Modulation And Encoding Types; Table A-5. Modulation And Encoding Types - Comtech EF Data SNM-1001L Installation And Operation Manual

SNM-1001L Satellite Modem
Specifications
A.5.2

Modulation and Encoding Types

The following combinations of modulation and forward error correction encoding are
available.
Encoder
Viterbi, K7
Viterbi, K7
Viterbi, K7
PTCM
Viterbi, K7
PTCM
(RS EFD Compatible)
PTCM
(RS IESS-310 Compatible)
Sequential
Sequential
Sequential
Sequential
Uncoded
Turbo Product
Turbo Product
Turbo Product
Note: Interleaver depths are selectable at: 4, 8, or 16. The values shown are default or Open Network
specified.

Table A-5. Modulation and Encoding Types

Code Rate
1/2
1/2
1/2, 3/4, 7/8
2/3
1/2, 3/4, 7/8
2/3
2/3
1/2
1/2
1/2, 3/4, 7/8
1/2, 3/4, 7/8
1/1
21/44, 5/16
1/2, 3/4
3/4
Reed-Solomon
225/205 Closed
225/205 [4] IDR T1
225/205 [8] No Overhead, ASYNC Overhead
219/201 [4] VSAT IBS, IBS, IDR E1
126/112 [4] IDR Small Carrier, SDM-300
Legacy
225/205 [ ] Closed or IDR T1
126/112 [ ] IBS and D&I
219/201 [ ] IDR E1
219/201 [4] No Overhead,
219/201 [4] IBS and D&I
219/201 [8] IDR T1/E1
225/205 [ ] Closed
225/205 [ ] Closed
A–6
Revision 1
MN/SNM1001L.IOM
Modulation
BPSK
BPSK
QPSK, Offset QPSK
8PSK
QPSK
QPSK/Offset QPSK
QPSK
QPSK
8-PSK
8-PSK
BPSK
BPSK
QPSK, Offset QPSK
QPSK, Offset QPSK
BPSK, QPSK,
Offset QPSK
BPSK
QPSK,Offset QPSK
8-PSK