bed_anl_DIGITY 1_englisch_4.qxd 21.06.02 13:41 Seite 33
Software Update:
Digital television is a new medium. Apart from improved sound and image quality, it also pro- vides the facility for interactive services. These new services are continually being developed and improved by programme providers. In order to use these services it may occasionally be necessary to update the software of the receiver.
Supply voltage:
LNBs are provided with electrical current via the coaxial cable. In order to achieve this, the receiver supplies a voltage of 14 or 18 Volt
Transponder:
This has the task of processing one or more programmes on board the satellite. It receives data from the ground station, amplifies them, and broadcasts them back to earth
Universal LNB:
Term used to describe a
Low Band: 10,70 - 11,80 GHz; LOF 9750 MHz
High Band 11,70 - 12,75 GHz ; LOF 10600 MHz
Viaccess
Digital encryption standard
9 Technical Data
DBS-Tuner:
Input frequency range | 950 .... 2150 MHz |
Input level range | - 60 dBm ... - 25 dBm |
F - Buchse | |
Input impedance | 75 Ohm |
AFC capture range | +/- 3 MHz |
Demodulation | Shaped QPSK |
Symbo lrate | 15 ... 30 Mbaud/s, MCPC |
FEC | Viterbi and |
Viterbi rates | 1/2, 2/3, 3/4, 5/6, 7/8, automatic adjustment |
35 % |
Demultiplexing: | in accordance with ISO |
Video decoding: |
|
Video compression | |
| Up to MP@ML (main profile @ main level) |
Video standard | PAL / 25 Hz |
Active image area | 720 Pixel x 576 lines |
Image formatt | 4 : 3 / 16 : 9 |
Image material 16:9 | Automatic adjustment for 16:9 TV sets (via SCART) |
| Letterbox Filterung for 4:3 TV sets |
Audio decoding: |
|
Audio compression | |
Audio Mode | Dual (main/sub), Stereo |
Sampling frequencies | 32 kHz, 44.1 kHz, 48 kHz, |
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