Garmin 198C User Manual

GPSMAP® 198C Sounder

chartplotting receiver

owner’s manual

© Copyright 2005 Garmin Ltd. or its subsidiaries
Garmin International, Inc.	Garmin (Europe) Ltd.	Garmin Corporation
1200 East 151st Street,	Unit 5, The Quadrangle,	No. 68, Jangshu 2nd Road, Shijr,
Olathe, Kansas 66062, U.S.A.	Abbey Park Industrial Estate,	Taipei County, Taiwan
Tel. [phone] or 800/800.1020	Romsey, SO51 9DL, U.K.	Tel. [phone]
Fax [phone]	Tel. [phone]	Fax [phone]
	Fax [phone]

All rights reserved. Except as expressly provided herein, no part of this manual may be reproduced, copied, transmitted, disseminated, downloaded or stored in any storage medium, for any purpose without the express prior written consent of Garmin. Garmin hereby grants permission to download a single copy of this manual onto a hard drive or other electronic storage medium to be viewed and to print one copy of this manual or of any revision hereto, provided that such electronic

or printed copy of this manual must contain the complete text of this copyright notice and provided further that any unauthorized commercial distribution of this manual or any revision hereto is strictly prohibited.

Information in this document is subject to change without notice. Garmin reserves the right to change or improve its products and to make changes in the content without obligation to notify any person or organization of such changes or improvements. Visit the Garmin Web site (www.garmin.com) for current updates and supplemental information concerning the use and operation of this and other Garmin products.

Garmin®, GPSMAP®,AutoLocate®, TracBack®, BlueChart®, and MapSource® are registered trademarks of Garmin Ltd. or its subsidiaries and may not be used without the express permission of Garmin.

July 2005

Part Number 190-00541-00 Rev. B

Printed in Taiwan

INTRODUCTION

Thank you for choosing the Garmin® GPSMAP® 198C Sounder. The GPSMAP 198C Sounder utilizes the proven performance of Garmin GPS and full-featured mapping to create an unsurpassed portable GPS receiver. Take a moment now to compare the contents of this package with the packing list on the outside of the box. If any pieces are missing, contact your Garmin dealer immediately.

Before you begin working with the GPSMAP 198C Sounder, review the installation instructions listed in theAppendix. If you have any question about installing your chartplotter, contact Garmin Product Support or a professional installer.

The GPSMAP 198C Sounder Quick Reference Guide contains helpful tips on using the unit and performing various navigation tasks. It’s a good idea to keep the Quick Reference Guide nearby whenever you are operating your new GPSMAP 198C Sounder.

INTRODUCTION > ABOUT THIS MANUAL

About This Manual

To get the most out of your new navigation system, take time to read this manual and learn the operating procedures for your unit in detail. This manual is organized into the following chapters.

The Introduction section contains the Table of Contents as well as GPSMAP 198C Sounder care information.

The Basic Operation section provides you with detailed information and step-by-step directions for features such as using the Find Menu, navigating a route, and using waypoints.

The Main Pages section provides detailed explanations about each page in the GPSMAP 198C Sounder and step-by-step directions on using the pages.

The Main Menu section provides detailed explanations about the Main Menu and how to use it to configure your unit.

The Appendix contains installation instructions, specifications, optional accessories, and maintenance information. You can also find warranty and FCC information in theAppendix. Read the

Safety Information to learn how to install and use your Garmin GPSMAP198C Sounder safely and responsibly.

An Index is provided at the end of the manual for reference.

GPSMAP198C Sounder Owner’s Manual

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INTRODUCTION > TABLE OF CONTENTS
Table of Contents
Introduction...........................................................................	i
About This Manual...................................................................	i
Warning...................................................................................	iv
Caution....................................................................................	iv
Basic Operation...................................................................	1
Initializing the Receiver ..........................................................	1
Simulator Mode .......................................................................	3
Adjusting the Backlight..........................................................	4
Interface Keys..........................................................................	5
Entering Data and Selecting Options....................................	6
Using the Map Pointer ............................................................	7
Creating and Using Waypoints ..............................................	8
Man OverBoard (MOB)..........................................................	10
Reviewing and Editing Waypoints.......................................	11
Navigating to a Destination..................................................	12
Routes....................................................................................	17
Find ........................................................................................	19
Additional Information..........................................................	21
DSC.........................................................................................	22
Main Pages.........................................................................	26
Map Page................................................................................	27
Compass Page.......................................................................	33
Numbers Page.......................................................................	34
Highway Page........................................................................	35
Active Route Page.................................................................	37

