CDM-600 Satellite Modem Revision 7
Remote Control MN/CDM600.IOM
16–8
Exception: Select DROP or D&I++ mode using TFM (Transmit Framing type) which is highest priority
Parameter
Type
Command
(Instruction
Code and
Qualifier)
Arguments
for Command
or Response
to Query
Description of Arguments
Response
to
Command
Query
(Instruction
Code and
Qualifier)
Response to Query
Tx FEC Type TFT= 1 byte, value
of 0 thru 9
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)
TFT=
TFT?
TFT*
TFT#
TFT? TFT=x
(see description of
arguments)
Tx
Modulation
Type
TMD= 1 byte, value
of 0 thru 5
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 (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)
TMD=
TMD?
TMD*
TMD#
TMD? TMD=x
(see description of
arguments)