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The TR122 starts in the oscilloscope mode and returns to default settings for all controls.

This will also be the case any time a new card, or the same card, is found using the Select menu

item. This gives the user a practical starting point from which to configure the measurement

environment. With the factory default display configuration, a real time display of data from

both channels will immediately appear in the oscilloscope window and a vertical white line will

indicate the time location of the trigger event for each record.

2.1 Customizing The Display

Data from the TR122 are displayed in an oscilloscope display format. The colors and

amounts of information displayed can be adjusted with a high degree of freedom. It is useful

to review the configuration at this point to become familiar with what is being displayed.

To configure the display, double click the left mouse button on the oscilloscope screen. The

dialog window in Figure 2.2 will appear. Changing any item in the dialog will immediately

affect the display.

Figure 2.2 Display Configuration Dialog

The Display Items list represents all of the information which can be displayed on the

oscilloscope screen. The check boxes indicate which items are being displayed and the color

bars are the colors in which they are being displayed. Some items can be removed from the

display. For example, to view only one channel simply uncheck the other channel by clicking on

the check box. To change the color, click on the color bar for an item to display a standard color

selection dialog. Clearly, if the background and the gradicule are the same color, the gradicule

will effectively disappear. The same would be true for any other item.

The options list allows for selection of optional display features. The Show Tick Marks

control toggles the display of the tick marks on the center gradicule lines. Draw Lines Betweens

Samples places a best fit line between each sample on the screen making the display bright and

easy to read. In some cases it may be advantageous to see the discrete sample points by

unchecking this option.

Use Save As Defaults to cause these settings to be loaded each time the software is

started. These settings are saved in a file called TR122disp.cfg in the same directory as the

software executable. This file is not human readable. To restore the factory defaults, this file

should be deleted. The Restore Defaults button will cause the contents of this file to be loaded or

the factory defaults will be loaded if this file is not present. The Ok button just closes the dialog.

DDC TR122 User Manual

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