Info: Rx - Comtech EF Data CDM-425 Installation And Operation Manual

Advanced satellite modem (18 kbps – 25 mbps)
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6.2.4.5

Info: Rx

Rx:0070.0000MHz
VF2L 01544.000 QPSK
This screen displays the following information:
Item
Rx Frequency
Eb/No
Top line
Sweep Range
RSI
Decoder
Data Rate
Demodulation
Bottom
line
FEC Rate
Descrambler
Front Panel Operation
02.0dB +-30 RSI=N
.489
xxxx.xxxx MHz
12.3 dB (Alarm Point)
Up to ± 32 kHz
RSI = Rx Spectral Inversion, I=Inverted (on), N=Not inverted (off
FEC type: VFEC, ULL, VF2L, VF2S
xxxxx.xxx kbps (an asterisk * indicates that the data sense is inverted)
BPSK, QPSK, 8-QAM, 16-QAM, 8-ARY, 16-ARY, 32-ARY
BPSK: Fixed at 0.488
QPSK: 0.533, 0.631, 0.706, 0.803
VFEC
8-QAM (FAST option): 0.576, 0.642, 0.711, 0.780
16-QAM (FAST option): 0.644, 0.731, 0.780, 0.829, 0.853
BPSK: Fixed at 0.493
ULL
QPSK: 0.493, 0.654, 0.734
BPSK: Fixed at 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, 0.770, 0.684,
VF2L
0.708, 0.733
or
16-ARY: 0.586, 0.611, 0.635, 0.660, 0.684, 0.708, 0.733, 0.757,
VF2S
0.782
32-ARY: 0.660, 0.684, 0.708, 0.733, 0.757, 0.782, 0.801, 0.831,
0.855, 0.879
Scrm, None, or IESS
6–90
CDM-425 Advanced Satellite Modem
Scrm
Configuration Setting
Revision 0
MN-CDM-425

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