Cisco D9865 - DVB-S EbNo (CN) Ratio

A-3
Cisco D9865 Satellite Receiver Software Version 2.20 Installation and Configuration Guide
OL-31085-01
Appendix A Technical Specifications
DVB-S Eb/No (C/N) Ratio
DVB-S Eb/No (C/N) Ratio
Note The D9865 receiver displays the C/N Ratio.
C/N = Eb/No + 10 log (2 x FEC X 188/204)
DVB-S2 Error Rate Performance ES/No (C/N) Ratio
Convolutional FEC Rate
Eb/No Ratio (dB) in Linear
Channel and IF Loop
configuration
C/N at DVB Threshold (BW =
Symbol Rate)
1/2 4.5 4.1
2/3 5.0 5.9
3/4 5.5 6.9
5/6 6.0 7.9
7/8 6.4 8.5
Mode
Simulated Es/No (dB) for FEC
Frame length = 64,800
Typical Performance (dB) in
Linear Channel and IF Loop
Configuration
QPSK 1/2 1.00 1.2
QPSK 3/5 2.23 2.4
QPSK 2/3 3.10 3.2
QPSK 3/4 4.03 4.2
QPSK 4/5 4.68 4.8
QPSK 5/6 5.18 5.3
QPSK 8/9 6.20 6.4
QPSK 9/10 6.42 6.6
8PSK 3/5 5.50 5.8
8PSK 2/3 6.62 6.8
8PSK 3/4 7.91 8.1
8PSK 5/6 9.35 9.6
8PSK 8/9 10.69 10.9
8PSK 9/10 10.98 11.3