CDM-600 Satellite Modem

 

 

Revision 7

Summary of Specifications

 

 

MN/CDM600.IOM

 

 

 

 

 

VITERBI

 

Rate 1/2 (B, Q, OQ)

Rate 3/4 (Q, OQ)

Rate 7/8 (Q, OQ)

BER performance

 

Guaranteed Eb/No:

Guaranteed Eb/No:

Guaranteed Eb/No:

(met in the presence of

 

(typical value in

(typical value in

(typical value in

two adjacent carriers,

 

parentheses)

parentheses)

parentheses)

each 7 dB higher than

For:

 

 

 

the desired carrier)

BER=10-5

5.4 dB (4.9 dB)

6.8 dB (6.3 dB)

7.7 dB (7.2 dB)

 

BER=10-6

6.0 dB (5.5 dB)

7.4 dB (6.9 dB)

8.4 dB (7.9 dB)

 

BER=10-7

6.7 dB (6.2 dB)

8.2 dB (7.7 dB)

9.0 dB (8.6 dB)

 

 

 

 

 

SEQUENTIAL

 

Rate 1/2 (B, Q, OQ)

Rate 3/4 (Q, OQ)

Rate 7/8 (Q, OQ)

@ 64 kbps BER

 

GuaranteedEb/No:

Guaranteed Eb/No:

Guaranteed Eb/No:

(met in the presence of

 

(typical value in

(typical value in

(typical value in

two adjacent carriers,

 

parentheses)

parentheses)

parentheses)

each 7 dB higher than

For:

 

 

 

the desired carrier)

BER=10-5

4.8 dB (4.2 dB)

5.8 dB (5.3 dB)

7.0 dB (6.6 dB)

 

BER=10-6

5.2 dB (4.5 dB)

6.4 dB (5.8 dB)

7.5 dB (7.2 dB)

 

BER=10-7

5.6 dB (4.8 dB)

6.9 dB (6.3 dB)

8.0 dB (7.7 dB)

SEQUENTIAL

 

Rate 1/2 (B, Q, OQ)

Rate 3/4 (Q, OQ)

Rate 7/8 (Q, OQ)

@ 1024 kbps BER

 

Guaranteed Eb/No:

Guaranteed Eb/No:

Guaranteed Eb/No:

(met in the presence of

 

(typical value in

(typical value in

(typical value in

two adjacent carriers,

 

parentheses)

parentheses)

parentheses)

each 7 dB higher than

For:

 

 

 

the desired carrier)

BER=10-5

5.2 dB (4.8 dB)

5.9dB (5.5dB)

7.2 dB (6.6 dB)

 

BER=10-6

5.7 dB (5.2 dB)

6.5dB (6.0dB)

7.7 dB (7.2 dB)

 

BER=10-7

6.1 dB (5.7 dB)

7.0dB (6.5dB)

8.3 dB (7.7 dB)

VITERBI and RS

 

Rate 1/2 (B, Q, OQ)

Rate 3/4 (Q, OQ)

Rate 7/8 (Q, OQ)

220,200 or 200,180

 

Guaranteed Eb/No:

Guaranteed Eb/No:

Guaranteed Eb/No:

Outer Code BER

 

(typical value in

(typical value in

(typical value in

(with two adjacent

 

parentheses)

parentheses)

parentheses)

carriers, each 7 dB

For:

 

 

 

higher than the desired

BER=10-5

4.3 dB (4.0 dB)

5.6 dB (4.7 dB)

6.5 dB (6.0 dB)

carrier)

BER=10-6

4.4 dB (4.1 dB)

5.8 dB (4.8 dB)

6.7 dB (6.2 dB)

 

 

BER=10-7

4.5 dB (4.2 dB)

6.0 dB (5.2 dB)

6.9 dB (6.5 dB)

SEQUENTIAL and

 

Rate 1/2 (B, Q, OQ)

Rate 3/4 (Q, OQ)

Rate 7/8 (Q, OQ)

RS 220,200 or 200,180

 

Guaranteed Eb/No:

Guaranteed Eb/No:

Guaranteed Eb/No:

Outer Code @ 512 kbps

 

(typical value in

(typical value in

(typical value in

(two adjacent carriers,

For:

parentheses)

parentheses)

parentheses)

each 7 dB higher than

BER=10-7

 

 

 

the desired carrier)

4.6 dB (4.3 dB)

5.3 dB (4.9 dB)

6.0 dB (5.7 dB)

 

BER=10-8

4.8 dB (4.5 dB)

5.6 dB (5.3 dB)

6.4 dB (6.1 dB)

8-PSK/TCM CODEC

 

Rate 2/3 8-PSK/TCM

Rate 2/3 8-PSK/TCM

 

BER

 

Guaranteed Eb/No:

w/concatenated RS

 

(With two adjacent

 

(typical value in

Guaranteed Eb/No:

 

carriers, each 7 dB

 

parentheses)

(typical value in

 

higher than the desired

For:

 

parentheses)

 

carrier)

BER=10-5

7.9 dB (7.2 dB)

6.3 dB (5.4 dB)

 

 

 

 

BER=10-7

9.5 dB (8.7 dB)

6.7 dB (5.8 dB)

 

 

BER=10-8

10.4 dB (9.5dB)

6.9 dB (6.0 dB)

 

 

 

 

 

 

15–4

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Premier Mounts CDM-600 specifications 15-4