Magellans Gps Receiver 320 Users Manual 315/320 Cover

Magellan GPS 320 MANUAL000013645

2015-02-09

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GPS 315/320

User Manual

WARNINGS

USE GOOD JUDGEMENT

This product is an excellent navigation aid, but does not replace the need for

careful orienteering and good judgement. Never rely solely on one device for

navigating.

USE CARE

The Global Positioning System (GPS) is operated by the U.S. Government, which is

solely responsible for the accuracy and maintenance of GPS.

The accuracy of position fixes can be affected by the periodic adjustments to GPS

satellites made by the U.S. Government and is subject to change in accordance

with the Department of Defense civil GPS user policy and the Federal

Radionavigation Plan. Accuracy can also be affected by poor satellite geometry.

USE PROPER ACCESSORIES

Use only Magellan cables and antennas; the use of non-Magellan cables and

antennas may severely degrade performance or damage the receiver, and will void

the warranty.

LICENSE AGREEMENT

Magellan grants you, the purchaser, the right to use the software supplied in and

with MAGELLAN GPS products (the "SOFTWARE") in the normal operation of the

equipment. You may make copies only for your own personal use and for use

within your organization.

The SOFTWARE is the property of MAGELLAN and/or its suppliers and is protected

by United States copyright laws and international treaty provisions; therefore, you

must treat this SOFTWARE like any other copyright material.

You may not use, copy, modify, reverse engineer or transfer this SOFTWARE

except as expressly provided in this license. All rights not expressly granted are

reserved by MAGELLAN and/or its suppliers.

* * *

No part of this handbook may be reproduced or transmitted in any form or by any

means, electronic or mechanical, including photocopying and recording, for any

purpose other than the purchaser's personal use without the prior written

permission of Magellan Corporation.

Magellan™, GPS 315™, GPS 320™ and DataSend™ are trademarks of Magellan

Corporation.

630321 C

Table of Contents

Introduction ............................... 1

Conventions Used in this Manual ..............1

GPS 315/320 Receiver ...........................2

Getting Started .......................... 3

Receiver Accuracy...................................3

Installing the Batteries ..............................3

Proper Handling - Signal Reception ...........4

Power On ..............................................4

Initialize .................................................4

Initialize for First Time Use .................4

Selecting Primary Usage ..........................5

Getting a Fixed Position ...........................6

Saving Your Waypoint .............................6

Basic Operation ......................... 7

Entering Information ................................7

Navigation Screens .................................7

Using the Status Screen ............................8

Using the Position Screen .........................9

Viewing the Secondary Coordinate Screen 9

Using the NAV 1 Screen ........................10

Customizing the NAV 1 Screen ...............10

Using the Compass Screen .....................11

Customizing the Compass Screen............11

Using the NAV 2 Screen ........................12

Customizing the NAV 2 Screen ...............12

Using the Plot Screen .............................13

Selecting PAN-N-SCAN .........................14

Setting Track History ..............................14

Clearing Track History ...........................14

Setting Up the Plotter ............................. 15

Setting Hide Data/Show Data ................16

Using the Road Screen...........................17

Customizing the Road Screen .................17

Using the Speed Screen .........................18

Resetting the Odometer ..........................18

Resetting the Trip Odometer....................19

Setting the Speed Average .....................19

Using the Time Screen ...........................20

Selecting Time Format ............................ 20

Resetting Elapsed Time........................... 21

Reference ................................ 22

Working with Waypoints........................23

Creating a User Waypoint .....................24

Editing a User Waypoint ........................ 24

Creating/Editing/Deleting a Message in a

User Waypoint .....................................25

Saving Changes to a Selected Waypoint .25

Deleting a User Waypoint ......................25

Finding a Non-UserWaypoint .................26

Sorting a Waypoint ............................... 26

Projecting a Waypoint ...........................26

DataSend™ CD (optional) ......................27

iii

Using DataSend™ ..........................27

Working with Routes ..............................28

Creating/Clearing a GOTO ...................28

Creating a GOTO on the Plotter Screen ...28

Creating a Man Over Board Route .......... 29

Creating a Backtrack Route ....................29

Creating a Multi-Leg Route ..................... 30

Viewing/Editing a Route .................31

Inserting a Leg ...............................31

Changing a Waypoint in a Route .....31

Adding a Waypoint at the End of

a Route .........................................32

Deleting a Waypoint in a Route........32

Saving a Route ............................... 32

Activating/Deactivating a Route .......32

Reversing a Route ........................... 33

Using Plot View in a Route ...............33

Deleting a Route .............................33

Working with TrackRoute........................34

Auxiliary Functions .................. 35

Working with Sun/Moon and Fish/Hunt ..35

Selecting the Simulate Mode...................36

Selecting Contrast .................................36

Selecting Alarm/Message ......................37

Accessing the Alarm/Message Menu ...... 37

Selecting Anchor Alarm .........................37

Selecting Arrival Alarm ..........................38

Selecting XTE Alarm ..............................38

Selecting Proximity Alarm .......................39

Selecting GPS Fix Alarm ........................ 40

Viewing the Alarm/MSG Menu ..............40

Selecting Alarm Defaults ........................ 40

Clearing Alarm Defaults .........................40

Customizing ............................. 41

Selecting Setup ..................................... 41

Selecting Initialize .................................41

Disabling NAV Screens ..........................41

Selecting a Coordinate System ...............42

Selecting Map Datum ............................43

Selecting Elevation Mode ....................... 43

Selecting Time Format ............................ 44

Selecting NAV Units ..............................44

Selecting North Reference ......................44

Selecting Light Timer ..............................45

Selecting the Beeper ..............................45

Selecting Personalize ............................. 45

Selecting Clear Memory ........................46

Selecting NMEA ................................... 46

Selecting Baud Rate...............................47

Connecting to DGPS.............................. 48

Troubleshooting ....................... 49

Commonly Asked Questions ................... 50

Contacting Magellan ............................. 51

Shipping Your Receiver .......................... 51

NMEA Data Messages .............. 52

Available Datums .................... 58

Specifications ........................... 59

Attaching the Wrist Lanyard..... 60

Accessories .............................. 61

Glossary .................................. 62

Index....................................... 66

Magellan GPS 315/GPS 320 1

Introduction

Congratulations on your purchase of the Magellan GPS 315/GPS 320

receiver. Since introducing the world’s first commercial, hand-held GPS

receiver in 1989, Magellan has led the way with innovative GPS

products to meet a wide range of positioning and navigation needs.

The receiver is designed to get you out into the “Great Outdoors”

rather than spending hours reading the user’s manual. In order to get

you outdoors quickly, the manual is designed with key sequences rather

than wordy sentences.

Before you begin, make sure that your package includes the items listed

on the box. If any of these items are missing, please contact your local

Magellan dealer or distributor.

Conventions Used in this Manual

The manual is divided into chapters: Introduction, Getting Started, Basic

Operation, Reference, Customizing, Troubleshooting and Glossary. There

are also subchapters that describe NMEA, Datums and Accessories.

It is very important that you read through the Getting Started chapter

first as it prepares your receiver for use and provides basic instruction.

The Basic Operation chapter describes the features found in your

receiver including step-by-step instructions on their use.

The Reference section contains information to help you navigate using

waypoints, routes and auxiliary functions. Following is the Customizing

chapter, that allows you to establish options you want set in the receiver.

The Troubleshooting chapter gives you a problem and answer series to

guide you. The final chapter, Glossary, defines terms that may be

unfamiliar to you.

The manual is to be used with either the GPS 315 or the GPS 320.

These differ in that the GPS 315 has a database of worldwide cities

consisting of major, large and medium cities. The GPS 320 has a

database of worldwide cities as well as lighthouses, fixed navaids, buoys,

large and medium cities for three different regions of the world (North/

Central/South America, Europe/Africa and Australia/Asia).

2Magellan GPS 315/GPS 320

Quadrifilar antenna

The ENTER

key confirms

data entries or

menu selec-

tions.

The NAV key accesses

the navigation screens.

The QUIT key cancels

the operation of the last

key press and can be

used to back through

the NAV screens.

The MARK key

creates waypoints

and stores the

current position.

The LIGHT key turns

the light on and off.

The GOTO key

creates a direct

route to any

waypoint stored in

memory.

The MENU accesses

waypoint, route and

setup functions.

The PWR key turns the

receiver on and off.

The ARROWs enter

information and scroll

through menus.

GPS 315/320 Receiver

Magellan GPS 315/GPS 320 3

Getting Started

This section shows you how to use your receiver for the first time and

explains:

•Accuracy

•Battery Installation

•Primary Usage

•Getting a Fixed Position

Receiver Accuracy

The satellite constellation that provides the GPS information used by

the receiver is maintained by the Department of Defense (DoD). GPS

positioning, for general use, provides 25 meter RMS accuracy or better.

Since the signals generated by these satellites are publicly accessible, the

DoD has introduced errors in the satellite signals for security reasons.

These errors are referred to as Selective Availability (SA).

At present, your GPS position will be accurate within 100 meters

horizontally and 150 meters vertically. Due to these errors introduced

by SA, it is possible to get readings outside of these values at times.

Installing the Batteries

The receiver uses two AA batteries that are installed at the back. To

remove the battery cover, turn the ring of the battery door screw

counter-clockwise until the battery

cover can be removed.

Insert the new batteries as shown, being

sure to respect the polarities, and replace

the cover.

Replace the screw and turn the ring

clockwise until the battery door is held

in place securely. Avoid overtightening

the battery door screw.

Once the batteries have been removed,

the receiver loses time and date after 20 minutes.

4Magellan GPS 315/GPS 320

Proper Handling - Signal Reception

Clear View of the Sky. Because the receiver attains information it needs

from satellites orbiting the earth, the antenna needs to have a relatively

unobstructed view of the sky. This allows the receiver to choose from

all satellites currently available.

If the view of the sky is poor, (large cliffs or buildings, heavy foliage or

other obstructions) the satellite signals can be blocked and the receiver

may take longer to compute a position fix.

Holding the Receiver. The receiver is designed to fit comfortably in

your hand. Hold the receiver in the palm of your hand with the antenna

pointing towards the sky.

You do not need to initialize your receiver each time you use it unless the

memory has been cleared or if it has been transported more than 300 miles

while turned off.

Initialize for First Time Use

If the Initialize screen does not appear, then the receiver has already

been initialized. The other steps in this procedure are not required.

Initialize

* If you do not know your elevation, press

ENTER

Power On

PWR

If after powering the receiver on, you do not press ENTER within 10

seconds, the receiver will shut off automatically.

PWR ENTER

Select

region

ENTER

Select

area

ENTER

Enter

elevation

ENTER

INITIALIZE

screen

Enter

time

ENTER

Enter

date

ENTER

Select

language

ENTER

Magellan GPS 315/GPS 320 5

Selecting Primary Usage

A screen will be displayed asking your primary use for your receiver,

MARINE or LAND. The default is MARINE.

ENTER

You have completed the Initialization. The STATUS screen will appear

on your receiver.

The following chart shows the terminology that your receiver uses

while in land or marine mode. For purposes of this manual, it will be

assumed that the receiver is in the marine mode.

Land Marine

Speed SPD SOG

Bearing BRG BRG

Distance DST DST

Heading HDG COG

Velocity Made Good VMG VMG

Course To Steer CTS CTS

Estimated Time of Arrival ETA ETA

Time To Go TTG ETE

Cross Track Error XTE XTE

Recorded Position Landmark Waypoint

Units of Measure MILES/MPH NM/KNOTS

or KM/KPH

6Magellan GPS 315/GPS 320

Getting a Fixed Position

Now you should go outside in an area where you can get a clear view of

the sky. The receiver will begin acquiring data from the satellites in

view and will display the progress on the STATUS screen. Once the

receiver has computed a fixed position, the POSITION screen will be

displayed.

