GPSMAP 182/182C/232

chartplotting receivers
owners manual and reference guide
(GPSMAP 232 and 182C shown)

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2003 Garmin Ltd. or its subsidiaries

Introduction Foreword

Garmin International, Inc., 1200 East 151st Street, Olathe, KS 66062, U.S.A. Tel. 913/397.8200 or 800/800.1020 Fax 913/397.8282 Garmin (Europe) Ltd., Unit 5, The Quadrangle, Abbey Park Industrial Estate, Romsey SO51 9DL, U.K. Tel. 44/1794.519944 Fax 44/1794.519222 Garmin Corporation, No. 68, Jangshu 2nd Road, Shijr, Taipei County, Taiwan Tel. 886/2.2642.9199 Fax 886/2.2642.9099 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 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 for personal use, provided that such electronic or printed copy of this manual or revision must contain the complete text of this copyright notice and provided further that any unauthorized commercial distribution of this manual is strictly prohibited. Information in this manual 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. 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, Autolocate, GPSMAP, TracBack, DCG, See-Thru, MapSource, and BlueChart are registered trademarks of Garmin Ltd. or its subsidiaries and may not be used without the express permission of Garmin.

June 2003

Part Number 190-00215-10 Rev. A

Printed in Taiwan i

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Preface
Introduction Preface/Registration/ Software License Agreement
Congratulations on choosing one of the most advanced marine navigation systems available! The Garmin GPSMAP 182/182C/232 models utilize the proven performance of Garmin GPS and full featured mapping to create unsurpassed marine navigation chartplotters. This manual covers instructions for the GPSMAP 182, GPSMAP 182C (color), and GPSMAP 232. Unit operation and specications will be the same on all three models unless otherwise specied. For GSD 20 sonar related operations, refer to GSD 20 Sounder Module with Garmin Chartplotters (190-00241-03). To get the most out of your new navigation system, take the time to go through this owners manual and learn the operating procedures for your unit. This manual is broken down into two parts for your convenience. Part One introduces you to the GPSMAP 182/182C/232 and provides a Getting Started tour so that you may become more familiar with the unit. This section will provide you with a basic working knowledge necessary to use the unit to its fullest potential. Part Two is divided into sections that provide detailed references to the advanced features and operations of the GPSMAP 182/182C/232. This allows you to concentrate on a specic topic quickly and look up detailed information about the GPSMAP 182/182C/232.
Software License Agreement
Customer Service Product Registration
Help us better support you by completing our on-line registration today!
Have the serial number of your GPSMAP 182/ 182C/232 handy and connect to our web site (www.garmin.com). Look for the Product Registration link on the Home page. Also, be sure to record your serial number in the area provided on page iv of this manual. NOTE: If you have previously registered a Garmin product purchase, we invite you to re-register using our NEW on-line system. Many services provided by our new product registration system are now being automated and re-registering your purchase ensures you the best possible support from Garmin.
BY USING THE GPSMAP 182/182C/232, YOU AGREE TO BE BOUND BY THE TERMS AND CONDITIONS OF THE FOLLOWING SOFTWARE LICENSE AGREEMENT. PLEASE READ THIS AGREEMENT CAREFULLY. Garmin grants you a limited license to use the software embedded in this device (the Software) in binary executable form in the normal operation of the product. Title, ownership rights and intellectual property rights in and to the Software remain in Garmin. You acknowledge that the Software is the property of Garmin and is protected under the United States of America copyright laws and international copyright treaties. You further acknowledge that the structure, organization and code of the Software are valuable trade secrets of Garmin and that the Software in source code form remains a valuable trade secret of Garmin. You agree not to decompile, disassemble, modify, reverse assemble, reverse engineer or reduce to human readable form the Software or any part thereof or create any derivative works based on the Software. You agree not to export or re-export the Software to any country in violation of the export control laws of the United States of America.

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Designed for detailed electronic charting capability, the Garmin GPSMAP 182/182C/232 is a powerful navigation device that can give you the information you need: Precision Performance 16-color TFT display with backlighting (GPSMAP 182C only) High-contrast, ten-level gray, LCD screen with backing (GPSMAP 182/232 only) 12-channel parallel receiver tracks and uses up to 12 satellites for fast, accurate positioning WAAS Capable receive signals from the additional set of WAAS (Wide Area Augmentation System) satellites to give you better accuracy. Differential-Ready just add an optional Garmin beacon receiver for better than 5-meter accuracy Fully gasketed, high-impact plastic alloy case, waterproof to IEC 529-IPX-7 Advanced Navigating and Plotting 3000 alphanumeric waypoints with selectable icons and comments Built-in Worldwide basemap to 20 miles includes detailed ocean, river and lake coastlines, cities, interstates, US state highways and local thoroughfares 50 reversible routes with up to 50 (254 GPSMAP 182C) waypoints each Uploadable maps using Garmins MapSource PC products and BlueChart Data Cards Coordinates: Lat/Lon, UTM/UPS, Loran TD, plus 16 grids, including Maidenhead TracBack route feature which allows you to quickly retrace your track log to a starting position Built-in simulator mode Built-in tide information from over 3,000 tide stations around the USA coastline, Alaska, Hawaii, western Canada and several Caribbean Islands
Introduction Capabilities
Superior Fishnding Ability (when combined with the GSD 20 Sounder Module) Whiteline feature provides a clear image of bottom hardness and structure. See-Thru technology which helps separate sh returns from thermoclines and structure. Depth Control Gain (DCG) feature automatically adjusts shnder sensitivity according to depth Four Zoom levels with a moving view window, plus bottom lock. Underwater waypoint marking Map/Sonar split screen combines navigation and shnding ability. Fish and Depth alarms. v

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Introduction Packing List
Before installing and getting started with your unit, please check to see that your package includes the following items. If any parts are missing, please contact your Garmin dealer immediately. Standard Package: GPSMAP 182/182C/232 Unit GA 29 Remote Antenna and 30 cable* Internal Antenna, Bail Mount** Ferrite Bead Filter Clamp (GPSMAP 182C Only) Gimbal Mount and Knobs Power/Data Cable Owners Manual Quick Reference Card Protective Cover
* Not included with part numbers 010-00238-01 or 010-00259-01 with internal bail mount antenna. ** Not included with part numbers 010-00238-00 or 010-00259-00 with remote antenna.

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Using the Map Cursor
Getting Started Map Cursor
Working from the Map Page is a simple process that centers around the use of the cursor. Controlled by the ARROW KEYPAD, the cursor is an important tool that can be used to pan to other map locations, mark and edit waypoints and routes, and review position data of on-screen map items and waypoints. To get a feel for using the Map Page and using the cursor, try the following exercise:
1. Use the IN/OUT keys to set the map scale to the 50 nm setting. Your boat should be near the center of the map, at the receivers last known position. (If your boat isnt where it should be, make sure that you have initialized the receiver and acquired a position as described on pages 1-2.) 2. Use the ARROW KEYPAD to move the cursor. Notice how another data eld appears, showing the bearing and distance from your boat to the cursor, along with the latitude/longitude of the cursor. 3. Press the QUIT key to remove the cursor and re-center your boat on the map display.

Current position

As you become more familiar with the cursor, youll see that the map display actively scrolls or pans, letting you explore areas around the world and create waypoints and routes. Wherever you move the cursor, youll always be just one QUIT keystroke away from returning the map to your present position. Now that youve seen how the Map Page can be used to monitor your present location, lets take a minute to learn how to mark and store your present position as a waypoint. (Since youre in simulator mode, the present position displayed will be the last position calculated by the receiver, which should be the spot where youve initialized the unit.) This will also give you an opportunity to see how the GPSMAP 182/182C/232s keypad and ENTER/MARK key are used for data entry and changing the waypoint name and symbol.

