Performance With Noise Turbo Product Codec (Optional); Table 1-11. Turbo Product Codec - Comtech EF Data SLM-3650 Installation And Operation Manual

SLM-3650 Satellite Modem
Introduction
1.5.7

Performance with Noise Turbo Product Codec (Optional)

Table 1-11 lists the Turbo Codec specification for performance. All values are for
operating in 8-PSK mode. Refer to Figure 1-10 for Turbo Product Codec Values.
Note: 5/16 BPSK is included for compatibility with other equipment but implementation
limitations prohibit optimum performance at low Eb/No. Performance is virtually error
free above 4 dB Eb/No. Performance below 4dB Eb/No is not guaranteed. Rate 1/2
(21/44) has implementation limits. It will not reliably work below 3 dB Eb/No.
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Table 1-11. Turbo Product Codec

{O}QPSK
BER 1/2 Rate 3/4 Rate 21/44 Rate
10 3.0 3.9 2.8
-6
10 -7 3.2 4.1 3.1
10 -8 3.5 4.3 3.3
10 -9 3.8 4.8 3.7
1–27
BPSK 8-PSK
5/16 Rate 3/4 Rate
see Note 7.0
see Note 7.3
see Note 7.6
4.0 8.0
Revision 3
MN/SLM3650.IOM