Garmin GPS Receiver nüvi User Manual

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To ‘hold’ on the active-to waypoint:
1. Press
D
. The direct-to confirmation page will appear.
2. Rotate
O
to highlight the waypoint sequencing field, and rotate
K
to select ‘hold’.
3. Press
E
. The cursor will advance to the course select field where you may manually
enter the desired course to the ‘hold’ waypoint. The default course is the GPS course cal-
culated from your present position.
4. Press
E
to accept the course select field.
5. Press
E
to confirm the ‘ok?’ prompt.
During route operations, the CDI page is used to provide turn anticipation, next
desired track and waypoint arrival information to the pilot. The GNC 250’s turn
anticipation feature will smooth out the transition between adjacent route legs by
providing CDI guidance along a curved path segment. This leg transition is based on
the aircraft’s actual ground speed and the difference between the course angle of the
two legs. The GNC 250 will automatically sequence to the next leg when you are
abeam the ‘active to’ waypoint on the curved transition segment, and the to/from
indicator on the CDI will flip momentarily. During the transition, the CDI display will
be referenced to the dotted line illustrated at the left of this page. As you approach a
route waypoint, the graphical CDI will be replaced by a flashing ‘Next dtk xxxº’
prompt, indicating the desired track of the next route leg.
Turn anticipation will not be provided if you have set the waypoint sequencing
field to ‘hold’ or your current ground speed and the course angle between the two
legs would require a bank angle greater than 25º. If the leg transition is too short for
a smooth transition, a ‘Leg not smoothed’ message will appear, and the pilot should
expect a rapid change in the CDI deflection.
70
APPENDIX B
User Data Transfer
If the turn angle and your present speed will
require a bank angle that exceeds 25º, you’ll be
notified with a ‘Steep turn ahead’ message
approximately 90 seconds before arrival at the
active to waypoint.
As you approach a route waypoint, the graphical
CDI will be replaced by a flashing ‘next dtk xxxº’
prompt indicated the desired track of the next leg.
SECTION
5
ROUTES
Waypoint
Sequencing
250 real 7/14/98 9:33 AM Page 70

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