Saving Your Waypoint

Once the receiver has computed your current position, you may save

(MARK) this position as a waypoint.

Saving Your Position with a Receiver-Created

Name.

This is a fast way to save your position.

MARKMARK

Saving Your Position with a User-Created Name.

MARK ENTER Enter

data MARK

You can save up to 500 waypoints in your receiver and refer back to

them at any time.

Creating a GOTO

A GOTO is a route that guides you from your current position to any

waypoint in the receiver’s memory.

GOTO Select

waypoint ENTER

Select

category ENTER

This completes the Getting Started section.

The following Basic Operation section will familiarize

you with the NAV screens and more detailed

functions.

Magellan GPS 315/GPS 320 7

Basic Operation

Entering Information

Throughout this user manual there are some key presses that will be

used often, so please keep them in mind while setting up and navigat-

ing. When entering data...

• Use the for making selections and moving up or down.

• Use the to move the cursor to the left or right and page

through menus.

• Press

QUIT

to return to the previous screen and to exit a

screen or end a process.

Navigation Screens

The nine NAV (Navigation) screens (STATUS, POSITION, NAV 1,

COMPASS, NAV 2, PLOT, ROAD, SPEED and TIME) provide you

with necessary information you will need to use the receiver as a

navigational tool.

NAV screens can be viewed by pressing

NAV

from any screen. While

viewing any NAV screen, you can use the

NAV

QUIT

to step

through the sequence of NAV screens.

All screens, except STATUS and POSITION screens, can be disabled by

turning them off in the NAV SCREENS portion of SETUP. The

TIME screen default is off and can be turned on in SETUP as well.

8Magellan GPS 315/GPS 320

Using the Status Screen

The STATUS screen gives you the general well-being of your

receiver by showing you satellite status, signal strengths and

battery life.

Pic

Once the

receiver has

computed a

fixed position,

the STATUS

screen will be

replaced by the

POSITION

screen.

STATUS

POWER

001112

782385

Satellite

Signal Chart

Satellite Position

Graph

Battery Life

Indicator

Satellite

Numbers

Satellite

Positions

Satellite Positions

Where the satellite is

located relative to your

position.

Satellite Numbers

Identifies the satellite

shown on the chart and

on the Satellite Position

Graph.

Battery Life Indica-

tor Shows approximate

remaining battery life for

batteries in the receiver.

Satellite Signal

Chart Displays satellite

signal strengths shown in

gray for weak signals and

black for strong signal.

When the receiver first

tracks a satellite, the

strength bar will not be

solid until ephemeris is

collected. This takes about

30 seconds if uninterrupted.

Satellite Position

Graph The two circles

indicate satellite elevation,

the outer circle represents

the horizon and the inner

circle represents 45ß from

the horizon. The center of

the circle is 90ß.

The Battery Life

Indicator was

designed to be

used with AA

alkaline batteries.

With AA lithium

batteries, you will

have more battery

life available than

shown on the

Battery Life

Indicator.

Magellan GPS 315/GPS 320 9

Using the Position Screen

The POSITION screen displays the coordinates of your last

computed position and basic navigation data. You also have

the option of viewing your position using another coordi-

nate system.

150

120 S

POSITION

06.52

117˚49.56W

ELEV 900 FT

11:23:35 PM

SPEED

5.38

EPE 112 FT

TRIP

238.8

COURSE 150

23JAN97

When you are

stationary, the

receiver begins the

averaging mode.

While averaging,

the receiver

continuously

takes fixes to

create an average.

Once you begin

moving, averaging

stops automati-

cally.

Position

Coordinates

Time

Estimated

Position Error

Distance

Traveled

Course

Second

Coordinate

System access

Elevation

Speed

Compass

Position Icon

Position Icon Your

current position on the

compass.

Estimated Position

Error May display the

estimated position error

value or DGPS if DGPS is

being fed to receiver, or

Simulate if simulate is on.

Second Coordi-

nate System

Access Displays

your present position in

a secondary coordi-

nate system. Datums

can be selected under

SETUP.

Date

Viewing the Secondary Coordinate Screen

From the POSITION screen, use the left/right ARROWs to

view the Second Coordinate System access screen.

10 Magellan GPS 315/GPS 320

Using the NAV 1 Screen

The NAV 1 screen displays your destination along with four

customizable navigation data and a graphical compass.

DST 50.2

SOG 8.2

XTE 3.80

VMG 7.2

BRG

COG 150

150

120 S

127

TO: FISH

Customizable

Navigation

Data

Destination

Name

Destination

Icon

Position Icon

Destination Icon This

icon represents where you

want to go.

Ideally, when you

are navigating, the

Position Icon and

the Destination

Icon should line

up, one above the

other.

When the bearing

to your destina-

tion cannot be

displayed within

the compass, an

arrow will be

displayed to

indicate the

steering direction

you should be

traveling.

Compass

Customizing the NAV 1 Screen

The NAV 1 screen can be changed to show the navigation

data that you prefer to view.

From NAV 1

screen

Select

CUSTOMIZE

ENTER

Choose

field

ENTER

Select

data type

ENTER

FIG

AQUIT

Customizable

Navigation Data You

can change the four

navigational fields. You

can choose from BRG,

DST, SOG, COG, VMG,

CTS, ETA, ETE, XTE,

TRN, ALT, TME and

blank.

Figure A. Select

the data field to

appear on the

NAV 1 screen.

WPT NAMES

OFF

WPT NAMES

OFF

WPT NAMESCUSTOMIZE

BRG 027°

DST 50.2

SOG 8.2

COG 056°

VMG 7.2

CTS 028°

ETA 01:09P

ETE 02H24M

XTE L.2

TRN L26°

ALT 83

TME 01:09P

BLANK

Magellan GPS 315/GPS 320 11

Using the Compass Screen

As well as displaying the customizable navigation data, the

COMPASS screen provides a pointer compass to help you

reach your destination.

Steering Indicator

Displays the bearing of

the destination relative

to the course over

ground.

Destination Icon

Shows the general

direction you should be

traveling.

COG Indicator Displays

direction you are traveling.

The COG indicator always

points up and the compass

rotates according to the COG.

When the COG

Indicator and the

Steering Indicator

point in the same

direction, you are

on course.

The

NorthFinder™

feature displays

sun and moon

icons, above the

horizon, for you

to determine the

direction of north

and your

destination. Align

the sun on the

COMPASS screen

with the sun in

the sky. When

aligned, the

Steering Indicator

will point you in

the direction you

should travel to

reach your

destination.

Customizing the Compass Screen

The COMPASS screen can be changed to show the naviga-

tion data that you prefer to view.

From COMPASS

screen

Select

CUSTOMIZE

ENTER

Choose

field

ENTER

Change

field

ENTER

FIG.

QUIT

WPT NAMESWPT NAMESWPT NAMESCUSTOMIZE

BRG ---°

DST ---

SOG ---

COG ---°

VMG ---

CTS ---°m

BLANK

Figure B. Select

the data field to

appear on the

COMPASS

screen.

TO: HOME

DST

3.52

SOG

2.7

BRG

127

COG

156

COG Indicator Compass

Destination

Icon

Sun Icon

Destination

Name

Steering

Indicator

Moon Icon

12 Magellan GPS 315/GPS 320

Using the NAV 2 Screen

The NAV 2 screen displays four customizable navigation

data. The NAV 2 screen is designed to help you see the

screen when your receiver is mounted at a distance from

you.

TO: CAMP

BRG

COG

SOG

DST

14.2˚

171˚

11.2

50.2

Destination

Name

Customizable

Navigation

Data

Customizable

Navigation Data.

You can change the

four navigational data

fields. You can

choose from BRG,

DST, SOG, COG,

WPT NAMES

OFF

WPT NAMES

OFF

WPT NAMESCUSTOMIZE

BRG 027°

DST 50.2

SOG 8.2

COG 056°

VMG 7.2

CTS 028°

ETA 01:09P

ETE 02H24M

XTE L.2

TRN L26°

ALT 83

TME 01:09P

BLANK

Customizing the NAV 2 Screen

The NAV 2 screen can be changed to show the

navigation data that you prefer to view.

Figure A. Select the

data field to appear

on the NAV 2

screen.

From NAV 2

screen

Select

CUSTOMIZE ENTER

Choose

field ENTER Change

field ENTER

FIG.

AQUIT

VMG, CTS, ETA, ETE,

XTE, TRN, ALT, TME and

blank.

Magellan GPS 315/GPS 320 13

Using the Plot Screen

The PLOT screen is a mini map that shows where you have

traveled and where you want to travel. You can view the

active route, your current position and the other waypoints

and destination in the PLOT screen.

TO: FISH

BRG

351

DST

3.52

2.0

HOME

FISH 2

FISH

DOCK

BUOY

Distance to

Destination

North Indicator

Waypoint Icon

Current Position

Icon

Track History

Plot Scale

Active Route

Destination Icon

Bearing to

Destination

Name

Active Route

Indicates the direction

required to reach your

destination.

Plot Scale Can be

changed by using the

left/right arrows. The

scale ranges from .1 to

200 miles.

PAN-N-SCAN, an

additional feature,

allows you to scroll

through the PLOT

screen enabling you

to create waypoints

and GOTOs.

Track History

Automatically records

where you have been.

14 Magellan GPS 315/GPS 320

The ARROWs can be used to move the cursor. If the cursor

is over the waypoint icon when MENU is pressed, the menu

will be displayed with WPT INFO added. Moving the

cursor over a waypoint brings up the name, bearing and

distance. Pressing MENU and selecting WPT INFO

displays full information.

In PAN-N-SCAN mode, you can zoom in by pressing the

ENTER key. Once the lowest scale is reached (0.1 mile),

pressing ENTER zooms out to the highest scale (200 miles).

Setting Track History

Using TRACK HISTORY records where you have been by

automatically storing locations, as “dropping bread crumbs”

from your starting point as you travel. This is useful when

you want to return to your starting point.

From PLOT

screen

Select

TRACK HIST

ENTER

Change

field

ENTER

Clearing Track History

From PLOT

screen

Select

CLR TRACK

ENTER

Select

ENTER

Selecting PAN-N-SCAN

By using PAN-N-SCAN, you can look ahead or review

where you have traveled according to waypoints, routes and

track history.

From PLOT

screen

Select

PAN-N-SCAN

ENTER

Magellan GPS 315/GPS 320 15

WPT NAMES

OFF

WPT NAMESWPT NAMESORIENT

TRACK UP

COURSE UP

NORTH UP

Turning Plot Rings On or Off. You may want to estimate

the distance to a point on the plotter. To assist you, turn the

PLOT RINGS option on. The distance between each plot

ring is equal to the scale, therefore, at most you will see a

portion of 2 rings at one time.

From PLOT

screen MENU Select

PLOT SETUP ENTER

ENTER

Select

PLOT RINGS

Select

on or off ENTER

Setting Up Course Projection. You may want to know

where you will be after a specified period of time based on

your current speed and heading.

WPT NAMES

OFF

WPT NAMESWPT NAMESPROJECTION

OFF

1 MINUTE

2 MINUTES

5 MINUTES

10 MINUTES

From PLOT

screen

Select

PLOT SETUP

ENTER

Select

COURSEPROJ

Select

time

ENTER

FIG

From PLOT

screen MENU Select

PLOT SETUP ENTER

ENTER

Select

ORIENTATION

Select

orientation ENTER

FIG.

Figure A. You

can choose from

TRACK UP

(direction you

are moving at the

top of the

screen),

COURSE UP

(destination of

the current leg at

the top of the

screen) and

NORTH UP

(north at the top

of the screen).

