Keysight Technologies InfiniiVision 3000T X Series - :FFT:REFerence

:FFT Commands 17
Keysight InfiniiVision 3000T X-Series Oscilloscopes Programmer's Guide 355
:FFT:REFerence
(see page 1276)
Command Syntax
:FFT:REFerence <level>
<level> ::= the current reference level in NR3 format.
The :FFT:REFerence command specifies the FFT vertical value represented at
center screen.
If you set the reference level to a value outside of the legal range, the level is
automatically set to the nearest legal value.
Query Syntax
:FFT:REFerence?
The :FFT:REFerence? query returns the current reference level value for the FFT
function.
Return Format
<level><NL>
<level> ::= the current reference level 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:SCALe" on page 356
• ":FFT:SOURce1" on page 357
• ":FFT:SPAN" on page 358
• ":FFT:STARt" on page 359
• ":FFT:STOP" on page 360
• ":FFT:VTYPe" on page 361
• ":FFT:WINDow" on page 362
NOTE
The :FFT:REFerence command is equivalent to the :FFT:OFFSet command.