Comtech EF Data SDM-9000 - Manual (Page 216)

Options SDM-9000 Satellite Modem
A–30 Rev. 4
10 -4
10
-3
10 -5
10
-6
BER
10
-7
10 -9
10
-8
10 -10
3.0 4.0 5.0 6.0
E
b
/N
0
(dB)
7.0 8.0 9.0 10.0 11.0
10
-2
1/2 Rate
Specification
3/4 Rate 7/8 Rate
Figure A-22. QPSK (1/2, 3/4, 7/8 Rates) with Reed-Solomon (DVB)