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Chapter 6 Operations and Measurements RIGOL
MSO5000 User Guide 6-9
Similar to the
situation when
no window is
applied.
frequencies.
Wide band random noise with
relatively slow change of waveform
spectrum.
Blackman-Harris
Best amplitude
resolution
Poorest
frequency
resolution
Single frequency signal, searching for
higher order harmonics.
Hanning
Better frequency
resolution and
poorer amplitude
resolution
compared with
Rectangular
Sine, periodic, and narrow band
random noise.
Hamming
A little bit better
frequency
resolution than
Hanning
Transient or short pulse, the signal
levels before and after the
multiplication are rather different.
Flattop
Measure the
signals
accurately
Measure the signal that has no
accurate reference and requires an
accurate measurement
Triangle
Better frequency
resolution
Measure the narrow band signal and
that has strong noise interference
âš« For FFT math operation setting label, refer to descriptions in "Math Operation
Label".
⚫ Press More → More → Color Grade to enable or disable the color grade
display of the FFT operation results. When enabled, different colors are
displayed on the screen to indicate the times of data acquisition or acquisition
probability.
⚫ Press More → More → Reset ColorGrade to clear the color grade display and
display the color grade again.
Tip
FFT shortcut operation: Enable the touch screen, and then tap the function
navigation icon
at the lower-left corner of the screen to open the function
navigation. Then, tap the "FFT" icon to open the FFT menu. This oscilloscope
supports 4 FFTs: FFT1, FFT2, FFT3, and FFT4. For details, refer to the
descriptions in this section.
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