Figure B. You

can choose

from OFF, 1, 2,

5 and 10

minutes.

Setting Plotter Orientation.

Setting Up the Plotter

This menu allows you to change the orientation, turn the

plot rings on or off, set the course projection and set the

plotter scale.

A solid black line will appear starting from your position

to the projected position.

16 Magellan GPS 315/GPS 320

Setting Hide Data/Show Data

You may want bearing and distance to be hidden. You can

choose to either hide these navigation data fields or have the

fields present. Under HIDE DATA/SHOW DATA, you

can turn these fields on or off.

From PLOT

screen MENU Select

HIDE DATA

SHOW DATA

ENTER

Depending on

which has been

selected previously,

you may need to

select SHOW

DATA to bring the

fields into view.

Setting Up Plot Scales. You can set up the maximum scales

at which the waypoints appear on the plotter screen.

From PLOT

screen MENU Select

PLOT SETUP

Select

category ENTER

ENTER

Select ENTER

Select

scale

FIG

ENTER

* Selecting OFF will turn the scales off. If you select either

ICONS ONLY or ICONS/NAMES, you will be prompted

to change the plot scales for a waypoint.

WPT NAMES

OFF

WPT NAMES

PLOT SCALES

0.1

0.2

0.3

0.5

0.8

100

200

Figure A. You may

select the scale for

the waypoint to

appear on the

plotter. The

number you select

is the maximum

scale in which the

icon will appear.

Magellan GPS 315/GPS 320 17

Customizing the Road Screen

The ROAD screen can be changed to show the navigation

data that you prefer to view.

WPT NAMESWPT NAMESWPT NAMESCUSTOMIZE

BRG ---°

DST ---

SOG ---

COG ---°

VMG ---

CTS ---°m

BLANK

Figure B. You can

choose from BRG,

DST, SOG, COG,

VMG, CTS and

blank.

From ROAD

screen MENU

Choose

field

ENTER

Select

CUSTOMIZE ENTER

Choose

field ENTER

FIG.

BQUIT

TO: FISH

BRG

127

DST

3.52

COG

156

SOG

2.7

Customizable

Navigation

Data

Desired

Route

Position

Icon

Destination

Icon

Destination

Name

Navigation Data

You can change the four

navigation data fields.

You can choose from

BRG, DST, SOG, COG,

VMG, CTS and blank.

Using the Road Screen

The ROAD screen displays four customizable navigation

data fields, at the top of the screen, and shows your

position on the desired route.

When the

destination icon

is straight ahead,

you are on

course. If you are

off course and

the destination

icon is off the

screen, an arrow

will appear to

point you in the

direction to get

back on course.

Desired Route The

direction to travel to

reach your destination.

18 Magellan GPS 315/GPS 320

Using the Speed Screen

While using the SPEED screen, you can view the

graphical speedometer, odometer and trip odometer as

well as the numerical bearing, course over ground and

speed over ground.

BRG COG

027m056

SOG 14.2 K

51015

ODOMETER

TO: CAMP

00542

054

TRIP

°°

Destination

Name

Navigation

Data

Average

Speed Icon

Instantaneous

Speed

Graphical

Speedometer

Odometer

Trip

Odometer

Resetting the Odometer

You may want to reset the Odometer field to zero.

From SPEED

screen

Select

ODOM RESET

ENTER

Select

yes or no

ENTER

FIG

WARNING

RESET

ODOMETER

TO 000?

YES

Figure A. Select

“Yes” to reset the

odometer.

Graphical Speedom-

eter Scale can be

increased or decreased

by using the right/left

arrows.

Instantaneous Speed

A graphical representation

of speed over ground

(SOG).

Magellan GPS 315/GPS 320 19

Resetting the Trip Odometer

You may want to reset the Trip field to zero.

From SPEED

screen

Select

TRIP RESET

ENTER

Select

yes or no

ENTER

Setting the Speed Average

You may want to reset the Speed Average field in your

receiver.

From SPEED

screen MENU

Select

SPEED AVG ENTER

Select

time ENTER

FIG

The default is 30 seconds.

SPEED AVG

TRIP

5 SECONDS

30 SECONDS

1 MINUTE

5 MINUTES

1 HOUR

Figure B. You can

set the timing for

Speed Averaging.

You can choose

from TRIP, 5, 30

seconds, 1, 5

minutes or 1 hour.

TRIP option is for

averaging speed over

the entire trip.

20 Magellan GPS 315/GPS 320

Using the Time Screen

The TIME screen displays the current time, estimated

time enroute, time of arrival, and elapsed time in regards

to the route you are navigating in.

The default for

the TIME screen

is off.

03:54:21

01:09:24

02:24:56

04:34:20

ELAPSED

ETE

TIME

OF ARRIVAL

Time

Time of

Arrival

Elapsed

Time

Estimated

Time

Enroute

Time Can be custom-

ized to correct the

current time and to select

the time format.

Estimated Time

Enroute (ETE)

All data shown

on the TIME

screen applies to

the route you are

navigating in.

TIME FORMAT

LOCAL 24HR

LOCAL AM/PM

UTC

Selecting Time Format

You may need to correct the current time or change the

time format.

From TIME

screen

Select

FORMAT

ENTER

Select

format

ENTER

FIG

Change

fields

ENTER

If LOCAL 24HR or

LOCAL AM/PM

Time of Arrival (OF

ARRIVAL)

Elapsed Time

(ELAPSED)

Figure A. You can

choose from

LOCAL 24HR,

LOCAL AM/PM

and UTC.

If UTM is chosen you will not be prompted to make the

time change.

Magellan GPS 315/GPS 320 21

Resetting Elapsed Time

You may want to reset the elapsed time to zero.

From TIME

screen MENU

Select

RESET ELAP ENTER

You have completed the basic operation for

your receiver. From the information pro-

vided, you can now navigate from place to

place quickly and easily.

The following chapters provide you with

additional information on using your receiver

that build on what you have learned.

22 Magellan GPS 315/GPS 320

The Reference section contains information that will help

you navigate using your receiver. Now that you have read

the Basic Operation section, you have reviewed the basic

usage. The Reference section will cover waypoints, routes,

and auxiliary functions.

The Working with Waypoints section tells you how to

create, edit, delete, project and sort waypoints. These

functions will guide you in the uses of waypoints. You can

create your own waypoints (known as User waypoints) or

use the waypoints already in the receiver’s memory (Non-

User waypoints). You can store up to 500 user positions

which can be used to build routes for navigation.

As stated earlier in the user manual, the GPS 315 has a

database of worldwide cities and the GPS 320 has a

database of cities and marine navaids for three different

regions of the world: North/Central/South America,

Europe/Africa and Australia/Asia.

The Working with Routes section tells you of the four

different types of routes consisting of GOTO, BACK-

TRACK, MOB and MULTI-LEG ROUTE. A route is a

planned course of travel defined by a series of waypoints

saved in the receiver’s memory. The receiver holds 20

routes with 30 legs. The route function allows you to

create, activate/deactivate, view/edit or delete any one of

the 20 routes.

The Auxiliary Function section tells you how to select the

Sun/Moon and Fish/Hunt options, contrast, simulate

mode and the alarms and message functions. You can

choose from the Anchor alarm, Arrival alarm, XTE alarm,

Proximity alarm and GPS Fix alarm. These alarms can be

reset to the alarm default settings or can be cleared of

defaults.

Following, you will find the Customizing section. Cus-

tomizing allows you to use the Setup menu to establish

the options you would like to set in your receiver.

Reference

Magellan GPS 315/GPS 320 23

Working with Waypoints

This section tells you how to edit, delete, project and sort

waypoints. You can store up to 500 user positions which

can be used to build routes for navigation.

Waypoints consist of two types, User and Non-User. The

User types are made up of waypoints that you can save in

the receiver’s memory. You can edit and delete these

waypoints, if you wish. The Non-User types display

locations, their coordinates and a description. These are

permanently stored in the receiver’s memory and cannot be

deleted unless written over by waypoints downloaded from

the DataSend™ CD.

To help you understand the difference, the chart below

shows the functions of the User and Non-User waypoints.

You can store up to

10 Non-User

waypoint categories.

WPT Types Available Functions

User

Non-User

• Create

• Edit

• Delete

• Project

• Sort

• Find

• Project

• Sort

GPS 315 GPS 320

Worldwide major

cities

Worldwide large

and medium

cities

Worldwide major

cities

Regional large and

medium cities

Regional buoys,

lighthouses and

fixed navaids

The chart below shows the differences between the GPS 315

and GPS 320.

24 Magellan GPS 315/GPS 320

Editing a User Waypoint

Editing a Selected Waypoint

Editing Waypoint Fields. Follow the instructions on

selecting a waypoint and use the following to edit the

desired fields.

EDIT WPT

34˚06.56N

117˚49.60W

900FT

11:23:35PM

12JUN97

NO CAMP

FIRES

SAVE EDITS

CLEAR MSG

WPT003

EDIT WPT

SORT WPT

DELETE WPT

PROJECTION

WAYPOINTS

ROUTES

SETUP

SUN/MOON

FISH/HUNT

CONTRAST

ALARM/MSG

Figure A. This menu

allows you to select

the edit waypoint

mode. Only User

waypoints can be

edited.

Select

data field ENTER ENTER

Make

changes

FIG

From any

NAV screen MENU

Select

WAYPOINTS ENTER

Select

waypoint MENU

Select

EDIT WPT ENTER

FIG.

Select User

category

ENTER

Figure B. You may

change any of the

data fields in this

screen.

Creating a User Waypoint

A waypoint is a recorded position that can be used in a route

or a GOTO. You can save up to 500 user waypoints in your

receiver. You can create a waypoint with a receiver-generated

name (WPT001, WPT002, WPTxxx) by pressing:

MARKMARK

To create a waypoint with a name of your choice or if you wish

to change any data field while entering a waypoint, use the

following:

MARK ENTER

Select

data field MARK

Make

changes ENTER

As you are working with waypoints, you will notice that the

cities (non-user waypoints) are divided into categories. This

division is based on the population of the city using the

following guidelines:

Major city 500,000+

Large city 100,000 – 500,000

Medium city 20,000 – 100,000

Small city * Less than 20,000

* available in DataSend CD.

Magellan GPS 315/GPS 320 25

To create a message. Follow the instructions on selecting a

waypoint and use the following to create/edit/delete a

waypoint.

Select

CREATE MSG

ENTER

Make

changes

ENTER

To delete a message. Follow the instructions on selecting

a waypoint.

Select

CLEAR MSG

ENTER

To save your edits. Follow the instructions on selecting a

waypoint.

EDIT WPT

CAMP

34˚06.56N

117˚49.60W

900 FT

11:23:35PM

12JUN97

CREATE MSG

SAVE EDITS

Select

SAVE EDITS ENTER

FIG.

Figure C. Once

you have made

your changes, be

sure to select

SAVE EDITS.

Deleting a User Waypoint

You may find that you have saved waypoints that you no

longer use. If so, you can delete these unnecessary

waypoints.

Once these waypoints are deleted, you cannot

undo this process or retrieve these deleted

waypoints.

DELETE

WPT023?

YES

Figure D. This

screen prompts

you to select YES

or NO in

deleting the

waypoint named.

From any

NAV screen

ENTER

Select

WAYPOINTS

Select

category

ENTER MENU

Select

DELETE WPT

ENTER

Select

yes or no

ENTER

FIG

Select

waypoint

26 Magellan GPS 315/GPS 320

Sorting a Waypoint

You may want to change how the waypoints are sorted.

