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the unit of measure you choose using the
“DISPLAY UNITS” setting described
later in this section.
Press to highlight the Time Buffer
value. Press or to select
the value.
The Time Buffer contains the travel
time (based upon current track and
speed) from the airspace border where
you will be alerted.
Press to save the selected choices
ATC Ring When ATC Ring is set to ON, a ring
five nautical miles in radius is drawn
around any airport that has a control
tower frequency.
No alerts are provided for nearing the
ATC ring; it is only a visual marker on
the map screens for your convenience
User Wpts Press to highlight the desired
item. Press or to select the
desired choice.
Press to save the selected choices.