Comtech EF Data CDM-550T Manual page 111

CDM-550T Satellite Modem
Clock tracking range ± 100 ppm min
VITERBI BER
performance
(met in the presence
of two adjacent
carriers, each 7 dB For:
higher than the
desired carrier)
SEQUENTIAL @ 64
kbps BER
(met in the presence
of two adjacent
carriers, each 7 dB For:
higher than the
desired carr.)
SEQUENTIAL @
1024 kbps BER
(met in the presence
of two adjacent
For:
carriers, each 7 dB
higher than the
desired carr.)
VITERBI and RS
220,200 or 200,180
Outer Code BER
(with two adjacent
carriers, each 7 dB For:
higher than the
desired carr.)
SEQUENTIAL and
RS 220,200 or
200,180 Outer Code
@ 512 kbps (two For:
adjacent carriers,
each 7 dB higher
than desired)
TURBO PRODUCT
CODEC
BER
For:
(With two adjacent
carriers, each 7 dB
higher than desired)
Rev. 1.3
Rate 1/2
Guaranteed
Eb/No:
(typical value in
parentheses)
-5
BER=10 5.4dB (4.9dB)
-6
BER=10 6.0dB (5.5dB)
-7
BER=10 6.7dB (6.2dB)
Rate 1/2
Guaranteed
Eb/No:
(typical value in
parentheses)
-5
BER=10 4.8dB (4.2dB)
-6
BER=10 5.2dB (4.5dB)
-7
BER=10 5.6dB (4.8dB)
Rate 1/2
Guaranteed
Eb/No:
(typical value in
parentheses)
-5
BER=10 5.2dB (4.8dB)
-6
BER=10 5.7dB (5.2dB)
-7
BER=10
6.1dB (5.7dB)
Rate 1/2
Guaranteed
Eb/No:
(typical value in
parentheses)
-5
BER=10 4.3dB (4.0dB)
-6
BER=10 4.4dB (4.1dB)
-7
BER=10 4.5dB (4.2dB)
Rate 1/2
Guaranteed
Eb/No:
(typical value in
parentheses)
-7
BER=10 4.6dB (4.3dB)
-8
BER=10 4.8dB (4.5dB)
Rate 3/4 (Q)
Guaranteed
Eb/No:
(typical value in
parentheses)
-6
BER=10 3.9dB (3.5dB)
-7
BER=10 4.1dB (3.7dB)
-8
BER=10 4.3dB (4.0dB)
Summary Of Specifications
Rate 3/4
Guaranteed Guaranteed Eb/No:
Eb/No:
(typical value in
parentheses)
6.8dB (6.3dB)
7.4dB (6.9dB)
8.2dB (7.7dB)
Rate 3/4
Guaranteed Guaranteed Eb/No:
Eb/No:
(typical value in
parentheses)
5.8dB (5.3dB)
6.4dB (5.8dB)
6.9dB (6.3dB)
Rate 3/4
Guaranteed Guaranteed Eb/No:
Eb/No:
(typical value in
parentheses)
5.9dB (5.5dB)
6.5dB (6.0dB)
7.0dB (6.5dB)
Rate 3/4
Guaranteed Guaranteed Eb/No:
Eb/No:
(typical value in
parentheses)
5.6dB (4.7dB)
5.8dB (4.8dB)
6.0dB (5.2dB)
Rate 3/4
Guaranteed Guaranteed Eb/No:
Eb/No:
(typical value in
parentheses)
5.3dB (4.9dB)
5.6dB (5.3dB)
Rate 21/44 (B)
Guaranteed Guaranteed Eb/No:
Eb/No:
(typical value in
parentheses)
2.8dB (2.5dB)
3.1dB (2.8dB)
3.3dB (3.0dB)
Rate 7/8
(typical value in
parentheses)
7.7dB (7.2dB)
8.4dB (7.9dB)
9.0dB (8.6dB)
Rate 7/8
(typical value in
parentheses)
7.0dB (6.6dB)
7.5dB (7.2dB)
8.0dB (7.7dB)
Rate 7/8
(typical value in
parentheses)
7.2dB (6.6dB)
7.7dB (7.2dB)
8.3dB (7.7dB)
Rate 7/8
(typical value in
parentheses)
6.5dB (6.0dB)
6.7dB (6.2dB)
6.9dB (6.5dB)
Rate 7/8
(typical value in
parentheses)
6.0dB (5.7dB)
6.4dB (6.1dB)
Rate 5/16 (B)
(typical value in
parentheses)
2.3dB (2.0dB)
2.6dB (2.3dB)
2.8dB (2.5dB)
14–3