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CDM-570/570L Satellite Modem with Optional IP Module Revision 4
Serial Remote Control MN/CDM570L.IOM
13–13
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
Rx FEC Code
Rate
RCR= 1 byte, value
of 0 thru 7
Command or Query.
Rx FEC Code Rate, where:
0 = Rate 5/16 (Turbo Only)
1 = Rate 21/44 (Turbo Only)
2 = Rate 1/2
3 = Rate 2/3 (8-PSK TCM or 8-QAM only)
4 = Rate 3/4
5 = Rate 7/8
6 = Rate 0.95 (Turbo Only)
7 = Rate 1/1 (Uncoded or No FEC)
Depending on FEC and demodulation type, not all of these
selections will be valid.
Example: RCR=1 (selects Rate 3/4)
RCR=
RCR?
RCR*
RCR#
RCR+
RCR? RCR=x
(see description of
arguments)
Rx Data Rate RDR= 8 bytes Command or Query.
Rx Data Rate, in kbps, between 2.4 kbps to 9.98 Mbps.
Resolution=1 bps
Example: RDR=2047.999
RDR=
RDR?
RDR*
RDR#
RDR? RDR=xxxx.xxx
(see description of
arguments)
Rx Symbol
Rate
N/A 8 bytes Query only.
Rx Symbol rate, in ksymbols/sec, between 4.8 ksps and 3.00 Msps
Resolution = 1 sps.
Example: RSR=2047.999 (which is 2047.999 ksymbols/sec)
N/A RSR? RSR=xxxx.xxx
(see description of
arguments)
Rx Spectrum
Invert
RSI= 1 byte, value
of 0 or 1
Command or Query.
Rx Spectrum Invert, where:
0=Normal
1=Rx Spectrum Invert
Example: RSI=0 (selects Normal)
RSI=
RSI?
RSI*
RSI#
RSI? RSI=x
(see description of
arguments)
Rx
Descrambler
RDS= 1 byte, value
of 0, 1 or 2
Command or Query.
Rx Descrambler state, where:
0=Off
1=On (default descrambler type)
2 = On - IESS-315 (Turbo only)
Example: RDS=1 (Scrambler On)
RDS=
RDS?
RDS*
RDS#
RDS? RDS=x
(see description of
arguments)
Priority System = ITF (Highest priority) , FRM, RFT, RMD, RCR, and RDR (Lowest Priority), indicated by shading. Any change to a higher
priority parameter can override any of the parameters of lower priority.