9 Technical terms
Aerial cable:
The connecting cable used between the aerial output on the receiver and the aerial input on
the TV, which enables analog TV programmes to be received by the TV.
AV:
see SCART
MPEG1/MPEG2 data compression:
A digital data package of 216 Mbits/s is needed to transmit current TV standards (625 lines
and 50 Hz screen repition frequeny).
This would require bandwidths that are neither available terrestrially nor by satellite.
Therefore data quantity reduction is realised by data reduction. MPEG-2 is defined for use in
Europe, as it is the data compression standard used throughout the world. MPEG2 is an
extension of MPEG1
DVB:
Digital Video Broadcasting: A digital, universal transmission technology used for images,
graphics, sound and text, as well as data in any conceivable form and in any possible and
measurred quality.
DVB-T receiver:
The signal received from the aerial cannot be processed by the TV. It has to be prepared in
the DVB-T recceiver so that a the audio and video signals (AV) are made available to be
passed on to the TV.
Frequency:
Physical size that gives the number of oscillations per second; the unit use is a Hertz (Hz)
Channel:
Part of a frequency band, which is set according to a specific allocation procedure. A TV
channel consists of two frequencies, one for visual content and one for audio content. Each
channel is identified by a numeric code (with the exception of the European television
channels, which are transmitted in the 40 / 230 MHz frequency band and which are identified
by letters).
HDCP
Abbreviation for
H
igh
D
efinition
C
ontent
P
rotection
HDMI
Abbreviation for
H
igh
D
efinition
M
edia
I
nterface
Co-axial cable:
Connecting cable used to connect the aerial to the receiver so that the received signal can
be transferred.
Mode:
Defines whether a mono or stereo programme will be received.
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