TechniSat MultyMedia TS 1, Руководство по эксплуатации

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10 Technical Terms
Antenna cable:
Cable connection between the modulator of the satellite recei-
ver and the antenna input of the television set. Used as an
alternative where no SCART socket is available
AV: see SCART
Co-axial cable:
Connection cable between LNB and satellite receiver,as well
as between the DVB-T antenna and the receiver, to transmit
the signals received, and to provide electrical current to the
LNBs and to the DVB-T antenna.
Channel:
Part of a frequency band,allocated according to a specific
splitting procedure. A TV channel consists of two frequnecies,
one for the visual and one for the audio content. Each chan-
nel is described in terms of a numeric abbreviation (with the
exception of European television channels, which are broad-
cast in the 40-230 MHz frequency band, and are designated
by letters).
Data compression/MPEG1/MPEG2:
To transmit the current television standard (625 lines and 50
Hz image refreshing frequency), one arrives at a digital data
volume of 216 MBit/s.
This would require bandwidth that is not available for either
terrestrial or satellite transmission. Therefore, the data is
reduced to decrease the volume of data. For Europe, MPEG-
2 has been determined as the international standard for data
compression. MPEG2 is an expansion of MPEG1
DiSEqC:
Di
gital S atellite Eq uipment C ontrol: a digital controlling/swit-
ching signal for controlling DiSEqC-compatible components of
the external installation via the antenna cable. An example of
how an installation consisting of DiSEqC components could
be constructed is shown in
(Fig. 10-1) .
DVB:
Digital Video Broadcasting: a universal digital broadcasting
technology suitable for pictures, graphics, sound and text,
thus for data in any shape or form, and in all possible levels
of quality, always appropriate for the content.
DVB-T Receiver: see Receiver
External unit or installation:
Description used for the entire system of components located
outdoors, consisting of the parabolic/offset dish as well as
one or more LNBs used to receive signals from one or seve-
ral satellites.
Frequency:
Physical measurement, indicates the number of oscillations
per second. The unit of measurement is the Hertz (Hz)
Unit
Description Oscillations per second
74
A B
Position
Output
g
A B
Output
Ausgang
A B
Option
Output
(Fig. 10-1)
Example:
BED_AN_Multymedia_TS1 2Q4eng 29.03.2006 10:41 Uhr Seite 74