Bang & Olufsen DVB-S - User Guide - Manual (Page 17)

Glossary
Allows user to set a password to control access to programmes
based on channel, rating (based on the motion picture rating
system) or content.
A system for restricting access to a particular service to
authorised users only (e.g. subscribers to a particular digital
bouquet, purchasers of individual pay-per-view events), by
means of encryption and authorised decoding.
Decrypting and descrambling module that acts as card reader for
Smart Cards.
The DiSEqC switch enables the user to select one LNB signal
between different LNBs. The input ports are connected to up to
four LNBs, which may be on four different dishes, and the
output marked OUT is connected to the receiver.
Broadcast standard for digital radio and television, using MPEG II
compression.
Digital Video Broadcasting: A coherent set of European
standards for transmission and reception of digital television
signals. Although European, the standards have been adopted in
many countries worldwide. There are many standards within the
DVB family, including specifi cations for satellite (DVB-S), cable
(DVB-C) and terrestrial (DVB-T) transmission and reception.
Physical quantity, indicates the number of cycles per second,
measured in Hertz (Hz).
Converts microwave frequency blocks to the intermediate
frequency range covered by the tuner.
For better utilisation of the available frequency bands, the
satellites transmit adjacent programmes, with opposite
polarisation (horizontal and vertical). Reception of both
horizontal and vertical polarisation is covered by the universal
LNB.
This interactive feature allows the user to access and scroll
through complete program listings covering now and next
programs on the television screen.
Term Explanation
Access Control
Conditional Access
Conditional Access Module
(CA Module)
DiSEqC switch
DVB – Digital Video Broadcasting
DVB-S – Digital Video
Broadcasting- Satellite
Frequency
LNB (Low Noise Block down-
Converter)
Polarisation
Program Guide
17