Cisco D9865 - DVB-S EbNo (CN) Ratio

A-4 D9865 Satellite Receiver Installation and Operation Guide 4035197 Rev C
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).
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