Main Menu..........................................................................	39
GPS Tab..................................................................................	39
Tide Tab..................................................................................	43
Trip Tab...................................................................................	46
Celes (Celestial) Tab .............................................................	47
Points Tab ..............................................................................	48
Routes Tab.............................................................................	53
Track Tab................................................................................	59
DSC Tab..................................................................................	61
Card Tab.................................................................................	62
Time Tab.................................................................................	62
Pages Tab...............................................................................	63
Map Tab..................................................................................	64
Hiway (Highway) Tab.............................................................	68
Temp (Temperature) Tab.......................................................	68
Sonar Tab...............................................................................	68
Systm (System) Tab..............................................................	69
Units Tab ...............................................................................	70
Comm (Communications) Tab .............................................	72
Alarm Tab...............................................................................	76
Using Sonar .......................................................................	78
Sonar Page.............................................................................	78
Sonar Tab Options ................................................................	85
Understanding Sonar............................................................	89

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INTRODUCTION > TABLE OF CONTENTS

Appendix............................................................................	92
Specifications........................................................................	92
Installing the GPSMAP 198C Sounder ................................	93
Mounting the GPSMAP 198C Sounder................................	94
Installing the Transducer......................................................	96
Care Information....................................................................	98
Connecting the Power/Data Cable.......................................	99
Interfacing............................................................................	100
Installing and Removing Data Cards.................................	101
Satellite Information............................................................	102
What is WAAS?....................................................................	103
What is Differential GPS (DGPS)? .....................................	103
What is a Maritime Mobile Service Identity (MMSI)?........	104
How ARE MMSI assignments obtained?...........................	104
Navigation Terms ................................................................	105
Messages.............................................................................	107
LORAN TD System..............................................................	109
Optional Accessories...........................................................	111
Software License Agreement.............................................	112
Product Registration...........................................................	112
Limited Warranty.................................................................	113
FCC Compliance..................................................................	114
Index.................................................................................	115

GPSMAP198C Sounder Owner’s Manual

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INTRODUCTION > WARNINGS AND CAUTIONS

Warning

Failure to avoid the following potentially hazardous situations could result in an accident or collision resulting in death or serious injury.

When navigating, carefully compare information displayed on the GPSMAP 198C Sounder to all available navigation sources, including information from visual sightings, and maps. For safety, always resolve any discrepancies or questions before continuing navigation.

Use the electronic chart in the GPSMAP 198C Sounder only to facilitate, not to replace, the use of authorized government charts. Official government charts and notices to mariners contain all information needed to navigate safely.

WARNING: This product, its packaging, and its components contain chemicals known to the State of California to cause cancer, birth defects, or reproductive harm. This Notice is being provided in accordance with California’s Proposition 65. If you have any questions or would like additional information, please refer to our Web site at http://www.garmin.com/prop65.

Caution

Failure to avoid the following potentially hazardous situations may result in injury or property damage.

Use the GPSMAP 198C Sounder only as a navigational aid. Do not attempt to use the GPSMAP 198C Sounder for any purpose requiring precise measurement of direction, distance, location, or topography.

The Global Positioning System (GPS) is operated by the United States

government, which is solely responsible for its accuracy and maintenance. The government’s system is subject to changes which could affect the accuracy and performance of all GPS equipment, including the GPSMAP 198C Sounder.Although the GPSMAP 198C Sounder is a precision navigation device, any navigation device can be misused or misinterpreted and, therefore, become unsafe.

Map Data Information: One of the goals of Garmin is to provide customers with the most complete and accurate cartography that is available to us at a reasonable cost. We use a combination of governmental and private data sources, which we identify in product literature and copyright messages displayed to the consumer. Virtually all data sources contain inaccurate or incomplete data to some extent. This is particularly true outside the United States, where complete and accurate digital data is either not available or prohibitively expensive.

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BASIC OPERATION

Initializing the Receiver

The first time you turn on the GPSMAP 198C Sounder, the receiver must be given an opportunity to collect satellite data and establish its present location. To ensure proper initialization, the GPSMAP 198C Sounder is shipped from the factory inAutoLocate Mode.

Before you initialize, make sure the GPSMAP 198C Sounder unit and antenna are correctly installed on your vessel according to the instructions in the “Appendix.” Install the antenna in a location with a clear and unobstructed view of the sky.

Afull-screen GPS Information Page is shown after you press ENTER to acknowledge the Warning Page. The page goes away after the unit gets a position fix or you press either ENTER or QUIT. The page can be disabled and enabled on the

Main Menu—Pages tab (see page 63).

BASIC OPERATION > INITIALIZING THE RECEIVER

To turn on the GPSMAP 198C Sounder:

1.Press and hold the POWER key until the power tone sounds, then release the POWER key. The Warning Page appears while the unit conducts a self-test.

2.When the self-test is complete, press ENTER to agree and acknowledge the warning.

