Analyze Wavefor
morTraceData
Description Window
Hanning
This is a very good window for measuring amplitude accuracy but less so for resolving
frequencies.
Use Hanning for measuring sine, periodic, and narrow band random noise. This window
works on transients or bursts where the signal levels before and after the event are
significantl
y different.
Blackman-Harris:
This is the be
st window for measuring the amplitude of frequencies but worst at resolving
frequencies.
Use Blackman-Harris for measuring predomin antly single frequency waveforms to look for
higher orde
r harmonics.
Using Advanced Math
The advanced math feature lets you create a custom math wavefo rm expression that can incorporate active and reference
waveforms, measurements, and/or numeric constants. To use this feature:
1. Push Math.
2. Push Advanced Math.
Dual Wfm
Math
FFT
Advanc
ed
Math
Spectrum
Math
(M) Label
3. Use the side-bezel menu buttons to create
custom expressions.
140 MDO4000 Series Oscilloscopes User Manual
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