User manual

RIGOL Chapter 2 Front Panel Operation
User’s Guide for DSA800 Series
2-6
Signal Track
Turn on or off signal track. This function is used to track and measure signal with
unstable frequency and less than 3 dB transient variation in amplitude by placing
Marker1 (see “Marker Measurements”) onto the signal under measurement to
track and measure the variation of the signal continuously.
The signal track process is as shown in the figure below:
Start
Execute a
sweep
Search peak
and mark
Exist active
marker?
N
Set marker
frequency to
center freq
Y
Execute the
next sweep
Search and mark the
frequency point (variation
< 3dB) near the marker
Figure 2-1 Process of Signal Track
Key Points:
 When Signal Track is On, the ST (Signal Track) icon is shown in the status
bar at the left of the screen.
 If an active marker currently exists, when Signal Track is enabled, the
instrument will search and mark the point (with no more than 3 dB variation in
amplitude) near the marker as well as set the frequency of this point as the