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MPEG Transport Stream A/V Decoding
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You can use a special antenna switch with DiSEqC commands.
When changing ASTRA1 to EUTELSAT for example, a DiSEqC command is sent with the 22KHz tone
through the antenna cable. The antenna switch will change ASTRA1 to EUTELSAT. The concept of
DiSEqC is a protective trademark of EUTELSAT.
Data rate decides the picture quality of digital TV programmes.
Data rate of about 5-6 Mbit/s coincides with the picture quality of a analog TV programme.
Input Connector
Frequency Range
Input Impedance
Signal Level
IF
IF Band width
LNB Power &
Polarisation
22 KHz Tone
0/12V DC Output
DiSEqC Control
Demodulation
Input Symbol Rate
FEC Decode
Transport Stream
Profile Level
Input Rate
Aspect Ratio
Video Resolution
Audio Decoding
Audio Mode
Sampling
Main Processor
Flash Memory
Graphic(MPEG) &
System DRAM
TMIPS R3930(81MHz)
2Mbyte
4Mbyte
3Mbyte(CAS Embedded)
4Mbyte(CAS Embedded)
MPEG-2 ISO/IEC 13818
Transport stream Specification
MPEG-2 MP@ML
60 Mbit/s Max
4:3, 16:9
720 x 576
MPEG/MusiCam Layer I & II
Single channel/Dual channel/Joint stereo/Stereo
32, 44.1 and 48KHz
F-type, IEC 169-24, Female
950 - 2150 MHz
75Ω unbalanced
-25 to -65dBm
480 MHz
36 MHz
Vertical : +13.5V
Horizontal : +18V
Current : 500mA Max. Overload Protection
Frequency : 22 ± 4KHz Amplitude : 0.6 ± 0.2V
Current Max. 50mA
Version 1.0/1.2 Compatible
QPSK
2-31 Ms/s
Convolutional Code Rate 1/2, 2/3, 3/4, 5/6 and 7/8
with Constraint Length K=7
Specification
E49