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SDS5000X Series Digital Oscilloscope User Manual
suitable to use Rectangle window with the best frequency resolution. For the
case where the accuracy of amplitude measurement is critical, it is
recommended to select Flattop window with the best amplitude resolution.
Window
Characteristics
Main lobe
width
Side lobe
suppression
Maximum
amplitude
error
Rectangle
The best
frequency
resolution
The worst
amplitude
resolution
It is equivalent to
the case of no
window
23Ï€/N
-13 dB
3.9 dB
Hanning
Better frequency
resolution
Poor amplitude
resolution
8Ï€/N
-32 dB
1.4 dB
Hamming
Better frequency
resolution
Poor amplitude
resolution
8Ï€/N
-43 dB
1.8 dB
Blackman
Poor frequency
resolution
Better amplitude
resolution
12Ï€/N
-58 dB
1.1 dB
Flattop
Poor frequency
resolution
The best
amplitude
resolution
23Ï€/N
-93 dB
< 0.1dB
Display Mode
ï‚Ÿ Split: Time domain waveform and frequency domain waveform are
displayed separately. The time domain waveform is on the upper half
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