Comtech EF Data SDM-300A - Manual (Page 376)

SDM-300A Satellite Modem Revision 6
Specifications MN/SDM300A.IOM
19–20
19.6.5 Performance with Noise, 1544 kbps and Sequential Decoder
(Optional)
Table 19-14lists the sequential specifications for the E
b
/N
0
required to achieve 10 -3 to 10 -8
BER at 1544 kbps. All values are for operating in BPSK and QPSK modes.
Table 19-14. Sequential Decoder BER Data (1544 kbps)
Eb/N0 (dB) Specification
BER 1/2 Rate 3/4 Rate 7/8 Rate
10-3
4.8 5.2 6.0
10-4 5.2 5.7 6.4
10-5 5.6 6.1 6.9
10-6 5.9 6.5 7.4
10-7 6.3 7.0 7.9
10-8 6.7 7.4 8.4
19.6.6 Performance with Noise at 1544 kbps, Sequential Decoder, and
Reed-Solomon (Optional)
Table 19-15lists the sequential specifications for the E
b
/N
0
required to achieve 10 -3 to 10 -8
BER at 1544 kbps. All values are for operating in BPSK and QPSK modes.
Table 19-15. Sequential Decoder BER (Reed-Solomon)
Eb/N0 (dB) Specification
BER 1/2 Rate 3/4 Rate 7/8 Rate
10-6 4.1 5.6 6.7
10-7 4.2 5.8 6.9
10-8 4.4 6.0 7.1
10-10 5.0 6.3 7.5