Map Scale

Distance Bearing
Cursor Coordinates Map Cursor
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Getting Started Marking Waypoints
To mark your present position:
1. Hold down the ENTER/MARK key until the New Waypoint window appears then release the key. The window will show a default three-digit waypoint name/number (001), symbol (dot), and position. You can leave the name as the auto-assigned number, but for this exercise, lets change the name to DOCK. 2. Use the ARROW KEYPAD to highlight the waypoint name eld (001) and press ENTER/MARK. You will see that just the rst 0 is now highlighted. 3. Press LEFT on the ARROW KEYPAD to clear the name eld.

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The GPSMAP 182/182C/232s Highway Page also provides graphic steering guidance to a destination waypoint, placing greater emphasis on the straight-line desired course and the distance and direction you are off course. As you head toward your destination, the middle of the screen provides visual guidance to your waypoint on a moving graphic highway. Your present position is at the bottom center of the highway display. The line down the middle of the highway represents your desired course. As you navigate toward a waypoint, the highway will actually moveindicating the direction youre off course. To stay on course, simply steer toward the center of the highway or keep it on the road. The four default data elds at the top of the page indicate Speed and Distance To Next point, along with To Course which shows the bearing to get you back on course and Time To Next point. Additionally, a compass ribbon is displayed to show your current heading along with a dark, vertical bar which will indicate the direct bearing to the navigation point. When the dark, vertical indicator (or arrow) lines up with the lighter red bar in the middle, you are heading directly to the navigation point. Use the Highway Page as your primary navigation page (in lieu of the Compass Page) when your main concern is following a dened course. Whenever the GPSMAP 182/182C/232 is in simulator mode, you can also adjust your speed and course from the Highway Page using the ARROW KEYPAD. As you head toward each waypoint in the tour route, try adjusting your boat speed and course to get a feel for how the highway works.
To adjust the simulated boat speed/heading from the Highway Page:
1. Press the UP arrow of the ARROW KEYPAD to increase the speed in 10 knot/kph/mph increments. Press the DOWN arrow to decrease the speed in the same increments. Press the LEFT and RIGHT arrows of the ARROW KEYPAD to steer the boat.
Getting Started Highway Page
Current Waypoint Data Fields Desired Course

Present Position

Zoom Scale
Notice that as you get off course, the highway will move to give you graphic guidance to get back on course. You can zoom in or out on the Highway display for a smaller or larger view. Five available settings range from 1X to 16X, with a default setting of 8X. The current scale will appear in the bottom right of the display. To zoom in or out on the highway display:
1. Press either the IN or OUT key to increase or decrease the zoom scale.
Steer towards the center of the highway or towards the black vertical bar on the compass ribbon to get back on course.
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Getting Started Active Route Page/ Main Menu Page
The main pages data elds may also be congured to display several different information categories (see pages 22-23 for the complete list). On the Highway Page, lets change the TIME TO NEXT eld to TIME OF DAY. To change a data eld:

The bearing pointer, bearing bug and/or compass ring may point in various directions when you are stationary or at very low speeds. Once you start moving, the pointer will be correct.
Current Go To Bearing Bug

Destination

The GPSMAP 182/182C/232s Compass Page features a menu page that provides access to layout and data eld options. The data window, located at the top of the page, provides a user-selectable layout of various types of useful data. Each data eld may be congured to display several data options. The data window layout may also be changed to display more/less data elds and change the actual size of the data displayed. To display the Compass Page options:

Bearing Pointer

Compass Ring
1. Use the ARROW KEYPAD to highlight the desired option and press ENTER/MARK. For detailed instructions on changing the data elds and layout of the Compass Page, see pages 22-23.
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Reference Numbers/Highway Pages
The Numbers Page provides a quick reference for the important data you want to display. The default page will display three large, user-selectable data elds showing a compass ribbon, speed and current position coordinates. You may also choose to show the three data elds in large lettering for better readability or you may split any or all of the data elds to show 4 smaller data elds. For detailed instructions on changing the data elds and layout of the Numbers page, see pages 22-23.
Numbers Page shown with middle data eld split into four elds
Whenever a Go To, TracBack or route has been activated, the GPSMAP 182/182C/232s Highway Page will provide digital and graphic steering guidance to the destination with the Navigation Page. The top half of the Highway Page features user-selectable data elds that display useful navigation data. Additionally, a compass ribbon is displayed to show your current heading along with a dark, vertical bar which will indicate the bearing to your course. To stay on course, steer towards the dark, vertical indicator (or arrows) until it lines up with the lighter red bar in the middle. The bottom section of the screen provides visual guidance to the waypoint on a graphic highway display. The line down the center of the highway represents your desired track line. As you head toward your destination, the highway perspective moves to indicate your progress to the waypoint and which direction you should steer to stay on course. If you are navigating a route, the Highway Page shows each route waypoint in sequence connected by a red road with a yellow line down the middle, which is your desired track line. Nearby waypoints not in the active route can also be displayed. The highway perspective scale may also be zoomed in or out to display a larger or smaller view of the highway. Five settings are available from 1X to 16X, with a default setting of 8X.

1. From any page, press the NAV key, then using the ARROW KEYPAD, highlight Follow Route and press ENTER/MARK. (If you highlight a route from the Route List or Route Review page and press NAV, the window will automatically display, Follow <the route name>.) 2. Highlight the route you wish to navigate and press ENTER/MARK. 3. Choose Activate or Invert and Activate and press ENTER/MARK. (Activate will use the route as is, Invert and Activate will reverse the route then activate it.)
If you highlight a route name from the Route List and press NAV, the name will automatically appear.
To deactivate (stop navigation) of a route:
To copy or delete a route:
1. From the Route List, using the ARROW KEYPAD, highlight the route you want to copy or delete and press MENU. 2. Choose either Copy Route or Delete Route and press ENTER/MARK and with OK highlighted, press ENTER/MARK again to conrm a deletion. Copy will use the same route name with an additional number, starting at 1, at the end of the route name.

Route List Menu

To delete all routes:
1. From the Route List, press MENU. 2. Highlight Delete All and press ENTER/MARK and with OK highlighted, press ENTER/MARK again to conrm the deletion.
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Reference Route Review Page

Route Name Data Fields

Route Review Page
Once you have created a route, the Route Review page allows you to review and modify the route displayed. To get to the Route Review page:
1. Press MENU twice, highlight the Route tab. 2. Highlight the name of the route you wish to review and press ENTER/MARK.
The Route Review page also allows you to enter your own 15-character name for any listed route. By default the name includes the rst and last waypoints in the route. To enter a custom route name:
1. From the Route Review page, highlight the name eld and press ENTER/MARK to begin editing. 2. Use the ARROW KEYPAD to enter the desired name and press ENTER/MARK when nished.

Route Points Data Totals

Once you are on the Route Review page, you may review the route points (waypoints or map items) one at a time from the list. To review individual route points:
1. Highlight the desired point and press ENTER/MARK. 2. On the waypoint review window, you may choose Next (highlight the next point on the route list), Show Map (show the point on a map window) or Delete (permanently delete the waypoint from the unit) and press ENTER/MARK.
Route Review Options Menu
Once you are back on the route point list, the next point in the route will automatically be highlighted. This allows you to review each point on the route by pressing only ENTER/MARK repeatedly.