WPT SORT

ALPHABETIC

NEAREST

ICON/NAME

Figure A. You can

choose from

ALPHABETIC

(shows all

waypoints),

NEAREST

(shows closest 20

waypoints) and

ICON/NAME

(cannot sort Non-

User waypoints).

From any

NAV screen ENTER

MENU Select

WAYPOINTS

MENU Select

SORT WPT ENTER

Select ENTER

FIG

Select

category

ENTER

Finding a Non-User Waypoint

To simplify your search for a waypoint, you can find it using

the smart scroll function.

Select

FIND

From any

NAV screen

ENTER

Select

WAYPOINTS

Select

category

ENTER

Find

waypoint

To find the

waypoint use the

ARROWs to

change the letters.

For example, to

find Dodger

Stadium, use the

ARROWs to

change the first

letter to “D”.

Then use the

ARROWs to find

the second letter,

“O”. Continue

until the name is

found.

Projecting a Waypoint

This function allows you to create a waypoint at a certain

distance and direction from an existing waypoint.

You can change any of the three sections in the PROJEC-

TION screen. Once you have the necessary information in

the data fields and the receiver has projected the position,

you can save the position by pressing

MARK

In the G.C. (Great

Circle) BRG/DST

field, you can

input the bearing

and distance into

the data fields in

order to compute

the projection.

You can also input

information into

the coordinate

fields.

From any

NAV screen

Select

waypoint

ENTER

Select

WAYPOINTS

ENTER MENU

Select

PROJECT

ENTER

Make

changes

ENTER

Select

category

ENTER

Select

field

ENTER MARK

Magellan GPS 315/GPS 320 27

DataSend™ CD (optional)

DataSend™ software contains a database of waypoints that

can be sent to your receiver and are broken down into

multiple categories. The software allows you to select a

geographical area and enable waypoint categories for that

location to be transferred into the receiver.

Using DataSend™

After you have installed DataSend™ you are ready to view

and send waypoints to the receiver. While running

DataSend™ you will see a background map of the world

that you can zoom in to see enabled waypoints.

If you want to send waypoints to your receiver, you must

select the geographic area first, then from the waypoint list

you can make your selection of waypoints to send. The

software will compute the amount of memory required and

whether your selection fits into your receiver. If it exceeds

the available receiver memory, either the geographic area, list

of waypoints selected, or both, can be decreased and the

memory requirements recomputed. The list of waypoints

selected in the specified geographic area can then be saved

under a project name you enter.

You can then send the waypoints to the receiver which

replace all waypoints in the receiver. The default waypoints

that came with the receiver can be restored at any time.

Don’t worry about

losing the

waypoints that

came with the

receiver, they are

available on the

CD for retrans-

mission to the

receiver.

28 Magellan GPS 315/GPS 320

Working with Routes

Creating/Clearing a GOTO

A GOTO is a route that guides you from your current

position to any waypoint in the receiver’s memory. As an

example, you can save a waypoint at your home. No matter

where you go, you will always be able to navigate back home

by using GOTO.

To create a GOTO

To clear a GOTO. The CLEAR GOTO function allows

you to delete an active GOTO route.

If there are no active GOTOs, the CLEAR

GOTO will not be displayed in the MENU.

ENTER

MENU Select

CLEAR GOTO

GOTO

Creating GOTO on the Plotter Screen

A GOTO route can be created by selecting a waypoint on

the plotter screen. While on the plotter screen, follow this

procedure to access PAN-N-SCAN and set a GOTO by:

Figure A. Your

menu may differ

depending the

waypoints in

memory.

GOTO

MOB

USER

STADIUM

GOLF COURSE

HALL

GOTO Select

waypoint ENTER

FIG

Select

category ENTER

By selecting the

GOTO destination

waypoint from the

plotter screen, you

can avoid selecting

the wrong

waypoint if its

name is shared

with another

waypoint.

ENTER

Select

PAN-N-SCAN

From PLOT

screen

Move

crosshair

GOTO ENTER

Select

yes or no

When the crosshair is over the waypoint icon, the

waypoint name is displayed at the top of the screen.

Magellan GPS 315/GPS 320 29

Creating a Backtrack Route

Backtrack creates a route that starts from the last point

recorded in track history using the “bread crumbs” saved, to

the first point recorded for track history. By following this

route, you “retrace your steps” back to the starting point.

A route will be created and given a name in the format of

BXXPxx. XX is the BACKTRACK number and xx is the

waypoint number ranging from 01 to 31. For example,

your first backtrack will read B01P01. The backtrack

waypoints will be listed in the menu just as other waypoints.

MOB waypoints will be created and titled MOB001,

MOB002 and so on. If a MOB already exists, the receiver

will give you the option of replacing the MOB.

ENTER

While in MOB

screen

Select

CLEAR MOB

Select

ROUTES

ENTER MENU

Select

BACKTRACK

ENTER

GOTO Select

MOB ENTER

Creating a Man Over Board (MOB) Route

Another type of route is a Man Over Board (MOB).

The MOB route is useful when you want to instantly

create and activate a route to the last computed

position.

To clear a MOB. The CLEAR MOB function allows you to

delete an active MOB route.

30 Magellan GPS 315/GPS 320

Select SAVE

ROUTE ENTER

MENU Select

SAVE ROUTE ENTER

FIG.

Figure B. Use this

menu as an option

for saving your

route.

To end the creation process:

The receiver will display the selected waypoint in the

starting location and will highlight the destination for leg 2.

Press

ENTER

for your next selection. Continue this process

until you have completed the route.

When selecting a navaid for a route, be sure

you are selecting the correct one because

there may be navaids with the same names

in different parts of the world.

INSERT

SAVE ROUTE

WAYPOINTS

ROUTES

SETUP

SUN/MOON

FISH/HUNT

CONTRAST

ALARM/MSG

Select

empty route

Select

ROUTES

ENTER

Select

category

ENTER

FIG.

Select

waypoint

ENTER

* You can combine waypoints of different categories in the

same route.

Creating a Multi-Leg Route

You may want to create a route with your saved

waypoints. For example, if you want to create a route

from your home, to a campsite and then to a favorite

fishing spot, you can create a route that would take you

to each place.

CREATE

DST

BRG

LEG

SAVE ROUTE

Figure A.

Highlight the first

dotted line to

place the first

waypoint in the

multi-leg route.

Magellan GPS 315/GPS 320 31

Changing a Waypoint in a Route. Using your home to

campsite route, you want to go to the fishing spot on

the way to the campsite and not stop at the stream.

You can replace the stream waypoint with the fishing

spot.

While viewing

route Select

waypoint

ENTER

Select

REPLACE

ENTER

Select

waypoint

Select

category

ENTER

Select

waypoint

Select

category

ENTER

Select

waypoint

ENTER

While viewing

route

Select

INSERT

Select

waypoint

FIG.

Select

category

ENTER

VIEW/EDIT

DST

BRG

LEG

HOME

CAMP

SAVE ROUTE

Figure D. You

can add to an

already existing

route by

highlighting the

next available

dotted line.

Viewing/Editing a Route

ACTIVATE

VIEW/EDIT

REVERSE

DELETE

BACKTRACK

PLOT VIEW

WAYPOINTS

ROUTES

SETUP

SUN/MOON

FISH/HUNT

CONTRAST

ALARM/MSG

Select

ROUTES

ENTER

Select route

to edit

Select

VIEW/EDIT

ENTER

FIG

Figure C. To view

or edit a route,

highlight View/

Edit.

Inserting a Leg. With the route you have created, from

your home to a campsite, you can insert a leg in the

route. For example, on your way to the campsite, you

find a stream that you want to stop at on your way back.

You can add the waypoint for the stream to your route.

32 Magellan GPS 315/GPS 320

Activating/Deactivating a Route. While navigating in your

route from home to campsite, you may decide you want to

activate (turn on) the home to campsite route and begin

navigating.

ACTIVATE

VIEW/EDIT

REVERSE

DELETE

BACKTRACK

PLOT VIEW

WAYPOINTS

ROUTES

SETUP

SUN/MOON

FISH/HUNT

CONTRAST

ALARM/MSG

Figure C. The

menu may read

Deactivate,

depending on

which was chosen

previously.

Saving a Route. Once you have made changes to your

route, you may want to save those changes.

INSERT

DELETE

REPLACE

SAVE ROUTE

WAYPOINTS

ROUTES

SETUP

SUN/MOON

FISH/HUNT

CONTRAST

ALARM/MSG

While viewing

route MENU

Select

SAVE ROUTE ENTER

Select

SAVE ROUTE ENTER

FIG.

Figure B. Use

this menu as an

option for

saving the

changes made to

your route.

Select

ROUTES

Select

route MENU

Select

ACTIVATE

FIG

ENTER

Deleting a Waypoint in a Route. On your next trip

navigating from the home to campsite route, you find the

campsite has closed. You may want to delete the campsite

leg from your route.

VIEW/EDIT

DST

BRG

LEG

HOME

CAMP

SAVE ROUTE

While viewing

route

Select

waypoint MENU

Select

DELETE ENTER

FIG

Figure A.

Highlight the

waypoint you

want deleted.

Adding a Waypoint at the End of a Route. You may be

navigating using the home to campsite route and find a

great picnic spot. You would want to add this to the end of

your route.

While viewing

route Select first

dotted line ENTER

Select

waypoint ENTER

Select

category

ENTER

Magellan GPS 315/GPS 320 33

Using Plot View in a Route. While navigating in your

route, you can view the entire route in a small screen

overview with the use of Plot View.

ACTIVATE

VIEW/EDIT

REVERSE

DELETE

BACKTRACK

PLOT VIEW

WAYPOINTS

ROUTES

SETUP

SUN/MOON

FISH/HUNT

CONTRAST

ALARM/MSG

MENU Select

ROUTES ENTER Select

route

Select

PLOT VIEW ENTER

FIG.

Deleting a Route. After your last trip using your home

to campsite route, you decide you no longer want to

visit those sites. You can delete the route from your

receiver.

MENU Select

ROUTES ENTER Select

route

MENU Select

DELETE ENTER

Figure E. Use this

menu for

accessing Plot

View in a route.

While navigating in your route from home to campsite,

you may decide you want to deactivate (turn off) the

route and return to it later.

Select

ROUTES

Select

route

Select

DEACTIVATE

ENTER

Reversing a Route. Once you have reached the end

of your route, you can reverse the route to return

home. For example, Camp...Fish, goes from A to B

to C to D, reversed would read from D to C to B to

A and the title would read Fish...Camp.

Select

ROUTES

ENTER

Select

route

Select

REVERSE

ENTER

FIG.

ROUTE MENU

DISTANCE

0.00

LEGS

1 FISH

...CAMP

2 EMPTY

3 EMPTY

4 EMPTY

5 EMPTY

Figure D. The

route title will

change when you

reverse a route.

34 Magellan GPS 315/GPS 320

Working with TrackRoute

TrackRoute (previously called Map ‘N Track in the receiver)

consists of track points collected by the Track History

function. A track can be up to 1200 points in size.

Activating. By activating the TrackRoute at the top of the

ROUTE MENU, you can navigate from the first created

track point to the last track point, making a reverse BACK-

TRACK. This turns the Track History logging off to keep

from overwriting track points in memory. The top of the

navigation screens will indicate TO: LEGXXXX where

XXXX is between 0 to 1200. As you navigate with the

receiver and pass individual track points, the legs will switch

and countdown until you reach LEG 0 which is your final

destination.

Deactivate. When TrackRoute is deactivated, Track History

logging begins. The track points will be overwritten once

the receiver records new position fixes.

Reverse. This reverses the TrackRoute or the track in Track

History.

Delete. This erases the track points in Track History.

Backtrack. This activates BACKTRACK Route by saving

the Track History as a 30 leg route and activating it.

