Table of Contents

Introduction ...........................................................................i

Caring for the GPSMAP 378/478 ...........................................iv
Warnings ..................................................................................v
Important Information ............................................................vi
Battery Warnings ....................................................................vi

Getting Started .....................................................................1

Unit Overview ..........................................................................1
Charging the GPSMAP 378/478 ..............................................2
Turning On the GPSMAP 378/478 ..........................................3
Getting Satellite Signals .........................................................4
Using the GPSMAP 378/478 Keypad......................................7
Using the GPSMAP 378/478....................................................8
Using Simulator Mode ..........................................................12

Marine Mode .......................................................................13

Marine Mode Pages ...............................................................13
Navigating to a Destination ..................................................14
Finding an Item ......................................................................17
Creating and Using Routes ..................................................20
Creating and Using Waypoints ............................................24
Managing Your Tracks ..........................................................34

Marine Mode Pages ...........................................................38

Map Page ................................................................................38
Compass Page .......................................................................45
Highway Page ........................................................................48
Active Route Page .................................................................50
Position Data Page ................................................................51
XM Audio Page ......................................................................52

Automotive Mode ..............................................................56

Automotive Mode Pages .......................................................56
Navigating in Automotive Mode ...........................................57
Editing Your Route ................................................................60
Following an Automotive Route ...........................................63

Automotive Mode Pages ...................................................64

Map Page ................................................................................64
Current Route Page ...............................................................65
Trip Computer Page ..............................................................66

Main Menu ..........................................................................67

Main Menu Tabs .....................................................................67
GPS Tab ..................................................................................68
Weather Tab ...........................................................................68
XM Tab ....................................................................................69
Route Tab ...............................................................................70
Points Tab ..............................................................................70
Track Tab ................................................................................71
DSC Tab ..................................................................................71
Sonar Tab ...............................................................................75
Alarms Tab .............................................................................76
Calendar Tab ..........................................................................78
Celestial Tab...........................................................................79
ii GPSMAP 378/478 Owner’s Manual
IntroductIon > tAble of contents