Magnetic Variation Arrival Alarm; To Set The Magnetic Variation; To Set The Arrival Alarm Distance - Garmin 250XL Pilot's Manual And Reference

The GNC 250XL has three magnetic variation options: true, auto, or user-defined.

To set the magnetic variation:

M
1. Press and hold , and use
C
2. Press twice and use
O
3. If user is selected, use
enter the value and 'E' or 'W'. Press
If 'auto' mag var is selected, all track, course and heading information will be corrected
to the magnetic variation computed by the GPS. The 'true' setting will reference all infor-
mation to true north, and the 'user' setting will correct information to an entered value.
The GNC 250XL' 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
waypoint 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 displayed. A minimum runway
length and surface type may be entered to prevent airports with small runways, or run-
ways that are not of appropriate surface, from being displayed. The default settings are '0
ft/mt' for runway length and 'any' for runway surface type.
O
to display the 'Mag Var/Arvl Alarm' page.
K
to select 'auto mag', 'true hdg' or 'user mag'.
to highlight the magnetic variation value, and use
C
to finish.
O
to display the 'Mag Var/Arvl Alarm' page.
O
to select the arrival distance field.
C
to finish.
K O
and to
Setting the arrival alarm to 10 nautical miles.
The runway length and surface type settings allow
pilots of large, high-performance aircraft to direct
the T key function to ignore those airports at
which if would be difficult, if not impossible, to
land their aircraft.
UNIT SETTINGS SECTION
6
Magnetic Variation
Arrival Alarm
79