Comtech EF Data SLM-5650A - Manual (Page 367)

SLM-5650A Satellite Modem Revision 8
Appendix C MN-SLM5650A
C–15
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
Rx FEC Code
Rate
RCR= 1 byte, value of
0 thru D
Command or Query.
Rx FEC Code Rate, where:
0 = 1/1 (Uncoded)
1 = 1/2
2 = 3/4
3 = 7/8
4 = 2/3
5 = 5/6
6 = 21/44
7 = 5/16
8 = 17/18
9 = Reserved
A = Reserved
B = .547
C = .456
D = .382
Depending on FEC type, not all selections will be valid.
Example: RCR=1 (selects Rate 1/2)
RCR=
RCR?
RCR*
RCR#
RCR? RCR=x
(see Description
of Arguments)
Rx Data Rate RDR= 10 bytes Command or Query.
Rx Data rate, in kbps, in the form xxxxxx.xxx.
Resolution = 1 bps.
Example: RDR=002047.999 (selects 2047.999 kbps) N/A RDR? RDR=xxxxxx.xxx
(see Description
of Arguments)
Rx BERT BER N/A 6 bytes Query only.
Unit returns the value of the BERT BER in the form a.b x 10
-c , where:
First three bytes are the value;
Last two bytes are the exponent.
Returns 0.0E00 if the BERT is not synchronized to a pattern.
Example: BBR=4.9E12
N/A BBR? BBR=a.bEcc
(see Description
of Arguments)
Rx BER N/A 6 bytes Query only.
Unit returns the value of the estimated corrected BER in the form a.b x 10
-cc . First
three bytes are the value. Last two bytes are the exponent. Returns 99999 if the
demodulator is unlocked.
Example: BER=4.8E03 (selects BER = 4.8 x 10
-3 )
N/A BER? BER=a.bEcc
(see Description
of Arguments)
Rx BERT Reset BRS= None Command only.
Reset Rx BERT.
Example: BRS= BRS=
BRS?
BRS*
BRS#
N/A N/A