GW Instek GDS-3000 Series Programming Manual - Manual (Page 45)

COMMAND DETAILS
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Example :MATH:FFT:SOURce CH1
Sets the FFT math source as channel 1.
:MATH:FFT:SOURce?
CH1
Return the FFT math source as channel 1.
:MATH:FFT:MAG
Set
Query
Description Sets FFT vertical units as linear or decibels.
Syntax :MATH:FFT:MAG {LINEAR|DB|?}
Parameter LINEAR Linear units (Vrms)
DB Logarithmic units (dB)
Return parameter Returns the FFT vertical units.
Example :MATH:FFT:MAG DB
Sets FFT vertical units are dB.
:MATH:FFT:WINDow
Set
Query
Description Sets the windowing filter used for the FFT
function.
Syntax :MATH:FFT:WINDow
{RECTangular|HAMming|HANning|BLAckman|?}
Parameter RECTangular Rectangular window
HAMming Hamming window
HANning Hanning window
BLAckman Blackman window
Return parameter Returns the FFT window.
Example :MATH:FFT:WINDow HAMming
Sets the FFT window filter to hamming.