EXFO FTB -5240S/5240BP Optical Spectrum Analyzer for FTB 500 (NS-1434) - Инструкция (Страница 521)

Справка по командам SCPI
OSA 515
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