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

Страница 525

Advertising
background image

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

Advertising