Chapter 2 Command System RIGOL
MSO1000Z/DS1000Z Programming Guide 2-95
:MATH:RESet
Sending this command, the instrument adjusts the vertical scale of the operation result to
the most proper value according to the current operator and the horizontal timebase of
the source.
:MATH:OPERator
:MATH:SCALe
:TIMebase[:MAIN]:SCALe
:MATH:FFT:SOURce
:MATH:FFT:SOURce <src>
:MATH:FFT:SOURce?
Set or query the source of FFT operation/filter.
{CHANnel1|CHANnel2|CHANnel3|CHANnel4}
The query returns CHAN1, CHAN2, CHAN3, or CHAN4.
:MATH:FFT:SOURce CHANnel3 /* Set the source of FFT operation to CH3*/
:MATH:FFT:SOURce? /* The query returns CHAN3*/
:MATH:FFT:WINDow
:MATH:FFT:WINDow <wnd>
:MATH:FFT:WINDow?
Set or query the window function of the FFT operation.
{RECTangle|BLACkman|HANNing|HAMMing|
FLATtop|TRIangle}
 Spectral leakage can be considerably decreased when a window function is used.
 Different window functions are applicable to measure different waveforms. You need
to select the window function according to waveform to be measured and its
characteristics.
The query returns RECT, BLAC, HANN, HAMM, FLAT, or TRI.
:MATH:FFT:WINDow BLACkman /*Set the window function of the FFT operation to
blackman*/
:MATH:FFT:WINDow? /* The query returns BLACK*/
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