YOKOGAWA DL350 User Manual

4-103
IM DL350-17EN
Commands
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App
Index
4.12 FFT Group
The commands in this group deal with FFT analysis. You can make the same settings and queries that you can by
using Analysis > FFT in the top menu.
:FFT:POINt
Function Sets or queries the number of analysis source
points of the FFT windows.
Syntax
:FFT:POINt {<NRf>}
:FFT:POINt?
<NRf> = 1000, 2000, 5000, 10000, 20000, 50000,
100000
Example
:FFT:POINT 1000
:FFT:POINT? -> :FFT:POINT 1000
Description The setting is the same for FFT1 Window and
FFT2 Window.
:FFT:STARt
Function Sets or queries the analysis-source start point of
the FFT windows.
Syntax
:FFT:STARt {<NRf>}
:FFT:STARt?
<NRf> = –5 to 5
Example
 :FFT:START−5
:FFT:START?
->:FFT:START−5.000000000000
Description The setting is the same for FFT1 Window and
FFT2 Window.
:FFT:WAVeform<x>?
Function Queries all FFT window settings.
Syntax
:FFT:WAVeform<x>?
<x> = 1, 2
:FFT:WAVeform<x>:HAXis
Function Sets or queries an FFT window
’
s horizontal-axis
display method.
Syntax
:FFT:WAVeform<x>:HAXis {LINear|LOG}
:FFT:WAVeform<x>:HAXis?
<x> = 1, 2
Example
:FFT:WAVEFORM1:HAXIS LOG
:FFT:WAVEFORM1:HAXIS?
-> :FFT:WAVEFORM1:HAXIS LOG
:FFT:WAVeform<x>:HORizontal?
Function Queries all horizontal axis settings of FFT
analysis.
Syntax
FFT:WAVeform<x>:HORizontal?
<x> = 1, 2
:FFT:WAVeform<x>:HORizontal:CSPan?
Function Queries all settings related to the center point
and span of the horizontal axis in FFT analysis.
Syntax
:FFT:WAVeform<x>:HORizontal:CSPan?
<x> = 1, 2
:FFT?
Function Queries all FFT settings.
Syntax
:FFT?
:FFT:AVERage?
Function Queries all FFT averaging settings.
Syntax
:FFT:AVERage?
:FFT:AVERage:COUNt
Function Sets or queries the average count of linear
averaging.
Syntax
:FFT:AVERage:COUNt {<NRf>}
:FFT:AVERage:COUNt?
<NRf> = 2 to 128 (in 2
n
steps)
Example
:FFT:AVERAGE:COUNT 32
:FFT:AVERAGE:COUNT?
-> :FFT:AVERAGE:COUNT 32
:FFT:AVERage:EWEight
Function Sets or queries the attenuation constant of
exponential averaging.
Syntax
:FFT:AVERage:EWEight {<NRf>}
:FFT:AVERage:EWEight?
<NRf> = 2 to 256 (in 2
n
steps)
Example
:FFT:AVERAGE:EWEIGHT 16
:FFT:AVERAGE:EWEIGHT?
-> :FFT:AVERAGE:EWEIGHT 16
:FFT:AVERage:MODE
Function Sets or queries the FFT averaging mode.
Syntax
:FFT:AVERage:MODE {EXPonent|LINear|
OFF|PEAK}
:FFT:AVERage:MODE?
Example
:FFT:AVERAGE:MODE PEAK
:FFT:AVERAGE:MODE?
-> :FFT:AVERAGE:MODE PEAK
Description You can only specify OFF in recorder mode.
:FFT:AVERage:TYPE
Function Sets or queries the averaging domain.
Syntax
:FFT:AVERage:TYPE {FREQuency|TIME}
:FFT:AVERage:TYPE?
Example
:FFT:AVERAGE:TYPE FREQUENCY
:FFT:AVERAGE:TYPE?
-> :FFT:AVERAGE:TYPE FREQUENCY

YOKOGAWA DL350 Specifications

General

Brand	YOKOGAWA
Model	DL350
Category	Recording Equipment
Language	English