Figure 6-6. Rate 1/2 Qpsk, Rate 17/18 Qpsk And Rate 17/18 8-Psk - Comtech EF Data CDM-Qx Installation And Operation Manual

CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier®
Forward Error Correction Options
1
1E-1
Uncoded
BPSK/QPSK
1E-2
Performance with CDM-Qx
1E-3
1E-4
1E-5
1E-6
1E-7
1E-8
Typical
performance
1E-9
1
BER

Figure 6-6. Rate 1/2 QPSK, Rate 17/18 QPSK and Rate 17/18 8-PSK

2 3 4 5
Comtech Turbo Product Codec
Spec limit
Spec limit
Rate 1/2 Rate 1/2
QPSK
QPSK/OQPSK
2 3 4 5
6 7 8
Rate 1/2 QPSK
Rate 17/18 QPSK
and 8-PSK
Spec limit
Spec limit
Rate 17/18
Rate 17/18
QPSK
QPSK/OQPSK
Spec limit
Rate 17/18
8-PSK
6 7 8
7–13
Revision 7
MN/CDMQX.IOM
Eb/No in dB
9 10 11 12
Uncoded
8-PSK
9 10 11 12