The GPS Information Page appears as the receiver begins acquiring satellites.

To turn off the GPSMAP 198C Sounder:

1.Press and hold the POWER key for about two seconds, until the screen is blank.

2.When the screen is blank, release the POWER key.

GPSMAP198C Sounder Owner’s Manual

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BASIC OPERATION > INITIALIZING THE RECEIVER

To graphically initialize the GPSMAP 198C Sounder:

1.Press MENU twice for the Main Menu. Press up or down on the ROCKER until the GPS tab is highlighted, and then press MENU once.

2.Using the ROCKER, highlight Initialize Position, and press ENTER. The Initialize Position Page appears, prompting you to select your approximate location with the map pointer.

3.Use the ROCKER to move the map pointer to your approximate location within 200 miles. If you have difficulty identifying your location, press and release the IN key to see the next lower map range.

4.After you have determined your approximate location on the map, press ENTER.

NOTE: This does not calibrate the unit in any way, but rather helps to speed up the initial satellite acquisition. If the unit shows “Ready 2D or 3D” during this process, it is not necessary to initialize the unit.

The unit now begins searching for the appropriate satellites for your region and should acquire a fix within a few minutes. When viewing the GPS tab on the Main Menu, a signal strength bar for each satellite in view appears on the bottom of the page, with the appropriate satellite number under each bar.

•No signal strength bars—the receiver is looking for the satellites indicated.

•Hollow signal strength bars—the receiver has found the indicated satellite(s) and is collecting data.

•Solid signal strength bars—the receiver is ready to use.

When the receiver has collected information from at least three satellites, the top of the screen shows either “Ready 2D or 3D”, and the GPSMAP 198C Sounder is ready for use.

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Simulator Mode

Simulator Mode turns the GPS receiver off for use indoors or practice.Any of the functions discussed in the following pages can be performed in Simulator Mode. While in Simulator Mode, a “Running Simulator” message appears after 2 minutes of inactivity. Keep in mind that the GPSMAP 198C Sounder does not track satellites in Simulator Mode, and this mode should never be

used for actual navigation.All the waypoint and route planning completed in Simulator Mode is retained in memory for future use.

WARNING: Do not attempt to navigate using Simulator Mode. When the unit is set to Simulator Mode, the GPS receiver is turned off. Any satellite signal strength bars shown are only simulations and do not represent the strength of actual satellite signals.

BASIC OPERATION > SIMULATOR MODE

To place the GPSMAP 198C Sounder in

Simulator Mode:

1.Press MENU twice to show the Main Menu. Press up or down on the ROCKER until the GPS tab is highlighted, and then press MENU once.

2.Use the ROCKER to highlight Start Simulator, and press ENTER. Choose No to the retail demonstration, and press

ENTER.

3.Press ENTER to confirm the Running Simulator message that appears at the bottom of the screen. “Simulating” appears at the top of each of the Main Pages.

4.To turn off the Simulator Mode, press MENU, and select

Stop Simulator.

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BASIC OPERATION > ADJUSTING THE BACKLIGHT

The Set Position,

Track Control, Track

and Speed fields

only show while in

Simulator Mode.

To enter a simulated speed and heading from the Main Menu:

1.Press MENU twice to show the Main Menu.

2.Use the ROCKER to highlight the Systm tab, press right then down until the field below the word Speed is highlighted, then press ENTER.

3.Use the ROCKER to enter a speed, and press ENTER.

4.Use the ROCKER to highlight Track Control. Press ENTER, and select a heading.

5.Press ENTER to finish, and QUIT until you return to the Map Page.

To adjust the simulated speed and heading from the Compass or Highway Pages:

1.Press up on the ROCKER increase the speed in

10 knot/kph/mph increments. Press down on the ROCKER to decrease the speed in the same increments.

2.Press left and right on the ROCKER to steer the boat.

Adjusting the Backlight

The Sounder’s adjustable screen backlighting is controlled with the POWER key, and can be adjusted from any page.

To adjust the backlighting:

1.Press and release the POWER key. The adjustment slider window appears.

2.Press the POWER key again and the user-defined level of backlighting starts. You can adjust this level by pressing up or down on the ROCKER. If you press POWER one more time, the backlight is at the maximum setting.

3.Press ENTER or QUIT when finished.

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Interface Keys

POWER Key

•Press and hold to turn the unit on or off.

•Press and release to adjust backlighting.

PAGE Key

•Press to cycle through the main pages.

•Press to end an operation in progress and return to the main page.

QUIT Key

•Press and release to cancel data entry or exit a page.

ENTER/MARK Key

•Press and release to enter highlighted options and data or confirm on-screen messages.

•Press and hold at any time to mark your current location as a waypoint.

MOB Key

• Press and hold for MOB waypoint.

