RIGOL
2-50
DS4000E Programming Guide
Parameter
Name
Type
Range
Default
<vmode>
Discrete
{VRMS|DB}
DB
Remarks
VRMS: displays the vertical amplitude in linear mode.
DB: displays the vertical amplitude in log mode.
Return Format
The query returns VRMS or DB.
:CALCulate:FFT:WINDow
Syntax
:CALCulate:FFT:WINDow <window>
:CALCulate:FFT:WINDow?
Description
Sets or queries the window function of FFT operation.
Parameter
Name
Type
Range
Default
<window> Discrete
{RECTangle|HANNing|HAMMing|BLACkman}
RECTangle
Remarks
The window function can effectively reduce the spectrum leakage effect.
Different window functions are applicable to measurements of different waveforms. Please select the
proper window function according to the characteristics of the waveform to be measured.
Return Format
The query returns RECT, HANN, HAMM, or BLAC.
