EXFO FTB -5240S/5240BP Optical Spectrum Analyzer for FTB 500 (NS-1434) - Manual (Page 461)

SCPI Command Reference
Optical Spectrum Analyzer 453
Product-Specific Commands—Description
:CALCulate[1..n]:CHANnel:DEFault:
NFOSnr?
Description This query returns the calculation method to use
for Noise for OSNR value.
At *RST, this value is FIXEDIEC.
Syntax :CALCulate[1..n]:CHANnel:DEFault:NFOSnr?
Parameter(s) None
Response Syntax <NoiseForOsnr>
Response(s) NoiseForOsnr:
The response data syntax for <NoiseForOsnr> is
defined as a <CHARACTER RESPONSE DATA>
element.
Display the Noise for OSNR value for the default
channel. The returned value can be either
FIXEDIEC, INBAND or INBANDNF.
Example(s) CALC:CHAN:DEFault:NFOSnr?
See Also CALCulate[1..n]:CHANnel:DEFault:NFOSnr