Keysight Technologies N9321C User Manual page 60

Functions and Measurements
Tracking Drifting Signals
52
As the signal varies, maximum hold maintains the maximum
responses of the input signal. Annotation on the left side of the
screen indicates the trace mode. For example, M1 S2 S3 S4,
indicates trace 1 is in maximum-hold mode, trace 2, trace 3, and
trace 4 are in store-blank mode.
7 Activate trace 2 and change the mode to continuous sweep:
Press Trace/Det > Select Trace > Trace 2
Press Clear Write
Trace 1 remains in maximum hold mode to show any drift in the
signal.
8 Slowly increase the frequency of the signal generator. Your
analyzer display should look similar to
Figure 3-15 Viewing a Drifting Signal With Max Hold and Clear Write
Figure 3-15
.