Math Waveforms 4
Agilent InfiniiVision 3000 X-Series Oscilloscopes User's Guide 93
High Pass and Low Pass Filter
The high- pass or low- pass filter functions (available with the
DSOX3ADVMATH advanced math measurements license) apply the filter to
the selected source waveform and display the resut in the math waveform.
The high- pass filter is a single- pole high- pass filter.
The low- pass filter is a 4th order Bessel-Thompson filter.
Use the Bandwidth softkey to select the filter's -3 dB cutoff frequency.
The ratio of the input signal's Nyquist frequency and the selected -3 dB cutoff frequency
affects how many points are available in the output, and under some circumstances, there
are no points in the output waveform.
Figure 15 Example of Low Pass Filter
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