Use Mathematical Manipulation Function; Using Fft Function - PeakTech 1280 Bedienungsanleitung

14. Use Mathematical Manipulation Function

The Mathematical Manipulation function is used to show the results of the addition, multiplication,
division and subtraction operations between Channel1and Channel 2, and the FFT operation of
Channel 1 or Channel 2.
Math of dual waveform
1. Turn on CH1 and CH2
2. Click to show Function menu, choose "Math". Check "Math".
3. Choose the factors and operator. Select the voltage division of M. The software transforms the
waveforms data of the two factors into selected voltage division of M and calculate. The green
calculated waveform M is displayed in the screen.

15. 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 2048 data points of the time-domain signal into its
frequency components mathematically and the final frequency contains 1024 points ranging from 0 Hz
to Nyquist frequency.
Taking the FFT operation for example, the operation steps are as follows:
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