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Comtech EF Data CDM-625A - Home > Modem > Modem TX

Comtech EF Data CDM-625A
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CDM-625A Advanced Satellite Modem MN-CDM625A
Telnet Command Line Interface (CLI) Operation Revision 4
9–24
9.3.3.2 Home > Modem > Modem TX
Open the Modem TX page from the Modem submenu. This page contains the following options:
Hot
Key
Dialog Window Option Entry
A
Tx FEC Type
Use the ↑↓ arrow keys to select:
None Diff Enc On
Viterbi
Viterbi Reed-Solomon
Sequential
Sequential Reed-Solomon
TCM
TCM Reed-Solomon
TPC
None Diff Enc Off
LDPC
VersaFEC
ULL
VersaFEC-2 Long Block
VersaFEC-2 Short Block
B Tx Mod Type
Use the ↑↓ arrow keys to select:
BPSK
QPSK
OQPSK
8PSK
16QAM
8QAM
8-ARY (VFEC-2)
16-ARY (VFEC-2)
32-ARY (VFEC-2)
C Tx FEC Code Rate
Use the ↑↓ arrow keys to select the Tx FEC Code Rate.
See the table provided in Sect. 6.2.1.3.5 CONFIG: Tx
Mod
(Chapter 6. FRONT PANEL OPERATION) for the list of available
FEC Rate Choices.
D Tx Data Rate Enter a value from 18.000 to 25000.000 Kbps
E
Tx Symbol Rate Enter a value from
18.000
to
25000.000
Ksps
F Tx Frequency
Enter a value as follows:
Range 1From 50.0000 to 180.0000 MHz
Range 2 From 950.0000 to 2250.0000 MHz
G Tx Spectrum Invert Use the ↑↓ arrow keys to select Normal or Inverted
H
Tx Scrambler Use the
↑↓
arrow keys to select
Off
,
Normal
, or
IESS315

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