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Units of Measure
The GPS 45XL lets you select nautical (default), statute
or metric units of measure for all speed and distance fields.
To change the unit of measure:
1. Highlight the ‘units’ field and press the
E
key.
2. Use
U
and
D
to select the desired unit of measure.
3. Press the
E
key to confirm the selection.
Magnetic Heading Reference
The GPS 45XL’s heading information can be displayed
referencing magnetic north (auto or user-defined), true
north or calculated grid headings. The default setting is
automatic magnetic north, which is suitable for most appli-
cations.
To select a heading reference:
1. Highlight the ‘HEADING’ field and press
E
.
2. Select the desired heading preference.
3. Press the
E
key to confirm the selection.
To enter a user-defined magnetic heading:
. 1. Select the ‘USER MAG’ option and press
E
.
2. Use the
U
and
D
keys to enter the degrees
and direction of magnetic variation.
3. Press the
E
key to confirm the magnetic
variation value.
Map Setup and Orientation
The map setup page lets you select map orientation and
specify what items are displayed. The map may be oriented
to north up, the direction of current travel (track up) or the
direction of an active route leg (desired track up). The
default setting is track up.
To change the map orientation:
1. Highlight the ‘ORIENTATION’ field and press
E
.
2. Use the
U
and
D
keys to toggle through and select
the desired setting, and press
E
.
48
Reference
NAV & Map
Setup
Magnetic Heading
To enter a user- d e f i n e d
magnetic variation, select
the ‘User Mag’ option and
enter the desired direction
and value.
MapSetup Page
The map orientation can be
set to track up, north up, or
desired track up. The plot-
ted items options let you
define what appears on the
map display.
GPS 45XL Manual C 8/4/98 3:07 PM Page 48