Basic Operation Applying a window to the YT waveform changes the waveform so that the start and stop values are close to each other, which reduces the discontinuities. The Math FFT function has three FFT Window options. There is a trade-off between frequency resolution and amplitude accuracy for each type of window. You shall determine which one to choose according to the object you want to measure and the source signal characteristics.
DSO1000B(V) Series HandHeld Oscilloscope User Manual 23 Window Measurement Characteristics Hanning Periodic Waveform Better frequency, poorer amplitude accuracy than Flattop Flattop Periodic Waveform Better amplitude, poorer frequency accuracy than Hanning Rectangular Pulse or Transient Waveform Special-purpose window applicable to discontinuous waveforms. This is actually the