Technical Specifications
DM240XR High-Speed Digital Modulator
7-2
TM120 – Rev. 1.1
Baseband Roll-Off:
Square Root Raised Cosine
0.35 (BPSK, QPSK, 8PSK, 16QAM)
0.25 (8PSK, 16QAM)
0.20 (BPSK, QPSK)
Terrestrial Input Clock Accuracy:
400 ppm (Maximum)
Test Pattern:
Internal 2
15
-1 and 2
23
-1 Pseudo-Random
Number Generators
7.2.2 DVB-S2-CCM (CCM - Normative)
Compliance
ETSI EN 302 307 v1.1.1 (normative)
Modulation Types:
QPSK, (8PSK, 16APSK & 32APSK Optional)
Transport Streams
Single MPEG Packetized Transport Streams
Data Rate:
1 to 54 Mbps in 1 bps steps (QPSK)
2 to 118 Mbps in 1 bps steps (8PSK)
2.6 to 160 Mbps in 1 bps steps (16APSK)
3.5 to 200 Mbps in 1 bps steps (32APSK)
Symbol Rate:
1 to 45 Msps in 1 bps steps
Terrestrial Framing:
188 (1 sync byte, 187 payload bytes)
Baseband Processing:
Per ETSI EN 302 307 v1.1.1
Block Size:
64800 bits & 16200 bits
FEC Code:
BCH + LDPC
Interleaver:
Block Interleaver, per ETSI EN 302 307 v1.1.1
Inner Code Rate:
1/4, 1/3, 2/5, 1/2, 2/3, 3/5, 3/4, 4/5, 5/6, 8/9, 9/10 (QPSK)
3/5, 2/3, 3/4, 5/6, 8/9, 9/10 (8PSK)
2/3, 3/4, 4/5, 5/6, 8/9, 9/10 (16APSK)
Optional
3/4, 4/5, 5/6, 8/9, 9/10 (32APSK)
Optional
Baseband Roll-Off
Square Root Raised Cosine
0.20
0.25
0.35
Terrestrial Input Clock Accuracy:
400 ppm (max)
Test Pattern:
Internal 2
15
-1 and 2
23
-1 Pseudo-Random Number
Generators
Consult Factory on ACM & VCM, Multiple Transport Streams and Generic Transport
Streams Input Stream Synchronizer & Null Packet Deletion
Содержание DM240XR
Страница 2: ......
Страница 10: ...Table of Contents DM240XR High Speed Digital Modulator x TM120 Rev 1 1 ...
Страница 12: ...Introduction DM240XR High Speed Digital Modulator 1 2 TM120 Rev 1 1 ...
Страница 16: ...Installation DM240XR High Speed Digital Modulator 2 4 TM120 Rev 1 1 ...
Страница 19: ...DM240XR High Speed Digital Modulator Theory of Operation TM120 Rev 1 1 3 3 ...
Страница 55: ...User Interfaces DM240XR High Speed Digital Modulator 4 36 TM120 Rev 1 1 ...
Страница 67: ...Rear Panel Interfaces DM240XR DVB High Speed Digital Modulator 5 12 TM120 Rev 1 1 ...
Страница 69: ...Maintenance and Troubleshooting DM240XR High Speed Digital Modulator 6 2 TM120 Rev 1 1 ...
Страница 79: ...Technical Specifications DM240XR High Speed Digital Modulator 7 10 TM120 Rev 1 1 ...
Страница 103: ...Appendix A DM240XR High Speed Digital Modulator A 24 TM120 Rev 1 1 ...
Страница 124: ...DM240XR High Speed Digital Modulator Appendix B TM120 Rev 1 1 B 21 ...