User Manual

1. FFT Spectrum Analyzer

The FFT process mathematically converts a time-domain signal into its

frequency components. You can use the Math FFT mode to view the following types

of signals:

Ɣ Analyze the Humorous wave in the Power cable.

Ɣ Test the Humorous content and distortion in the system

Ɣ Show the Noise in the DC Power supply

Ɣ Test the filter and pulse response in the system

Ɣ Analyze vibration

Table 2-8 FFT function menu 1:

FFT

Option

Setting Introduction

Source CH1

CH2

Select this channel as the FFT source.

Window Hanning

Hamming

Rectangular

Blackman

Select FFT window types.

FFT

ZOOM

10X

Changes the horizontal magnification of the

FFT display.

Next Page Page 1/2 Enter the second page of FFT menu.

Table 2-9 FFT function menu 2:

FFT

Option

Setting Introduction

Vrms Set Vrms to be the Vertical Scale unit.Scale

dBVrms Set dBVrms to be the vertical Scale unit.

Display

Split

Full screen

Display FFT waveform on half screen.

Display FFT waveform on full screen.

Page 2/2 Return the first page of FFT menu.

To use the Math FFT mode, you need to perform the following tasks:

1. Set up the source (time-domain) waveform.

Ɣ Press the AUTO button to display a YT waveform.