Time Marker > Special Considerations

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Special Considerations

A time marker can be set with or without the cursor enabled. However, the following procedure assumes the cursor is enabled. To use the time marker function, position the cursor (by using the mouse in the bottom annotation line, or by using the left- and right-arrow keys) at a point on the waveform in window 1 where the time marker is to be placed. Set and display the time marker by selecting Options  > Enable Time Marker. Move the cursor away from the time marker (again, by using the mouse or the arrow keys). As the cursor is moved, the time difference between the cursor and time marker will be annotated in the bottom annotation margin in one of four selectable formats (refer to Select Marker Display for more details on time marker display formats). Selecting Options > Enable Time Marker a second time will remove the time marker.


Since cursors for all channels align perfectly in time, the time difference for events on channels other than that in window one may be measured even though the time marker itself is displayed only on window one's waveform. Using the Variable Waveform Assignments function, you can assign any waveform channel number to window one, allowing time measurements to be made on any channel.


Time differences are annotated as both positive and negative numbers. When the cursor is to the right of the time marker, the time difference will be displayed as a positive value. When the cursor is to the left of the time marker, the time difference will be displayed as a negative value.


When a time marker is placed directly over an event mark, the time marker has priority. The event mark disappears.