Delete Route deletes a route from the Route List. Waypoints and map items will not be deleted from unit memory. To delete a route:
1. From the Route Review page press MENU. 2. Highlight Delete Route and press ENTER/MARK and ENTER/MARK again to conrm the deletion.
Trip Planning Data Fields
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Reference Active Route Page
Whenever you have activated a route in the GPSMAP 182/182C/232 system, the Active Route page shows each point (waypoint or map item) of the active route, with the point name, distance and choice of Course, ETA, Fuel to point, Leg Distance, Leg Fuel, Leg Time, Sunrise and Sunset at point location, or Time To point for each point from your present position. The current destination point, the active point, is marked with an arrow icon. As you navigate a route, the waypoint list will automatically update to indicate the next active point rst. The Active Route and Route Review pages share many of the same features and options. The following route options are available from the Active Route page: Hide/Show Numbers see page 21 for instructions (same as Map Page option). Change Numbers see page 22-23 for instructions. Edit on Map see page 45 for instructions. Add Before see pages 45-46 for instructions. Remove see pages 45-46 for instructions. Invert reverses the direction of the route. Re-evaluate recalculates and reactivates the current route data. Invert reverses the route. To Invert an active route:
1 From the Active Route page, press MENU.
Active Route Page Menu Options
2. Using the ARROW KEYPAD, highlight Invert and press ENTER/MARK to reverse the route.
Re-evaluate reactivates the current route and selects the route leg closest to your current position as the active leg. The active leg denes the current from and to waypoints. To Re-evaluate an active route:
1 From the Active Route page, press MENU. 2. Using the ARROW KEYPAD, highlight Re-evaluate and press ENTER/MARK to recalculate.
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Find Function

Reference Find Key

The FIND key allows you to search the units for user waypoints, map items and any optional BlueChart or MapSource information loaded on a data card. By pressing the FIND key, the unit will search for items from your current location by default or you may also search from other locations. When you press FIND, a list of available items to search from will appear. The default items are Waypoints, Cities, Tide Stations and Transportation. Additional items, such as Anchorages, Businesses, Exits, Navaids, Restricted Areas, Wrecks Obstructions, etc., will display depending on the optional BlueChart or MapSource data card inserted into the unit. If you pan around on the Map Page and press FIND, the unit will center its search from the point where the cursor is located. When using BlueChart or MapSource data, your position or the map pointer must be within the map outline area to search for information from that area. To Find a waypoint or other item from your current location:

Systm (System) Tab Normal Mode Retail Demo mode will restore factory settings to the unit if left unattended for over 2 minutes. This mode should only be used for display purposes. User waypoints will NOT be deleted.

Simulator Mode

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Units Tab denes Position Format, Map Datum, Heading, Distance, Speed, Elevation, Depth and Temperature. The following settings are available: Position Format is used to change the coordinate system in which a given position reading is displayed. You should only change the position format if you are using a map or chart that species a different position format or wish to use a format you are familiar with. The default format is latitude and longitude in degrees, minutes, and thousandths of a minute (hdddmm.mmm). The following additional formats are available: hddd.ddddd latitude/longitude in decimal degrees only hdddmmss.s latitude/longitude in degrees, minutes, seconds UTM/UPS Universal Transverse Mercator / Universal Polar Stereographic grids British Grid Dutch Grid Finnish KKJ27 German Grid India Zones Irish Grid Loran TD Maidenhead MGRS New Zealand Qatar Grid RT90 Swedish Grid Swiss Grid Taiwan Grid User Grid W Malayan RSO For additional information on Loran TD setup, see pages 68-69.
Map Datum allows you to manually select the datum reference used to determine a given position. The default setting is WGS 84. The unit will automatically choose the best datum depending upon your chosen position format. Datums are used to describe geographic positions for surveying, mapping, and navigation and are not actual maps built in the unit. Although over 100 datums are available (as listed on pages 79-80), you should only change the datum if you are using a map or chart that species a different datum.
Reference Main Menu: Units Tab
The Units tab settings will affect how navigation information is displayed on the GPSMAP 182/182C/232. When in doubt, seek assistance. If you are using a map or chart in conjunction with your GPS, make sure the settings under the Units tab of the GPSMAP 182/182C/232 match that of the map or chart. This information should be displayed somewhere on the map or chart. If the information is not present, contact the map or chart maker to determine what position format, datum, heading and units of measure are being used for the map or chart.

Port 1 GARMIN Data Transfer the proprietary format used to upload/download MapSource data, exchange waypoint, route, track, almanac, and proximity data with a PC or another Garmin GPSMAP 182/182C/ 232. When you select GARMIN Data Transfer, there are 11 Transfer Modes to choose from: Host, Request Almanac, Request Proximity, Request Routes, Request Tracks, Request Waypoints, Send Almanac, Send Proximity, Send Routes, Send Tracks and Send Waypoints.
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GARMIN Remote Sonar supports the GSD 20 Sonar Module interface. NMEA In/NMEA Out supports the input/output of standard NMEA 0183 data, and sonar NMEA input support for the DPT, MTW and VHW sentences. None provides no interfacing capabilities. Port 2 GARMIN Remote Sonar supports the GSD 20 Sonar Module interface. GARMIN DGPS used to connect the GPSMAP 182/182C/232 with a Garmin DGPS beacon receiver. Other DGPS allows DGPS input using a standard RTCM format, without any output capabilities. NMEA In/NMEA Out supports the input/output of standard NMEA 0183 data, and sonar NMEA input support for the DPT, MTW and VHW sentences. You may also adjust the NMEA output. RTCM In/NMEA Out allows Differential GPS (DGPS) input using a standard RTCM format and also provides NMEA 0183 output. None provides no interfacing capabilities.
Reference Main Menu: Comm Tab
To select an input/output format:
1. Select the desired Port tab, then highlight the Serial Data Format eld and press ENTER/MARK. 2. Use the ARROW KEYPAD elect the desired setting and press ENTER/MARK.
To select a transfer mode:
1. Use the ARROW KEYPAD to select GARMIN Data Transfer in the Serial Data Format eld. 2. Highlight the Transfer Mode eld and press ENTER/MARK. 3. Use the ARROW KEYPAD to select the desired setting and press ENTER/MARK.

Comm Tab

Data Transfer Progress
You may also adjust the NMEA output to enable/disable certain sentences and adjust the number of Lat/Lon output precision digits. You must have one of the ports set to NMEA In/NMEA Out to use this option. Settings will affect both Port 1 and Port 2 NMEA outputs. To adjust the NMEA output:
1. From the Comm tab, press MENU, highlight NMEA Setup and press ENTER/MARK. 2. Highlight the desired option and press ENTER/MARK. 3. Use the ARROW KEYPAD to select the desired setting and press ENTER/MARK. Press QUIT when done to return to the Comm tab.

When transferring data between two Garmin units, be sure to always set one to Host and use the other unit to either Send or Request the desired data.
Advanced NMEA Output Setup Page
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Reference Main Menu: Comm tab
To restore the Serial Data Format settings back to the default GARMIN Data Transfer:
1. From the Comm tab, press MENU, highlight Defaults and press ENTER/MARK.
If GARMIN DGPS or RTCM In/NMEA Out format is selected, additional elds are provided to control a Garmin differential beacon receiver directly from your GPSMAP 182/182C/232. You may have the unit automatically scan for the DGPS beacon signal or you can enter the beacon frequency and bit rate on the unit and the information will be used to tune the beacon receiver. To have the unit automatically scan for a frequency:
1. With the unit set to GARMIN DGPS or RTCM In/NMEA Out, use the ARROW KEYPAD to highlight the Beacon eld and press ENTER/MARK. 2. Highlight Scan and press ENTER/MARK. The numbers in the Frequency eld will change as the unit scans from 284 kHz to 325 kHz, 200 bit rate, then 100, at 6-second intervals.
Status Field SNR and Distance will show data when signal is received.

