Инструкция по эксплуатации EXFO FTB -5240S/5240BP Optical Spectrum Analyzer for FTB 500 (NS-1434)

Страница 419

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Справка по командам SCPI

OSA

413

Product-Specific Commands—Description

DEFault allows the instrument to select a value
for the <Distance> parameter.

The <Distance> parameter corresponds to a valid
distance in meter from peak to center of noise
region.

The
CALCulate[1..n][:WDM]:CHANnel:AUTO:NOISe:
DISTance[:WAVelength]? MIN and
CALCulate[1..n][:WDM]:CHANnel:AUTO:NOISe:
DISTance[:WAVelength]? MAX queries can be
used to determine valid distance values.

Example(s)

CALC:WDM:CHAN:AUTO:NOIS:TYPE POLY5
CALC:WDM:CHAN:AUTO:NOIS:DIST:WAV 40.0
NM
CALC:WDM:CHAN:AUTO:NOIS:DIST:WAV?
Returns 4.000000E-008

Notes

Custom noise measurement distance is applied
only if selected noise type is POLYnomial5.

See Also

:CALCulate[1..n][:WDM]:CHANnel:AUTO
:CALCulate[1..n][:WDM]:CHANnel:AUTO:NOISe:
DISTance:FREQuency
:CALCulate[1..n][:WDM]:CHANnel:AUTO:NOISe:
DISTance[:WAVelength]?

:CALCulate[1..n][:WDM]:CHANnel:AUTO:NOISe:
WIDTh[:WAVelength]
:CALCulate[1..n][:WDM]:CHANnel:AUTO:NOISe:
TYPE
:CALCulate[1..n][:WDM]:CHANnel:NOISe:DISTa
nce[:WAVelength]

:CALCulate[1..n][:WDM]:CHANnel:AUTO:

NOISe:DISTance:[WAVelength]

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