Garmin eTrex Camo Owner's Manual - Page 40

To change the North Reference, Angle, To select an Angle setting

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Reference Units of Measure 'MAGNETIC' north is the default north reference setting. 'Angle' Allows you seset directional information in degrees or mils. 38 North Reference 'Reference' refers to the orientation of a map's grid. Map makers try to align the vertical lines on a map with 'True North'. True North is the direction from any location on the earth's surface to the "north pole". Maps are typically referenced to true north. Because a compass points to magnetic north, not true north, maps indicate the difference between true and magnetic north with something called 'declination'. Declination changes as you move around the earth. Magnetic North is the direction in which a compass needle points. The eTrex bearings will correspond to a compass if the eTrex is set to magnetic north. Due to errors introduced when map makers flatten the earth's sphere, not all of the grid lines drawn on the map point exactly to the north pole, so the north indicated by the grid lines is called 'Grid North'. But, the difference is usually small enough that 'Grid' north can be considered the same as True North for travelling on land. You can correct for the difference for True North manually. To change the North Reference: 1. Press the PAGE Button and switch to the 'MENU' Page. Use the UP and DOWN Button and highlight the 'SETUP' field. Press ENTER. The 'SETUP' Page appears. 2. Press the UP or DOWN Button to select 'UNITS'. Press ENTER. The 'UNITS' Page appears. 3. Press the UP or DOWN Button and select the 'NORTH REF' field. Press ENTER. 4. Press the UP or DOWN Button to select the desired reference. Press ENTER. Press PAGE to return to the page of your choice. Angle You can set the unit to display directional information in 'DEGREES' or 'MILS'. To select an Angle setting: 1. With 'Units' Page displayed, select the Angle Field and press ENTER. Then select from 'DEGREES' or 'MILS' and press ENTER again. When you select the 'DEFAULTS' field and press ENTER, the 'UNITS' page returns to the factory settings.

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38
North Reference
‘Reference’ refers to the orientation of a map’s grid.
Map makers try to align the vertical lines on a map with
‘True North’. True North is the direction from any location
on the earth’s surface to the “north pole”. Maps are typi-
cally referenced to true north. Because a compass points
to magnetic north, not true north, maps indicate the dif-
ference between true and magnetic north with something
called ‘declination’. Declination changes as you move
around the earth. Magnetic North is the direction in which
a compass needle points. The eTrex bearings will cor-
respond to a compass if the eTrex is set to magnetic north.
Due to errors introduced when map makers flatten the
earth’s sphere, not all of the grid lines drawn on the map
point exactly to the north pole, so the north indicated by
the grid lines is called ‘Grid North’. But, the difference is
usually small enough that ‘Grid’ north can be considered
the same as True North for travelling on land. You can cor-
rect for the difference for True North manually.
To change the North Reference:
1.
Press the
PAGE
Button and switch to the ‘MENU’
Page. Use the
UP
and
DOWN
Button and highlight
the ‘SETUP’ field. Press
ENTER
. The ‘SETUP’ Page
appears.
2.
Press the
UP
or
DOWN
Button to select ‘UNITS’.
Press
ENTER
. The ‘UNITS’ Page appears.
3.
Press the
UP
or
DOWN
Button and select the
‘NORTH REF’ field. Press
ENTER
.
4.
Press the
UP
or
DOWN
Button to select the desired
reference. Press
ENTER
. Press
PAGE
to return to the
page of your choice.
Angle
You can set the unit to display directional information
in ‘DEGREES’ or ‘MILS’.
To select an Angle setting:
1.
With ‘Units’ Page displayed, select the Angle Field
and press
ENTER
. Then select from ‘DEGREES’ or
‘MILS’ and press
ENTER
again.
When you select the ‘DEFAULTS’ field and press
ENTER
, the ‘UNITS’ page returns to the factory settings.
‘MAGNETIC’ north is
the default north
reference setting.
Reference
Units of
Measure
‘Angle’ Allows you seset
directional information
in degrees or mils.