E.3.3.2 Home > Modem > Modem Tx - Comtech EF Data CDM-625 Installation And Operation Manual

CDM-625 Advanced Satellite Modem
Appendix E
E.3.3.2 Home > Modem > Modem TX
Open the Modem TX page from the Modem submenu. This page contains the following options:
Hot
Dialog Window
Key
Tx FEC Type
A
B
Tx Mod Type
C Tx FEC Code Rate
D
Tx Data Rate
E
Tx Symbol Rate
Option Entry
Use the ↑↓ arrow keys to select:
• None Diff Enc On • Viterbi
• Sequential • Sequential Reed-Solomon • TCM
• TCM Reed-Solomon • TPC
• LDPC • VersaFEC
Use the ↑↓ arrow keys to select:
• BPSK • QPSK
• 8PSK • 16QAM
Use the ↑↓ arrow keys to select:
• Rate 1/2 • Rate 3/4
• Rate 2/3 • Rate 1/1
• Rate 5/16 • Rate 0.95
• VersaFEC QPSK 0.533 • VersaFEC QPSK 0.631
• VersaFEC QPSK 0.803 • VersaFEC 8QAM 0.642
• VersaFEC 8QAM 0.780 • VersaFEC 16QAM 0.731
• VersaFEC 16QAM 0.829 • VersaFEC 16QAM 0.853
• VersaFEC ULL BPSK
• VersaFEC 16QAM 0.644
• VersaFEC ULL QPSK 0.654
Enter a value from 18.000 to 25000.000 Kbps
Enter a value from 18.000 to 25000.000 Ksps
E–24
• Viterbi Reed-Solomon
• None Diff Enc Off
• ULL
• OQPSK
• 8QAM
• Rate 7/8
• Rate 21/44
• VersaFEC BPSK 0.488
• VersaFEC QPSK 0.706
• VersaFEC 8QAM 0.711
• VersaFEC 16QAM 0.780
• VersaFEC 8QAM 0.576
• VersaFEC ULL QPSK
0.493 0.493
• VersaFEC ULL QPSK 0.734
Revision 13
MN-CDM625