Comtech EF Data CDM-700 - Manual (Page 163)

CDM-700 High Speed Satellite Modem Revision 5
Remote Control MN/CDM700.IOM
11–13
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 Type N/A 1 byte Query only.
Rx FEC Type, where:
0=Turbo
Example: RFT=0 (which is Turbo coding)
N/A RFT? RFT=x
(same format
as command argument)
Rx Demod
type RMD= 1 byte Command or Query.
Rx Demodulation, where:
0=QPSK
1=8PSK
2=16QAM
3=Reserved
4=64QAM
Depending on FEC type, not all of these selections will be valid.
Example: RMD=2 (selects 16QAM)
RMD=
RMD?
RMD*
RMD# RMD? RMD=x
(see description of
arguments)
Rx FEC Code
Rate RCR= 1 byte Command or Query.
Rx FEC Code Rate, where:
0 = Rate 3/4
1 = Rate 7/8
Depending on FEC type, not all of these selections will be valid.
Example: RCR=0 (selects Rate 3/4)
RCR=
RCR?
RCR*
RCR# RCR? RCR=x
(see description of
arguments)
Rx Data Rate RDR= 10 bytes Query only.
Composite Rx Data Rate, in Mbps.
Resolution=1 bps
Example: RDR=002.047999 (which is 2.047999 Mbps)
N/A RDR? RDR=xxx.xxxxxx
(see description of
arguments)
Rx Alpha
Rolloff RAR= 1 byte Command or Query
Rx Alpha Rolloff, where:
1 = 25%
2 = 35%
Example: RAR=1 (which is a Rx Alpha Rolloff of 25%)
RAR=
RAR?
RAR*
RAR# RAR? RAR=x
(see description of
arguments)
Priority System = ITF (Highest priority), RFT, RMD, and RCR (Lowest Priority), indicated by shading. Any change to a higher priority
parameter can override any of the parameters of lower priority.