Garmin GNC 300 Pilot's Manual page 107

If 'auto' mag var is selected, all track, course and heading information will be corrected
with the variation computed by the GPS. The 'true' setting will reference all information to
true north, and the 'user' setting will correct information to an entered value.
The GNC 300' s arrival alarm can be set to notify the pilot with a message when you
have reached a user defined distance to a final destination waypoint (the direct-to way-
point or the last waypoint in a route). Once you have reached the set distance (up to 99.9
units), an 'Arrival at _____' message will be displayed.
To set the arrival alarm distance:
M
1. Press and hold and use
C
2. Press twice and use
K O
3. Use and to enter the desired distance. Press
The nearest airport search settings allow you to define the runway length and
surface type used in determining the nine nearest airports that are displayed. A minimum
runway distance and surface may be entered to prevent airports with small runways, or
runways that are not of appropriate surface, from being displayed. The default settings are
'0 ft/mt' for runway length and 'any' for runway surface.
To set the minimum runway length and runway surface:
M
1. Press and hold and use
C
2. Press twice and use
aircraft can land (up to 9999 units). Press
K
3. Rotate to display the surface selection you desire. Choices include:
• any surface
• soft/hard surface
O
4. Use to select 'ok?' and press
O
to display the 'Mag Var/Arvl Alarm' page.
O
to select the arrival distance field.
C
to finish.
O
to display the nearest airport search page.
K O
and to enter the minimum runway length upon which your
E
to accept the distance.
• hard only surface
• water only surface
E C
to confirm and to complete.
APPENDIX D
UNIT SETTINGS
Messages &
Arrival Alarm
Abbreviations
Nearest Airport Search
Setting the arrival alarm.
Runway length and surface type settings.
SECTION
7
97