Keysight Technologies InfiniiVision 3000T X Series

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378 Keysight InfiniiVision 3000T X-Series Oscilloscopes Programmer's Guide

18 :FUNCtion<m> Commands

:FUNCtion<m>[:FFT]:CENTer

(see page 1276)

Command Syntax

:FUNCtion<m>[:FFT]:CENTer <frequency>

<m> ::= 1 to (# math functions) in NR1 format

<frequency> ::= the current center frequency in NR3 format. The range

of legal values is from 0 Hz to 25 GHz.

The :FUNCtion<m>[:FFT]:CENTer command sets the center frequency when FFT

(Fast Fourier Transform) is selected.

Query Syntax

:FUNCtion<m>[:FFT]:CENTer?

The :FUNCtion<m>[:FFT]:CENTer? query returns the current center frequency in

Hertz.

Return Format

<frequency> ::= the current center frequency in NR3 format. The range

of legal values is from 0 Hz to 25 GHz.

See Also • "Introduction to :FUNCtion<m> Commands" on page 368

• ":FUNCtion<m>[:FFT]:SPAN" on page 381

• ":TIMebase:RANGe" on page 999

• ":TIMebase:SCALe" on page 1001

NOTE

After a *RST (Reset) or :AUToscale command, the values returned by the

:FUNCtion<m>[:FFT]:CENTer? and :FUNCtion<m>:SPAN? queries depend on the current

:TIMebase:RANGe value. Once you change either the :FUNCtion<m>[:FFT]:CENTer or

:FUNCtion<m>:SPAN value, they no longer track the :TIMebase:RANGe value.

Keysight Technologies InfiniiVision 3000T X Series - :FUNCtion<m>[:FFT]:CENTer