5-103
IM DLM4038-17EN
Commands
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App
Index
:FFT<x>:UNIT[:DEFine]
Function
Sets or queries an FFT computation unit.
Syntax
:FFT<x>:UNIT[:DEFine] {<String>}
:FFT<x>:UNIT:DEFine?
<x> = 1 to 2
Example
:FFT1:UNIT:DEFINE "EU"
:FFT1:UNIT:DEFINE?
-> :FFT1:UNIT:DEFINE "EU"
Description Units are applied to scale values. They never
affect the computation result.
:FFT<x>:UNIT:MODE
Function
Sets or queries whether an FFT computation unit
will be attached automatically or manually.
Syntax
:FFT<x>:UNIT:MODE {AUTO|USERdefine}
:FFT<x>:UNIT:MODE?
<x> = 1 to 2
Example
:FFT1:UNIT:MODE AUTO
:FFT1:UNIT:MODE?
-> :FFT1:UNIT:MODE AUTO
:FFT<x>:VERTical?
Function
Queries all vertical axis settings for FFT analysis.
Syntax
:FFT<x>:VERTical?
<x> = 1 to 2
:FFT<x>:VERTical:LEVel
Function
Sets or queries the vertical axis display position
for FFT analysis.
Syntax
:FFT<x>:VERTical:LEVel {<NRf>}
:FFT<x>:VERTical:LEVel?
<x> = 1 to 2
<NRf> = −1.0000E+31 to 1.0000E+31
Example
:FFT1:VERTICAL:LEVEL 1
:FFT1:VERTICAL:LEVEL?
-> :FFT1:VERTICAL:LEVEL 1.000E+00
:FFT<x>:VERTical:MODE
Function
Sets or queries the FFT analysis vertical axis
mode.
Syntax
:FFT<x>:VERTical:MODE {AUTO|MANual}
:FFT<x>:VERTical:MODE?
<x> = 1 to 2
Example
:FFT1:VERTICAL:MODE AUTO
:FFT1:VERTICAL:MODE?
-> :FFT1:VERTICAL:MODE AUTO
:FFT<x>:VERTical:SENSitivity
Function
Sets or queries the vertical sensitivity for FFT
analysis.
Syntax
:FFT<x>:VERTical:SENSitivity {<NRf>}
:FFT<x>:VERTical:SENSitivity?
<x> = 1 to 2
<NRf> = −1.0000E+31 to 1.0000E+31
Example
:FFT1:VERTICAL:SENSITIVITY 1
:FFT1:VERTICAL:SENSITIVITY?
-> :FFT1:VERTICAL:SENSITIVITY 1.000E
+00
:FFT<x>:VTDisplay
Function
Sets or queries the on/off status of the VT
waveform display for FFT analysis.
Syntax
:FFT<x>:VTDisplay {<Boolean>}
:FFT<x>:VTDisplay?
<x> = 1 to 2
Example
:FFT1:VTDISPLAY ON
:FFT1:VTDISPLAY?
-> :FFT1:VTDISPLAY 1
:FFT<x>:WINDow
Function
Sets or queries the window function for FFT
analysis.
Syntax
:FFT<x>:WINDow {FLATtop|HANNing|RECT
angle}
:FFT<x>:WINDow?
<x> = 1 to 2
Example
:FFT1:WINDOW FLATTOP
:FFT1:WINDOW?
-> :FFT1:WINDOW FLATTOP
5.12 FFT Group