BASIC OPERATION > INTERFACE KEYS

IN/OUT Zoom Keys

•From the Map Page, press to zoom in or out.

•From any other page, press to scroll up or down a list.

ROCKER Key

•Move up, down, right or left to move through lists, highlight fields, on-screen

buttons and icons, enter data, or move the map pointer.

MENU Key

•Press and release to view options for a page.

•Press twice to view the Main Menu.

NAV Key

• Press and release at any time to view the Navigation Menu.

FIND Key

•Press to search for points such as user waypoints, cities, and services.

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BASIC OPERATION > ENTERING DATA AND SELECTING OPTIONS

Entering Data and Selecting Options

You can select and start options, and enter data to customize the GPSMAP 198C Sounder to fit your requirements. Use the ENTER key and the ROCKER to select options, enter names and numbers in data fields, and start your selections.

To select an optional feature:

1.With any page shown, press MENU to show the options menu. The options menu shows a list of optional features that are specific for that page. To select an option requires movement of the cursor. This is referred to as highlighting, selecting, or choosing an item.

2.Use the ROCKER to move the cursor (highlight) up and down a list or up, down, left, and right on menus.

3.After you have highlighted a selection, press ENTER to either start the feature or press MENU to show a sub-menu or list with more options. Repeat this process to select an option from the list, or press QUIT to return to the previous setting.

To select an on-screen button:

Some pages contain on-screen buttons. As shown below, the New Waypoint Page has three buttons: Map, Delete, and OK. To start, highlight the a button, and press ENTER.

On-Screen Buttons

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Using the Map Pointer

Working from the Map Page centers around the use of the pointer. Controlled by the ROCKER, the pointer is used to pan to map locations, mark and edit waypoints and routes, and review position data of on-screen map items and waypoints. When you move the pointer over a map item, a highlighted description of that item appears.

Current location

Map Zoom Range

BASIC OPERATION > USING THE MAP POINTER

To pan the map:

1.Use the IN/OUT keys to select a map zoom range.

2.Use the ROCKER to move the pointer. A data field appears at the top of the screen showing the bearing and distance from your boat to the pointer, along with the latitude/ longitude of the pointer.

3.Press QUIT to re-center your boat on the Map Page.

Distance

Bearing

Pointer Coordinates

Map Pointer

The Map Page actively scrolls or pans enabling you to explore areas around the world and create waypoints and routes. Pressing QUIT returns the map to your present location.

NOTE: When the pointer reaches the edge of the map, the unit can pause as it loads new map data.

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BASIC OPERATION > CREATING AND USING WAYPOINTS

Creating and Using Waypoints

The Garmin GPSMAP 198C Sounder stores up to 3,000 alphanumeric waypoints with a user-defined symbol, comments, and depth available for each waypoint. Waypoints can be created using two basic methods:

ENTER/MARK Key—marks your present location, and provides options to select a map position or map item from the Map

Page.Also, you can enter a new waypoint’s location coordinates manually.

Graphically—defines a new waypoint location from the Map Page using the ROCKER.

ENTER/MARK Key

The GPSMAP 198C Sounder’s ENTER/MARK key quickly captures your present location to create a new waypoint. The unit must have a valid position (2D or 3D) fix to mark your present location. You can also use this option to manually enter waypoint coordinates.

To mark your present position:

1.Press and hold ENTER/MARK until the New Waypoint window appears. A default three-digit name and symbol are created for the new waypoint.

2.To accept the waypoint with the default name and symbol, highlight OK, and press ENTER/MARK.

3.To enter a different name, highlight the name field, and press ENTER/MARK. Use the ROCKER to enter the new letter/numbers, and press ENTER/MARK when finished. You can use up to 10 characters for the name.

4.To select a different symbol, highlight the symbol field to the left of the name, and press ENTER/MARK. Use the ROCKER to highlight the new symbol, and press

ENTER/MARK.

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5.To enter optional comments or a depth, highlight the Comments or Depth field to the right of the location coordinates, and press ENTER/MARK, use the ROCKER to enter a value, and press ENTER/MARK.

6.To manually enter a set of coordinates, highlight the coordinates, and press ENTER/MARK, use the ROCKER to enter the new coordinates, and press ENTER/MARK when finished.

7.Use the ROCKER to highlight OK. When finished, press ENTER/MARK to save the waypoint into memory.

Creating Waypoints Graphically

You create waypoints graphically from the Map Page. To mark a map location or map item, select the location or item with the pointer, and press ENTER. When selecting a location or map item, a description of the point, its distance and bearing from your current location, and the latitude/longitude of the pointer is shown along the top of the map.

