Comtech EF Data SLM-5650A - Manual (Page 43)

SLM-5650A Satellite Modem Revision 8
Introduction MN-SLM5650AMN-SLM5650A
1–15
1.4.1.2 Data Quality Performance
1.4.1.2.1 OM-73 Compatible Mode Performance
Operating in the OM-73-compatible mode, SLM-5650A BER vs. E
b
/N
0
performance with
differential encoding and data scrambling enabled does not exceed values shown in Table 1-3
through Table 1-8.
1.4.1.2.2 MIL-STD-188-165A Compatible Mode Performance
Operating with BPSK, QPSK, or OQPSK modulation in the MIL-STD-188-165A compatible
mode, SLM-5650A BER vs. E
b
/N
0
performance with differential encoding and data scrambling
enabled will not exceed values shown in Table 1-3 (without Reed-Solomon) or Table 1-4 (with
Reed-Solomon) tested in an IF back-to-back configuration over the BER range 5 x 10 -03 to 1 x 10 -07 .
Operating with 8PSK modulation and rate 2/3 pragmatic Trellis coding (without Reed-Solomon
outer coding), SLM-5650A BER vs. E
b
/N
0
performance is less than or equal to the values shown
in Table 1-5 when tested in an IF back-to-back configuration.
Operating with 8PSK modulation, rate 2/3 pragmatic Trellis coding, and Reed-Solomon
(219,201) outer coding, SLM-5650A BER vs. E
b
/N
0
performance is better than or equal to the
values shown in Table 1-6 when tested in an IF back-to-back configuration.
1.4.1.2.3 IESS-308 Compatible Mode Performance
When operating in the IESS-308 Compatible Mode, SLM-5650A BER vs. E
b
/N
0
performance is
as specified in IESS-308.
1.4.1.2.4 IESS-309 Compatible Mode Performance
When operating in the IESS-309 Compatible Mode, SLM-5650A BER vs. E
b
/N
0
performance is
as specified in IESS-309.
1.4.1.2.5 IESS-310 Compatible Mode Performance
When operating in the IESS-310 Compatible Mode, SLM-5650A BER vs. E
b
/N
0
performance is
as specified in IESS-310.
1.4.1.2.6 16QAM Coding Mode Performance
The SLM-5650A operating in the 16QAM mode provides back-to-back BER vs. E
b
/N
0
performance better than or equal to the values shown in Table 1-7 when using the modulation
formats indicated.