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Selecting map datum, Selecting elevation mode, Default setting: wgs84 – Magellan GPS 320 User Manual

Page 51: Default setting: 3d

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Magellan GPS 315/GPS 320

43

Selecting Map Datum

You can change the datum the receiver uses to compute
position coordinates. You will want your receiver’s datum to
match the datum on the map or chart you are using. Use
the map “legend” to determine the datum required for the
map or chart. If you are not using a map or chart or are
unsure which datum to use, select WGS84.

WPT NAMES

OFF

ON

WPT NAMES

OFF

ON

WPT NAMES

OFF

ON

MAP DATUM

PRIMARY

SECONDARY

MENU

Select

SETUP

ENTER

Select

MAP DATUM

ENTER

Select primary
or secondary

ENTER

FIG

.

D

Select
datum

ENTER

Default setting: WGS84

Selecting Elevation Mode

You have the option of changing your elevation mode to 2D
(2-Dimensional) or 3D (3-Dimensional). You may find 2D
useful if you know the elevation of your position and the
elevation will not change. Your receiver will compute
elevation in 3D mode but will not in 2D mode.

MENU

Select

SETUP

ENTER

Select

ELEV MODE

ENTER

Select
3D or 2D

ENTER

FIG

.

E

WPT NAMES

OFF

ON

WPT NAMES

OFF

ON

WPT NAMES

OFF

ON

ELEV MODE

3D

2D

If you select 3D, the receiver will return to SETUP. If 2D is
selected, the receiver will ask for elevation.

WPT NAMES

OFF

ON

WPT NAMES

OFF

ON

WPT NAMES

OFF

ON

ELEVATION

0

000FT

Input
elevation

ENTER

FIG

.

F

Default setting: 3D

Figure D. Be sure
the map datum
matches the datum
required for the
maps or charts you
are using.

Figure F. If you
are at sea level, you
can use 2D
because your
elevation is zero.

Figure E. You can
choose from 2D
or 3D.