To restart the scan:

1. Press MENU, highlight Restart Scan and press ENTER/MARK.
To manually enter a frequency and bit rate:
1. With the unit set to GARMIN DGPS or RTCM In/NMEA Out, use the ARROW KEYPAD to highlight the Beacon eld and press ENTER/MARK. 2. Highlight User and press ENTER/MARK. 3. Highlight the Frequency or Bit Rate eld, press ENTER/MARK, then enter a frequency or bit rate and press ENTER/MARK when done.
The DGPS beacon transmitters are operated by the U.S. Coast Guard (or similar government agency in other countries), which is responsible for their accuracy and maintenance. For DGPS transmitter problems or to find the most updated list of frequencies and coverage areas, contact your local USCG, or see their web site at http://www.navcen.uscg.mil/.

The Status eld will show one of the following: Tuning unit is attempting to tune to the specied frequency and bit rate. Scanning unit is automatically scanning through the frequencies and bit rates. Receiving unit is receiving DGPS signal and ready for operation. Check Wiring unit is not making connection with DGPS receiver. When the unit is receiving a DGPS signal, the SNR (Signal to Noise Ratio) and Distance elds will show data. The SNR range is 0dB to 30dB, with 30 being the best. The Distance may or may not show data, depending upon the signal being broadcast from the DGPS site.
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Alarm Tab allow you to dene the alarm settings. The Alarm tab is divided into three submenu tabs: System alarms, Nav alarms and Sonar alarms. System Tab: Clock provides an alarm for the system clock. Enter a time in the time eld and turn the alarm on and off from the control eld menu. Remember to enter alarm times in the same time format (UTC or local) youre using for your system. The unit must be on for the clock alarm to work. Battery sets an alarm to sound when the battery is reaching a critical state of discharge. DGPS and Accuracy DGPS alarm will sound when the unit loses a differential x. The accuracy alarm will sound when the GPS position accuracy falls outside the user-set value. Nav Tab: Anchor Drag sets an alarm to sound when youve exceeded a specied drift distance. Enter a value in the distance eld and use the control eld to turn the alarm on and off. Arrival sets an alarm to sound when youre a specied distance or time away from a destination waypoint. Enter a distance radius or time for sounding the alarm and use the control eld to set the alarm to Off, Dist (Distance), or Time. Off Course sets an alarm to sound when youre off a desired course by a specied distance. Enter a distance in the distance eld and use the control eld to turn the off course alarm on and off. Sonar Tab: (You must be receiving sonar NMEA data (pg. 87) for these functions to work. Shallow Water/Deep Water set alarms to sound when you enter an area of specied depth that is too shallow and/or too deep. Enter a depth in the distance elds and use the control elds to turn the alarms on and off. Water Temperature sets an alarm to sound when the transducer reports a temperature either above, below, inside or outside the specied values. Fish sets alarm to sound when unit detects a sh of the specied symbol size. To set an alarm:
Use the ARROW KEYPAD to highlight desired submenu tab of the Alarm Tab. Highlight the eld below the alarm name you wish activate and press ENTER/MARK. Change the mode to the desired setting and press ENTER/MARK. Highlight the next eld to the right and press ENTER/MARK, then enter the desired settings and press ENTER/MARK to nish. 5. If you want the alarm to display and beep until acknowledged, highlight the Persist box and press ENTER/MARK to place a check mark in the box. 1. 2. 3. 4.

DSC Position Report

Position Report Message
The Position Report operates similarly to the Distress Call. Remember this type of contact is like a phone call, but no emergency alarms are set off and the call is specic to the receiver. Position Reports are not broadcasted to all DSC users.
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DSC Call List
The DSC Call List displays the current calls received. The GPS can manage up to 50 calls. When calls are received, they are updated constantly to give the most current information, even if the unit is left unattended. Any entry from the Call List can be selected to show an Entry Review.

DSC Log

When DSC calls are received, they are automatically stored in the Log, with the latest call at the top. The unit may store up to 100 logs. Once 100 logs are received, the oldest log le is removed when a new call is received. The Log displays information of call Type, Date/Time, Position, and MMSI/Name. Pressing MENU from this page allows you to Sort By Time, Sort By Name, Sort By (Call) Type, Delete (only after highlighting a particular call), and Delete All.

To Review a Call:

1. From the DSC tab of the Main Menu and the Log or Call List tab highlighted, press DOWN Arrow Keypad until the call you want to review is highlighted. 2. Press ENTER/MARK to select the call.

DSC Entry Review

The DSC Entry Review operates similarly to the Distress Page and Position Report Page. This page has the additional option to Delete the displayed call. From the DSC Entry Review, the user can Delete the entry, Show on map, or Create Waypoint.and create a name for the entry.

DSC Directory

The DSC Directory acts much like a phone book. A user can save up to 50 contacts. The directory lists by Name and MMSI number. Pressing MENU from this page allows you to create a New Item, Delete Item, or Delete All.
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There are two ways to add a new entry into the directory.
To add a new Directory entry:
1. Press Menu, then highlight New Item and press ENTER/MARK. 2. Or, with the Directory Tab highlighted press the Arrow Keypad DOWN, highlight an empty eld and press ENTER/MARK to access the New Directory Item window.
The New Directory Item window allows the user to input information of a known contact. To add the MMSI number, Name, or Comment:
1. Press UP/DOWN on the Arrow Keypad to highlight the MMSI, Name, or Comment eld.

Chua Astro Croatia Corrego Alegr Djakarta Dos 1968 Dutch Easter Isld 67 European 1950
Chua Astro- Paraguay Croatia Corrego Alegre- Brazil Djakarta (Batavia)- Sumatra Island (Indonesia) Dos 1968- Gizo Island (New Georgia Islands) Dutch Easter Island 1967 European 1950- Austria, Belgium, Denmark, Finland, France, Germany, Gibraltar, Greece, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland European 1979- Austria, Finland, Netherlands, Norway, Spain, Sweden, Switzerland Finland Hayford- Finland Gandajika Base- Republic of Maldives Geocentric Datum of Australia Geodetic Datum 49-New Zealand Guam 1963- Guam Island Guadalcanal Island Hjorsey 1955- Iceland Hong Kong Taiwan Indian- Bangladesh, India, Nepal Indian- Thailand, Vietnam Indonesia 1974-Indonesia Ireland 1965- Ireland ISTS 073 ASTRO 69- Diego Garcia

Appendix E Map Datums

The GPSMAPs built-in world-wide database includes coverage down to 20 n.m. (30 km). Note that the GPSMAP 182/182C/232 basemap is valid to 75 north and 60 south of latitude.

