Rigol MSO4000 Series User Manual page 173

Chapter 6 Operations and Measurements
6. Specify the display mode
7. Specify the vertical scale unit
MSO4000/DS4000 User's Guide
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Table 6-1 Window Functions
Window Characteristics
The best frequency
resolution.
The poorest amplitude
Rectangle resolution.
Similar to the situation
when no window is
applied.
Better frequency
Hanning resolution.
Poor amplitude
resolution.
A little bit better
Hamming frequency resolution
than Hanning
The best amplitude
resolution.
Blackman
The poorest frequency
resolution.
Press Display to select "Split" (default) or "Full Screen" display mode.
Split: the source channel waveform and the FFT operation waveform are

displayed separately. The time domain and frequency domain signals are
displayed clearly.
Full Screen: the source channel waveform and the FFT operation results are

displayed in the same window (full screen) to view the frequency spectrum
more clearly and to perform more precise measurement.
Note: In FFT mode and when MATH is the active channel, you can also press
HORIZONTAL SCALE to quickly switch between "Split" and "Full Screen".
Press Scale to select "dB" (default) or "Vrms".
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Waveforms Suitable for
Measurement
Transient or short pulse, the signal
levels before and after the
multiplication are basically the same.
Sine waveforms with the same
amplitudes and rather similar
frequencies.
Wide band random noise with relatively
slowly changing waveform spectrum.
Sine, periodic and narrow band random
noise.
Transient or short pulse, the signal
levels before and after the
multiplication are rather different.
Single frequency signal, search for
higher order harmonics.
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