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Comtech EF Data CDM-570A User Manual

Page 52

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CDM-570A/570AL Satellite Modem with Optional Packet Processor

MN-CDM570A

Introduction

Revision 2

1–18

BER Description

For

BER=

Rate

Guaranteed Eb/No ((typical value in parentheses)

TURBO PRODUCT CODEC

Rate 3/4 QPSK

Rate 3/4 8-PSK

Rate 3/4 16-QAM

(With two adjacent carriers, each 7

dB higher than the desired carrier)

10

-6

10

-7

10

-8

3/4 (QPSK, OPQSK)

3.8dB (3.4dB)

4.1dB (3.7dB)

4.4dB (4.0dB)

3/4 (8-PSK)

6.2 dB (5.8 dB)

6.4 dB (6.0 dB)

6.8 dB (6.3 dB)

Rate 3/4 (16-QAM)

7.4dB (7.0 dB)

7.8 dB (7.3 dB)

8.2 dB (7.7 dB)

TURBO PRODUCT CODEC

Rate 7/8 QPSK

Rate 7/8 8-PSK

Rate 7/8 16-QAM

(With two adjacent carriers, each 7

dB higher than the desired carrier)

10

-6

10

-7

10

-8

Rate 7/8 (QPSK, OPQSK)

4.3 dB (4.0 dB)

4.4 dB (4.1 dB)

4.5 dB (4.2 dB)

Rate 7/8 (8-PSK)

7.0 dB (6.6 dB)

7.1 dB (6.7 dB)

7.2 dB (6.8 dB)

Rate 7/8 (16-QAM)

8.1 dB (7.7 dB)

8.2 dB (7.8 dB)

8.3 dB (7.9 dB)

TURBO PRODUCT CODEC

Rate 0.95 QPSK

Rate 0.95 8-PSK

(With two adjacent carriers, each 7

dB higher than the desired carrier)

10

-6

10

-7

B10

-8

Rate 0.95 (QPSK, OPQSK)

6.4 dB (6.0 dB)

6.7 dB (6.3 dB)

6.9 dB (6.5 dB)

Rate 0.95 (8-PSK)

9.3 dB (8.9 dB)

9.8 dB (9.4 dB)

10.3 dB (9.9 dB)

TURBO PRODUCT CODEC

Rate 3/4 8-QAM

Rate 7/8 8-QAM

Rate 0.95 8-QAM

(With two adjacent carriers, each 7

dB higher than the desired carrier)

10

-6

10

-7

10

-8

Rate 3/4 (8-QAM)

6.5 dB (6.1 dB)

6.8 dB (6.4 dB)

7.2 dB (6.8 dB)

Rate 7/8 (8-QAM)

6.6 dB (6.2 dB)

6.7 dB (6.3 dB)

6.8 dB (6.4 dB)

Rate 0.95 (8-QAM)

9.6 dB (9.2 dB)

10.1 dB (9.7 dB)

10.6 dB (10.2 dB)

16-QAM VITERBI/R-S

(With two adjacent carriers, each 7

dB higher than the desired carrier)

10

-6

10

-8

3/4Viterbi/R-S (16-QAM)

8.1 dB (7.5 dB)

8.6 dB (8.0 dB)

7/8 Viterbi/R-S (16-QAM)

9.5 dB (9.0 dB)

10.1 dB (9.5 dB)

VersaFEC CODEC BPSK

(With two adjacent carriers, each 7

dB higher than the desired carrier)

10

-5

10

-8

0.488 (BPSK)

2.4 dB (2.1 dB)

2.7 dB (2.4 dB)

VersaFEC CODEC QPSK

(With two adjacent carriers, each 7

dB higher than the desired carrier)

10

-5

10

-8

0.533 (QPSK)

2.3 dB (2.0 dB)

2.5 dB (2.2 dB)

0.631 (QPSK)

2.8 dB (2.5 dB)

3.0 dB (2.7 dB)

0.706 (QPSK)

3.3 dB (3.0 dB)

3.7 dB (3.4 dB)

0.803 (QPSK)

3.8 dB (3.5 dB)

4.1 dB (3.8 dB)

VersaFEC CODEC 8-QAM

(With two adjacent carriers, each 7

dB higher than the desired carrier)

10

-5

10

-8

0.642 (8-QAM)

4.6 dB (4.3 dB)

4.9 dB (4.6 dB)

0.711 (8-QAM)

5.2 dB (4.9 dB)

5.5 dB (5.2 dB)

0.780 (8-QAM)

5.6 dB (5.3 dB)

6.0 dB (5.7 dB)

VersaFEC CODEC 16-QAM

(With two adjacent carriers, each 7

dB higher than the desired carrier)

10

-5

10

-8

0.731 (16-QAM)

6.6 dB (6.3 dB)

6.8 dB (6.5 dB)

0.780 (16-QAM)

7.1 dB (6.8 dB)

7.4 dB (7.1 dB)

0.829 (16-QAM)

7.7 dB (7.4 dB)

8.0 dB (7.7 dB)

0.853 (16-QAM)

8.1 dB (7.8 dB)

8.4 dB (8.1 dB)

VersaFEC CODEC - Extended

CCM

(With two adjacent carriers, each 7

dB higher than the desired carrier)

10

-5

10

-8

0.576 (8-QAM)

4.5 dB (4.2 dB)

4.9 dB (4.6 dB)

0.644 (16-QAM)

6.4 dB (6.1 dB)

6.9 dB (6.6 dB)

Ultra-Low-Latency (ULL) CODEC

(With two adjacent carriers, each 7

dB higher than the desired carrier)

10

-5

10

-8

0.493 (BPSK)

3.1 dB (2.8 dB)

3.7 dB (3.4 dB)

0.493 (QPSK)

3.1 dB (2.8 dB)

3.7 dB (3.4 dB)

0.654 (QPSK)

3.6 dB (3.3 dB)

4.2 dB (3.9 dB)

0.734 (QPSK)

4.1 dB (3.8 dB)

4.7 dB (4.4 dB)

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