EXFO FTB -5240S/5240BP Optical Spectrum Analyzer for FTB 500 (NS-1434) - Инструкция (Страница 551)

Справка по командам SCPI
OSA 545
Product-Specific Commands—Description
:CALCulate[1..n][:WDM]:DATA:OSNR:
MEAN?
Description This query returns computed WDM analysis
global result for mean signal-to-noise ratio.
At *RST, this value is not available.
Syntax :CALCulate[1..n][:WDM]:DATA:OSNR:MEAN?
Parameter(s) None
Response Syntax <Mean>
Response(s) Mean:
The response data syntax for <Mean> is defined
as a <NR3 NUMERIC RESPONSE DATA>
element.
The <Mean> response corresponds to the
computed mean signal-to-noise ratio.
Example(s) <Do measurement>
UNIT:RAT DB
CALC:WDM:DATA:OSNR:MEAN? Returns
4.471000E+001
Notes Special NAN (not a number) value
-2251799813685248 is returned if analysis result
could not be computed.
See Also :CALCulate[1..n][:WDM]:DATA:OSNR:FLATness
?
:CALCulate[1..n][:WDM]:DATA:SIGnalPower:FLA
Tness?
:CALCulate[1..n][:WDM]:DATA:SIGnalPower:ME
AN?
:CALCulate[1..n][:WDM]:DATA:TPOWer?