Garmin gps40 用户手册

The course deviation indicator (CDI) scale defi-

nition field lets you select the +/- range of the CDI
bar scale. Three scales are available: +/- 0.25, 1.25
and 5.0 miles or kilometers, with 0.25 being the
default setting. To enter a CDI scale setting:

1. Highlight the ‘CDI scale’ field and press 

E

.

2. Use the 

U

and 

D

keys to select the desired

CDI scale setting.

3. Press the 

E

key to confirm the selection.

The GPS 40 lets you select statute (default),

nautical 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 the 

U

and 

D

keys to select the desired

unit of measure.

3. Press the 

E

key to confirm the selection.

The GPS 40’s heading information can be dis-

played referencing magnetic north (automatic or
user-defined), true north or calculated grid head-
ings. The default setting is automatic magnetic
north, which is suitable for most applications. To
select a reference:

1. Highlight the heading field and press 

E

.

2. Use the 

U

and 

D

keys to select the desired

heading preference.

3. Press the 

E

key to confirm the selection.

To enter a magnetic heading:

.

1. Select the ‘user mag’ heading 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.

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