SLM-5650 Satellite Modem
Revision
1
Remote Control
MN/SLM5650.IOM
B–23
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
Eb/No Alarm
Point
EBA=
4 bytes
Command or Query.
Eb/No alarm point in dB, with a range between 0.1 and 20 dB.
Resolution=0.1 dB
Example: EBA=12.3
EBA=
EBA?
EBA*
EBA#
EBA? EBA=xx.x
(see description of
arguments)
Rx Eb/No
N/A
4 bytes
Query only.
Unit returns the value of Eb/No, between 0 and 20 dB,
resolution 0.1 dB.
Returns 99.9 if demod is unlocked.
Example EBN=12.3 (which is Eb/No = 12.3 dB)
For values greater than 20.0 dB, the reply will be: EBN=+020
N/A EBN? EBN=xxxx
(see description of
arguments)
Rx Signal
Level
N/A
5 bytes
Query Only.
Unit returns the value of the Rx signal level, in dBm, b10.0
and –60.0 dBm, in the form: sxx.x
Examples:
RSL=+10.0
RSL=-60.0
N/A RSL? RSL=sxx.x
(see description
of arguments)
Rx Frequency
Offset
N/A
5 bytes
Query only.
Unit returns the value of the measured frequency offset of the carrier
being demodulated. Values range from
±
0 to
±
30 kHz, 100 Hz
resolution.
Returns 99999 if the demodulator is unlocked.
Example: RFO=+02.3 (which is + 2.3 kHz)
N/A RFO? RFO=xxxxx
(see description
of arguments)
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 (which is 33%)
N/A BFS? BFS=xx
(see description
of arguments)
Rx BER
N/A
5 bytes
Query only.
Unit returns the value of the estimated corrected BER in the form
a.b x 10
-c
. First three bytes are the value. Last two bytes are the
exponent. Returns 99999 if the demodulator is unlocked.
Example: BER=4.8E3 (which is BER = 4.8 x 10
-3
)
N/A BER? BER=a.bEc
(see description
of arguments)
