CDM-625 Advanced Satellite Modem Revision 13
Appendix D MN-CDM625
D–38
Parameter
Type
(Instruction
& Qualifier)
Number of
Arguments
Description of Arguments
Response to
Command
(Instruction &
Qualifier)
Response to
Query
Inserts 10E-3 BER in the form x, where:
x = 0 (Off) or 1 (On)
(see Description of
Arguments)
Note: This command takes no arguments.
BERT Result
in bit errors
Query only.
BERT monitor results in bit errors. If bit errors exceed 9999999, then BRE=9999999.
Returns the value of the average BER in the form a.b x 10-c. First 3 bytes are the value. Byte 5 is the
exponent. Last byte is the indicator of Sync Loss. A ‘*’ in last byte means there was a loss of pattern
synchronization since last restart, but now is synchronized. A ‘_’ (space) in last byte means pattern
synchronization is achieved.
Returns 999999 if there’s no sync in BERT monitor.
Example 1: BRR=2.8E7 (BER is 2.8 x 10
-7
, and in sync)
Example 2: BRR=3.4E5* (BER is 3.4 x 10
, and there was a Sync Loss)
Defines ACM operating parameters in the form mMAT, where:
m=Minimum ModCod, range is 0 to 9, and A (for ModCod=10) or B (for ModeCod=11)
M=Maximum ModCod, range is 0 to 9, and A (for ModCod=10) or B (for ModeCod=11)
A= Defines action on remote demod unlock (0=go to minimum Tx ModCod, 1=maintain Tx ModCod)
T=Target Eb/No Margin, from 0 to 9 that is two times of the Eb/No in dB (from 0.0dB to 4.5dB).
Example: ACM=0B12
(Sets min ModCod=0, max ModCod=11, maintain Tx ModCod when remote demod unlocks,
sets Target Eb/No at 1.0dB.)
(see Description of
Arguments)
Force a hard reset of the unit in 5 seconds.
Carrier ID Enable/Disable in the form x, where:
0 = Disabled
(see Description of
Arguments)
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