There may be

some track

points that are

close to each

other causing

the receiver to

skip 1 or more

of these legs.

Magellan GPS 315/GPS 320 35

Fish/Hunt

From any

NAV screen ENTER

MENU Select

FISH/HUNT

Change

location

ENTER ENTER Change

date

ENTER

FIG

SUN/MOON

AT: POS

ON: 23MAR98

FISH/HUNT

EXCELLENT

FROM 06:15AM

TO 07:45 AM

FROM 10:24PM

TO 11:58PM

GOOD

FROM 04:12PM

TO 07:40PM

FROM 06:37AM

TO 10:05AM

Figure B. You can

change the location

(AT) and/or the

date (ON) for the

calculation.

Auxiliary Functions

Working with Sun/Moon and Fish/Hunt

The Sun/Moon function displays solar and lunar calcula-

tions and the Fish/Hunt function displays times for

excellent and good Fishing/Hunting. The default will be

the current position unless the function is accessed from a

waypoint menu or waypoint information screen.

Sun/Moon

SUN/MOON

AT: POS

ON: 23MAR98

RISE/SET

SUN

RISE 06:55AM

SET 05:08PM

MOON

RISE 07:32PM

SET 01:49AM

PHASE

From any

NAV screen

ENTER

Select

SUN/MOON

Change

location

ENTER ENTER

Change

date

ENTER

FIG

Figure A. Yo u

can change the

location (AT)

and/or the date

(ON) for the

calculation.

36 Magellan GPS 315/GPS 320

Selecting the Simulate Mode

The Simulate mode will help you become familiar with your

receiver and how it works by generating artificial position

fixes. By utilizing Simulate, the receiver will create a route

and will continue until you end it. In order to end and

delete the created route, you can return to the window

(where you initiated the mode) and select OFF or power the

receiver off.

If your receiver is not computing a position fix

after exiting Simulate mode, you may need to

reset your present position by reinitializing.

This is due to the Simulated position being

more than 300 miles from your actual present

position.

Figure A. If USER

is selected, you will

be asked to input

SOG and COG.

Default setting: OFF

Selecting Contrast

You may want to change the contrast of your receiver. You

can adjust the brightness depending on your preference.

WPT NAMES

OFF

WPT NAMESCONTRAST

From any

screen ENTER

MENU Select

SETUP

Select

SIMULATE ENTER Select

mode ENTER

FIG.

From any

screen

ENTER

Select

CONTRAST

Adjust

contrast

ENTER

FIG

Figure B. Use the

cursor to adjust

the screen to your

preference.

SIMULATE

OFF

AUTO

USER

Both AUTO and USER modes generate a route and

simulate navigation using that route. AUTO mode uses a

speed of 25 mph and automatically generates a COG to

follow the route. USER mode allows you to set the speed

and COG to values you enter.

Magellan GPS 315/GPS 320 37

Selecting Alarm/Message

Accessing the Alarm/Message Menu

While navigating, you may decide to set an alarm. The

receiver has five types of alarms: Anchor alarm, Arrival

alarm, XTE alarm, Proximity alarm and GPS Fix alarm. To

access the Alarm/MSG menu:

WPT NAMES

OFF

WPT NAMES

WPT001 IS

WITHIN 100

ROCKS ON

LEFT

ATTENTION

From any

screen ENTER

MENU Select

ALARM/MSG

Select

alarm type ENTER

When the pop-up

window for an

alarm is displayed,

the distance and a

message, if there are

any messages, will

appear.

Selecting Anchor Alarm

The Anchor alarm will notify that you have moved from the

set position. For example, while boating, you can set your

Anchor alarm. Once anchored, your boat begins to drift

from the set position, a pop-up window will appear to

notify that you are moving.

WPT NAMES

OFF

WPT NAMES

ANCHOR

OFF

100FT

250FT

500FT

The alarm will sound when the GPS position is at a distance

greater than the distance you have chosen. The alarm will

sound until turned off or the condition is corrected.

Default setting: OFF

While viewing

Alarm/Msg screen

Select

ANCHOR

ENTER

Select

range

ENTER

FIG.

Figure C. You can

choose from OFF,

100, 250 or 500

feet.

38 Magellan GPS 315/GPS 320

Selecting Proximity Alarm

The Proximity alarm will sound when you are within the

proximity of any waypoints you have chosen that are not on

the active route.

Selecting Arrival Alarm

The Arrival alarm will notify you when you are within the

arrival circle of the destination waypoint.

WPT NAMES

OFF

WPT NAMES

ARRIVAL

OFF

100FT

250FT

500FT

0.2 MI

0.5 MI

1.0 MI

While viewing

Alarm/Msg screen

Select

ARRIVAL ENTER

Select

range ENTER

FIG

The alarm will sound and a pop-up window will appear

when the GPS position is within the arrival circle you have

chosen. The pop-up window will display the arrival circle

distance as well as any message you have inputted for the

waypoint. The alarm will sound until turned off.

Default setting: OFF

Selecting XTE Alarm

The XTE (Cross Track Error) alarm will notify you when

you have gone off your set course.

WPT NAMES

OFF

WPT NAMES

XTE

OFF

100FT

250FT

500FT

0.2 MI

0.5 MI

1.0 MI

The alarm will sound when the GPS position is off your set

course by the distance you have chosen. The alarm will

sound until turned off or the condition is corrected.

Default setting: OFF

Figure A. You can

choose from OFF,

100, 250, 500 feet,

0.2, 0.5 and 1.0

miles.

Figure B. You can

choose from OFF,

100, 250, 500 feet,

0.2, 0.5 and 1.0

miles.

While viewing

Alarm/Msg screen

Select

XTE

ENTER

Select

range

ENTER

FIG.

Magellan GPS 315/GPS 320 39

PROX WPTS

REEF

ROCKS

WPT001

WPT002

* DELETE and REPLACE will be displayed only if you

select a used waypoint field.

The alarm will sound and a pop-up window will appear

when the GPS position is within the proximity distance you

have chosen. The pop-up window will display the proxim-

ity distance as well as any message you have inputted for the

waypoint. The alarm will sound until turned off.

Default setting: OFF

WPT NAMES

OFF

WPT NAMESPROXIMITY

OFF

100FT

250FT

500FT

0.2 MI

0.5 MI

1.0 MI

While viewing

Alarm/Msg screen

Select

PROXIMITY

ENTER

Select

range

ENTER

Select

field

ENTER

Select

waypoint

ENTER

FIG

FIG.

Continue until

complete

ENTER

MENU SAVE WPTS

Select

INSERT, DELETE

or REPLACE

Figure D. You can

select any saved

waypoint to list on

the Proximity

waypoint screen.

Figure C. You can

choose OFF, 100,

250, 500 feet, 0.2,

0.5 and 1.0 miles.

Due to government imposed Selective Availabil-

ity, alarm limit values under 100 feet may have

errors. Do not rely on this feature for precise

navigation.

While viewing

Alarm/Msg screen

Select

GPS FIX

ENTER

Select

on or off

ENTER

FIG.

Selecting GPS Fix Alarm

The GPS Fix alarm allows the Poor GPS alarm to be turned

off. Therefore, when the GPS reception is poor, you will

not be notified. Figure E. You can

choose from OFF

or ON.

GPS ALARM

OFF

Default setting: OFF

40 Magellan GPS 315/GPS 320

Viewing the Alarm/MSG Menu

DEFAULTS

CLEAR MSG

WAYPOINTS

ROUTES

SETUP

SUN/MOON

FISH/HUNT

CONTRAST

ALARM/MSG

Selecting Alarm Defaults

After a memory clear, you may want to restore the alarm

default settings.

WPT NAMES

OFF

WPT NAMES

DEFAULTS

RESTORE

DEFAULT

SETTINGS?

YES

While viewing

Alarm/Msg screen

Select

DEFAULTS

ENTER

Select

yes or no

ENTER

FIG

Clearing Alarm Defaults

The message buffer may become cluttered with information.

You can use the CLEAR MSG to delete the messages.

WPT NAMES

OFF

WPT NAMES

CLR MSG

CLEAR

ALL

MESSAGES?

YES

While viewing

Alarm/Msg screen

Select

CLEAR MSG ENTER

Select

yes or no ENTER

FIG

While viewing

Alarm/Msg screen

MENU FIG

Figure A. You can

restore the default

settings or clear all

messages.

Figure B. The

screen verifies the

selection you

made.

Figure C. Once

cleared you cannot

retrieve this

information.

Selecting Language

Use the following steps to change the language (English,

Spanish, German, Italian or Swedish) of the GPS 315 or

GPS 320.

From any

navigation screen

Select

LANGUAGE ENTER

Select

language ENTER

Magellan GPS 315/GPS 320 41

Customizing

Selecting Setup

Setup allows you to initialize the receiver and set system

parameters to your preference.

COORD SYS

MAP DATUM

ELEV MODE

PROJECTION

TRIP RESET

WAYPOINTS

ROUTES

SETUP

SUN/MOON

FISH/HUNT

CONTRAST

ALARM/MSG

From any

NAV screen MENU

Select

SETUP ENTER

FIG.

Selecting Initialize

By initializing your receiver, you establish the initial position

for the receiver. This will enable the receiver to search the

sky for available satellites. You will need to reinitialize if you

have traveled more than 300 miles while the receiver is

turned off. To initialize:

Follow the steps requested to initialize, as done when the

receiver was initialized the first time (see Getting Started).

Disabling NAV Screens

You may find that you do not use one, or more, of the nine

NAV screens provided in the receiver. You have the option

to disable NAV screens, except for the STATUS and

POSITION screens.

The default for

the TIME screen

is off.

Select

SETUP

ENTER

Select

INITIALIZE

ENTER

FIG.

Figure E. Refer to

this screen

anytime you want

to access Setup.

SETUP

INITIALIZE

NAV SCREENS

COORD SYSTEM

MAP DATUM

ELEV MODE

TIME FORMAT

NAV UNITS

NORTH REF

LIGHT TIMER

BEEPER

PERSONALIZE

CLEAR MEMORY

NMEA

BAUD RATE

SIMULATE

Figure F. If you

need to initialize

again, make this

selection.

42 Magellan GPS 315/GPS 320

Select

SETUP ENTER

Select

NAV SCREENS

ENTER Select

on or off ENTER

FIG.

WPT NAMES

OFF

WPT NAMES

OFF

WPT NAMES

OFF

NAV 1

OFF

The COMPASS screen is displayed next with the same pop-

up menu. You will continue to be prompted for the other

NAV screens.

Selecting a Coordinate System

A coordinate system is provided for you. This option allows

you to select primary and secondary coordinates used for

entering and viewing position information. The most

common is LAT/LON.

Select

SETUP

ENTER

Select

COORD SYSTEM

ENTER

Select

system

ENTER

FIG.

Select

format

ENTER

FIG.

WPT NAMES

OFF

WPT NAMES

OFF

WPT NAMES

OFF

COORD SYS

PRIMARY

SECONDARY

If a format is required for the coordinate system you have

chosen, a pop-up menu will be displayed.

WPT NAMES

OFF

WPT NAMESWPT NAMESLAT/LON

DEG/MIN.MM

DEG/MIN.MMM

DEG/MIN/SEC

The default primary coordinate system will be Lat/Lon in

Degrees/Minutes and the default secondary coordinate

system will be UTM.

You will want the receiver to use position

coordinates in the same map datum that is used

by your maps.

Figure A. You can

turn NAV screens

on or off.

Figure B. You can

choose from LAT/

LON, UTM, TD,

OSGB, Irish,

Swiss, Swedish,

Finnish, German,

French, MGRS and

User Grid.

