Comtech EF Data SDM-300A - Manual (Page 377)

SDM-300A Satellite Modem Revision 6
Specifications MN/SDM300A.IOM
19–21
19.6.7 8-PSK Performance with Noise and With/Without Reed-Solomon
Table 19-16 lists the 8-PSK specification for performance with noise and with/without
Reed-Solomon. All values are for operating in 8-PSK mode.
Table 19-16. 8-PSK Specification
Eb/N0 (dB) Specification
BER 2/3 Rate without
Reed-Solomon
2/3 Rate with
Reed-Solomon
10-6 8.7 6.1
10-7 9.5 6.4
10-8 10.2 6.6
10-9 11 6.9
10-10
11.8 7.2
19.6.8 Performance with Noise, Viterbi Decoder, and Offset QPSK
Table 19-17 lists the Viterbi and Offset QPSK specifications for the E
b
/N
0
required to
achieve 10 -3 to 10 -8 BER for different configurations.
Table 19-17. Viterbi Decoder and Offset QPSK
Eb/N0 (dB) Specification
BER 1/2 Rate 3/4 Rate 7/8 Rate
10-3 4.1 5.2 6.4
10-4 4.9 6.0 7.2
10-5
5.6 6.7 7.9
10-6 6.3 7.5 8.6
10 -7 6.9 8.2 9.2
10-8 7.5 8.8 9.9