European 1979

Finland Hayfrd Gandajika Base GDA Geod Datm 49 Guam 1963 Gux 1 Astro Hjorsey 1955 Hong Kong 63 Hu-Tzu-Shan Indian Bngldsh Indian Thailand Indonesia 74 Ireland 1965 ISTS 073 Astro
The User datum is based on a WGS-84 Local datum and is an advanced feature for unlisted or custom datums. To learn more, check your local library or on the world wide web for educational materials on datums and coordinate systems.
182C Manual Part 2.indd 79
Johnston Island Kerguelen Islnd Kertau 1948 L. C. 5 Astro Liberia 1964 Luzon Mindanao Luzon Philippine Mahe 1971 Marco Astro Massawa Merchich Midway Ast 61 Minna NAD27 Alaska NAD27 Bahamas NAD27 Canada NAD27 Canal Zone NAD27 Caribbn Johnston Island Kandawala Kandawala- Sri Lanka Kerguelen Island West Malaysia, Singapore Cayman Brac Island Liberia 1964- Liberia Luzon- Mindanao Island Luzon- Philippines (excluding Mindanao Isl.) Mahe 1971- Mahe Island Marco Astro- Salvage Isl. Massawa- Eritrea (Ethiopia) Merchich- Morocco Midway Astro 61- Midway Minna- Nigeria North American 1927- Alaska North American 1927- Bahamas (excluding San Salvador Island) North American 1927- Canada and Newfoundland North Am. 1927- Canal Zone North American 1927- Caribbean (Barbados, Caicos Islands, Cuba, Dom. Rep., Grd. Cayman, Jamaica, Leeward and Turks Islands)

NAD27 Central

North American 1927-Central America (Belize, Costa Rica, El Salvador, Guatemala, Honduras, Nicaragua) North Am. 1927- Mean Value (CONUS) North American 1927- Cuba North American 1927- Greenland (Hayes Peninsula) N. American 1927- Mexico North American 1927- San Salvador Island North American 1983- Alaska, Canada, Central America, CONUS, Mexico Nahrwn- Masirah Island (Oman) Nahrwn- Saudi Arabia Nahrwn- United Arab Emirates Naparima BWI- Trinidad and Tobago Observatorio 1966- Corvo and Flores Islands (Azores) Old Egyptian- Egypt Old Hawaiian- Mean Value Oman- Oman Old Survey Grt Britn- England, Isle of Man, Scotland, Shetland Isl., Wales Canary Islands Potsdam-Germany Pitcairn Astro 67- Pitcairn Prov So Amricn 56- Bolivia, Chile,Colombia, Ecuador, Guyana, Peru, Venezuela So Chilean 63- S. Chile Puerto Rico & Virgin Isl. Qatar National- Qatar

chartplotting receiver

GPSMAP 182/182C

owners manual

(GPSMAP 182C shown)
Copyright 2005 Garmin Ltd. or its subsidiaries Garmin International, Inc. 1200 East 151st Street, Olathe, Kansas 66062, U.S.A. Tel. 913/397.8200 or 800/800.1020 Fax 913/397.8282 Garmin (Europe) Ltd. Unit 5, The Quadrangle, Abbey Park Industrial Estate, Romsey, SO51 9DL, U.K. Tel. 44/0870.8501241 Fax 44/0870.8501251 Garmin Corporation No. 68, Jangshu 2nd Road, Shijr, Taipei County, Taiwan Tel. 886/2.2642.9199 Fax 886/2.2642.9099
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, See-Thru, MetroGuide, BlueChart, and MapSource are registered trademarks of Garmin Ltd. or its subsidiaries and may not be used without the express permission of Garmin.

May 2005

Part Number 190-00584-00 Rev. A

Printed in Taiwan

INTRODUCTION > ABOUT THIS MANUAL

INTRODUCTION

Thank you for choosing the Garmin GPSMAP 182/182C. 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 182/182C, review the installation instructions listed in the Appendix. If you have any question about installing your chartplotter, contact Garmin Product Support or a professional installer. The GPSMAP 182/182C Quick Reference Guide contains helpful tips on using the unit and performing various navigation tasks. It is a good idea to keep the Quick Reference Guide nearby whenever you are operating your new GPSMAP 182/182C.
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 182/182C 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 congure your unit. The Using Sonar section contains information on optional sonar capablities. The Appendix contains installation instructions, specications, optional accessories, and maintenance information. You can also nd warranty and FCC information in the Appendix. Read the Safety Information to learn how to install and use your Garmin GPSMAP 182/182C safely and responsibly. An Index is provided at the end of the manual for reference.

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 sections. The Introduction section contains the Table of Contents and GPSMAP 182/182C care information.
GPSMAP 182/182C Owners Manual
INTRODUCTION > TABLE OF CONTENTS

Table of Contents

Introduction...i
About This Manual.. i Care Information... iv 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 ENTER/MARK Key... 8 Creating Waypoints Graphically... 9 Man OverBoard (MOB)... 10 Reviewing and Editing Waypoints.. 11 Navigating to a Destination.. 12 Using the Nav Key... 12 Selecting a Go To Graphically.. 13 TracBack Navigation (Navigating a Track).. 14 Routes... 17 Find... 19 Additional Information... 21 DSC.... 22 Understanding Distress Calls... 22 Understanding Position Reports... 23

The GPSMAP 182/182C now begins searching for the appropriate satellites for your region and should acquire a x 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 barsthe receiver is looking for the satellites indicated. Hollow signal strength barsthe receiver has found the indicated satellite(s) and is collecting data. Solid signal strength barsthe receiver has collected the necessary data and the satellite(s) are ready for use. When the receiver has collected information from at least three satellites, the top of the screen displays either Ready 2D or 3D, and the GPSMAP 182/182C is ready for use.
BASIC OPERATION > SIMULATOR MODE

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 182/182C 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.
NOTE: 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 displayed are only simulations and do not represent the strength of actual satellite signals.
1. Press MENU twice to display the Main Menu. Press up or down on the ROCKER until the GPS tab is highlighted, then press MENU. 2. Use the ROCKER to highlight Start Simulator, and press ENTER. Highlight No on the retail demonstration window, and press ENTER. 3. Press ENTER to conrm the Running Simulator message that appears at the bottom of the display. Simulating appears at the top of each of the Main pages. 4. To turn off the Simulator Mode, press MENU, and select Stop Simulator.
To place the GPSMAP 182/182C in Simulator Mode:
BASIC OPERATION > ADJUSTING THE BACKLIGHT
The Set Position, Track Control, Track and Speed elds only show while in Simulator Mode.
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.
To adjust the simulated speed and heading from the Pointer or Highway Pages:

Adjusting the Backlight

The GPSMAP 182/182Cs screen backlight is controlled with the POWER key, and can be adjusted from any page. To enter a simulated speed and heading from the Main Menu:

To display 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. Pressing MENU on this page activates the options to Measure Distance (see page 32) and Point to on Main Map. Press QUIT to return to the Save Track window. 4. Highlight OK and press ENTER to save the track. Press QUIT to exit.

To save a track log:

Default Track Name Total number of points Total Distance Check this box to display track Change color of track line
BASIC OPERATION > NAVIGATING TO A DESTINATION 1. Press NAV, highlight the Follow Track option, 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 choose 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.
To activate a TracBack using the NAV key:
When a TracBack is active, the GPSMAP 182/182C 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 signicant 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. The Record Mode option on the track log setup page must be set to Fill or Wrap. There must be at least two track log points stored in memory 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 logs changes in distance and direction are too complex, 254 waypoints may not mark your path accurately. The receiver then assigns the 254 waypoints to the most signicant points of your track, and simplies segments with fewer changes in direction. For more information on setting up the Track options and saved tracks, see page 59.

