RIGOL MSO/DS1000Z Series - Manual (Page 123)

Chapter 6 MATH and Measurement RIGOL
MSO1000Z/DS1000Z User’s Guide 6-9
optimal value according to the current configuration.
Tips
 You can adjust the center frequency and horizontal scale at the same time
using HORIZONTAL SCALE.
 Signals with DC components or deviation would cause error or deviation of the
FFT waveform components. To reduce the DC components, set the "Channel
Coupling" to "AC".
 To reduce the random noise and aliasing frequency components of repetitive
or single pulse, set the "Acquisition Mode" of the oscilloscope to "Average".