Technical Terms - TechniSat DiGYBOXX T4 Instrucciones De Funcionamiento

9 Technical Terms

Antenna cable:
Connection cable between the antenna output on the receiver and the antenna input on the
television for the purpose of receiving analogue television programmes with the television
set.
AV: see SCART
Channel:
Portion of a frequency band that is delivered according to a specific allocation method.
A TV channel consists of two frequencies: one for video, and one for audio. Each channel
is identified by a numeric code (except for European television channels, which are trans-
mitted over the 40-230 MHz frequency band, and that are identified using letters).
Coaxial cable:
Connection cable between the antenna and the receiver, used to carry the incoming signals.
DTT receiver (also known as DVB-T):
The signals that are received from the antenna cannot be processed by the television.
The DTT receiver converts them into audio/video (AV) signals, which are output to the
television for playback.
DVB:
DVB (Digital Video Broadcasting) is a universal method for transmitting image, sound and
text data in digital form (i.e. data in any conceivable form and of any possible quality).
Frequency:
Physical quantity that indicates the number of oscillations per second,
expressed in hertz (Hz).
HDCP:
Abbreviation for High Definition Content Protection
HDMI:
Abbreviation for High Definition Media Interface
Mode:
Indicates whether a mono or stereo programme is being received.
MPEG1/MPEG2 data compression:
Transmitting today's television standard (625 lines and a refresh rate of 50 Hz) in digital form
requires a data transfer rate of 216 MBit/s.
This would require bandwidths that are not available either by terrestrial or satellite transmis-
sion. The data amount is therefore compressed. MPEG-2 is used as the worldwide standard
for data compression for Europe. MPEG2 is an enhancement of the MPEG1 standard.
OSD:
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