Comtech EF Data CDM-570 - Manual (Page 178)

CDM-570/570L Satellite Modem with Optional IP Module Revision 12
Forward Error Correction Options MN/CDM570L.IOM
8–12
1E-9
1E-8
1E-7
1E-6
1E-5
1E-4
1E-3
1E-2
1E-1
1 2 3 4 5 6 7 8 9 10 11 12
Eb/No in dB
Specification limit
Rate 2/3 Coding and
220,200 RS Outer Code
Uncoded BPSK/QPSK
Typical
Performance
Specification
limit, Rate 2/3
Coding
1 2 3 4 5 6 7 8 9 10 11 12
BER
8-PSK/TCM Rate 2/3
Decoding, with 220,
200 RS Outer Code
Figure 8-3. 8-PSK/TCM Rate 2/3 with Concatenated RS Outer Code