Chapter 3 91
Making Measurements
FM Deviation Measurement
Filter Type
This parameter is used to determine the way that the high pass and low pass filters
are implemented. the option for this parameter are the following:
FIR (0dB) These filters have 0 dB of loss at the stop frequency. The
measurement speed with this type of filter is slow.
IIR (–3dB) These filters have 3 dB of loss at the stop frequency. The
measurement speed with this type of filter is faster than the FIR
filter.
Adjusting the View
Press Trace/View.
Numeric results is the default setting. Toggle the key to
Demod Waveform to view
the waveform.
Press
Span X scale and Amplitude Y scale to adjust the waveform display.
FM Deviation Measurement Example
Figure 3-10 FM Deviation Measurement Result (Default)
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