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

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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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