Retrieving selected channel results (wdm) – EXFO FTB -5240S/5240BP Optical Spectrum Analyzer User Manual
Page 617

SCPI Command Reference
OSA
611
Examples on Using the SCPI Commands
Retrieving Selected Channel Results (WDM)
Command Sequence
Comments
CALC:WDM:DATA:CHAN:STAT:QUES:B
IT9:COND?
Check for channel signal saturation.
CALC:WDM:DATA:CHAN:STAT:QUES:B
IT10:COND?
Check if the channel was detected; signal is
present.
CALC:WDM:DATA:CHAN:STAT:QUES:B
IT11:COND?
Optional: for InBand noise measurement,
check if there is sufficient discrimination for
OSNR calculation.
CALC:WDM:DATA:CHAN:CENT:WAV?
Optional: Query configured channel center
wavelength.
CALC:WDM:DATA:CHAN:CMAS:WAV? Query computed channel center of mass
wavelength.
CALC:WDM:DATA:CHAN:CPEA:WAV?
Query computed channel peak center
wavelength.
CALC:WDM:DATA:CHAN:SIGP:TYPE?
Optional: Query computed signal power type.
CALC:WDM:DATA:CHAN:SIGP?
Query computed channel signal power.
CALC:WDM:DATA:CHAN:NOIS:AUTO? Optional: Query auto noise (i-InBand) active.
CALC:WDM:DATA:CHAN:NOIS:TYPE? Optional: Query computed noise measurement
type.
CALC:WDM:DATA:CHAN:NOIS?
Query computed channel noise level.
CALC:WDM:DATA:CHAN:OSNR?
Query computed channel signal to noise ratio.
CALC:WDM:DATA:CHAN:BAND1:RLEV
?
Optional: Query bandwidth position 1.
CALC:WDM:DATA:CHAN:BAND1:WAV? Query computed channel bandwidth at
position 1.
CALC:WDM:DATA:CHAN:BAND2:RLEV
?
Optional: Query bandwidth position 2.