Table of Contents
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CiM-550 IP Enabled Satellite Modem
Forward Error Correction
1
1E-1
1E-2
Specification
limit - Rate
21/44 BPSK
1E-3
Specification
limit - Rate
5/16 BPSK
1E-4
1E-5
1E-6
1E-7
1E-8
1E-9
1
BER
2
3
4
5
Uncoded BPSK/QPSK
Specification
limit - Rate
3/4 QPSK
Typical performance is
2
3
4
5
Figure 7-5. Comtech EF Data Turbo Product Codec
6
7
8
Comtech Turbo
Rate 21/44 BPSK
Rate 5/16 BPSK
approximately 0.3 dB
better than shown
6
7
8
102
CD/CIM550.IOM
Eb/No in dB
9
10
11
12
Product Codec
Rate 3/4 QPSK
9
10
11
12
Rev. 2
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