Keysight N9923A, Руководство пользователя, Страница: 150 / 276

150 Keysight N9923-90001 User’s Guide
Pulse Measurements Mode – Option 330
Pulse Measurement Settings
—
Zoom Time/div
While monitoring the blue vertical posts on the primary
trace, enter a value for the zoom window span using the numeric keypad,
the
arrows, or the rotary knob.
—
Trace 1
Press to select
Tr 1
. This can also be done by using the
arrows. Select a trace before making trace settings, such as Scale.
—
Zoom Trace
Press to select the zoom trace.
Scale
For Meter-style measurements, learn how to set Scale, Relative and Offset
Power, display Units, and Resolution beginning in
“Scale” on page 150
.
How to set Scale for Trace Graph measurements
— Select a trace to scale using the arrows.
— Press
Scale / Amptd
— Then choose from the following methods:
—
Autoscale
Automatically adjusts the Y-axis to comfortably fit the Min and
Max amplitude of the trace on the screen.
— Set Scale, Reference Level, and Reference Position:
—
Scale
Manually enter a
scale per division
to view specific areas of
the trace.
— 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.
—
Ref Pos
Manually set the position of the reference line. Values must
be between 0 (TOP line) and 10 (BOTTOM line).
—
Offset ON
Enable Offset. When only trace 1 is visible,
Offset ON
appears to the left of the trace.
—
Offset Val
Enter a value by which all amplitude values will be offset.
This can have the effect of virtually removing a component from the
measurement path. A positive value compensates for a component
with loss. A negative value compensates for a component with gain.
Offset values are limited to +/- 100 dB.
Averaging
Averaging helps to reduce the effects of random noise on a measurement. The
more measurements that are averaged, the greater the amount of noise
reduction. Averaging is allowed for all pulse measurements.