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| DTH Services » Glossary |
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Glossary |
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Downconverter - The downconverter receives the amplified broadband satellite signal from the LNA and converts it into a lower frequency(lower frequencies) which can be used efficiently by the receiver.
The downconverter in older satellite systems actually rejects the signals from all of the transponders except one and converts this one-transponder signal into an intermediate frequency (IF) for use by the remainder of the receiver circuits. It might be compared to the mixer and IF stages of a TV receiver or radio..
The block downconverter in later satellite receivers converts the broadband signal received from the LNA into a block of frequencies which can be used by a receiver. The receiver receives the whole block of frequencies and tunes in the desired transponder's signal while tuning out the remaining signal. This arrangement makes it possible for multiple receivers to be served by the same dish, each receiver selecting the desired transponder.
Downlink - a satellite receiving system designed to receive signals from orbiting communications satellites.
DSS - Digital Satellite System
DTHDTH, or Direct-To-Home, is the official term used by the Federal Communications Commission to refer to the satellite television and broadcasting industries
Dual LNB Dolby Digital - A dual LNB has two coax connections. You can operate up to two satellite television receivers with a dual LNB.
DVR - Digital Video Recorder Receivers with a built in hard disk for recording programming with great audio and video quality. The first hard disk receivers were called PVR's.
Electronic Program Guide (EPG)A chronological listing of all available programming covering an extended time period (typically 36 hours or more). This listing displays on your TV screen.
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