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2 ber (bit error rate) – Comtech EF Data ODM-840 User Manual

Page 38

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ODM/R-840 Outdoor Remote Router

Revision 0

Introduction

MN-ODM840

1–12

1.4.2

BER (Bit Error Rate)

Specification

Description

VersaFEC CODEC BER
BPSK
(With two adjacent carriers,
each 7 dB higher than the
desired carrier)





For:

BER=10-5
BER=10-8

Rate 0.488

Guaranteed Eb/No

(typical value in

parentheses):

2.4 dB (2.1 dB)
2.7 dB (2.4 dB)

VersaFEC CODEC BER
QPSK
(With two adjacent carriers,
each 7 dB higher than the
desired carrier)





For:

BER=10

-5

BER=10

-8

Rate 0.533 QPSK

Guaranteed Eb/No

(typical value in

parentheses):

2.3 dB (2.0 dB)
2.5 dB (2.2 dB)

Rate 0.631 QPSK

Guaranteed Eb/No

(typical value in

parentheses):

2.8 dB (2.5 dB)
3.0 dB (2.7 dB)

Rate 0.706 QPSK

Guaranteed Eb/No

(typical value in

parentheses):

3.3 dB (3.0 dB)
3.7 dB (3.4 dB)

Rate 0.803 QPSK

Guaranteed Eb/No

(typical value in

parentheses):

3.8 dB (3.5 dB)
4.1 dB (3.8 dB)

VersaFEC CODEC BER
8QAM
(With two adjacent carriers,
each 7 dB higher than the
desired carrier)





For:

BER=10

-5

BER=10

-8

Rate 0.642 8QAM

Guaranteed Eb/No

(typical value in

parentheses):

4.6 dB (4.3 dB)
4.9 dB (4.6 dB)

Rate 0.711 8QAM

Guaranteed Eb/No

(typical value in

parentheses):

5.2 dB (4.9 dB)
5.5 dB (5.2 dB)

Rate 0.780 8QAM

Guaranteed Eb/No

(typical value in

parentheses):

5.6 dB (5.3 dB)
6.0 dB (5.7 dB)

VersaFEC CODEC BER
16QAM
(With two adjacent carriers,
each 7 dB higher than the
desired carrier)






For:

BER=10

-5

BER=10

-8

Rate 0.731

16QAM

Guaranteed Eb/No

(typical value in

parentheses):

6.4 dB (6.1 dB)
6.6 dB (6.3 dB)

Rate 0.780 16QAM

Guaranteed Eb/No

(typical value in

parentheses):


7.0 dB (6.7 dB)
7.3 dB (7.0 dB)

Rate 0.829 16QAM

Guaranteed Eb/No

(typical value in

parentheses):


7.5 dB (7.2 dB)
7.8 dB (7.5 dB)

Rate 0.853 16QAM

Guaranteed Eb/No

(typical value in

parentheses):


8.0 dB (7.7 dB)
8.3 dB (8.0 dB)

Monitor Functions

• Eb/No estimate: 3 to 12 dB with ± 0.5 dB accuracy

• Corrected Bit Error Rate: 1E-3 to 1E-9

• Frequency offset: ± 32 kHz range,100 Hz resolution

• Signal Strength Indicator: 0-60 dB range relative to maximum gain

 

 

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