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:FUNCtion Commands 17

Keysight InfiniiVision DSOX1204A/G Oscilloscopes Programmer's Guide 295

:FUNCtion[:FFT]:SPAN

(see page 798)

Command Syntax

:FUNCtion[:FFT]:SPAN <span>

<span> ::= the current frequency span in NR3 format. Legal values are

1 Hz to 100 GHz.

If you set the frequency span to a value outside of the legal range, the

step size is automatically set to the nearest legal value.

The :FUNCtion[:FFT]:SPAN command sets the frequency span of the display (left

graticule to right graticule) when FFT (Fast Fourier Transform) is selected.

Query Syntax

:FUNCtion[:FFT]:SPAN?

The :FUNCtion[:FFT]:SPAN? query returns the current frequency span in Hertz.

Return Format

<span> ::= the current frequency span in NR3 format. Legal values are 1

Hz to 100 GHz.

See Also • "Introduction to :FUNCtion Commands" on page 291

• ":FUNCtion[:FFT]:CENTer" on page 293

• ":TIMebase:RANGe" on page 577

• ":TIMebase:SCALe" on page 579

NOTE

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

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

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

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

Keysight Technologies InfiniiVision DSOX1204A User Manual

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