CDM-425 Advanced Satellite Modem
Revision 0
Introduction
1–21
MN-CDM-425
VersaFEC CODEC BER
BPSK
(With two adjacent
carriers, each 7 dB
higher than the desired
carrier)
BER=10
-5
BER=10
-8
Rate 0.488
2.4 dB (2.1 dB)
2.7 dB (2.4 dB)
VersaFEC CODEC BER
QPSK
(With two adjacent
carriers, each 7 dB
higher than the desired
carrier)
For BER=10
-X
Rate – Guaranteed Eb/No (typical value in parentheses)
BER=10
-5
BER=10
-8
Rate 0.533 QPSK
2.3 dB (2.0 dB)
2.5 dB (2.2 dB)
Rate 0.631 QPSK
2.8 dB (2.5 dB)
3.0 dB (2.7 dB)
Rate 0.706 QPSK
3.3 dB (3.0 dB)
3.7 dB (3.4 dB)
Rate 0.803 QPSK
3.8 dB (3.5 dB)
4.1 dB (3.8 dB)
VersaFEC CODEC BER
8-QAM
(With two adjacent
carriers, each 7 dB
higher than the desired
carrier)
BER=10
-5
BER=10
-8
Rate 0.642 8-QAM
4.6 dB (4.3 dB)
4.9 dB (4.6 dB)
Rate 0.711 8-QAM
5.2 dB (4.9 dB)
5.5 dB (5.2 dB)
Rate 0.780 8-QAM
5.6 dB (5.3 dB)
6.0 dB (5.7 dB)
VersaFEC CODEC BER
16-QAM
(With two adjacent
carriers, each 7 dB
higher than the desired
carrier)
BER=10
-5
BER=10
-8
Rate 0.731 16-
QAM
6.6 dB (6.3 dB)
6.8 dB (6.5 dB)
Rate 0.780 16-
QAM
7.1 dB (6.8 dB)
7.4 dB (7.1 dB)
Rate 0.829 16-
QAM
7.7 dB (7.4 dB)
8.0 dB (7.7 dB)
Rate 0.853 16-
QAM
8.1 dB (7.8 dB)
8.4 dB (8.1 dB)
VersaFEC CODEC –
Extended CCM (ECCM)
BER
(With two adjacent
carriers, each 7 dB
higher than the desired
carrier)
BER=10
-5
BER=10
-8
Rate 0.576 8-QAM
4.5 dB (4.2 dB)
4.9 dB (4.6 dB)
Rate 0.644 16-
QAM
6.4 dB (6.1 dB)
6.9 dB (6.6 dB)
VersaFEC-2 Long Block
CODEC BER
BPSK
(With two adjacent
carriers, each 7 dB
higher than the desired
carrier)
BER=10
-4
BER=10
-8
Rate 0.489 BPSK
1.8 dB (1.5 dB)
2.1 dB (1.8 dB)
Содержание CDM-425
Страница 30: ...CDM 425 Advanced Satellite Modem Revision Preface xxviii MN CDM 425 Notes...
Страница 72: ...CDM 425 Advanced Satellite Modem Revision 0 Installation 2 8 MN CDM 425 BLANK PAGE...
Страница 118: ...CDM 425 Advanced Satellite Modem Revision 0 FAST Activation Procedure 5 6 MN CDM 425 Notes...
Страница 194: ...CDM 425 Advanced Satellite Modem Revision 0 Front Panel Operation 6 76 MN CDM 425 Figure 6 3 Loopback Modes...
Страница 390: ...CDM 425 Advanced Satellite Modem Revision 0 Serial Remote Control 8 66 MN CDM 425 BLANK PAGE...
Страница 558: ...CDM 425 Advanced Satellite Modem Revision 0 ODU Transceiver BUC LNB Operation 10 68 MN CDM 425 Notes...
Страница 574: ...CDM 425 Advanced Satellite Modem Revision 0 Appendix B B 12 MN CDM 425 BLANK PAGE...
Страница 575: ...CDM 425 Advanced Satellite Modem Revision 0 Appendix B B 13 MN CDM 425 Figure B 8 VersaFEC 2 Short Block...
Страница 576: ...CDM 425 Advanced Satellite Modem Revision 0 Appendix B B 14 MN CDM 425 Figure B 9 VersaFEC 2 Short Block...
Страница 587: ...CDM 425 Advanced Satellite Modem Revision 0 Appendix E E 3 MN CDM 425 Figure E 1 TX Clock Modes...
Страница 589: ...CDM 425 Advanced Satellite Modem Revision 0 Appendix E E 5 MN CDM 425 Figure E 2 RX Clock Modes...
Страница 600: ...CDM 425 Advanced Satellite Modem Revision 0 Appendix E E 16 MN CDM 425 BLANK PAGE...
Страница 602: ...CDM 425 Advanced Satellite Modem Revision 0 Appendix E E 18 MN CDM 425 BLANK PAGE...
Страница 607: ...CDM 425 Advanced Satellite Modem Revision 0 Appendix F F 5 MN CDM 425 Figure F 2 Conventional FDMA Link...
Страница 638: ...CDM 425 Advanced Satellite Modem Revision 0 Appendix F F 36 MN CDM 425 BLANK PAGE...
Страница 642: ...CDM 425 Advanced Satellite Modem Revision 0 Appendix G G 4 MN CDM 425 BLANK PAGE...
Страница 684: ...CDM 425 Advanced Satellite Modem Revision 0 Appendix K K 4 MN CDM 425 BLANK PAGE...
Страница 685: ...CDM 425 Advanced Satellite Modem Revision 0 Appendix K K 5 MN CDM 425 Figure K 1 ACM over Satellite Generic Example...
Страница 686: ...CDM 425 Advanced Satellite Modem Revision 0 Appendix K K 6 MN CDM 425 BLANK PAGE...
Страница 710: ...CDM 425 Advanced Satellite Modem Revision 0 Appendix K K 30 MN CDM 425 BLANK PAGE...
Страница 728: ...CDM 425 Advanced Satellite Modem Revision 0 Appendix M M 16 MN CDM 425 Notes...
Страница 742: ...CDM 425 Advanced Satellite Modem Revision 0 Appendix P P 6 MN CDM 425 Notes...
Страница 743: ......
Страница 744: ...2114 WEST 7TH STREET TEMPE ARIZONA 85281 USA 480 333 2200 PHONE 480 333 2161 FAX...