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15.Glossary
DiSEqC (Digital Satellite Equipment Control)
A DiSEqC compatible product relies on a switching box which detects the 22kHz tone pulsing rapidly on and off. In this
way, a specially designed product can control numerous LNBs through a DiSEqC switching box.
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EPG(Electronic Programme Guide)
An electronic equivalent to a printed television listings magazine; it is an application used with digital receivers and
digital television sets to list current and scheduled programs that are or will be available on each channel, including a
short summary or commentary for each program. The information supplied in the EPG is sent and updated by the
channel broadcaster.
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FEC (Forward Error Correction)
A technique for error control of data transmission.
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Frequency
The property of a signal measured in cycles per second (=Hz).
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FTA (Free- To-Air)
An unscrambled broadcaster allowing customers to view channels or services without paying any subscription.
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HDMI (High-Definition Multimedia Interface)
An all-digital audio/video interface that supports standard, enhanced, or high-definition video, plus multi-channel digital
audio on a single cable. It transmits all ATSC HDTV standards and supports 8-channel digital audio.
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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 and 20KHz. Sometimes it is used to indicate good quality of audio devices such as stereo tape products.
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LNB (Low Noise Block)
A device that is mounted on an arm facing your satellite dish, focusing on satellite signals. A LNB converts signals
received from satellite to a lower frequency and sends them to a satellite product via coaxial cable.
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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.
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OTA (Over The Air)
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.
15. Glossary
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