A.6.2 Demodulator - Comtech EF Data CDM-710G Installation And Operation Manual

High-speed satellite modem
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CDM-710G High-Speed Satellite Modem
Remote Control
Command
Arguments for
Parameter
(Instruction
Command or
Type
Code and
Response to
Qualifier)
Tx Carrier State
TXO=
1 byte

A.6.2 Demodulator

Priority System = (Highest priority) RMD, RCR, and (Lowest Priority) RSR. Any change to a higher priority parameter can override any of the
parameters of lower priority.
Command
Arguments for
Parameter
(Instruction
Command or
Type
Code and
Response to
Qualifier)
Rx Modulation
N/A
1 byte
Type
Rx FEC Code
N/A
1 byte
Rate
Description of Arguments
Query
Command or Query.
Tx Carrier State, where:
0=OFF due to front panel or remote control command
1=ON
Example: TXO=1 (Tx Carrier ON)
Description of Arguments
Query
Query only.
Rx Modulation type, where:
0=QPSK
1=8PSK
2=Reserved
3=16APSK
4=32APSK
Example: RMD=1 (which is 8PSK)
*NOTE: This command is query-only because the demodulation type is
automatically detected, but if the unit is not locked, the query returns 'x'.
Query only.
Rx Code Rate, where:
0 = Rate 3/4
1 = Reserved
2 = Rate 3/5
3 = Rate 4/5
4 = Rate 5/6
5 = Rate 8/9
6 = Rate 9/10
7 = Rate 2/3
8 = Rate 1/2
Example: RCR=0 (which is Rate 3/4)
*NOTE: This command is query-only because the code rate is
automatically detected, but if the unit is not locked, the query returns 'x'.
TXO=
TXO?
TXO*
TXO#
RMD?
RMD*
RMD#
RCR?
RCR*
RCR#
A–15
MN-CDM710G
Query
Response to
(Instruction
Response to Query
Command
Code and
Qualifier)
TXO?
TXO=x
Query
Response to
(Instruction
Response to Query
Command
Code and
Qualifier)
RMD?
RMD=x
RCR?
RCR=x
Revision 1

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