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ECDIS-E User Guide
5-28
65934012
When a position source is changed, the primary history track transitions to
the newly selected position source while maintaining a smooth continuous
line.
Position sources for position sensor tracks can be individually selected and
turned off.
History
The History area of the window enables the display of history tracks to be
switched between Live and Daily, summary track data can also be
displayed.
Live
Live displays the current history tracks based on the period of time entered
in the adjacent field. The history track period is variable from 6.0 minutes to
24.0 hours. For example, if the length is set to 1 hour then ownship's
position history for the past hour only will be displayed.
To change the maximum length click in the field and when the current value
changes to green move the trackball to increase or decrease the value,
click again to accept the selected time.
Daily
Daily displays the history tracks over the past 24 hours for the selected day
shown in the field below. The daily history track does not automatically
update but the selected day can be changed.
To change the daily tracks to a previous day:
1. Click the Back arrow to page through
previous days up to a maximum of 30 days
ago. To return to the current day click on
the Forward arrow.
2. Or, to change the day, month or year click
in the date field and highlight the area you want to change using
the Forward and Back arrows on the drop down keypad.
3. With the value highlighted use the Up/Down buttons to adjust the
date period forward or back.
4. When the required time value is shown, click
OK
to complete.
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