BASIC OPERATION > CREATING AND USING WAYPOINTS

To create a new waypoint graphically:

1.Use the ROCKER to move the pointer to a map location. If you want to create the new waypoint at an on-screen map item, highlight the map item on the screen.

2.Press and release ENTER/MARK to capture the pointer location. Do not hold the button down, doing so marks your present location, not the map location.

If you are not using a map item to create a waypoint, go to step 4.

3.Highlight Create Wpt or OK, and press ENTER/MARK.

4.To accept the waypoint with the default name and symbol, press ENTER/MARK.

5.To change the name, symbol, or add a comment or depth, highlight the appropriate field, and press ENTER/MARK. Make your changes, and press ENTER/MARK when finished.

6.Move the highlight back to OK, and press ENTER/MARK to confirm the changes.

GPSMAP198C Sounder Owner’s Manual

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BASIC OPERATION > MAN OVERBOARD (MOB)

Man OverBoard (MOB)

The GPSMAP 198C Sounder’s Man OverBoard function (MOB) simultaneously mark and set a course back to the marked location for quick response to emergency situations.

The MOB function allows you to quickly start navigation back to a location.

To start the MOB function:

1.Press MOB.

2.Press ENTER to begin navigating to the MOB location.

3.To stop navigation to the MOB location, press NAV, highlight Stop Navigation, and press ENTER.

When a MOB is active, a MOB waypoint with an international MOB symbol is created and the unit is on an active navigation to that point. Use any of the Navigation Pages to guide you back to the MOB point. The MOB waypoint is stored in the waypoint list and works like any other waypoint.

To stop navigation, highlight

Stop Navigation, and press ENTER.

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Reviewing and Editing Waypoints

Waypoints are reviewed, modified, renamed, moved, or deleted at any time through the Waypoint Edit Page. The Waypoint Edit Page is available for any stored waypoint. Select the waypoint on the map or from the waypoint lists in the Main Menu—Points tab.

Sub Tabs

Waypoint List

To access the Waypoint Edit Page:

1.Use the ROCKER to highlight the waypoint on the Map Page.

Or

Press MENU twice, highlight the Points tab, and choose a waypoint from the User or Proximity sub tabs.

2.Press ENTER to show the Waypoint Edit Page.

BASIC OPERATION > REVIEWING AND EDITING WAYPOINTS

3.From the Waypoint Edit Page, change the name, symbol, comment, location coordinates, or depth for the selected waypoint. When finished, highlight Next, and press ENTER to save them or press QUIT.

Symbol	Name
Coordinates	Comment
	Depth

Waypoint Edit Page

To change the waypoint name:

1.Highlight the waypoint name field, and press ENTER.

2.Use the ROCKER to enter a new name, and press ENTER when finished.

GPSMAP198C Sounder Owner’s Manual

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BASIC OPERATION > NAVIGATING TO A DESTINATION

To change the waypoint symbol:

1.Highlight the waypoint symbol field to the left of the waypoint name, and press ENTER.

2.Use the ROCKER to select a new symbol, and press

ENTER.

To change the Comment, Location, Coordinates, or Depth:

1.Highlight a field, and press ENTER.

2.Use the ROCKER to edit or enter the data. To move to the next line, press right on the ROCKER.

3.Press ENTER when finished.

To move the waypoint on the map:

1.From the Waypoint Edit Page, highlight Show Map, and press ENTER. Highlight the waypoint, and press ENTER. A MOVE label now appears under the pointer arrow in addition to a distance, bearing, and coordinate window. You can also use the IN and OUT keys to zoom the map. The map zoom range appears in the lower right corner.

2.Use the ROCKER to point to the new location, and press

ENTER.

3.To stop the move process, press QUIT.

Navigating to a Destination

Using the Nav Key

The NAV key provides three ways to navigate to a destination: Go To Point, Follow Route, and Follow Track (TracBack). When you are actively navigating, the Map Page shows a straight line from your current location to the destination. The Go To option is the easiest method for selecting a destination.AGo To allows you to select a destination point and quickly set a direct course from your present location. If you have a point highlighted on a list or the map, Go To <point name> appears in addition to Go To Point. The Go To function is accessed from any list of points or graphically from the Map Page.

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To start a Go To from a point list:

1.Press NAV. Highlight Go To Point, and press ENTER.

2.From the Find menu, highlight Waypoints or another menu option, and press ENTER.

3.To select a waypoint from the waypoint lists, use the ROCKER to highlight either the By Name or Nearest tab, select a waypoint, and press ENTER.

Or

Select a waypoint from the map, highlight either the User or Nearest tab, and press MENU. With Select From Map highlighted, press ENTER. Use the zoom IN and OUT keys and the ROCKER to select a waypoint, and press ENTER.

