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Command
Arguments for
Parameter
(Instruction
Command or
Code and
Response to
Type
Qualifier)
Rx Descrambler
RDS=
1 byte
Rx Frequency
N/A
9 bytes
Offset
Rx Frequency
RFQ=
9 bytes
Appendix C
Description of Arguments
Query
Command or Query.
Rx Scrambler state, where:
0 = Off
1 = OM-73 Scrambler
2 = IESS-V.35 Scrambler
3 = Modified V.35 (Comtech EF Data Closed Network)
4 = Reed-Solomon Synchronous Scrambler
5 = IBS Overhead Synchronous Scrambler
6 = TURBO Scrambler
Depending on Modem mode, FEC type, overhead type, and RS state,
not all selections will be valid.
Example: RDS = 1 (OM-73 Scrambler On)
Query only.
Unit returns the value of the measured frequency offset of the carrier
being demodulated, where e = '<', '>', or '=' and s = '+' or '-'.
Returns >+9999999 if offset is > 9.999999 MHz
Returns <-9999999 if offset is < -9.999999 MHz
Returns =+0000200 if offset = 200 Hz
Example: RFO = +0000200
Command or Query.
Rx Frequency, 52 to 88 MHz, 104 to 176 MHz, and 950 to 2000 MHz.
Resolution = 100Hz.
Example: RFQ = 0140.9872
RDS=
RDS?
RDS*
RDS#
N/A
RFQ=
RFQ?
RFQ*
RFQ#
C–27
SLM-5650B Satellite Modem
Query
Response to
Response to
(Instruction
Command
Code and
Qualifier)
RDS?
RDS=x
(see Description
of Arguments)
RFO?
RFO=
esyyyyyyy
(see Description
of Arguments)
RFQ?
RFQ=xxxx.xxxx
(see Description
of Arguments)
MN-SLM-5650B
Revision 2
Query
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