Comtech EF Data SNM-1001L - Manual (Page 258)

SNM-1001L Satellite Modem Revision 1
Specifications MN/SNM1001L.IOM
A–20
A.8.4 Performance with Noise Turbo Product Codec (Optional)
Required Eb/No
QPSK BPSK 8-PSK
BER 1/2 Rate 3/4 Rate 21/44 Rate 5/16 Rate 3/4 Rate
10-6 3.0 3.9 2.8 * 7.0
10-7 3.2 4.1 3.1 * 7.3
10-8 3.5 4.3 3.3 * 7.6
10 -9 3.8 4.8 3.7 4.0 8.0
* 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)
Required Eb/No
BPSK and QPSK
BER 1/2 Rate 3/4 Rate 7/8 Rate
10-6 4.1 5.6 6.7
10-7 4.2 5.8 6.9
10-8 4.4 6.0 7.1
10-10
5.0 6.3 7.5
Note: OQPSK with Sequential is not available.
A.8.6 Performance With Noise, 56 kbps Sequential Decoder (Optional)
Required Eb/No
BPSK and QPSK
BER 1/2 Rate 3/4 Rate 7/8 Rate
10-3 4.6 5.5
10-4 4.1 5.1 6.1
10-5 4.5 5.5 6.6
10-6 5.0 5.9 7.3
10-7 5.4 6.4 7.8
10-8 5.8 6.8 8.4
Note: OQPSK with Sequential is not available.