Keysight Technologies N9321C, User Manual

Page: 56 / 220

Functions and Measurements
Measuring a Low-Level Signal
48
be included in the process. The averaging function uses the most
recent trace sweep values so that the display shows any signal
changes.
Selecting averaging, when the analyzer is auto-coupled, changes
the detection mode to
Sample
, smoothing the displayed noise level.
1 Refer to the procedure "Reducing Input Attenuation" on page 44
of this chapter and follow steps 1, 2 and 3.
2 To turn averaging on, toggle the softkey menu labeled
Average
:
Press
BW > Average (On)
3 Set the number of averages to 20, using the number keypad, up
and down arrows, or the knob:
Press
20
,
Enter
The averaging process smooths the viewed trace, low level signals
become more visible (see Figure 3-13 ). Changes to the average
number will restart the averaging process.
Figure 3-13Trace Averaging
NOTE
This is a trace processing function and is not the same as using the
average detector (as described on
page 47
).