Demodulation and fec decoding types, 2 demodulation and fec decoding types – Comtech EF Data SDM-300A User Manual
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SDM-300A Satellite Modem
Revision 6
Specifications
MN/SDM300A.IOM
19–14
19.5.2
Demodulation and FEC Decoding Types
Table 19-8 shows combinations of demodulation and forward error correction decoding.
Table 19-8. Demodulation FEC Decoding
Decoder
Code Rate
Modulation
Viterbi, K7
½
BPSK
Viterbi, K7
Reed-Solomon
½
225/205 Closed
BPSK
Viterbi, K7
½, ¾, 7/8
QPSK, OQPSK
Viterbi, K7, TCM
2/3
8-PSK
Viterbi, K7
Reed-Solomon
½, ¾, 7/8
225/205 Closed or IDR T1,
126/112 IBS and D&I,
219/201 IDR E1
QPSK, OQPSK
Viterbi, K7, TCM
Reed-Solomon
EFD
Compatible
2/3
225/205 Closed or IDR T1,
126/112 IBS and D&I,
219/201 IDR E1
8-PSK
Viterbi, K7, TCM
Reed-Solomon
IESS-310
Compatible
2/3
219/201 [4] No Overhead,
219/201 [4] IBS and D&I,
219/201 [8] IDR T1/E1
8-PSK
Sequential ½
BPSK
Sequential
Reed-Solomon
½
225/205 Closed
BPSK
Sequential
½, ¾, 7/8
QPSK, OQPSK
Sequential
Reed-Solomon
½, ¾, 7/8
225/205 Closed
QPSK, OQPSK
QPSK, OQPSK
Turbo 21/44,
5/16 BPSK
Turbo
½, ¾
QPSK, OQPSK
Turbo ¾
8-PSK
Uncoded
1/1
BPSK, QPSK, OQPSK