Specifications

SDM-300L3 Satellite Modem Revision 0
Specifications MN/SDM300L3.IOM
15–24
15.8.7 Performance With Noise, 1544 kbps Sequential Decoder
(Optional)
Required Eb/No
BPSK and QPSK
BER 1/2 Rate 3/4 Rate 7/8 Rate
10
-3 4.8 5.2 6.0
10
-4 5.2 5.7 6.4
10
-5 5.6 6.1 6.9
10
-6 5.9 6.5 7.4
10
-7 6.3 7.0 7.9
10
-8 6.7 7.4 8.4
Note: OQPSK with Sequential is not available.
15.8.8 BER Threshold
1. The modem will have a programmable BER threshold function.
2. This allows the operator to set the threshold from 1.0 E-3 to 1.0 E-8.
3. The actions resulting from this alarm are detailed in the Monitored Faults section.