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CDM-625 Advanced Satellite Modem
Appendix D
Command
Parameter
Number of
(Instruction
Type
Arguments
& Qualifier)
CnC PSDR
N/A
5 bytes
CnC-APC Bit
N/A
4 bytes
Error Rate
CnC-APC BER
ABR=
None
Reset
CnC-APC
N/A
4 bytes
Frame Error
Rate
CnC-APC FER
AFR=
None
Reset
CnC-APC
APC=
1 byte, 0 thru 2 Command only.
Activate/Suspe
nd
Description of Arguments
Query only.
When CnC is enabled and the modem is locked, ratio (in dB) between the interferer and the desired power
is monitored. The precision is 0.1dB.
Example 1: PSD=+02.8 (interferer > desired) (format = sdd.d)
Example 2: PSD=999.9 (not locked or CnC not enabled)
Example 3: PSD=AUTO (in CnC-APC mode)
Query only.
Unit returns the value of CnC-APC BER in the form ax10
First byte is the value, last two bytes are the exponent.
Returns 9999 if modem is not in CnC-APC mode or there is an APC frame sync error.
BER is measured in frame UW.
Example: ABE=8E-5
Command only.
Restart CnC-APC BER measurement.
Note: This command takes no arguments.
Query only.
Unit returns the value of CnC-APC FER in the form ax10
First byte is the value, last two bytes aret he exponent.
Returns 9999 if modem is not in CnC-APC mode or there is an APC frame sync error.
Example: Example: AFE=8E-2
Command only.
Restart CnC-APC FER measurement.
Note: This command takes no arguments.
Used to activate or suspend APC operation, in format APC=x, where:
0 = no action
1 = Activate APC
2 = Suspend APC
, where:
-3
-3
, where:
D–54
Revision 13
MN-CDM625
Query
Response to
Response to
(Instruction &
Command
Qualifier)
N/A
PSD?
PSD=xxxxx
(see Description of
Arguments)
N/A
ABE?
ABE=xxxx
ABR=
N/A
N/A
N/A
AFE?
AFE=xxxx
AFR=
N/A
N/A
APC=
N/A
N/A
Query
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