Comtech EF Data SLM-5650A - Manual (Page 342)

SLM-5650A Satellite Modem Revision 8
Appendix B
B–8
Modulation Type
Data Rate (kbps) Symbol Rate (ksps)
Min Max Min Max
BPSK 21/44 64 30545.454 134.095 63999.999
BPSK 5/16 64 20000 204.8 64000
QPSK 17/18 64 120888.888 33.882 63999.999
QPSK 21/44 64 61090.909 67.047 63999.999
QPSK 3/4 64 96000 42.666 64000
QPSK 7/8 64 112000 36.571 64000
OQPSK 17/18 64 120888.888 33.882 63999.999
OQPSK 21/44 64 61090.909 67.047 63999.999
OQPSK 3/4 64 96000 42.666 64000
OQPSK 7/8 64 112000 36.571 64000
8-PSK 17/18 256 155520 90.352 54889.411
8-PSK 3/4 256 144000 113.777 64000
8-PSK 7/8 256 155520 97.523 59245.714
16-QAM 3/4 256 155520 85.333 51840
16-QAM 7/8 256 155520 73.143 44434.285
B.2.9 16-QAM Mode
Modulation Type R-S Code Word R-S Depth
Data Rate ( kbps) Symbol Rate ( ksps)
Min Max Min Max
16-QAM 3/4
None None
256 51840
85.333 17280
219,201
4, 8, 16
92.975 18827.462
208,192 92.889 18810
16-QAM 7/8
None None
256 51840
73.143 14811.428
219,201
4, 8, 16
79.692 16137.825
208,192 79.619 16122.857
16-QAM 3/4 requires Reed-Solomon to be ON in order to automatically resolve data ambiguities.