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

Page 617

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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.