BASIC OPERATION > NAVIGATING TO A DESTINATION

Selecting a Go To Graphically

Agraphical Go To can be used to select one of three items from the Map Page: an existing waypoint, an on-screen map item such as roads, rivers, cities, and navaids, or a new map point. If you are selecting a map item as the Go To destination, the GPSMAP 198C Sounder automatically uses the name of the map item, but the point is not stored in the waypoint list. See page 21 for creating waypoints using map items. If you are selecting a new map point (non-map item) as the Go To destination, the GPSMAP 198C Sounder automatically creates a waypoint at the pointer location.

To start an existing waypoint or map item as a Go To from the Map Page:

1.Use the ROCKER to highlight the waypoint or on-screen map item, and press NAV. Go To <waypoint name> appears, then press ENTER.

Or

Highlight the waypoint or map item, and press ENTER.

2.Highlight the Go To button at the bottom of the window, and press ENTER.

GPSMAP198C Sounder Owner’s Manual

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BASIC OPERATION > NAVIGATING TO A DESTINATION

To Go To a new map point (non-map item):

1.Use the ROCKER to move the map pointer to the location.

2.Press NAV.

3.With Go To MAP Point highlighted, press ENTER.

TracBack Navigation (Navigating a Track)

The TracBack function retraces your path using the track log automatically stored in the receiver’s memory. This feature eliminates the need to store waypoints along the way. TracBack routes are created by reducing your track log into a route of up to 254 turns and activating an inverted route along those points. When started, a TracBack route leads you back to the oldest stored track log point, so it is a good idea to clear the existing track log before you start your current trip.

You must save a track before using the Follow Track option.

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To clear the track log and define a starting point for a TracBack route:

1.Press MENU twice to show the Main Menu.

2.Using the ROCKER, highlight the Track tab, then highlight the Active sub tab.

3.Use the ROCKER to select the Erase button, and press

ENTER.

4.Highlight the OK, and press ENTER.

You must save the track log before you can use Follow Track. The Save feature stores up to 15 track logs.

To save a track log:

1.From the Main Menu, use the ROCKER to highlight the Track tab, then highlight the Active sub tab to the right.

2.Use the ROCKER to select Save, and press ENTER.

3.From the Save Back Through window, highlight time, date, or Entire Log, and press ENTER. When the track is

saved, the Save Track window appears. The default name, distance, number of points (500 max), and color are shown in the Save Track window.

To change the name of the saved track, highlight the name field, and press ENTER. Make your changes and press

ENTER.

BASIC OPERATION > NAVIGATING TO A DESTINATION

To show the track on the Map and Highway Pages, highlight the check box to the left of Show on Map and Highway,

and press ENTER.

To view the track on the map, highlight Review on Map, and press ENTER.

4.Highlight OK, and press ENTER to save the track. Press QUIT to exit.

Default Track Name

Total number of points

Total Distance

Change color

of track line

Check this box to show track

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BASIC OPERATION > NAVIGATING TO A DESTINATION

To start a TracBack using the NAV key:

1.Press NAV, highlight the Follow Track, and press ENTER.

2.Highlight the track you want to follow, and press ENTER.

3.Choose Original to navigate from the start to the end of your trip, or Reverse to navigate from the end to the start of your trip, and press ENTER.

4.To stop TracBack navigation, press NAV, highlight Stop Navigation, and press ENTER.

When a TracBack is active, the GPSMAP 198C Sounder takes the track log currently stored in memory and divides it into segments called legs. Up to 254 temporary turns (BEGIN, TURN 1, TURN 2, TURN 3,...., TURN X, END) are created to mark the most significant features of the track log in order to duplicate your exact path as closely as possible. To get the most out of the TracBack feature, remember the following tips:

•Always clear the track log at the starting point.

•Set the Record Mode option on the track log setup page to Fill or Wrap.

•The track log memory must contain at least two points to create a TracBack route.

•If the track log interval is set to the Time option, the route can not follow your exact path. For best performance, keep the interval set to resolution.

•If the receiver is turned off or satellite coverage is lost during your trip, the TracBack draws a straight line between any point where coverage was lost and where it resumed.

•If the track log’s changes in distance and direction are too complex, 254 waypoints can not mark your path accurately. The receiver then assigns the 254 waypoints to the most significant points of your track, and simplifies segments with fewer changes in direction.

For more information on setting up the Track options and saved tracks, see pages 59.

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Routes

You can create and store up to 50 user-defined reversible routes (numbered 1-50), with up to 254 waypoints each. Routes are created and modified in two ways. The first method creates the route using a Map Page. This method selects points on the map. The second method enters the waypoint names as text on the Route Review Page. This method lists the waypoints as you create the route.All of the route functions are accessed through the Main Menu or the NAV key.

