The Fast Fourier Transform (FFT) converts time domain waveforms, acquired in an oscilloscope, into frequency domain spectra. This allows the oscilloscope to provide the same kind of information normally supplied by an RF spectrum analyzer. LeCroy Application Brief No. LAB WM714 Setting Up An FFT In WaveMaster A Logical Approach To Setting Up The FFT Function signal being input to the FFT. If an acquisition channel (channel 1 - 4) The Fast Fourier Transform (FFT) converts time domain waveforms, ACQUIRED WAVEFORM acquired in an oscilloscope, into frequency domain spectra. This al- AMPLITUDE lows the oscilloscope to provide the TIME same kind of information normally supplied by an RF spectrum ana- lyzer. ……