Instruction Manual

The GNC 300XL uses direct point-to-point navigation to guide you from takeoff
to touchdown in the IFR environment. Once a destination is selected, the unit will
provide speed, course and distance data based upon a direct course from your present
position to your destination. A destination can be selected from any page with the
D (direct-to) key.
To select a direct-to destination:
1. Press the
D key. The CDI page will appear with the destination field highlighted.
2. Rotate the
K knob to enter the first letter of the destination waypoint identifier. The des-
tination waypoint may be an airport, VOR, NDB, intersection or user waypoint, as long as
it is in the database or stored in memory as a user waypoint.
3. Rotate the
O knob to the right to move the cursor to the next character position.
4. Repeat steps 2 and 3 to spell out the rest of the waypoint identifier.
5. Press
E to confirm the identifier. The direct-to confirmation page will appear.
6. Press
E to confirm the destination.
Once the direct-to destination is confirmed, the CDI page will appear with the
destination indicated in the lower left hand corner of the screen. Your present speed
and track over the ground, and the distance and estimated time en route to your des-
tination are also displayed. The graphical CDI (course deviation indicator), located at
the top left of the screen, displays your position relative to the desired course and
provides turn anticipation and waypoint messages during route navigation.
5
When a destination is selected the direct-to
confirmation page appears to verify the destina-
tion you selected. The lat/long, facility name or
city may be displayed by highlighting the position
field (third display line) and rotating the K knob.
The CDI page without a direct-to destination or
active route appears blank, except for ground
speed (GS) and track (TRK) figures, if displayed.
TAKEOFF TOUR
Direct-To
Navigation
300xl manual 1/25/99 2:35 PM Page 5