To create a route using text on the Route Review Page:
ADD appears below the pointer as you insert points.
Choose the category you want to add a route point from.
BASIC OPERATION > FIND 6. From the Find menu, highlight Waypoints, and press ENTER. You can also choose from other categories, such as Cities or Tide Stations from this list. From either the By Name or Nearest tab lists, choose the waypoint you want 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 the Show Map option to view the point on the map, and then press QUIT when nished viewing to return to the Waypoint Review Page. Press ENTER to add the point to the route. The next eld automatically highlights. 8. Repeat steps 5-7 until all the route points are entered. Press QUIT to return to the Route List Page.
Use the FIND key to search the unit for user waypoints, map items and any BlueChart or MapSource information loaded to the unit or on a data card. Press FIND to display a list of available nd categories. The default items are Waypoints, Cities, Tide Stations, and Transportation. If you press FIND and are in Pan Mode, the unit centers its search from the location where the map pointer is located.

Find Items List

Choose a waypoint from either the By Name or Nearest tab list.
BASIC OPERATION > FIND 1. From any page, press FIND. 2. Using the ROCKER, highlight the category from a list, and press ENTER. 3. For Waypoints and Cities, search using By Name or Nearest. Use the ROCKER to highlight a sub tab. For By Name, use the top eld to spell out the name or scroll down through the list. (See page 8 for steps on entering a name.) 1. From the Map page, use the ROCKER to pan to a location, and press FIND. 2. Using the ROCKER, highlight a category from the list, and press ENTER.
To Find an item from your current location:
The Find option also supports a nd from feature that allows you to center your search around an item you have just found. For example, you search for Restricted Areas and you nd a point named Anchoring Prohibited. If you press FIND again, From Anchoring Prohibited appears as the new search from the point. 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 nd from, and press the FIND key. Nearest To Boatcenters search from your boats current location. Nearest To Othercenters your search around another map location. Nearest To Nextcenters search from the next point of your active route. Nearest To Destinationcenters search from the last point of your active route.
To Find an item from other locations:

Current Go To

Destination

Bearing Bug

The Numbers Page allows for precision navigation to 1 degree of steerage. The default page displays three large numbers elds. You can customize the Numbers Page to display the size and number of elds along with the type data you want to see. See page 31 for instructions on changing the data elds. The Numbers Page provides a quick reference for the important data you want to display. By default, the page displays three large, user-selectable data elds showing a compass ribbon, speed, and current location coordinates. You can also choose to show the three data elds in large lettering for better readability or you can split any or all of the data elds to show four smaller data elds. See page 31 for detailed instructions on changing the data elds and layout of the Numbers Page.

Bearing Pointer

Compass Ring
The Pointer Page features a menu page that provides access to layout and data eld options. The data window, located at the top of the page, provides a user-selectable layout of various types of useful data. Each data eld can be congured to display several data options. The data window layout can be congured to display additional data elds and change the size of the data displayed. To display and select the Pointer Page options:
1. Press MENU. 2. Use the ROCKER to highlight an option, and press ENTER. For detailed instructions on changing the data elds and layout of the Pointer Page, see page 31.
MAIN PAGES > HIGHWAY PAGE
Numbers Page shown with middle data eld split into four elds
The Highway Page provides graphic steering guidance to a destination waypoint, placing greater emphasis on your straightline course, and the distance and direction you are off course. As you head toward your destination, the middle of the screen provides visual guidance to your waypoint on a moving graphic highway. Your present location is at the bottom center of the highway display. The line down the middle of the highway represents your course. As you navigate toward a waypoint, the highway movesindicating the direction you are off course. To stay on course, steer toward the center of the highway.
1. Press MENU, and press ENTER. 2. Highlight a data eld, and press MENU. 3. Highlight Split Numbers, and press ENTER. Four new data elds appear. Press QUIT to nish. 4. To return to the original conguration, repeat steps 1 and 2, but instead of Split Numbers, select either Merge Numbers or Defaults. Press QUIT to nish.

To split the data elds:

Steer toward the center of the highway or toward the black vertical bar on the compass ribbon to get back on course.
The four data elds at the top of the page provide additional user-selectable guidance information. Additionally, a compass ribbon shows your current heading along with a dark, vertical bar that indicates the direct bearing to the navigation point. When the dark, vertical indicator (or arrow) lines up with the lighter red bar in the middle, you are heading directly to the navigation point. Use the Highway Page as your primary navigation page in lieu of the Pointer Page when your main concern is following a dened course.

Re-evaluatereactivates the current route and selects the route leg closest to your current location as the active leg. The active leg denes the current from and to waypoints. To re-evaluate an active route:
1. From the Active Route Page, press MENU. 2. Using the ROCKER, highlight Re-evaluate, and press ENTER to recalculate.
To invert an active route:

MAIN MENU > GPS TAB

MAIN MENU
The Main Menu provides access to various waypoint, system, navigation, interface management, and setup menus. The 19 Menu tabs are divided into categories by function. The Main Menu is available from any page in the system, and is accessed by pressing MENU twice. See page 6 for additional instructions on changing settings and entering data.
1. Press up or down on the ROCKER to highlight a tab. The information for the highlighted tab automatically appears to the right. If you want to select any of the sub tab items, press right on the ROCKER, and press up or down to select individual items. 2. Either press MENU for additional submenu options, or press ENTER to make changes to the highlighted item. Press left on the ROCKER to get back to the Main Menu tabs list. 3. Press QUIT to return to the Main Menu.
To select a Menu tab from the Main Menu:

Main Menu Tabs

Main Menu

GPS Tab

The GPS tab provides a visual reference of satellite acquisition, receiver status, and accuracy. The status information provides an idea of what the receiver is doing at any given moment. The sky view and signal strength bars give you an indication of what satellites are visible to the receiver and whether or not they are being tracked. The signal strength is shown on a bar graph for each satellite, with the satellite number below. As the receiver locks onto satellites, a signal strength bar appears for each satellite in view. The progress of satellite acquisition is shown in three stages: No signal strength barsthe receiver is looking for the satellites indicated. Light signal strength barsthe receiver has found the satellite(s) and is collecting data. Dark signal strength barsthe receiver has collected the necessary data and the satellite(s) are ready for use.

Accuracy

Receiver Status DOP Differential Status
Sky View Signal Strength Bars
The status eld indicates a 2D or 3D, when the GPSMAP 182/182C has collected the necessary data from satellites to calculate a x. The unit then updates the location, date, and time. You can use the sky view to help determine if any satellites are being blocked, and whether you have a current location x (indicated by a 2D, 2D Differential, 3D, or 3D Differential in the status eld). The sky view shows a birds-eye view of the position of each satellite relative to the receivers last known location. The outer circle represents the horizon (north up), the inner circle 45 above the horizon, and the center point a position directly overhead. You can also set the sky view to a Track Up conguration, causing the top of the sky view to align along your current track heading.

