Comtech EF Data CDM-570AL - CONFIG: Rx) Code (Code Rate); CONFIG: Rx) dem (Demodulation Type)

CDM-570A/570AL Satellite Modem with Optional Packet Processor
Revision 5
Front Panel Operation 6–30 MN-CDM570A
Rx FEC Decoder Selection
Available Rx Demodulation Type
Available Rx Code Rate
VF2S (VersaFEC-2 Short Block)
BPSK
0.489
QPSK
0.489, 0.537, 0.586, 0.611, 0.635,
0.660, 0.684, 0.733
8-ARY
0.521, 0.537, 0.562, 0.586, 0.611,
0.635, 0.660, 0.684, 0.708, 0.733
16-ARY
0.586, 0.611, 0.635, 0.660, 0.684,
0.708, 0.733, 0.757, 0.782
32-ARY
0.660, 0.684, 0.708, 0.733, 0.757,
0.782, 0.801, 0.831
ULL (Ultra Low Latency)
BPSK
Fixed at .493
QPSK
.493, .654, .734
Unc (Uncoded)
BPSK
Fixed at 1:1
QPSK
OQPSK
Refer to the preceding table, the “Rx FEC Decoder Selection” which shows the “Available Rx
Demodulation Type” and “Available Rx Code Rate” choices.
6.3.2.4.2 (CONFIG: Rx) Dem (Demodulation Type)
With VersaFEC (IP) mode selected:
Demod: BPSK QPSK OQPSK
8-PSK 16-QAM 8-QAM
With VersaFEC-2 (VF2) mode selected:
Demodulation: BPSK QPSK
8-ARY 16-ARY 32-ARY
Use the
◄ ► arrow keys to select the Rx Demodulation Type, and then press ENTER.
The “Rx FEC Decoder Selection” shows the “Available Rx Demodulation Type” and “Available Rx
Code Rate” choices. See Section 6.3.2.4.1.
6.3.2.4.3 (CONFIG: Rx) Code (Code Rate)
Rx Code Rate: 5/16 21/44
1/2 2/3 3/4 7/8 0.95 Unc
Use the
◄ ► arrow keys to select the Rx Code Rate. Press ENTER. Refer to the table in Section
6.3.2.4.1, the “Rx FEC Decoder Selection” which shows the “Available Rx Demodulation Type”
and “Available Rx Code Rate” choices.