User Manual

Ɣ Turn the vertical “POSITION” knob to move the YT waveform to the center

vertically (zero divisions).

Ɣ Turn the horizontal “POSITION” knob to position the part of the YT waveform

that you want to analyze in the center eight divisions of the screen.

The oscilloscope calculates the FFT spectrum using the center 1024 points of the

time-domain waveform.

Ɣ Turn the “Volts/div” knob to ensure that the entire waveform remains on the

screen.

Ɣ Turn the “S/div” knob to provide the resolution you want in the FFT spectrum.

Ɣ If possible, set the oscilloscope to display many signal cycles.

To display FFT correctly, follow these steps:

1. Push the “MATH” button.

2. Set the “Operation” option to FFT.

3. Press the “Source” button to select “CH1”or “CH2”according to input signal

channel.

4. According to Nyquist law, turn the “S/div” knob to adjust the sampling

rate(This parameter is displayed behind the time base parameter) is at least

double than input signal frequency.

2. Displaying the FFT Spectrum

Press the MATH button to display the Math Menu. Use the options to select the

Source channel, Window algorithm, and FFT Zoom factor. You can display only one

FFT spectrum at a time. You can select “Full screen” or “Split” in “Display” option

to display FFT waveform on full screen or display channel waveform and its FFT

waveform on half screen at a time.