Figure C. You

can choose from

DEG/

MIN.MM,

DEGMIN.MMM

or DEG/MIN/

SEC. The

screen will be

different for

other coordinate

systems.

Magellan GPS 315/GPS 320 43

Selecting Map Datum

You can change the datum the receiver uses to compute

position coordinates. You will want your receiver’s datum to

match the datum on the map or chart you are using. Use

the map “legend” to determine the datum required for the

map or chart. If you are not using a map or chart or are

unsure which datum to use, select WGS84.

WPT NAMES

OFF

WPT NAMES

OFF

WPT NAMES

OFF

MAP DATUM

PRIMARY

SECONDARY

MENU Select

SETUP ENTER Select

MAP DATUM

ENTER Select primary

or secondary ENTER

FIG.

Select

datum ENTER

Default setting: WGS84

Selecting Elevation Mode

You have the option of changing your elevation mode to 2D

(2-Dimensional) or 3D (3-Dimensional). You may find 2D

useful if you know the elevation of your position and the

elevation will not change. Your receiver will compute

elevation in 3D mode but will not in 2D mode.

MENU Select

SETUP ENTER

Select

ELEV MODE

ENTER Select

3D or 2D ENTER

FIG

WPT NAMES

OFF

WPT NAMES

OFF

WPT NAMES

OFF

ELEV MODE

If you select 3D, the receiver will return to SETUP. If 2D is

selected, the receiver will ask for elevation.

WPT NAMES

OFF

WPT NAMES

OFF

WPT NAMES

OFF

ELEVATION

0000FT

Input

elevation

ENTER

FIG

Default setting: 3D

Figure D. Be sure

the map datum

matches the datum

required for the

maps or charts you

are using.

Figure F. If you

are at sea level, you

can use 2D

because your

elevation is zero.

Figure E. You can

choose from 2D

or 3D.

44 Magellan GPS 315/GPS 320

Selecting Time Format

You have the option of changing the format for the time.

MENU Select

SETUP ENTER Select

TIME FORMAT

ENTER Select

value ENTER

FIG

Input

time ENTER

TIME FORMAT

LOCAL 24HR

LOCAL AM/PM

UTC

SETUP

INITIALIZE

NAV SCREENS

COORD SYSTEM

MAP DATUM

ELEV MODE

TIME FORMAT

NAV UNITS

NORTH REF

LIGHT TIMER

BEEPER

PERSONALIZE

CLEAR MEMORY

NMEA

BAUD RATE

SIMULATE

If UTC is selected, the receiver will return to SETUP. If

LOCAL 24HR or LOCAL AM/PM are selected, a pop-up

menu will be displayed prompting you to input the correct

time.

Default: Local AM/PM

Selecting NAV Units

You can choose the units of measure used by your receiver.

NAV UNITS

MILES/MPH

NM/KNOTS

KM/KPH

Select

SETUP

ENTER

Select

NAV UNITS

ENTER

Select

units

ENTER

FIG

Default setting is MILES/MPH for land use in the United

States and KM/KPH for land use outside the United States.

Default setting is NM/KNOTS for marine use.

Selecting North Reference

The receiver uses magnetic north as a default reference for

all navigation computation. You can change this to true

north (good, if you are using a map) or back to magnetic

north (default, good to use if you are using a compass), or

mils true or mils mag under SETUP.

MENU Select

SETUP ENTER

Select

NORTH REF ENTER

Select

reference ENTER

FIG.

Default setting: MAGNETIC

Figure A. You can

access Time Format

from this menu.

Figure B. You can

choose from

LOCAL 24HR,

LOCAL AM/PM or

UTC.

Figure C. You can

choose from

MILES/MPH,

NM/KNOTS and

KM/KPH.

Figure D. You can

choose from

TRUE, MAG-

NETIC, MILS

TRUE or MILS

MAG.

NORTH REF

° TRUE

° MAGNETIC

MILS TRUE

MILS MAG

Magellan GPS 315/GPS 320 45

Selecting Light Timer

The light timer is a power saving function that automati-

cally turns the light off.

WPT NAMES

OFF

WPT NAMES

OFF

WPT NAMES

OFF

LIGHT TIMER

ALWAYS ON

15 SECONDS

30 SECONDS

1 MINUTE

2 MINUTES

4 MINUTES

MENU Select

SETUP ENTER ENTER

Select

time ENTER

FIG.

Select

LIGHT TIMER

Selecting the Beeper

You can select the options for when the beeper will sound.

MENU Select

SETUP ENTER

Select

BEEPER ENTER

Select

beeper ENTER

FIG.

BEEPER

OFF

KEYS ONLY

ALARM ONLY

KEYS /ALARM

Default setting: KEYS/ALARM

Selecting Personalize

With the personalize function, you have the option of

inputting your name into the receiver.

Select

SETUP

ENTER

Select

PERSONALIZE

ENTER

Select

on or off

ENTER

If ON is selected:

Figure E. Once the

timer turns the light

off, it can be turned

on with the next

key press. Suppose

you select the timer

setting for 30

seconds. Press the

light key to turn the

light on, it remains

lit. With the next

key press, the light

turns on again for

30 seconds. This

continues until you

turn the light or the

receiver off.

Enter

name

ENTER

Figure F. You can

choose from

OFF, KEYS

ONLY, ALARM

ONLY and

KEYS/ALARM.

Default setting: ALWAYS ON

46 Magellan GPS 315/GPS 320

Selecting Clear Memory

The Clear Memory function allows you to delete track

history, waypoints and routes as well as reset the settings to

the factory defaults. There is also an option to delete

everything in the receiver’s memory. Use caution when

accessing the Clear Memory function. Once you have

deleted, you cannot undo the process or retrieve this

deleted data.

If you clear all memory, the receiver will clear

everything and power itself off.

WPT NAMES

OFF

WPT NAMESWPT NAMESCLEAR MENU

TRACK HIST

WPT/ROUTES

BACK WPTS

ROUTES

RESET DFALT

ALL

Select

SETUP

ENTER

Select

CLEAR MEMORY

ENTER

Select item

to clear

ENTER

FIG

Selecting NMEA

Your receiver can be set to output GPS data to interface

with your personal computer.

MENU Select

SETUP ENTER Select

NMEA ENTER

Select

NMEA ENTER

FIG.

WPT NAMES

OFF

WPT NAMESWPT NAMESNMEA

OFF

V1.5 APA

V1.5 XTE

V2.1 GSA

Figure A. You can

choose from

TRACK HIST,

WPT/ROUTES,

BACK WPTS,

ROUTES,

RESET DFALT

and ALL.

Figure B. You can

choose from OFF,

V1.5 APA, V1.5

XTE and V2.1

GSA.

Default setting: OFF

Magellan GPS 315/GPS 320 47

WPT NAMES

OFF

WPT NAMES

BAUD RATE

1200 BAUD

4800 BAUD

9600 BAUD

19200 BAUD

MENU Select

SETUP ENTER Select

BAUD RATE ENTER

Select

baud rate ENTER

FIG

Figure C. You can

choose from 1200,

4800, 9600 and

19200 baud.

Selecting Baud Rate

Connection to external devices requires that the baud rate of

the data being sent or received by the receiver be matched to

the baud rate of the external device.

Default: 4800 baud

48 Magellan GPS 315/GPS 320

Connecting to DGPS

To use the PC interface cable to interface the GPS receiver with the DBR-2 or

DBR-3, you must use a null modem (Radio Shack P/N: 26-264A) and a gender

changer (Radio Shack P/N: 26-280A) to connect the GPS receiver properly. This

is due to the pinout being the opposite of the DB9 connector configuration for a

PC connection.

For the DBR (differential beacon receiver) that has a DB9 connector on the

housing, the pinout is:

Pin 2: Data out to GPS

Pin 3: Data in

Pin 5: Sig. GND

Magellan GPS 315/GPS 320 49

Troubleshooting

Receiver will not turn on:

1. Check to see if batteries are installed correctly.

2. Replace with two new AA alkaline or lithium batteries.

Takes more than 10 minutes to get a position fix:

1. If there are any obstacles nearby or overhead, move to a new

location.

2. Make sure that the antenna is pointing up, has a clear view of the

sky and is a reasonable distance away from your body.

3. Check Satellite Status to see where the satellites are and if the

receiver is acquiring data.

4. If the receiver still does not get a position fix within 10 minutes,

you may wish to repeat the initialization procedure.

Elevation jumps up and down:

1. Errors induced by the Department of Defense called Selective

Availability (SA) can cause the elevation values to fluctuate.

Battery life seems shorter than it should be:

1. Make sure that you are using two AA alkaline or lithium

batteries.

2. Shorter life span of the batteries can be due to excessive use of

the backlight. Turn the backlight off when not needed.

Position coordinates on your receiver do not match the location on

your map.

1. Make sure that your receiver is set up to use the same datum as

your map. The map datum is generally shown in the map

legend. See Map Datum under Reference for instructions on

selecting the map datum in your receiver.

2. Check your LAT/LON format. Make sure that the format

selected in COORDINATE SYSTEM (DEG/MIN/SEC or

DEG/MIN.MM) is in the same format as the map you are

using.

50 Magellan GPS 315/GPS 320

Commonly Asked Questions

Does the receiver adjust itself for daylight savings time?

No. You need to reset the time for changes in your area (see

Selecting Time Format).

Will my receiver function correctly in the year 2000?

Yes. Even though the last two digits of the year are displayed, the

full year designator is stored in memory.

Why won’t the receiver accept the coordinates I am inputting?

The most common cause is that you are trying to enter coordi-

nates that are in degrees/minutes while your receiver is set to

degrees/minutes/seconds. Because the last two digits in degrees/

minutes are in hundredths (00-99) and degrees/minutes/seconds

can be no higher than 59 (00-59), inputting a number higher

than 59 while in deg/min/sec results in an error and the receiver

does not accept the entry.

Can I use NiCad batteries in my receiver?

Yes. However, the battery life of your receiver will be diminished

as well as the possibility of an incorrect reading on the battery

life gauge with the use of NiCad batteries.

You say my receiver should work up to 15 hours on two batteries, but

mine doesn’t last that long?

There can be two reasons. The first, and most common, reason

is that you have the display backlight on. The light increases the

drain on the batteries causing the decrease in battery life. The

second reason is that you are using NiCad batteries. As men-

tioned, while your receiver will operate on NiCad batteries, the

battery life is diminished.

Why is the time and date incorrect after I replace the batteries?

If the batteries are removed for 20 minutes or more, the receiver

will lose the time and date. The receiver will collect time and

date soon after tracking a satellite.

Magellan GPS 315/GPS 320 51

Contacting Magellan

If after using the troubleshooting section, you are still unable to solve

your operation problems, please call Magellan’s Technical Service at

(800) 707-9971.

Representatives are available Monday through Friday from 7 AM to

5 PM, PST. Faxes can be sent to Customer Service at (909) 394-7070.

If necessary, you can also return your receiver to Magellan for repair

(please call for assistance first). If possible, please notify us before

shipping the receiver by Parcel Post or UPS and include a description of

the problem, your name, address and a copy of your sales receipt. If

your return ship address is different, please indicate.

Please return the enclosed registration card in order to have your

information on file.

With all correspondence, please state the model of your receiver and if

calling, please have your receiver with you.

Packages should be sent to:

Magellan Corporation

960 Overland Court

San Dimas, CA 91773

ATTN: Warranty/Repair

Shipping Your Receiver

When shipping your receiver by air, loosen the battery door screw by

turning the screw by 1/2 turn. This will prevent damage to the

receiver’s water seal during shipping due to pressure differences.

52 Magellan GPS 315/GPS 320

NMEA DATA MESSAGES

Your GPS receiver can be set to output GPS data in the NMEA 0183 version

1.5 or version 2.1 format to interface with other marine devices or equipment.