Route Tab

BASIC OPERATION > ROUTES

To create a route using the Route Edit Map Page:

1.Press MENU twice to show the Main Menu.

2.Use the ROCKER to highlight the Route tab, and press MENU to show the route options page, or highlight the first available blank route slot, and press ENTER. (Skip to step 4 if you use this method.)

3.Select New Route, and press ENTER.

4.To add an existing waypoint or map item to the route, use the map pointer to select a waypoint or map item, and press ENTER. Map items do not appear in the waypoint list. To create a waypoint from a map item, see page 21.

5.To add a new waypoint to the route, use the map pointer to select a map location, and press ENTER. Press ENTER again to confirm the new waypoint. You can also change the name and symbol of the new waypoint (see page 8).

As you add each new waypoint to the route, the data window at the top of the Map Page shows the waypoint/ map item name, bearing and distance from your location, and coordinates of the pointer. The bottom of the screen shows the number of available and used points. A route line appears on the map to indicate each completed leg, and a dotted line appears indicating the distance and bearing to the arrow pointer from the last route waypoint.

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BASIC OPERATION > ROUTES

6.Repeat steps 4 and 5 until you have finished defining all route waypoints.

7.When finished, press QUIT twice to return to the Route List Page. Highlight Edit as Text, and press ENTER to return to the Route Review Page.

To create a route using text on the Route Review Page:

1.Press MENU twice to show the Main Menu.

2.Use the ROCKER to highlight the Route tab, and press MENU to show the route options menu, or highlight the first available blank route slot, and press ENTER. (Skip to step 4 if you use this method.)

3.Select New Route, and press ENTER.

4.Press MENU, select Edit as Text, and press ENTER.

5.Use the ROCKER to highlight the first field under the word

Waypoint, and press ENTER.

ADD appears below the pointer as you insert points.

Choose the category you want to add a route point from.

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6.From the Find menu, highlight Waypoints or another menu item, and press ENTER. From either the By Name or Nearest tab lists, choose a waypoint, and press ENTER. (See page 50 for searching for waypoints by name.)

7.From the Waypoint Review Page, OK is automatically highlighted. You can use Show Map to view a point on the map. When finished viewing, then press QUIT to return to the Waypoint Review Page. Press ENTER to add the point to the route. The next field automatically highlights.

8.Repeat steps 5-7 until all the route points have been entered. Press QUIT to return to the Route List Page.

Choose a waypoint from either the

By Name or Nearest tab list.

BASIC OPERATION > FIND

Find

The FIND key searches the unit for user waypoints, map items, and any optional BlueChart or MapSource information loaded on a data card. Press FIND to show a list of available find categories. The default items are Waypoints, Cities, Tide Stations, and Transportation.Additional items, such asAnchorages, Businesses, Exits, Navaids, RestrictedAreas, and Wrecks Obstructions, appear if an optional BlueChart data card inserted into the unit. If you press FIND and are in Pan Mode, the unit centers its search from the location where the map pointer is located. Your location or the map pointer must be within a map outline area to search for BlueChart information.

Find Items List

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BASIC OPERATION > FIND

To Find an item from your current location:

1.From any page, press FIND.

2.Using the ROCKER, highlight a category from the list, and press ENTER.

3.For Waypoints and Cities, search using By Name or Nearest. Use the ROCKER to highlight a tab. For By Name, use the top field to spell out the name, or scroll down through the list. (See page 8 for steps on entering a name.)

To Find an item from other locations:

1.From the Map Page, use the ROCKER to pan select a location, and press FIND.

2.Using the ROCKER, highlight a category from the list, and press ENTER.

You can also Find from items found on

the Find List.

The Find option also supports a “find from” feature that centers your search around an item you have just found. For example, you search for “RestrictedAreas” and you find a point named “Anchoring Prohibited.” If you press FIND again, “From Anchoring Prohibited” appears as the new search from point.

You can also use the Find feature to center your search from any waypoint, route list entry, map item, or tide station. Highlight the item you want to find from and press FIND.

•Nearest To Boat—centers search from your boat’s current location.

•Nearest To Other—centers your search around another map location.

•Nearest To Next—centers search from the next point of your active route.

•Nearest To Destination—centers search from the last point of your active route.

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To Find an item using the Find options:

1From any page, press FIND.

2.Using the ROCKER, highlight a category from the list, and press ENTER.

3From the search results list, press MENU, highlight an option, and press ENTER.

Find Menu Options

BASIC OPERATION > ADDITIONAL INFORMATION

Additional Information

Items located using the Find feature have information about the point available. The information varies depending on the type of data loaded on the optional data card. Sub tabs along the top of the detail window contain the information available for the item.Any additional options are shown along the bottom.

To view additional information for a Find item:

1.From the Find list, highlight an item, and press ENTER.

