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Averaging (CAT, NA, Power Meter, Channel Scanner, and Pulse
Measurement Modes Only)
Trace Averaging helps to smooth a trace to reduce the effects of random noise on a measurement.
The FieldFox computes each data point based on the average of the same data point over several
consecutive sweeps.
Average Count determines the number of sweeps to average; the higher the average count, the
greater the amount of noise reduction.
An average counter is shown in the left edge of the screen as Avg N. This shows the number of
previous sweeps that have been averaged together to form the current trace. When the counter
reaches the specified count, then a 'running average' of the last N sweeps is displayed. Average
Count = 1 means there is NO averaging.
This setting can be changed at any time without affecting calibration accuracy.
Averaging is often used to increase the dynamic range of a measurement.
To achieve the highest dynamic range, select NA mode and reduce the IF
Bandwidth setting. Learn more about dynamic range in
Range" on page 112
How to Enable/Disable Averaging
1. Press BW 2.
2. Then choose from:
— Channel Scanner:
— Power Meter, Pulse Measurements:
enable averaging (Default = Auto, Auto == FieldFox sets the average count based on
current mode settings).
— CAT, NA:
Average 1
3. Press Enter.
4. Refer to
"How to set Trace Averaging" on page
How to set Trace Averaging
1. Press BW 2.
2. Then choose from:
— Channel Scanner:
current count, using
— Power Meter, Pulse Measurements:
enable averaging (Default = Auto, Auto == FieldFox sets the average count based on
current mode settings).
764
Data Analysis FeaturesDELETE_IF
All about Scale Settings
.
Average OFF ON
change to ON to enable averaging (Default = OFF).
Average Auto Man OFF
change to a number >1 to enable/set averaging (Default = 1 (OFF)).
Average OFF ON
change to ON to enable averaging and then set the
Average Count
softkey.
Average Auto Man OFF
change to Auto or Man to
763.
change to Auto or Man to
Keysight N9915-90020 User's Guide
"Increase Dynamic
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