The tide curve shows as a shaded area, where higher tides are taller (blue) and lower tides are shorter (red). The solid, horizontal line (with the current tide box on the left) indicates the current tide height. The gure to the left of the line shows the current tide level in feet. The Mean Lower Low Water (MLLW) appears as a solid, horizontal line near the bottom of the chart (This line only appears if the tide ranges to the zero value or below). The numbers directly below/above LCL and STA indicate the maximum/minimum levels, respectively. The four data elds below the chart, indicate event times and levels the tide changes starting in the upper left eld, going downward, then to the upper right and down again. To select the nearest tide station from you current location:
You can automatically search for the nearest station using a variety of search locations. You must select a location within 100 nm of a tide station. If you are not within this range, you see a message None Found. Use the Nearest To Other Find option and select a location closer to a tide station.
1. From the Tide tab, highlight the At eld, and press ENTER. 2. Highlight a tide station on the list, and press ENTER twice.
MAIN MENU > TRIP TAB 1. When the search results appear, press FIND, and highlight Tide Stations. 2. Press ENTER, and then press MENU. 3. Highlight Nearest To Other, and press ENTER. 4. Select a location on the map, and press ENTER. 5. A list appears showing the nearest tide stations. Highlight a station, and press ENTER twice. If the None Found message appears, repeat steps 1-4 until you nd a station. 1. Using the ROCKER, highlight the On eld, and press ENTER. 2. Enter the date, and press ENTER.
To select a tide station from the map:
Move the time bar on the tide chart in 5 minute increments to show tide heights at various times on the chart.
1. Press MENU, highlight Move Cursor, and press ENTER. 2. Press left or right on the ROCKER to change the time. Press QUIT when nished or press MENU, highlight Stop Moving Cursor, and press ENTER.
To see tide heights at various times on the chart:
To change the date for the tide chart:

To use the current date:

Press MENU, highlight Use Todays Date, and press ENTER.
Move the pointer to see tide heights at different times. Tide data shows in a black box when in pointer mode.

MAIN MENU > CELES TAB

Trip Tab
The Trip tab displays the Trip Odometer, Moving Average speed, Total Average speed, Maximum Speed, Stopped Time, Moving Time, Total Time, and Odometer. To reset the data, choose from Reset Trip, Reset Max Speed, Reset Odometer, or Reset All, and press ENTER.

Celes (Celestial) Tab

The Celestial tab displays celestial data for sun and moon rise/set, moon phase, and approximate sky view location of the sun and moon. The moon phase displays the current visible portion of the moon as a light color. You can display this data for your current location, a location from the map, or a Find item location. Use the current data, or select a different date and time.

Routes Tab

The following options are available from the Proximity sub tab of the Points tab: Delete Alarmremoves selected waypoint from proximity list. Delete Allremoves all waypoints from proximity list.
MAIN MENU > ROUTES TAB

Route Review Page

If you highlight a route name from the Route List and press NAV, the name automatically appears.
After you create a route, use the Route Review Page to review and modify the route displayed. To show the Route Review Page:
1. Press MENU twice, highlight the Route tab.
2. Highlight the route you want to review, and press ENTER.
To stop navigation of a route: To copy or delete a route:
Press NAV, highlight Stop Navigation, and press ENTER.
1. From the Route List, highlight the route you want to copy or delete using the ROCKER, and press MENU. 2. Choose either Copy Route or Delete Route and press ENTER. With OK highlighted, press ENTER again to conrm a deletion. Copy uses the same route name with an additional number, starting at 1, at the end of the route name.

Route List Menu

To delete all routes:
1. From the Route List, press MENU. 2. Highlight Delete All and press ENTER. With OK highlighted, press ENTER again to conrm the deletion.
54 GPSMAP 182/182C Owners Manual
Route Name Data Fields Route Points Data Totals
When you are on the Route Review Page, you can review the route points (waypoints or map items) one at a time from the list. To review individual route points:
1. Highlight a point, and press ENTER. 2. On the waypoint review window, you can choose Next (highlight the next point on the route list), Show Map (show the point on a map window), or Delete (permanently delete the waypoint from the unit), and press ENTER.
The Route Review Page also allows you to enter your own 15character name for any listed route. By default, the name includes the rst and last waypoints in the route. To enter a custom route name:
1. From the Route Review Page, highlight the name eld, and press ENTER to begin editing. 2. Use the ROCKER to enter a name. Press ENTER when nished.
When you are back on the route point list, the next point in the route is automatically highlighted. This allows you to review each point on the route by pressing ENTER repeatedly.

Advanced NMEA settings to adjust the NMEA output are available if you have one of the ports set to NMEA In/NMEA. Advanced NMEA settings enable/disable certain sentences and adjust the number of Lat/Lon output precision digits. Settings affects both Port 1 and Port 2 NMEA outputs.
1. From the Comm tab, press MENU, highlight NMEA Setup, and press ENTER. 2. Highlight an option, and press ENTER. 3. Use the ROCKER to select the setting, and press ENTER. Press QUIT to return to the Comm tab.
To adjust the NMEA output:
Advanced NMEA Output Setup Page
To restore the Serial Data Format settings back to the default Garmin Data Transfer:
From the Comm tab, press MENU, highlight Defaults, and press ENTER.
If Garmin DGPS or RTCM In/NMEA Out format is selected, additional elds are provided to control a Garmin differential beacon receiver directly from your GPSMAP 182/182C. The unit can automatically scan for the DGPS beacon signal, or you can enter the beacon frequency and bit rate on the unit and the information is used to tune the beacon receiver.
1. With the unit set to Garmin DGPS or RTCM In/NMEA Out, use the ROCKER to highlight the Beacon eld, and press ENTER. 2. Highlight Scan, and press ENTER. The numbers in the Frequency eld change as the unit scans from 284 kHz to 325 kHz, 200 bit rate, then 100 at 6-second intervals.
Status Field SNR and Distance shows data when signal is received.
To have the unit automatically scan for a frequency:
NOTE: The DGPS beacon transmitters are operated by the U.S. Coast Guard (or similar government agency in other countries), and are responsible for their accuracy and maintenance. For DGPS transmitter problems or to nd the most updated list of frequencies and coverage areas, contact your local USCG, or see their Web site at http://www.uscg.mil/.

To restart the scan:

Press MENU, highlight Restart Scan, and press ENTER.
MAIN MENU > ALARM TAB 1. With the unit set to Garmin DGPS or RTCM In/NMEA Out, use the ROCKER to highlight the Beacon eld, and press ENTER. 2. Highlight User, and press ENTER. 3. Highlight the Frequency or Bit Rate eld, press ENTER, enter a frequency or bit rate, and press ENTER when nished.
To manually enter a frequency and bit rate:

Alarm Tab

To calibrate the water speed:
NOTE: If the boat is not moving fast enough or the speed sensor is not outputting a speed, the message Boat Is Not Moving Fast Enough To Calibrate appears at the bottom of the screen. Either verify the speed sensor wheel is moving, or safely increase boat speed. If there is a problem with the speed sensor/unit, or if a speed senor is not installed, a Water Speed Sensor Is Not Working message appears at the bottom of the screen. Check connections of speed sensor cables.
Page Defaultsrestores the Sonar Page settings to the original factory setup.
1. Press MENU. 2. Highlight Page Defaults, and press ENTER.
To restore default settings to the Sonar Tab:
Press MENU. With Page Defaults highlighted, press ENTER.

Understanding Sonar

The transducer mounted on your vessel transmits sound waves toward the bottom of a lake, stream, or seabed in a cone-shaped pattern. When a transmitted sound wave strikes an underwater objectsuch as the bottom, a piece of structure, or a shsound is reected back to the transducer. The transducer collects the reected sound waves and sends the data to the GPSMAP 182/182C to be processed and displayed. The underwater data is shown on the Sonar display in the order that it is returned: rst returned is the rst on the display. Generally speaking, if the only thing between the transducer and the bottom is water, the rst strong return comes from the bottom directly below the transducer and sets the bottom level. Weaker secondary returns provide the detailed data. Stronger returns display in darker colors, with red being the strongest return.
Understanding the Sonar Display
One of the rst things to understand about sonar is that the transducer sends a beam down to the bottom of the water, much like the beam of a ashlight. The beam starts small near your vessel and expands as it gets to the bottom. Refer to Transducer Coverage for more detailed information. The Sonar Page does not display a three-dimensional representation of the underwater environment; the display is in two-dimensions, much like if you took a picture of an aquarium. Only the depth of the item in the water is displayed. The Sonar display does not show you where an item is located horizontally in the water, as shown in the drawings below. The sh is not directly above the tree in reality, but it can look like they are on the Sonar Page.

