Datasheet

4.Advanced User Guidebook

Vertical

div

v or dB

Switch to select the vertical position or

voltage division of the F

FT waveform,

turn the M knob to adjust it

Taking the additive operation between Channel 1 and Channels 2 for example, the

operation steps are as follows:

1. Press the Math button to display the math menu in the bottom. The pink M

waveform appears on the screen.

2. Select Dual Wfm Math in the bottom menu.

3. In the right menu, select Factor1 as CH1.

4. Select Sign as + in the right menu.

5. In the right menu, select Factor2 as CH2.

6. Select Vertical in the right menu; select repeatedly to make the symbol in

front of div, turn the M knob to adjust the vertical position of Math waveform;

then select to make the symbol in front of the voltage below, turn the M knob

to adjust the voltage division of Math waveform.

Using FFT function

The FFT (fast Fourier transform) math function mathematically converts a time-domain

waveform into its frequency components. It is very useful for analyzing the input signal on

Oscilloscope. You can match these frequencies with known system frequencies, such as

system clocks, oscillators, or power supplies.

FFT function in this oscilloscope transforms 8192 data points of the time-domain signal

into its frequency components mathematically and the final frequency contains 4096

points ranging from 0Hz to Nyquist frequency.

Taking the FFT operation for example, the operation steps are as follows:

1. Press the Math button to display the math menu in the bottom. The blue M waveform

appears on the screen.

2. Select FFT in the bottom menu.

3. In the right menu, select Source as CH1.

4. Select Window in the right menu; select the proper window type in the left menu.

5. Select Format as Vrms or dB in the right menu.

6. Select Hori in the right menu; select repeatedly to make the symbol in front of Hz,

turn the M knob to adjust the horizontal position of FFT waveform; then select to

make the symbol in front of the Hz/div below, turn the M knob to adjust the time

base of FFT waveform.

7. Select Vertical in the right menu; do the same operations as above to set the vertical

position and voltage division.

To select the FFT window