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CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier®
Appendix C
Command
Arguments
Parameter
(Instruction
for Command
Type
Code and
or Response
Qualifier)
to Query
TX Data
TDR=
9 bytes
Rate
TX
TFQ=
9 bytes
Frequency
TX FEC
TFT=
1 byte, value
Type
of 0 though 7
TX
TMD=
1 byte, value
Modulation
of 0 though 5
Type
Description of Arguments
Command or Query.
TX Data rate, in kbps, between 32 kbps and 20 Mbps depending
upon code rate and modulation scheme, in the form xxxxx.xxx.
Resolution=1 bps.
(See Chapter 5. FRONT PANEL OPERATION for the valid rates)
Query ONLY if Interface Type is Quad Drop & Insert (ITF=D).
Example: TDR=02047.999 (2047.999 kbps)
Command or Query.
TX Frequency in the form xxxx.xxxx, where:
0950.0000 to 1950.0000 MHz (for L-Band units) or
0500.0000 to 0090.0000 and 0100.0000 to 0180.0000 MHz (for
70/140 MHz units)
Resolution=100 Hz
Example: TFQ=0950.9872
Command or Query.
TX FEC coding type in the form x, where:
0=Reserved
1=Viterbi
2=Viterbi + Reed-Solomon
3=Reserved
4=Reserved
5=TCM+Reed-Solomon (Forces TCR=3 2/3)
6=Turbo
7=Reserved
Command or Query.
TX Modulation Type in the form x, where:
0=BPSK
1=QPSK
2=Reserved
3=8-PSK
4=16-QAM (Turbo or Viterbi + RS only)
5=Reserved
Depending on FEC type, not all of these selections will be valid.
Example: TMD=1 (QPSK)
Response to
Command
TDR=
TDR?
TDR*
TDR#
TDR$
TDR^
TDR@
TFQ=
TFQ?
TFQ*
TFQ#
TFQ$
TFQ^
TFQ@
TFT=
TFT?
TFT*
TFT#
TFT$
TFT^
TFT@
TMD=
TMD?
TMD*
TMD#
TMD$
TMD^
TMD@
C–8
Revision 7
MN/CDMQX.IOM
Query
(Instruction
Response to Query
Code and
Qualifier)
TDR?
TDR=xxxx.xxx
(see Description of
Arguments)
TFQ?
TFQ=xxxx.xxxx
(see description
arguments)
TFT?
TFT=x
(see description
arguments)
TMD?
TMD=x
(see Description of
Arguments)
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