Instructions

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Return : The query returns the vertical scale of the operation
result in scientific notation
Example :MATH:OFFSet 2 /*set vertical offset to 2V */
:MATH:OFFSet? /* The query returns 2.000000e+00*/
MATH:FFT:SOURce
Syntax :MATH:FFT:SOURce <source>
:MATH:FFT:SOURce?
Description : Set or query the source of FFT operation/filter
Parameter :<source> ::= < CHANnel1|CHANnel2|CHANnel3|CHANnel4>
Return : The query returns CHANnel1， CHANnel2， CHANnel3， CHANnel4
Example :MATH:FFT:SOURce CHANnel1 /*Set the source of FFT
operation to CH1*/
:MATH:FFT:SOURce? /* The query returns CHANnel1*/
MATH:FFT:WINDow
Syntax :MATH:FFT:WINDow <window>
:MATH:FFT:WINDow?
Description : Set or query the window function of the FFT operation.
Parameter :<window> ::= < RECTangle| HANNing| HAMMing| BLACkman|
TRIangle| FLATtop>
Explanation : 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.
Return : The query returns
RECTangle,HANNing,HAMMing,BLACkman,TRIangle,FLATtop
Example :MATH:FFT:WINDow RECTangle /*set to RECTangle*/
:MATH:FFT:WINDow? /* The query returns
RECTangle*/
MATH:FFT:UNIT
Syntax :MATH:FFT:UNIT <unit>
:MATH:FFT:UNIT?