Tektronix SPECMON3 Manual page 103

General Signal Viewing
The Setup settings for Time Overview are shown in the following table.
Settings tab
Scale (see page 120)
Trace (see page 91)
Prefs (see page 120)
xxx
Trace Tab
The Trace Tab allows you to set the display characteristics of displayed traces.
Setting
Show
Detection
Function
(Number of Traces)
Freeze
Save Trace As
Show Recalled trace
xxx
Detection
Trace Detection occurs when the trace is being decimated by the measurement. For example, if the
maximum number of trace points is 100,000, and the selected analysis region is 200,000 samples, the
measurement must decimate the 200,000 resulting trace points by 2 to prevent exceeding the 100,000 trace
point limit. Since only one value can be selected for each trace point, an algorithm must be used to select
(detect) the appropriate value to use.
The IQ samples in a data acquisition can be detected in a variety of ways. The number of IQ samples
available to each trace point varies with both analysis length and trace length. For example, with Spectrum
Length set to 'Auto' in the Analysis menu, the instrument analyzes just enough samples to produce one
IQ sample pair per trace point. In this case, the detection method chosen has very little effect, as the
SPECMON3 & SPECMON6 Printable Help
Description
Adjusts the vertical and horizontal scale and offset of the display.
Allows you to select the types of trace to display and its function.
Specifies whether or not certain display elements are shown.
Description
Shows / hides the selected trace.
Sets the Detection method used for the trace. Not available for saved traces. Available
detection methods are +Peak, -Peak, +/-Peak, Avg (VRMS), and Sample. Not all
detection methods are available in all displays.
Selects the trace processing method. Available settings are: Normal, Average, Max
Hold, and Min Hold.
Sets the number of traces averaged to generate the displayed trace. (Present only
when Function is set to Average.)
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.
Trace Tab
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