Инструкция по эксплуатации EXFO FTB -5240S/5240BP Optical Spectrum Analyzer for FTB 500 (NS-1434)
Страница 525
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Справка по командам SCPI
OSA
519
Product-Specific Commands—Description
:CALCulate[1..n][:WDM]:DATA:CHANnel:
CenterPEAk:FREQuency?
Description
This query returns computed WDM analysis result
for peak center frequency of the selected channel.
At *RST, this value is not available.
Syntax
:CALCulate[1..n][:WDM]:DATA:CHANnel:Center
PEAk: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 peak center frequency in hertz.
Example(s)
CALC:CHAN:DEL:ALL
CALC:CHAN:DEF "ITU_08", 196.4327 THZ
<Do measurement>
CALC:DATA:CHAN:SEL "ITU_08"
CALC:DATA:CHAN:CPEA:FREQ? Returns
1.964293E+014
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