Performance With Noise Turbo Product Codec (Optional; Performance With Noise, 1544 Kbps Sequential Decoder And Reed Solomon(Optional; Performance With Noise, 56 Kbps Sequential Decoder (Optional - Comtech EF Data SNM-1001L Installation And Operation Manual

SNM-1001L Satellite Modem
Specifications
A.8.4

Performance with Noise Turbo Product Codec (Optional)

BER
10 -6
10 -7
10 -8
-9
10
* 5/16 BPSK included for compatibility with other equipment but implementation
limitations prohibit optimum performance at low Eb/No. Performance is virtually error
free above 4dB Eb/No. performance below 4.0 dB Eb/No is not guaranteed for 5/16
BPSK.
A.8.5 Performance With Noise, 1544 kbps Sequential Decoder and
Reed Solomon(Optional)
A.8.6

Performance With Noise, 56 kbps Sequential Decoder (Optional)

Required Eb/No
QPSK
1/2 Rate 3/4 Rate
3.0 3.9
3.2 4.1
3.5 4.3
3.8 4.8
Required Eb/No
BPSK and QPSK
BER 1/2 Rate
10 -6 4.1
10 -7 4.2
10 -8 4.4
10 -10 5.0
Note: OQPSK with Sequential is not available.
Required Eb/No
BPSK and QPSK
BER 1/2 Rate
10 -3
10 -4 4.1
10 -5 4.5
10 -6 5.0
10 -7 5.4
10 -8 5.8
Note: OQPSK with Sequential is not available.
BPSK
21/44 Rate 5/16 Rate
2.8 *
3.1 *
3.3 *
3.7 4.0
3/4 Rate 7/8 Rate
5.6 6.7
5.8 6.9
6.0 7.1
6.3 7.5
3/4 Rate 7/8 Rate
4.6 5.5
5.1 6.1
5.5 6.6
5.9 7.3
6.4 7.8
6.8 8.4
A–20
Revision 1
MN/SNM1001L.IOM
8-PSK
3/4 Rate
7.0
7.3
7.6
8.0