Datasheet

8. Trace
Sweep signal is shown as trace on screen.
8.1. Select Trace
Analyzer can show 3 traces at most with different trace color (Trace 1-yellow, Trace 2- light blue,
Trace 3-red). Trace 1, 2, 3 can be set by users and trace 4 is formed by math operation on base of
other 3 traces. Select trace and set related parameters of them. The default is Trace 1 and trace
type is Clear Write.
Note:
The current trace shown on the screen could be saved in analyzer or external memory and recall
when needed. User can press “Save” key to store the data, detail method is descriped in “Save”.
8.2. Trace Type
Set the type of the current trace or disable it. The system calculates the sample data with a specific
operation according to the slected trace type and finally displays the result. Trace type includes Clear
Write, Max Hold, Min Hold, Video Avg, Power Avg and Freeze. Each icon of selected type will be
shown at the left of screen. Take Trace 1 for example as below:
Figure 2-7
1. Clear
Clear all the data saved for previous trace and continuously displays the signals that are the data of
points during the sweep.
2. Max Hold
Maintains the maximum for each point of the trace, and updates each trace point if a new maximum
is generated in successive sweeps.
3. Min Hold
Maintains the minimum for each point of the trace, and updates each trace point if a new minimum is
generated in successive sweeps.
4. Video Avg
Display the trace after a logarithmic mean is calculated for each point of the trace in successive
sweeps. Traces in this type are smoother.
5. Power Avg
Display the trace after an average for each point of the trace in successive sweeps. Traces in this
type are smoother.
6. View
Hold and display the amplitude data of selected trace. Register stop updating trace data in order to
view and read the data. This type is generally used by traces from the storage devices or remote
interface download to system, the default type is View.
7. Blank
Disable the trace display and all measurement based on trace.
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