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FFTMON (Fast Fourier Transform Monitor)

This component is to see the spectrum of the data coming from other components.


Double-click on it and click "Change Parameters" to determine the parameters of FFT. You can choose "FFT Points" out of 64, 128, 256, 512, 1024, 2048, 4096 or 8192. As to "Window Function", see this tutorial.


Left-click to select it and right-click to choose "Open a Monitor".


FFT is executed and the spectrum is drawn on the monitor window.


If you choose "Normal" for FFT parameters, you need to choose "Tools" -> "FFT Start" to start it. ("FFT Stop" to stop it)


"View" -> "Scale Change" on the menu to change the scale.



Sample Schematics

Filter square wave and make sine wave

Reduce ham noise on the conversation


Related Tutorials

How to see spectrums and filter signals

How to reduce ham noises

Execute FFT on FIR's Impulse Response

Execute FFT on IIR's Impulse Response

Variety of Window Function and their merits/demerits


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