
272 Agilent InfiniiVision 3000 X-Series Oscilloscopes Programmer's Guide
15 :FUNCtion Commands
:FUNCtion:CENTer
(see page 860)
Command Syntax
:FUNCtion:CENTer <frequency>
<frequency> ::= the current center frequency in NR3 format. The range
of legal values is from 0 Hz to 25 GHz.
The :FUNCtion:CENTer command sets the center frequency when FFT
(Fast Fourier Transform) is selected.
Query Syntax
:FUNCtion:CENTer?
The :FUNCtion:CENTer? query returns the current center frequency in
Hertz.
Return Format
<frequency><NL>
<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 Commands" on page 271
• ":FUNCtion:SPAN" on page 284
• ":TIMebase:RANGe" on page 633
• ":TIMebase:SCALe" on page 635
After a *RST (Reset) or :AUToscale command, the values returned by the
:FUNCtion:CENTer? and :FUNCtion:SPAN? queries depend on the current :TIMebase:RANGe
value. Once you change either the :FUNCtion:CENTer or :FUNCtion:SPAN value, they no
longer track the :TIMebase:RANGe value.
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