Tektronix NetTek YBT250, User Manual

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Displaying a Signal Spectrum
YBT250 Field Transmitter & Interference Tester User Manual
3- 5
Setting Trace Display Options
You can change how a trace is displayed to make it easier to analyze
a signal. Table 3--2 lists the available trace types.
Table 3- 2: Trace display options
Trace type Description
Normal Each point in the trace represents a single acquisition. Updates
display with each new acquisition.
Average Each point in the trace represents an average of a number of
acquisitions. The number of acquisitions averaged is set on the
Spectrum tab of the Settings page.
Min Hold Each point in the trace represents the minimum amplitude
measured at that frequency since the acquisition was started.
Acquisition can be restarted by tapping the restart button.
Updates displayed point only if new point < old point.
Max Hold Each point in the trace represents the maximum amplitude
measured at that frequency since the acquisition was started.
Acquisition can be restarted by tapping the restart button.
Updates displayed point only if new point > old point.
Min/Max Hold This is a combination of Min Hold and Max Hold. Each point in
the trace has both a minimum and maximum value that
correspond, respectively, to the minimum and maximum values
measured at that frequency since the acquisition was started.
Acquisition can be restarted by tapping the restart button.
Draws a vertical line between Max Hold and Min Hold points.
Setting the Trace Type
The default trace type is Normal. However, you can set the trace
type to any of the other four trace types.
To change the trace type, select the desired trace type from the
Trace drop-down list. See Figure 3--2.