Comtech EF Data CDD-562AL Installation And Operation Manual page 189

CDD-562AL/564A/L Multi-Channel Demodulator
HTTP (Web Server) Interface
De-Scrambler
Select from: On (Normal), Off or IESS-315
Sweep Width
Enter the value in kHz.
Eb/No Alarm Pt
Enter the Eb/No Alarm Point value in dB.
FEC Type
Select the Forward Error Correction type:
•
Uncoded
•
TPC
•
VersaFEC
•
ULL
Demodulation Type
Select the Demodulation type:
•
BPSK
•
QPSK
•
8PSK
•
16QAM
•
8QAM
FEC Code Rate
Select the Forward Error Correction code rate.
5/16* VersaFEC CCM BPSK 0.488
21/44*
1/2 VersaFEC CCM QPSK 0.533
VersaFEC CCM QPSK 0.631
3/4 VersaFEC CCM QPSK 0.706
7/8 VersaFEC CCM QPSK 0.803
0.95*
1/1***
* means Turbo only
*** means uncoded or no FEC
VersaFEC CCM 8-QAM 0.576
VersaFEC CCM 8-QAM 0.642
VersaFEC CCM 8-QAM 0.711
VersaFEC CCM 8-QAM 0.780
VersaFEC CCM 16-QAM 0.644
VersaFEC CCM 16-QAM 0.731
VersaFEC CCM 16-QAM 0.780
VersaFEC CCM 16-QAM 0.829
VersaFEC CCM 16-QAM 0.853
10–19
MN-CDD562AL564AL
VersaFEC ULL BPSK 0.493
VersaFEC ULL QPSK 0.493
VersaFEC ULL QPSK 0.654
VersaFEC ULL QPSK 0.734
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