2.Use the ROCKER to highlight the individual tabs, and show the information. To scroll the text, highlight the field, and press ENTER. Use the ROCKER to scroll.

Or

Press MENU, and choose a scroll option.

Additional

Information Tabs

Distance, Bearing,

and Coordinates of

item

Additional Options

Information Window

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BASIC OPERATION > DSC

DSC

The DSC Page of the Main Menu controls and sets up the Digital Selective Calling (DSC) features on the GPSMAP 198C Sounder.

Digital Selective Calling (DSC) uses marine VHF radio and Global Positioning System (GPS) technologies to transmit and receive location information. The chartplotter repeats the call properties received from the VHF radio on the chartplotter. The GPSMAP 198C Sounder requires input from a DSC enabled VHF radio to show position, and sound/show alerts from a Distress Call or Position Report. Conversely, the VHF radio requires input from a GPS to transmit position coordinates for a Distress Call or Position Report. For connection information, refer to “Connecting the Power/Data Cable” on page 99.

An emergency DSC Distress Call allows a vessel in trouble to transmit a substantial amount of information in a single

transmission or call, without the need for voice communication. When any nearby rescuer receives the DSC signal, an alarm sounds and they immediately receive the location of the caller. The rescuer can choose to navigate to the caller’s location to assist, or forward the call on to the Coast Guard. When the Coast Guard receives the call, they can immediately access the caller’s information (such as who they are and the type of vessel) in their database while they are in transit to the caller’s location.

Anon-emergency DSC Position Report allows mariners to exchange and show the positions of one another. When a DSC position is received, the mariner can choose to create a waypoint or to show the received location on an electronic map.

Anytime a vessel receives a DSC call, they can store and quickly navigate to that location using a Go To. In order to use DSC, users must first register their VHF radio with the FCC and receive a Maritime Mobile Service Identity (MMSI) number. Garmin does not provide MMSI numbers.

For more information about Digital Selective Calling and Maritime Mobile Service Identity (MMSI) numbers, refer to page 104 in the “Appendix.”

Understanding Distress Calls

When the GPSMAP 198C Sounder receives a Distress Call from a connected DSC enabled VHF radio, an alert message and

notification page are shown, and an alarm tone is sounded. Distress Calls are shown in the DSC Call List, and Log with a checkered symbol.

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Understanding Position Reports

APosition Report is similar to a Distress Call except no alarm is sounded. Position Reports are not broadcast to all DSC users and are shown with a boat symbol.

Receiving DSC Calls

Each time you receive a Distress Call or Position Report, a Notification Page is shown, and the call is placed in the DSC Call List and Log. The Notification Page contains information about the call including: the type of call (distress or position report), the MMSI number of the caller, a user definable name, the time and date of the call, the Bearing and Distance from your current position, and the coordinates of the caller. To see the callers location on a map, select the Show Map button. To create a waypoint at the caller’s location, select the Create Wpt button. To close the Notification Page, press QUIT.

BASIC OPERATION > DSC

When a Distress Call or Position Report is placed in the Call List and Log, the information on the Notification Page is retained. To review a DSC call or log entry, highlight the entry and

press ENTER. The DSC Entry Review Page is identical to the Notification Page with one exception, the entry can be deleted.

DSC Entry Review Page

To review a call or log entry:

1.Press Menu twice.

2.Open the Call List or Log from the DSC tab.

3.Press up or down on ROCKER to highlight the call you want to review.

4.Press ENTER to open the DSC Entry Review Page.

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BASIC OPERATION > DSC

DSC Call List

The DSC Call List shows the 50 most recent calls, even if the unit is left unattended. The Call List shows the most recent call from a vessel. If a second call from the same vessel is received, it replaces the first call in the Call List. Press MENU to sort the list and delete entries.

DSC Log

When DSC calls are received, they are automatically placed in the Log, with the most recent call at the top. The unit can log up to 100 calls. When 100 calls are logged, the oldest log is removed when a new call is received. Press MENU to sort the list and delete entries.

DSC Directory

The DSC Directory acts much like a phone book and can hold up to 50 entries. Pressing MENU from this page shows options to add a New Item, Delete a highlighted entry, or DeleteAll entries.

To add a new Directory entry:

1.Open the DSC Directory in the Main Menu.

2.Use the ROCKER to highlight the first blank space in the directory list, and press ENTER.

Or

Press MENU, highlight New Item, and press ENTER.

3.Enter the MMSI number, a Name, and any comments.

4.When finished, highlight OK, and press ENTER.

New Directory Item Page

When a Distress Call, Position Report, or Directory item is named, the name is attached to that particular MMSI number. If a name is used, all DSC entries of the same MMSI number show the name.

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