Kathrein UFC 662sw manual Short Technical Guide

SHORT TECHNICAL GUIDE

AC 3

Output for Dolby Digital signal

AV programme pos.

Preferred programme slot on TV set for external connections such as Scart and HDMI

CAM – Conditional Access Module

Decryption decoder, which uses a smart card to decrypt the encrypted radio and TV signals.

CI - Common Interface

Internationally standardised interface for CA modules

Conditional Access (CA) system

Controls user access to services and programmes which are encrypted for reasons of copyright or for commercial reasons.

Data rate

Data bits transmitted per second. Is expressed in kbit/s or Mbit/s. The higher the data rate the better the quality of the transmitted signal.

Data reduction

Compression of video and audio signals. Redundant information is discarded.

Dolby Digital 5.1

Dolby Digital is a sound transmission that allows digital surround sound to be output on a home cinema system.

DVB - Digital Video Broadcasting

DVB-C refers to the transmission method (C = cable, S = satellite, T = terrestrial)

Eb/No ratio

The Eb/No ratio is a measure of the signal to noise ratio of a digital signal. The value is not identical to the C/N value familiar from analogue reception technology. At Eb/No values below 5 dB no reception is normally possible.

FEC

FEC is the abbreviation for Forward Error Correction. A technique for reducing the error rate of data transmission. Additional bits are inserted into the data stream, so that error-correction algorithms can be used on reception. The FEC error rate corresponds to the Viterbi rate.

HDMI - High Definition Multimedia Interface Digital interface for digital video and audio data transmission (preferred for HDTV).

MPEG-2

MPEG is the abbreviation for Moving Picture Experts Group, a working group that formulates internationally applicable standards for the digital compression of video and audio. MPEG-2 has become established as the standard for compression of digital TV signals. MPEG-2 works up to a data rate of 100 Mbit/s.

MPEG-4

A further development of MPEG-2 with even higher data compression, intended for HDTV transmissions.

OSD - On-Screen Display

Displays by the receiver on the TV screen (e.g. main menu)

PAL

Analogue TV standard

Pay TV

Television channels available on subscription (e.g. Sky). Encrypted transmitters which can only be decrypted by using the appropriate smart card. As a rule these services are subscription-only.

PCMCIA

Standard for internal decoder interface for pay-TV

PIN

Personal Identification Number. For this unit the PIN is a 4-digit numeric code which must be entered to unlock the unit to allow access to certain functions and channels.

QAM - Quadrature-Amplitude-Modulation Digital modulation process with phase shift keying, which is used for transmissions in cable networks.

Receivers

Receiver

RGB

Video signal made up of three individual colour signals (red, green, blue)

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