All About Scale Settings; How To Use Scale Settings; Averaging (Cat, Na, Power Meter, Channel Scanner, And Pulse Measurement Modes Only) - Keysight B Series User Manual

All about Scale Settings

How to Use Scale Settings

Adjust the Y-axis scale to see the relevant portions of the data trace. The Y-axis is divided into 10
graticules.
This setting can be changed at any time without affecting calibration accuracy.
How to set Scale
— Press Scale / Amptd.
— Then choose from the following three methods:
1. Autoscale Automatically adjusts the Y-axis to comfortably fit the Minimum and Maximum
amplitude of the trace on the screen.
2. Set Scale, acquisition, and Reference Position:
— Scale
— Ref Level
by pressing Run/Hold (+/-) either before or after typing a value
— Ref Pos
between 0 (TOP line) and 10 (BOTTOM line)
3. Set Top and Bottom graticule values. The scale per division is calculated.
— Top
— Bottom
— Enter a negative value by pressing Run/Hold (+/-) either before or after typing
a value.
Scale annotation on the FieldFox screen
Reference Line = red arrow
Ref Level = -40 dB
Ref Position = 1
Scale = 2 dB per division
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.
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Data Analysis Features
All about Scale Settings
Manually enter a scale per division to view specific areas of the trace
Manually set the value of the reference line. Enter a negative value
Manually set the position of the reference line. Values must be
to set the value of the Top graticule.
to set the value of the Bottom graticule.
Keysight N9938-90003 User's Guide