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Math:fft:source, Math:fft:mag, Math:fft:window – GW Instek GDS-2000A series Programming Manual User Manual

Page 58

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GDS-2000A Programming Manual

58

:MATH:FFT:SOURce

Description

Sets and queries the FFT math source.

Syntax

:MATH:FFT:SOURce { CH1 | CH2 | CH3 | CH4 | REF1 |
REF2 | REF3 | REF4 | FUNCtion | ? }

Related
commands

:MATH:ADVanced:EDIT:SOURce
:MATH:ADVanced:EDIT:OPERator

Parameter

CH1~4

Channel 1 to 4

REF1~4

Reference waveform 1 to 4

FUNCtion

F(X) waveform

Return parameter Returns the FFT source.

Example

:MATH:FFT:SOURce CH1
Sets the FFT math source as channel 1.

:MATH:FFT:MAG

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 to dB.

:MATH:FFT:WINDow

Description

Sets the windowing filter used for the FFT
function.

Syntax

:MATH:FFT:WINDow
{RECTangular|HAMming|HANning|BLAckman|?}

Set

Query

Set

Query

Set

Query