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The GPS 155’s direct-to function provides a quick method of setting a course to
a destination waypoint. Once a direct-to destination is activated, the GPS 155 will
establish a point to point route line along the great circle from your present position
to the destination, and provide steering guidance and navigation data to the waypoint
until it is cancelled. If you are navigating to a waypoint and get off course, the direct-
to function may also be used to re-center the d-bar to proceed to the same waypoint.
To select a direct-to destination:
1. Press the
D
key. The CDI page will appear with the destination field flashing.
2. Use
K
and
O
to enter the identifier of the desired waypoint.
3. Press
E
to confirm the identifier, and
E
to accept the waypoint confirmation page.
To recenter the d-bar to the same active to waypoint:
1. Press the
D
key, followed by
E
twice. NOTE: If you’re navigating an active
approach with the MAP as the active waypoint, the approach will be cancelled.
A direct-to may also be quickly activated from many pages that display a single
waypoint identifier (e.g. the nearest airport page) by simply pressing
D
and
E
.
For pages that display a list of waypoints (e.g. the user waypoint list page), you must
highlight the desired waypoint with the flashing cursor before pressing the
D
key.
Once a direct-to is activated, the GPS 155 will provide navigation guidance until the
direct-to is cancelled or the unit is turned off.
To cancel a direct-to destination:
1. Place the flashing cursor over the destination field on the CDI page.
2. Press
\
. The destination field will go blank.
3. Press
E
. The GPS 155 will resume navigating Route 0 (the active route) if available.
49
DIRECT-TO & ROUTE NAV
Performing a Direct-To
To select a direct-to destination, press the
D
key and
enter the waypoint identifier.
To quickly select a direct-to from any page that displays
a single waypoint identifier, press
D
, followed by
ENTER.
155man (GOOD) 7/24/98 1:56 PM Page 49