:FFT Commands 17
Keysight InfiniiVision 3000T X-Series Oscilloscopes Programmer's Guide 359
:FFT:STARt
(see page 1276)
Command Syntax
:FFT:STARt <frequency>
<frequency> ::= the start frequency in NR3 format.
The :FFT:STARt command sets the start frequency in the FFT (Fast Fourier
Transform) math function's displayed range.
The FFT (Fast Fourier Transform) math function's displayed range can also be set
with the :FFT:CENTer and :FFT:SPAN commands.
Query Syntax
:FFT:STARt?
The :FUNCtion<m>:FFT:FREQuency:STARt? query returns the current start
frequency in Hertz.
Return Format
<frequency><NL>
<frequency> ::= the start frequency in NR3 format.
See Also • ":FFT:AVERage:COUNt" on page 347
• ":FFT:CENTer" on page 348
• ":FFT:CLEar" on page 349
• ":FFT:DISPlay" on page 350
• ":FFT:DMODe" on page 351
• ":FFT:OFFSet" on page 353
• ":FFT:RANGe" on page 354
• ":FFT:REFerence" on page 355
• ":FFT:SCALe" on page 356
• ":FFT:SOURce1" on page 357
• ":FFT:SPAN" on page 358
• ":FFT:STOP" on page 360
• ":FFT:VTYPe" on page 361
• ":FFT:WINDow" on page 362