Comtech EF Data CDM-625 Installation And Operation Manual page 269

CDM-625 Advanced Satellite Modem
Remote Control
Command
Parameter Number of
(Instruction
Type Arguments
& Qualifier)
Tx TMD= 1 byte, value of
Modulation 0 thru 5
Type
Tx FEC TCR= 1 byte, value of
Code Rate 0 thru 7
Description of Arguments
Command or Query.
Tx Modulation type, where:
0=BPSK
1=QPSK
2=OQPSK
3=8-PSK
4=16-QAM (Turbo or Viterbi + RS only)
5=8-QAM (TPC/LDPC only) (Need Codec & FAST option)
6=Reserved
7=Reserved
8=Reserved
Depending on FEC type, not all of these selections will be valid.
Example: TMD=2 (which is OQPSK)
Command or Query
Tx FEC Code Rate, where:
0=Rate 1/2
1=Rate 3/4
2=Rate 7/8
3=Rate 2/3 (8-PSK TCM or LDPC only)
4=Rate 1/1 (Uncoded or No FEC)
5=Rate 21/44 (Turbo Only)
6=Rate 5/16 (Turbo Only)
7=Rate 0.95 (Turbo Only) (aka 17/18)
8=Reserved
9=Reserved
A-Z=Reserved
Depending on FEC type, not all of these selections will be valid.
Example: TCR=1 (which is Rate 3/4)
D–9
Revision 1
MN-0000036 (Ref MN/CDM625.IOM)
Query
Response to
(Instruction Response to Query
Command
& Qualifier)
TMD= TMD? TMD=x
TMD? (see description of
arguments)
TMD*
TMD#
TCR= TCR? TCR=x
TCR? (see description of
arguments)
TCR*
TCR#