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CDM-600L Satellite Modem
Remote Control
Command
Arguments
(Instruction
for Command
Parameter
Type
Code and
or Response
Qualifier)
Tx FEC Type
TFT=
1 byte, value
of 0 thru 9
Tx
TMD=
1 byte, value
Modulation
of 0 thru 5
Type
Description of Arguments
to Query
Command or Query.
Tx FEC coding type, where:
0=None (uncoded, rate 1/1) with differential encoding ON
1=Viterbi
2=Viterbi + Reed-Solomon
3=Sequential
4=Sequential + Reed-Solomon
5=TCM (Trellis Code Modulation) (Forces TCR=3 2/3)
6=TCM + Reed-Solomon (Forces TCR=3 2/3)
7=Turbo (TPC)
8=None (uncoded, rate 1/1) with differential encoding OFF
9=LDPC (Requires TPC/LDPC codec)
Example: TFT=1 (which is Viterbi coding)
Command or Query.
Tx Modulation type, where:
0=BPSK
1=QPSK
2=OQPSK
3=8PSK
4=16QAM (Turbo or Viterbi+RS only)
5=8-QAM (LDPC only)(Requires TPC/LDPC codec and
FAST option
Depending on FEC type, not all of these selections will be
valid.
Example: TMD=2 (which is OQPSK)
Response to
Command
TFT=
TFT?
TFT*
TFT#
TMD=
TMD?
TMD*
TMD#
16–8
Revision 2
MN/CDM600L.IOM
Query
(Instruction
Response to Query
Code and
Qualifier)
TFT?
TFT=x
(see description of
arguments)
TMD?
TMD=x
(see description of
arguments)
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