Exfo FTB-5230S Optical Spectrum Analyzer for FTB 200 v2 Manual de usuario Pagina 511

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Referencia de instrucciones SCPI
OSA 505
Product-Specific Commands—Description
:CALCulate[1..n][:WDM]:DATA:CHANnel:
OSNR?
Description This query returns computed WDM analysis
result for signal-to-noise ratio of the selected
channel.
At *RST, this value is not available.
Syntax :CALCulate[1..n][:WDM]:DATA:CHANnel:OSNR?
Parameter(s) None
Response Syntax <Osnr>
Response(s) Osnr:
The response data syntax for <Osnr> is defined
as a <NR3 NUMERIC RESPONSE DATA>
element.
The <Osnr> response corresponds to the
computed signal-to-noise ratio.
Example(s) CALC:CHAN:DEL:ALL
CALC:CHAN:DEF "ITU_017", 203.8950 THZ
CALC:CHAN:SEL "ITU_017"
CALC:CHAN:SIGP:TYPE IPOW
CALC:CHAN:NOIS:AUTO OFF
CALC:CHAN:NOIS:TYPE IEC
<Do measurement>
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