Comtech EF Data CDM-625 - Manual (Page 552)

CDM-625 Advanced Satellite Modem Revision 15
Appendix E MN-CDM625
E–24
E.3.3.2 Home > Modem > Modem TX
Open the Modem TX page from the Modem submenu. This page contains the following options:
Hot
Key Dialog Window
Option Entry
A
Tx FEC Type
Use the ↑↓ arrow keys to select:
• None Diff Enc On • Viterbi • Viterbi Reed-Solomon
• Sequential • Sequential Reed-Solomon • TCM
• TCM Reed-Solomon • TPC • None Diff Enc Off
• LDPC • VersaFEC • ULL
B Tx Mod Type
Use the ↑↓ arrow keys to select:
• BPSK • QPSK • OQPSK
• 8PSK • 16QAM • 8QAM
C Tx FEC Code Rate
Use the ↑↓ arrow keys to select:
• Rate 1/2 • Rate 3/4 • Rate 7/8
• Rate 2/3 • Rate 1/1 • Rate 21/44
• Rate 5/16 • Rate 0.95 • VersaFEC BPSK 0.488
• VersaFEC QPSK 0.533 • VersaFEC QPSK 0.631 • VersaFEC QPSK 0.706
• VersaFEC QPSK 0.803 • VersaFEC 8QAM 0.642 • VersaFEC 8QAM 0.711
• VersaFEC 8QAM 0.780 • VersaFEC 16QAM 0.731 • VersaFEC 16QAM 0.780
• VersaFEC 16QAM 0.829 • VersaFEC 16QAM 0.853 • VersaFEC 8QAM 0.576
• VersaFEC 16QAM 0.644 • VersaFEC ULL BPSK
0.493
• VersaFEC ULL QPSK
0.493
• VersaFEC ULL QPSK 0.654 • VersaFEC ULL QPSK 0.734
D Tx Data Rate Enter a value from 18.000 to 25000.000 Kbps
E Tx Symbol Rate Enter a value from 18.000 to 25000.000 Ksps