Quick Reference
2
Keysight InfiniiVision 1000 X-Series Oscilloscopes User's Guide
71
Frequency Response Analysis
On G-suffix oscilloscope models (that have a a built-in waveform generator), the
Frequency Response Analysis (FRA) feature controls the built-in waveform
generator to sweep a sine wave across a range of frequencies while measuring the
input to and output from a device under test (DUT). At each frequency, gain (A)
and phase are measured and plotted on a frequency response Bode chart.
When the frequency response analysis completes, you can move a marker across
the chart to see the measured gain and phase values at each frequency point. You
can also adjust the chart's scale and offset settings for the gain and phase plots.
Table 22
Frequency Response Analysis Features
Feature
Front Panel Key/Softkey Location (see built-in help for more information)
Frequency Response
Analysis (FRA)
enable/disable
[Analyze] > Features
,
Entry knob to select
Frequency Response Analysis
, push Entry knob to
enable or disable
Channels probing DUT
input V and output V
[Analyze] > Setup > Input V
[Analyze] > Setup > Output V
Frequency sweep min
and max values
[Analyze] > Setup > Min/Max Freq
, Entry
knob
Waveform generator
amplitude and
expected output load
[Analyze] > Setup > Amplitude
, Entry
knob
[Analyze] > Setup > Output Load
(50
Ω
, High-Z)
Run the analysis
[Analyze] > Run Analysis
Adjust scale and offset
of Bode plots
[Analyze] > Chart > Gain/Phase Scale/Offset
, Entry
knob
Autoscale gain and
phase plots
[Analyze] > Chart > Autoscale
View measured gain
and phase values
[Analyze] > Move Marker
, Entry
knob
Save data to USB
storage device
[Save/Recall] > Save > Format, Frequency Response Analysis data (*.csv)