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C.6.4 modem, unit commands / queries – Comtech EF Data SLM-5650A User Manual

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SLM-5650A Satellite Modem

Revision 8

Appendix C

MN-SLM5650A

C–21

C.6.4 Modem, Unit Commands / Queries

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

Buffer Fill State N/A

2 bytes

Query only.
xx = value of the buffer fill state, between 1 to 99%.
Returns 00 if demodulator is unlocked.
Example: BFS=33 (selects 33%)

N/A

BFS?

BFS=xx

(see Description

of Arguments)

Clear All Stored

Events

CAE=

None

Command only.
Forces the software to clear the software events log.
Note: This command takes no arguments
Example: CAE=

CAE=

CAE?

CAE*

CAE#

N/A

N/A

Clear All Stored

Statistics

CAS=

None

Command only.
Forces the software to clear the software statistics log.
Note: This command takes no arguments
Example:
CAS=

CAS=

CAS?

CAS*

CAS#

N/A

N/A

Carrier-in-

Carrier (CnC)

Frequency

Offset Range

CCF=

6 bytes

Command or Query.
CnC Sweep Frequency range from 0 to 60.000 kHz
Example: CCF=60.000

CCF=

CCF?

CCF*

CCF#

CCF?

CCF=xx.xxx

(see Description

of Arguments)

Carrier-in-

Carrier (CnC)

Delay Monitor

N/A

6 bytes

Query only.
When CnC is enabled and locked, the delay of the interferer is readable in

microseconds.
Example 1: CDM=229500 (229.5 mSec)

Example 2: CDM=999999 (not locked or CnC not enabled)

N/A

CDM?

CDM=xxxxxx

(see Description

of Arguments)

Carrier-in-

Carrier (CnC)

Frequency

Offset Monitor

N/A

6 bytes

Query only.
When CnC is enabled and locked, the estimated frequency offset between the

desired signal and the interferer is readable in kHz.
Example 1: CFM=+001.0 (1 kHz)

Example 2: CFM=9999.9 (not locked or CnC not enabled)

N/A

CFM?

CFM=xxxx.x

(see Description

of Arguments)