Tree Sonar Display 89

Aerial View of the Water GPSMAP 182/182C Owners Manual
USING SONAR > UNDERSTANDING SONAR

Transducer Coverage

The area covered by the transmitted sound waves is determined by the cone angle of the transducer and the water depth. The wide cone angles (40) associated with low frequencies (50 kHz) provide a large coverage area for nding sh within a coverage width that is approximately 2/3 of the water depth. However, this also means that wide cone angles produce less bottom detail and resolution. As shown in the drawing on the near right, the 40 cone angle produces a coverage area of approximately a 20-foot diameter circle at a 30-foot depth. The narrow cone angles (10) associated with the high frequencies (200 kHz) provide better bottom resolution and crisper detail, but cannot show a large coverage area for nding sh. The 10 cone angle provides a coverage width that is approximately 2/10 of the water depth. As shown in the drawing on the far right, the 10 cone angle produces a coverage area of approximately a 6-foot diameter circle at a 30-foot depth. Dual frequency mode combines both frequencies to get the best coverage area and contour/depth readings.

NOTE: If you are using the GPSMAP 182/182C outside of the U.S.A., we recommend you turn off WAAS for the most accurate location x.
What is Differential GPS (DGPS)?
The U.S. and Canadian governments (among others) have set up Differential GPS (DGPS) stations to transmit correction signals. They are operational in coastal areas and on many navigable river systems. The DGPS system is available for use without a fee. Refer to the U.S. Coast Guards Web site, http://www.uscg.gov/ for locations and the status of the differential sites. Using DGPS requires additional equipment.
APPENDIX > WHAT IS MMSI?
What is a Maritime Mobile Service Identity (MMSI)?
Maritime Mobile Service Identity (MMSI) basically allows a VHF radio to act like a phone. In order to make a call on a phone, you rst need a phone number to dial. The 9 digit MMSI number acts like a phone number when used in a Position Report and as a unique identier to the Coast Guard when used in an emergency Distress Call. In order to obtain a Maritime Mobile Service Identity (MMSI) number, users must register their VHF radio with the FCC (Form 605). Garmin does not supply this number!
U.S Non-Federal User: Commercial users, or those who travel outside the U.S. or Canada, must apply for a ship station license, or an amendment to a ship station license. To nd out if you require a Ship Station license contact: http://wireless.fcc.gov/marine/ fctsht14.html. If your vessel requires licensing by the FCC you obtain a MMSI during the application/licensing process when you le FCC Forms 159 and 605. U.S. Federal User: Federal users can obtain MMSI assignments from their agency radio spectrum management ofce. These procedures are currently under review by the NTIA (National Telecommunications and Information Administration). Outside the U.S.: Users can obtain an MMSI assignment from their telecommunications authority or ship registry, often by obtaining or amending their ship station license. In Canada: Industry Canada is responsible for assigning MMSI numbers to commercial and recreational vessels. Information is available at the following web site: http://apollo.ic.gc.ca/english/ mmsi.html. For information regarding MMSIs visit: http://www.navcen.uscg.gov/marcomms/gmdss/mmsi.htm.
How are MMSI Assignments Obtained?
Non-commercial users (for example, recreational users who remain in domestic waters and only carry VHF, EPIRB (Emergency Position Indicating Radio Beacons), and Radar) are not required to have a FCC ship station license. The FCC and Coast Guard have authorized some second and third party vendors to assign MMSI numbers. This service is limited to registering recreational vessels only. To receive information on how to obtain a recreational MMSI number contact: http://www.uscg.mil/rescue21/links/mmsi.htm or http://wireless.fcc.gov/marine/.

APPENDIX > NAVIGATION TERMS

Navigation Terms

Avg Speedthe average of all second-by-second speed readings since last reset. Bearing (BRG)the compass direction from your current location to a destination. Coursethe course between the active from and to waypoints. Depththe depth below transducer. This eld is active only if a transducer is connected to the GPSMAP 182/182C. Distance (Dist)the distance from the current location to a destination. Dist to Destinationthe distance from the current location to a Go To destination, or the nal waypoint in a route. Dist to Nextthe distance from current location to a Go To destination, or the next waypoint in a route. DOP (Dilution of Precision)reects the quality of the GPS signals and satellite geometry. Elevationheight above mean sea level (MSL). ETA (Estimate Time of Arrival)the time you estimate to reach your destination waypoint, based on current speed and track.
ETA at Destinationthe time you estimate to reach a Go To destination or the nal waypoint in a route. ETA at Nextthe time you estimate to reach a Go To destination or the next waypoint in a route. Fuelthe fuel required to travel from current location to the indicated route waypoint. GPS Accuracyestimated accuracy of the GPS position. Leg Distthe distance between two route waypoints. Leg Fuelthe fuel required to travel from a route waypoint to the next waypoint (in sequence) in the route. Leg Timethe time required to travel from a route waypoint to the next waypoint (in sequence) in the route. Max Speedthe maximum second-by-second speed recorded since last reset. Moving Average Speedaverage speed while the unit is moving. Moving Trip Timertotal time the unit has been moving. Odometera running tally of distance travelled, based on the distance between second-by-second position readings. Off Coursethe distance you are off course in either direction, left or right.
Pointeran arrow pointing to your destination. Speedthe current velocity at which you are travelling, relative to a ground position. Also referred to as ground speed. Sunrisethe current days time of sunrise. Sunsetthe current days time of sunset. Time Of Daythe current time. Time Tothe estimated time required to reach a Go To destination, or the next waypoint in a route. Also known as estimated time en route. Time to Destthe estimated time required to reach a Go To destination, or the nal waypoint in a route. Time to Nextthe estimated time required to reach a Go To destination, or the next waypoint in a route. To Coursethe recommended direction to steer to reduce course error or stay on course. Provides the most efcient heading to get back to the course and proceed along your route. Trackthe direction of movement relative to a ground position. Also referred to as ground track. Trip Odometera running tally of distance travelled since last reset. See also Odometer.

TracBack 14 Activate 16 Track Logs Clear 15 Save 15 Track Tab 59 Active 59 Saved 60 Track Up 64 Transducer 90 Trip Planning 58 Trip Tab 47 Proximity 52 Reviewing 11 Underwater 84 Waypoint Lists Proximity 52 User 49 Whiteline 82, 91 Wide Area Augmentation System 41, 102 Wiring Installation 98
Underwater Waypoints 84 Units Tab 70 Unit Defaults 70 WAAS 41, 102 Disable/Enable 42 Waterproof iv Water Speed 87 Water Temperature Alarm 77 Waypoints Creating 8 Creating Graphically 9 Editing 11 Enter/Mark 8 Move 12 GPSMAP 182/182C Owners Manual
Zoom Keys 5 Zoom Range 29 Zoom Settings 29
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Copyright 2005 Garmin Ltd. or its subsidiaries Garmin International, Inc. 1200 East 151st Street, Olathe, Kansas 66062, U.S.A. Garmin (Europe) Ltd. Unit 5, The Quadrangle, Abbey Park Industrial Estate, Romsey, SO51 9DL, U.K. Garmin Corporation No. 68, Jangshu 2nd Road, Shijr, Taipei County, Taiwan www.garmin.com Part Number 190-00584-00 Rev. A