Keysight N9938-90006 User’s Guide 157
SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers)
SA Mode Settings
— Press
Freq/Dist
then
More
.
— Then
Reverse Swap
Scale and Units
Adjust the Y-axis scale to see the relevant portions of the data trace.
The Y-axis is divided into 10 graticules. A acquisition is shown on the screen as
a solid horizontal bar that can be placed at any graticule.
When RF Attenuation set to
Auto
, the RF Attenuation is coupled to acquisition.
How to set Scale
Press
Scale / Amptd
. Then choose from the following:
—
Autoscale
Automatically adjusts the Y-axis to comfortably fit the Minimum
and Maximum amplitude of the trace on the screen.
—
Scale
Manually adjust the scale per division to view specific areas of the
current trace. Enter a value using the numeric keypad, the
arrows, or
the rotary knob. Then press
Enter
.
—
Ref Level
Manually set the value of the reference line. Enter a negative
value by pressing
Run/Hold (+/-)
either before or after typing a value. This
can also change the RF Attenuation setting. See
—
Preamp
“Preamplifier Control (Opt 235)” on page 160
.
—
RF Atten
“Attenuation Control” on page 159
.
—
More
opens another set of scale softkeys.
Manually set Scale Type, acquisition, and Reference Position.
—
Scale Type [current setting]
—
Log
Logarithmic scale (default setting). The Y-axis reference line
represents the specified absolute acquisition in the current Unit
selection. Y-axis graticules show dB below or above the reference
line.
—
Lin
Linear scale. The Y-axis reference line represents the specified
absolute acquisition in the current Unit selection. Y-axis graticules
show percent of acquisition (%) below or above the reference line.
—
Unit
Refer to
“How to Set Y-axis Units” on page 158
—
Corrections
Summary of Contents for N9913B
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