Figure 7-17. Ldpc, Rate 3/4, 8-Psk / 8-Qam - Comtech EF Data CDM-600L Installation And Operation Manual

CDM-600L Satellite Modem
Forward Error Correction Options
1
1E-1
1E-2
1E-3
1E-4
1E-5
1E-6
1E-7
1E-8
1E-9
1
BER
2 3 4 5
Spec limit
Tyical limit
8-PSK
Rate 3/4
3 4
2 5

Figure 7-17. LDPC, Rate 3/4, 8-PSK / 8-QAM

6 7 8
LDPC Rate 3/4
8-PSK/16-QAM
Uncoded
8-PSK
8-PSK
Rate 3/4
Spec limit
16-QAM
Rate 3/4
Typical limit
16-QAM
Rate 3/4
6 7
8
7–29
Revision 2
MN/CDM600L.IOM
Eb/No in dB
9 10 11 12
Uncoded
16-QAM
9 11 12
10