NMEA DATA MESSAGES. NMEA data is output at 4800 baud, 8, N, 1,

checksum off. These settings are acceptable to most equipment and software

applications. The baud rate can also be set to 1200, 9600 or 19200.

There are several NMEA output message sets, each with a slightly different

application. Check documentation for your external equipment to choose

the appropriate message set.

SET OUTPUT/USAGE

V1.5.APA BWC, APA, GLL, VTG

Remote displays, version 1.5 marine autopilots

V1.5 XTE XTE, BWC, GLL, VTG

Version 1.5 Marine autopilots

V2.1 GSA GSA, GSV, GLL, GGA, RMB, RMC and APB. Vers. 2.1

NMEA is recommended for navigation data, satellite

data and autopilots.

NMEA Message Definitions

APA Autopilot cross track error, direction to steer, status of GPS, route status,

destination waypoint name, and bearing from origin to destination

(old format).

APB Revised autopilot message contains all of the above plus: heading to

steer toward destination, bearing from the present position to the

destination (magnetic or true).

BWC Range and bearing to a waypoint.

GGA GPS position, time, fix quality, number of satellites used, HDOP

(Horizontal Dilution of Precision), differential reference information,

and age.

GLL GPS-derived latitude, longitude, and time of fix.

GSA GPS receiver operating mode, satellites used in the navigation solution

reported by the $--GGA sentence and DOP (Dilution of Precision)

values.

GSV Number of satellites in view, satellite numbers, elevation, azimuth, and

SNR value.

RMB Data status, cross track error, direction to steer, origin, destination

landmark, landmark location, bearing to destination, and velocity

toward the destination.

RMC Time, latitude, longitude, speed, heading, and date.

VTG Track (magnetic and true) and groundspeed (knots and KPH).

Magellan GPS 315/GPS 320 53

NMEA OUTPUT DATA FORMAT - VERSION 1.5

APA Autopilot Format A

1 2 3 4 5 6 7 8 9 10

APA,A,A,X.XX,L,N,A,A,XXX.,M,CCC

1 OR’ed Blink and SNR (A = valid, V = invalid)

2 Cycle Lock (A = valid, V = invalid)

3-5 Cross Track, Sense (L = steer left, R = steer Right), N.Mi.

Units

6-7 Arrival Circle, Arrival Perpendicular (crossing of the line

which is perpendicular to the course line and which passes

through the destination waypoint.

8-9 Bearing dest. WPT. from origin WPT., Magnetic

10 Dest WPT. identifier

BWC To Selected Waypoint, Great Circle

1 2 3 4 5 6 7 8 9 10 1112

BWC,XXXXXX,XXXX.XX,N,XXXXX.XX,W,XXX.,T,XXX.,M,XXX.X,N,CCCC

1 UTC of Bearing

2-3 Lat, N or S of waypoint

4-5 Long, E or W of waypoint

6-7 Bearing, True

8-9 Bearing, Magnetic

10-11Distance, naut. miles

12 Waypoint identifier

GLL Geographic Position — Latitude/Longitude

1 2 3 4 5 6

GLL,1111.11,a,yyyyy.yy,a,hhmmss.ss,A*hh

1-2 Latitude, N/S

2-3 Longitude, E/W

4 UTC of position

6 Status A = Data valid

54 Magellan GPS 315/GPS 320

VTG Actual Track and Ground Speed (SPD)

1 2 3 4 5 6 7 8

VTG,XXX.,T,XXX.,M,XX.X,N,XX.X,K

1-2 Track degrees, True

3-4 Track degrees, Magnetic

5-6 Speed, knots

7-8 Speed, kilometers/hour

XTE Cross Track Error

1 2 3 4 5

XTE, A,A,X.XX, L,N

1 Or’ed value Blink and SNR (A=Valid, V=Invalid)

2 Cycle Lock, (A=Valid, V=Invalid)

3 Cross Track Error

4 Steer Left of Right (L = Left, R = Right)

5 Units (N.Mi.)

NMEA 0183 VERSION 2.1

APB Autopilot Sentence “B”

1 2 3 4 5 6 7 8 9 10 11 12 13 14

APB,A,A,x.x,a,N,A,A,x.x,a,c—c,x.x,a,x.x,a*hh

1 Status:

A = Data valid

V = Loran-C Blink or SNR warning

V = general warning flag for other

navigation systems when a

reliable fix is not available.

2 Status: V = Loran-C cycle lock warning flag

A = OK or not used

3 Magnitude of XTE

4 Direction to steer (L, R)

5 XTE units, nautical miles

6 Status: A = arrival circle entered

7 Status: A = perpendicular passed at waypoint

8-9 Bearing origin to destination, M/T

10 Destination waypoint ID

11-12 Bearing, present position to destination, Magnetic or True

13-14 Heading to steer to destination waypoint, Magnetic or True

Magellan GPS 315/GPS 320 55

GGA Global Positioning System Fix Data

1 2 3 4 5 6 7 8 9 10 11

GGA,hhmmss.ss,1111.11,a,yyyyy.yy,a,x,xx,x.x,x.x,M,x.x,

12 13 14

M,x.x,xxxx*hh

1 UTC of Position

2-3 Latitude - N/S

4-5 Longitude - E/W

6 GPS Quality Indicator

0 = fix not available or invalid

1 = GPS SPS Mode, Fix valid

2 = Differential GPS, SPS Mode, fix valid

3 = GPS PPS Mode, fix valid

7 Number of satellites in use (00-12, may be different

from the number in view)

8 Horizontal dilution of precision

9 Antenna altitude above/below mean sea level

10 Units of antenna altitude, meters

11 Geoidal separation - difference between the WGS-84

earth ellipsoid and mean sea level (geoid), “-” =

mean sea level below ellipsoid

12 Units of geoidal separation, meters.

13 Age of Differential GPS data - Time in seconds since

last SC104 Type 1 or 9 update, null field when DGPS

is not used

14 Differential reference station ID, 0000-1023

GLL Geographic Position — Latitude/Longitude

1 2 3 4 5 6

GLL,1111.11,a,yyyyy.yy,a,hhmmss.ss,A*hh

1-2 Latitude, N/S

2-3 Longitude, E/W

4 UTC of position

6 Status A = Data valid

V = Data not valid

56 Magellan GPS 315/GPS 320

GSA GPS DOP and Active Satellites

GPS receiver operating mode, satelites used in the navigation

solution reported by the $--GGA sentence, and DOP values.

1 2 3 4 5 6 7

GSA,a,x,xx,xx,xx,xx,xx,xx,xx,xx,xx,xx,xx,xx,x.x,x.x,x.x*hh<CR><LF>,

1 Mode: M=Manual, forced to operate in 2D or 3D mode,

A=Automatic, allowed to automatically switch 2D/3D

2 Mode: 1= Fix not available, 2=2D, 3=3D

3-4 PRN numbers of satellites used in solution (null for unused

fields)

5 PDOP

6 HDOP

7 VDOP

GSV GPS Satellites in View

Number of satellites (SV) in view, PRN numbers, elevation,

azimuth and SNR value. Four satellites maximum per transmis-

sion, additional satellite data sent in second or their

message. Total number of messages being transmitted and the

number of messages being transmitted is indicated in the

first two fields.

1 2 3 4 5 6 7 8 9 10 11

GSV,x,x,xx,xx,xx,xxx,xx.........,xx,xx,xxx,xx*hh<CR><LF>

1 Total number of messages, 1 to 9

2 Message number, 1 to 9

3 Total numer of satellites in view

4 Satellite PRN number

5 Elevation, degrees, 90° maximum

6 Azimuth, degrees True, 000 to 359

7 SNR (C/No) 00-99 dB, null when not tracking

8-9 2nd-3rd SV

10-11 4th SV

Notes: 1) Satellite information may require the transmission

of multiple messages. The first field specifies the total

number of messages, minimum value 1. The second field identi-

fies the order of this message (message number), minimum

value 1.

2) A variable number of “PRN-Elevation-Azimuth-SNR” sets are

allowed up to a maximum of four sets per message. Null fields

are not required for unused sets when less than four sets are

transmitted.

Magellan GPS 315/GPS 320 57

RMB Generic Navigation Information (immediately follows RMC)

1 2 3 4 5 6 7 8 9 10 11 12 13 14

RMB,A,X.XX,a,c--c,c--c,1111.11,a,yyyyy.yy,a,x.x,x.x,x.x,A *hh

1 Data Status (A = valid, V = invalid)

2-3 XTE, naut. miles and direction to steer (L or R) [If XTE

exceeds 9.99 NM, display 9.99 in field 2.]

4 Origin waypoint ID

5 Destination waypoint ID

6-7 Destination Waypoint Latitude (N or S)

8-9 Destination Waypoint Longitude (E or W)

10 Range naut. miles, present fix to destination waypoint

Great Circle. [If range exceeds 999.9 nm, display 999.9.]

11 Bearing, True, Great Circle, Present fix to dest. waypoint

12 Closing velocity to destination, knots

13 Arrival (OR’ed arrival circle and crossing of line which is

perpendicular to the course line and which passes through

the destination waypoint.)

14 CHECKSUM (Mandatory in this sentence.)

RMC Transit Specific (to be followed by RMB)

1 2 3 4 5 6 7 8 9 10 11

RMC,hhmmss.ss,A,1111.11,a,yyyyy.yy,a,x.x,x.x,xxxxxx,x.x,aa*hh

1 Time, UTC of position fix

2 Status (A = valid, V = Navigation receiver warning)

3-4 Latitude at UTC time, N or S

5-6 Longitude at UTC time, E or W

7 Speed over ground, knots

8 Course over ground, degrees

9 Date (DDMMYY)

10 Magnetic variation, degrees (E or W)

11 Mode Indicator

The formats listed are NMEA formats and Magellan receivers may not

output all of the information listed for a particular format.

A complete copy of the NMEA specifications can be obtained from:

NMEA, PO Box 3435 New Bern, NC 28564-3435

58 Magellan GPS 315/GPS 320

Available Datums

IRELA Ireland 1965

KAUAI Kauai

KERTA Kertau 1948

KKJ KKJ (Finland)

LIBER Liberia 1964

LUZON Luzon

MASSA Massawa

MAUI Maui

MERCH Merchich

MINNA Minna

MONTJ

NAHRW Nahrwan, Saudi Arabia

OAHU Oahu

OEGYP Old Egyption

OHAWA Old Hawaiian

OMAN Oman

PITCA Pitcairn Astro 1967

QATAR Qatar National

QORNO Qornoq

RT90 RT90 (Sweden)

SAM56 Provisional So. Am.

