High Pass And Low Pass Filter - Agilent Technologies 4000 X-Series User Manual

4
Math Waveforms

High Pass and Low Pass Filter

The high- pass or low- pass filter functions apply the filter to the selected
source waveform and display the result 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
N O T E
affects how many points are available in the output, and under some circumstances, there
are no points in the output waveform.
Figure 16 Example of Low Pass Filter
Agilent InfiniiVision 4000 X-Series Oscilloscopes User's Guide 111