ratio. The picture resolution of a HDTV signal is approximately five times sharper than an SDTV signal.
Pay TV refers to subscription-based TV services provided by pay TV operators – StarHub TV and Singtel TV.
Simulcast is a period where both analogue and digital Free-To-Air TV signals are being transmitted by Mediacorp. This gives households sufficient time to acquire the equipment necessary for receiving digital FTA TV.
Standard Definition (SD) is a format of digital TV which has a screen resolution of 720 (horizontal) by 576 (vertical) pixels and 4:3 aspect ratio. SD has less resolution than HD.