1956

SAM69 South American 1969

SCHWA Schwarzeck

SICIL Sicily

SIERR

SWISS

TANAN Tananarive Observatory

1925

THAI Indian (Thailand,

Vietnam)

TIMBA Timbalai

TOKYO Tokyo

USER DEFINED

VOIRO

WGS72 World Geodetic System

1972

YACAR Yacare

ZANDE Zanderij

Datum Full Name Datum Full Name

WGS84 World Geodetic System

NAD27 North America 1927

NAD83 North American 1983

ADIND Adinda

ALASK Alaska

ARC50 Arc 1950

ARC60 Arc 1960

ASTRO Camp Area Astro

AUS66 Australian Geodetic 1966

AUS84 Australian Geodetic 1984

BOGOT Bogota Observatory

BUKIT Bukit Rimpah

CAMPO Campo Inchauspe

CANAD Canada

CAPE Cape

CARTH Carthage

CENAM Central America

CHATH Chatham 1971

CHUAA Chau Astro

CORRE Corrego Alegre

CYPRU Cyprus

DJAKA Djakarta (Batavia)

EGYPT Egypt

EUROP European 1950 (All of Europe)

EUR50 European 1950 (W. Europe)

EUR79 European 1979

GANDA Gandajika Base

GEO49 Geodetic Datum 1949

GHANA

GRB36 Ordinance Survey of GB, 1936

GUAM Guam

GUNSG G. Segara

GUNSR

HAWAI Hawaii

HERAT Herat North

HJORS Hjorsey 1955

HUTZU Hu-tzu-shan

INDIA Indian (India, Nepal)

IRAN Iran

Magellan GPS 315/GPS 320 59

Specifications

CHARACTERISTICS

Performance

Receiver: 12 parallel-channel technology, tracks up to

12 satellites to compute and update information

with quadrifilar antenna

Acquisition Times (under optimal conditions):

Warm Approximately 15 seconds

Cold Approximately 1 minute

Update Rate 1 second continuous

Accuracy:

Position 49 feet (15 meters) RMS (with Selective Availability

turned off)

Velocity 0.1 knot RMS steady state (with Selective Availability

turned off)

Limits:

Speed 951 mph

Altitude 17,500 meters

Physical:

Size 6.2” x 2.0” x 1.3” [h] x [w] x [d]

15.75 cm x 5.08 cm x 3.30 cm

Weight 7 ounces (198.45 grams) with 2 AA batteries installed

Display 2.2” x 1.33” [h] x [w]

5.59 cm x 3.38 cm

high contrast LCD with EL backlit display

Housing Waterproof (Battery compartment is splashproof)

Temp. Range:

Operating 14˚F to 140˚F to (-10˚C to 60˚C)

Storage -40˚F to 167˚F (-40˚C to 75˚C)

Power:

Source 2 AA alkaline or lithium batteries or 9-16 VDC with

power cable

Battery Life Up to 15 hours

60 Magellan GPS 315/GPS 320

Attaching the Wrist Lanyard

The lanyard for your GPS receiver can be easily attached by inserting

the small loop of the lanyard through the ring provided on the battery

door locking screw and then looping the other end of the lanyard strap

through the small loop.

Magellan GPS 315/GPS 320 61

Accessories

Accessories for your receiver are available from your Magellan dealer or

you can order directly from Magellan using the order card supplied with

your receiver or call Magellan at (800) 669-4477 (press 3 twice to place

an order).

Swivel Mounting Bracket: Mounts the receiver on a surface, allowing

for hands-free operation.

Vehicle Mounting Bracket: Mounts the receiver on the windshield,

allowing for hands-free operation.

Nylon or Leather Carrying Case: The carrying case protects your

receiver from the elements and allows you to carry your receiver on your

belt.

Power/Data Cable (Bare Wires): Allows you to connect your receiver

to external power and data.

PC Interface Cable with Cigarette Lighter Adapter: Connects your

receiver to your PC for data transfer and to a cigarette lighter for

external power.

External Power Cable with Cigarette Lighter Adapter: Allows you to

connect the receiver to a cigarette lighter for external power.

DataSend™ CD-ROM: The software contains a database of points of

interest that can be sent to your receiver. You can select from a number

of geographical locations and download them into your receiver.

DataTrack Waypoint Management Software: Includes DataTrack 3.5

floppy disc GPS data management software.

Instructional Video: A video in VHS format that provides you with

instructions on how to use and operate your receiver.

Differential Beacon Receiver (DBR-3): Connects to your receiver to

receive differential corrections (DGPS) for 5-10 meter accuracy.

62 Magellan GPS 315/GPS 320

Glossary

Active Leg The segment of a route currently being traveled.

Altitude The current elevation above sea level.

BRG Bearing. The compass direction from your position

to a destination, measured to the nearest degree.

Buoy A navigation aid (usually found in marine charts) that

is floating in water. The position can vary due

to the magnitude and direction of the current.

COG Course Over Ground. The direction the receiver is

moving. COG can be reported in true or magnetic

north values.

Coordinates A unique numeric or alphanumeric description of the

position.

CTS Course to Steer. The direction you should be traveling

in order to return to the course while proceeding

towards the destination. It is a “compromise” course

bearing that projects from your current position to a

point on the courseline mid-way between a point

perpendicular to your position and the current leg

destination waypoint.

Datum Refers to the theoretical mathematical model of the

earth’s sea level surface. Map makers may use a

different model to chart their maps, so position

coordinates will differ from one datum to another. The

datum for the map you are using can be found in the

legend of the map. If you are unsure of which datum

to use, use WGS84.

Default The value or setting automatically chosen by the unit

unless otherwise directed. Can be changed in Setup.

DST Distance. Distance from position to destination.

Magellan GPS 315/GPS 320 63

Ephemeris The position and velocity of the satellites in the

sky. The receiver uses the ephemeris to calculate the

precise distance from the GPS receiver to the satellite.

ETA Estimated Time of Arrival. The estimated time of day

the leg’s destination waypoint will be reached.

ETE Estimated Time Enroute. The estimated time

remaining to reach the next waypoint in a route.

Fixed Navaid A navigation aid (usually found in marine charts) that

has a fixed position and can be found on land or water.

An example is a T.V. tower on land or a Greenday mark

in water.

HDG Heading. The direction you are facing, defined as an

angle from North.

Latitude The angular distance north or south of the equator

measured by lines encircling the earth parallel to the

equator from 0˚ to 90˚.

LAT/LON Coordinate system using latitude and longitude

coordinates to define a position on the earth.

Leg (Route) A segment of a route that has a starting (FROM)

waypoint and a destination (TO) waypoint. A route

may consist of 1 or more legs. A route that is from

waypoint A to waypoint B to waypoint C to waypoint

D has three legs with the first being from waypoint A to

waypoint B.

Leg 1

Leg 2

Leg 3

64 Magellan GPS 315/GPS 320

LMK Landmark. A location saved in the unit’s

memory which is obtained by entering data,

editing data, calculating data or saving a

current position. Used to create routes. Same

as a waypoint.

Longitude The angular distance east or west of the prime

meridian (Greenwich Meridian) as measured

by lines perpendicular to the parallels and

converging at the poles from 0˚to 180˚.

Magnetic North The direction relative to a magnetic compass

NMEA National Marine Electronics Association. A

professional organization that defines and

maintains the standard serial format used by

marine electronic navigation equipment and

computer interfaces.

OSGB A coordinate system describing only Great

Britain, similar to UTMs. Used with GRB36

datum.

Position fix Position coordinates as computed by the GPS

receiver.

SOG Speed Over Ground. The speed at which the

receiver is moving.

TRN Turn. Degrees or direction to turn.

True North The direction to North Pole from an

observer’s position. The north direction on

any geographical meridian.

TTG Time To Go. The measurement of how long

it will take you to arrive at your destination.

TTG is based on how fast you are moving

towards the destination and the distance

remaining.

Magellan GPS 315/GPS 320 65

UTC Universal Time Coordinated. Formerly

referred to as Greenwich Mean Time (GMT).

UTM Universal Transverse Mercator metric grid

system used on most large and intermediate

scale land topographic charts and maps.

VMG Velocity Made Good. The component of the

velocity that is in the direction of the destina-

tion.

Waypoint WPT. A location saved in the receiver’s

memory which is obtained by entering data,

editing data, calculating data or saving a

current position. Used to create routes.

XTE Cross Track Error. The distance, left or right,

of the desired courseline. The courseline is a

straight line from your present position to

your destination.

66 Magellan GPS 315/ GPS 320

Index

Accessories 60

Accuracy 3

Alarms 37

accessing 37; anchor 37;

arrival 38; clearing 40;

defaults 40; proximity 39;

selecting 37; viewing 40;

XTE 38

Anchor alarm 37

Antenna reception 4;

troubleshooting 49

Arrival alarm 38

Automatic Averaging 9

Auxiliary Functions 35

Backtrack creating 29

Batteries, installing 3;

life 8; troubleshooting 49, 50;

NiCad 50

Baud Rate 47

Bearing 10, 11, 12, 13, 16, 17,

Beeper 45

Cities category (based on

population) 1, 22, 23, 24

Clear Memory 46

Connecting to DGPS 48

Compass screen 11; customize

Coordinate System

selecting 42; viewing

secondary 9

Commonly Asked Questions 50

Contrast 36

Cross Track Error (XTE) 5, 10,

12, 16; alarm 38

Course over Ground (COG)

9, 10, 11, 12, 16, 17, 18;

Indicator 11

Course Projection 15

Cross Track Error alarm 38

Customer Service 51

Customize NAV Screens (see

Disabling NAV Screens)

Customizing 41

DataSend™ 23, 27

Date see Time and Date

Datums see Map Datums

Demo Mode see Simulate

DGPS 9

DGPS conection 48

Differences GPS 315/320 1

Disabling NAV Screens 41

Elapsed time 21

Elevation 9; 43

Entering Information 7

Estimated Position Error 9

Fish/Hunt 35

Fixed navaid 1, 62

Fixed Position 6

Magellan GPS 315/ GPS 320 67

Glossary 61

GOTO clearing 28; creating 28,

in the plotter screen 28

GPS fix alarm 40

Hide Data/Show Data 16

Initializing 4, 41

Keys 2

Landmark (LMK) 5

Lanyard strap instructions 60

LAT/LON 42;

troubleshooting 49

Light Timer 45

Magnetic North 44

Man Over Board (MOB)

clearing 29; creating 29

Map Datums available datums

58; selecting 43

Map ‘N Track Route 34

Memory clear 46

Message accessing 37;

viewing 37

Modes of operation

see Simulate mode; see 2D, 3D

Multi-Leg route, creating 30

Navigation screens 7; Compass

11; disabling 41; Nav 1 10;

Nav 2 12; Plot 13; Position 9;

Road 17; Speed 18; Status 8;

Time 20

Nav Units 44

NiCad batteries 50

NMEA 46; Data Messages

52-57

NorthFinder™ 11

North Reference 44

Odometer 18; resetting 18

PAN-N-SCAN 14

Personalize 45

Plot Rings 15

Plot Scales 16

Plot screen 13

Plotter 15

Population of cities 24

Position fix 6; troubleshooting

Position screen 9

Power On 4

Primary Usage 5

Projecting a Waypoint 25

Proximity alarm 39

Receiver size 59

Reception 4

Road screen 17; customize 17

68 Magellan GPS 315/ GPS 320

Route 28; activating/deactivat

ing a route 32; adding a

waypoint at the end of a route

32; changing a waypoint in a

route 31; deleting a waypoint in

a route 32; deleting a route 33;

editing 31; inserting a leg into

a route 31; reversing 33; using

Plot View in a route 33;

viewing 31

Satellite positions 8

Satellite signals 8

Setup 41

Shipping 51

Simulate Mode 9, 36

Sorting 26

Specifications 59

Speed screen 18; setting average

Status screen 8

Sun/Moon 35

2D 8, 43

3D 8, 43

Terminology 5

Time and Date setting 4

Time Format 44

Time screen 20; elapsed time 21

Track History 13, 14; clear 14,

TrackRoute 34

Trip Odometer, resetting 19

True North 44

Troubleshooting 49

Waypoint creating 24;

creating a message 25;

deleting a user waypoint 26;

deleting a message

25; editing a message 25;

finding a non-user waypoint

26; functions 23; naming 6;

saving 6, 25; sorting a

waypoint 26

Weight, receiver 59

XTE see Cross Track Error

XTE alarm see Cross Track

Error alarm

Universal Time Coordinated

(UTC) 20, 44

630321 D

960 Overland Court, San Dimas, CA 91773

(909) 394-5000

Magellans Gps Receiver 320 Users Manual 315/320 Cover

Magellan GPS 320 MANUAL000013645

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