Micsig STO1004 oscilloscope

Micsig STO1004 manual - Page 195

For STO1004.

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182
Rectangular window
This is the best window type for resolution frequencies that are very close to the same value, but this type is
the least effective at accurately measuring the amplitude of these frequencies. It is the best type of
measuring the spectrum of non-repetitive signals and measuring the frequency component close to DC.
Use the “Rectangularwindow to measure transients or bursts of signal levels before or after almost the
same event. Moreover, this window can be used to measure equal-amplitude sine waves with very close
frequencies and wideband random noises with relatively slow spectral variations.
Hamming window
This is the best window type for resolution frequencies that are very close to the same value, and the
amplitude accuracy is slightly better than the “Rectangularwindow. The Hamming type has a slightly
higher frequency resolution than the Hanning type.
Use Hamming to measure sinusoidal, periodic, and narrowband random noises. This window is used for
measuring transients or bursts of signal levels before or after events with significant differences.
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