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CDM-600L Satellite Modem
Remote Control
Command
Arguments
(Instruction
for Command
Parameter
Type
Code and
or Response
Qualifier)
Rx Eb/No
N/A
4 bytes
Rx Signal
N/A
5 bytes
Level
Rx Frequency
N/A
5 bytes
Offset
Buffer Fill
N/A
2 bytes
State
Rx BER
N/A
5 bytes
Description of Arguments
to Query
Query only.
Unit returns the value of Eb/No, between 0 and 16 dB,
resolution 0.1 dB.
Returns 99.9 if demod is unlocked.
Example EBN=12.3 (which is Eb/No = 12.3 dB)
Returns +016 for values greater than 16 dB.
Query Only.
Unit returns the value of the Rx signal level, in dBm, between –20
and –63 dBm, in the form: ccsxx, where
cc = code:
GT is Greater Than
LT is Less Than
== is equal to
s is sign
xx is Number
Examples:
RSL=LT-99
RSL===-41
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)
Query only.
Unit returns the value of the buffer fill state, between 1 and 99%.
Returns 00 if demodulator is unlocked.
Example: BFS=33 (which is 33%)
Query only.
Units returns the value of the estimated corrected BER in the form
-c
a.b x 10
. 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
Response to
Command
N/A
N/A
N/A
N/A
N/A
-3
)
16–29
Revision 2
MN/CDM600L.IOM
Query
(Instruction
Response to Query
Code and
Qualifier)
EBN?
EBN=xxxx
(see description of
arguments)
RSL?
RSL=ccsxx
(see description
of arguments)
RFO?
RFO=xxxxx
(see description
of arguments)
BFS?
BFS=xx
(see description
of arguments)
BER?
BER=a.bEc
(see description
of arguments)
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