Tektronix SPECMON3 Manual page 85

General Signal Viewing
Traces tab – DPXogram trace (Instruments with Option 200)
Traces tab settings for the bitmap trace (Instruments with Option 200)
Setting
Trace
Show
Detection (DPXogram trace
only)
Intensity (standard instrument
only)
Dot Persistence
Variable
Infinite
Freeze
Save Trace As
Show Recalled Trace
xxx
Dot Persistence
Dot Persistence is the characteristic of the DPX display that determines how long a pixel in the display
remains visible.
To set the Persistence:
1. Select Setup > Settings.
2. Select the Traces tab.
3. Select Dot Persistence.
SPECMON3 & SPECMON6 Printable Help
Description
Select Bitmap or DPXogram to set the parameters of the DPX Bitmap or DPXogram trace.
Specifies whether or not the selected trace is displayed.
Sets the Detection method (see page 114)
methods are +Peak, -Peak, and Avg (VRMS).
Use Intensity to control the visibility of events. An increased intensity level allows a
single, short event to be seen. This also makes such an event subject to the persistence
controls. This allows you to see the effect of the Persistence controls on infrequent
events. Range is 1-100%. Resolution: 1.
Allows a dot to remain visible if it is not updated with new data. Choices for this setting
are Variable and Infinite. (Not available for the DPXogram trace.)
The Variable dot persistence setting controls how long a point in the display is visible
before fading (not available for the DPXogram trace). This setting has no units
associated with it.
Range: 1–1000. Resolution 0.1.
Instruments with Option 200 Range: 50 ms –100 s.
The Infinite dot persistence setting prevents a point in the display from fading (not
available for the DPXogram trace).
Halts updates to the selected trace.
Saves the selected trace to a file for later recall and analysis.
Displays a saved trace instead of a live trace (not available for the DPXogram trace).
Traces Tab – Bitmap
used for the trace. Available detection
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