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Comtech EF Data CDM-600/600L User Manual

Page 143

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CDM-600/600L Open Network Satellite Modem

Revision 3

Forward Error Correction Options

MN/CDM600L.IOM

6–23

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

Uncoded

BPSK/QPSK

Comtech Turbo Product Codec

Rate 21/44 BPSK

Rate 5/16 BPSK

1 2 3 4 5 6 7 8 9 10 11 12

BER

Spec limit

Rate 21/44

BPSK

Spec limit

Rate 5/16

BPSK

Typical

performance















































Figure 6-11. Rate 21/44 BPSK and Rate 5/16 BPSK Turbo