15. Glossary
EPG (Electronic Programme Guide)
An electronic equivalent to a printed television listings magazine; it is an application used with digital
Frequency
The property of a signal measured in cycles per second (=Hz).
Hi-Fi (High Fidelity)
The characteristics of audio devices that can play back all the audio frequencies a person can detect, which is the range of 16Hz#20KHz. Sometimes it is used to indicate good quality of audio devices such as stereo tape recorders.
OSD (On Screen Display)
OSD displays the basic information necessary for the users to configure monitor or TV settings. OSD information may include brightness, contrast, tuning, RGB adjustment, and screen size and position.
OTA (Over the Air) or OAD (Over Aerial Download)
A standard for the transmission of software for equipment, through a broadcast system. Manufacturers reserve the right for deciding the release of the software for their products.
SCART
A
S/PDIF (Sony/Philips Digital Interface format)
A standard format for the transfer of digital audio signals. It allows the transfer of digital audio between two devices without any conversion to and from analogue, which could degrade the signal quality.
Smartcard
A credit card sized card that contains updateable chip memory. It is used for accessing Pay TV (encrypted) channel or services when inserted into an appropriate receiver.
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