Comtech EF Data CDM-600/600L - Manual (Page 149)

CDM-600/600L Open Network Satellite Modem Revision 3
Forward Error Correction Options MN/CDM600L.IOM
6–29
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
BER
Spec limit
8-PSK
Rate 3/4
Spec limit
16-QAM
Rate 3/4
1 2 3 4 5 6 7 8 9 10 11 12
Uncoded
16-QAM
Uncoded
8-PSK
LDPC Rate 3/4
8-PSK/16-QAM
Typical limit
16-QAM
Rate 3/4
Tyical limit
8-PSK
Rate 3/4
Figure 6-17. LDPC, Rate 3/4, 8-PSK / 16-QAM