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Using the keypad, Acquiring gps satellite signals – Garmin GPSMAP 545s User Manual

Page 11

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GPSMAP 400/500 Series Owner’s Manual

5

Getting Started

Using the Keypad

POWER/

BACKLIGHT

MENU

ROCKER

SELECT

HOME

RANGE (-/+)

MARK

POwER/baCKLigHT—Press and hold to turn the unit on or off.

Press and release to adjust the backlight and day and night modes.
RaNgE (-/+)—Press to adjust the range of the sonar. Press to zoom

in or out on a chart. Press to page up or down on lists.
ROCKER—Press to adjust the range of the sonar, to zoom in or out

on a chart, to page up or down on lists, to scroll the map, or to adjust

the backlight level.
MaRK—Press to mark a waypoint at your current location.
SELECT—Press to select highlighted items.
HOME—Press to return to the Home screen.
MENU—Press to access additional settings and configuration

options. Press to return to the previous screen when indicated.

Acquiring GPS Satellite Signals

When you turn on the unit, the GPS receiver must collect satellite

data and establish the current location. When the unit acquires

satellite signals, the signal strength bars at the top of the Home

screen are green

. When the unit loses satellite signals, the

green bars disappear

and the position icon displays a flashing

question mark.