Mocomtech CDM-570 - Manual (Page 256)

CDM-570/570L Satellite Modem with Optional IP Module Revision 4
Serial Remote Control MN/CDM570L.IOM
13–22
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
Initialize
Statistics
Pointer ISP= None Command only.
Resets internal pointer to allow RNS? queries to start at the
beginning of the statistics log.
ISP=
ISP# N/A N/A
Rx Eb/No N/A 4 bytes 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)
For values greater than 16.0 dB, the reply will be: EBN=+016 N/A EBN? EBN=xxxx
(see description of
arguments)
Rx Signal
Level N/A 4 bytes Query Only.
Unit returns the value of the Rx signal level, in dBm, between –5
and –99 dBm, in the form: ccxx, where:
cc = code:
GT=Greater Than
LT=Less Than
== is equal to
xx = value (the ‘-‘ sign is implied)
Examples:
RSL=LT99 (Rx signal level is less than -99 dBm)
RSL===41 (Rx signal level is equal to -41 dBm)
N/A RSL? RSL=ccxx
(see description
of arguments)
Rx Frequency
Offset N/A 6 bytes Query only.
Unit returns the value of the measured frequency offset of the
carrier being demodulated, in the form sxxx.x, where:
s = sign (+ or - character)
xxx.x = value (range from
± 0 to ± 200 kHz, 100 Hz resolution)
Returns +999.9 if the demodulator is unlocked.
Example: RFO=+002.3 (which is + 2.3 kHz)
N/A RFO? RFO=sxxx.x
(see description
of arguments)
Buffer Fill
State N/A 2 bytes Query only.
Unit returns the 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)