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Garmin GPS 120 User Manual

Page 24

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3D Navigation

indicates that at least bur satel­

lites with good geometry have been locked onto

and your position is now being calculated in lat­

itude, longitude and altitude, ‘3D Dili’will appear

when you are receiving DGPS corrections in 3D
mode.

Searching the Shy

indicates that the GPS 120

is collecting new almanac data or AutoLocate™

mode has been selected {see page 38). This

process can take 7.5 to 15 minutes.

Poor GPS Coverage

indicates that the receiver

is no longer tracking enough satellites to provide

a 2D or 3D position fix.

Simulator

indicates that the receiver is in

simulator mode.

Not Usable

indicates that the receiver is

unusable, possibly due to incorrect initialization

or abnormal satellite conditions. Turn the unit

off and back on.

On the right side of the screen, just below the

horizontal accuracy field is the screen backlight

indicator. When backlighting is on, a bulb icon

will appear. To adjust the screen backlighting:

1. M om entarily press the key to toggle

through low , m edium , high and off.

2. To adjust the duration of screen backlighting,

refer to the operation setup section (page 39).

A

The GPS 120 uses the latesttechnology in Electro-

Luminescent (EU tiacklight to provide the most

eon-

sistent backlighting possible. The typical life of the

EL backlight at full brightness is 4000 to SOOO hours

of

continuous use.

Using the lowest backlight level

possible, or not using bacldight when possible wll

extend the life

of the

backlighting by many years

16