EXFO FTB -5240S/5240BP Optical Spectrum Analyzer for FTB 500 (NS-1434) Benutzerhandbuch
Seite 492
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SCPI-Befehlsreferenz
484
FTB-5240S/S-P/BP
Product-Specific Commands—Description
:CALCulate[1..n][:WDM]:DATA:CHANnel:
CenterMASs:FREQuency?
Description
This query returns computed WDM analysis
result for center of mass frequency of the
selected channel.
At *RST, this value is not available.
Syntax
:CALCulate[1..n][:WDM]:DATA:CHANnel:Center
MASs:FREQuency?
Parameter(s)
None
Response Syntax
<Center>
Response(s)
Center:
The response data syntax for <Center> is
defined as a <NR3 NUMERIC RESPONSE DATA>
element.
The <Center> response corresponds to the
computed center of mass frequency in hertz.
Example(s)
CALC:CHAN:DEL:ALL
CALC:CHAN:DEF "ITU_14", 201.9873 THZ
<Do measurement>
CALC:DATA:CHAN:SEL "ITU_14"
CALC:DATA:CHAN:CMAS:FREQ? Returns
2.020066E+014
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