Garmin GPSMAP 230 manual

GPSMAP 230 ® OWNER’S MANUAL AND REFERENCE ZOOM update on 230.qxd 1/12/00 11:22 AM Page 1[...]

© 1999 - 2000 GARMIN Corporation 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 9AQ, U.K. Tel. 44/1794.519944 Fax 44/1794.519222 GARMIN (Asia) Corporation No. 68, Jangshu 2nd Ro[...]

GARMIN TM , G-chart TM , AutoLocate TM , TracBack TM and PhaseTrac12 TM are trademarks of GARMIN Corporation and may only be used with permission. All rights are reserved. i INTRODUCTION Foreword Help us better support you by completing our on-line registration today! Have the serial number of your GPSMAP 230 handy and con- nect to our website (www[...]

CAUTION The GPS system is operated by the United States government, which is solely responsible for its accuracy and maintenance. The system is subject to changes which could affect the accuracy and performance of all GPS equipment. Although the GARMIN GPSMAP 230 is a precision electronic NAVigation AID (NAVAID), any NAVAID can be misused or misint[...]

iii INTRODUCTION Capabilities Designed for detailed electronic charting and simple operation, the GARMIN GPSMAP 230 is a powerful navigation device that can help guide you in water- ways around the world: Precision Perfor mance • 7” High-contrast 4-level gray LCD screen • PhaseT rac12 TM receiver tracks and uses up to 12 satellites simultaneo[...]

iv INTRODUCTION Warranty LIMITED WARRANTY GARMIN Corporation warrants this product to be free from defects in materials and manufacture for one year from the date of purchase. GARMIN will, at its sole option, repair or replace any components that fail in normal use. Such repairs or replacement will be made at no charge to the customer for parts or [...]

v INTRODUCTION Preface Congratulations on choosing one of the most advanced marine navigation sys- tems available! The GARMIN GPSMAP 230 combines the proven performance of GARMIN GPS with powerful G-Chart electronic charting for detailed cartography and plotting wherever you cruise. T o get the most out of your new navigation system, take the time [...]

INTRODUCTION Packing List vi 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 see your GARMIN dealer immediately . Standard Package: • GPSMAP 230 Unit • External Antenna and 30’ cable • Power/Data Cable • Mounting Bracket and Knobs ?[...]

vii GETTING STARTED Table of Contents Foreword ...............................................................................................................i Cautions ...............................................................................................................ii Capabilities/Warranty .............................................[...]

Section 3: Map Page .......................................................................................22-29 Map Page Overview & Data Window . . . . . . . . . . . . . . . . . . . . . . . . . . . .22 Map Modes Position Mode & Cursor Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23 Using the Cursor . . . . . . . . . . . [...]

Section 8: Routes ...........................................................................................47-54 Creating a Route On Map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .47 Reviewing and Editing Routes On Map . . . . . . . . . . . . . . . . . . . . . . . . . . .48 Route Edit Mode . . . . . . . . . . . . . .[...]

INTRODUCTION Keypad Usage M P J G O T Q I H R Scrolls the main pages in sequence and returns display from a submenu page to a main page. Captures your present position and displays the mark position window. Returns display to a previous page or restores a data field’s previous value. Decreases the scale of the moving map and highway pages. Increa[...]

1 GETTING STARTED Initialization Initializing the Receiver The first time you power up your new GPSMAP 230 is an important step in get- ting the best possible GPS performance. The receiver must be given an opportunity to collect satellite data and establish its present position. T o ensure proper initializa- tion, the GPSMAP 230 is shipped from the[...]

AB The select initialization window will appear , with the ‘select from map’ option highlighted. 1. Press T to initialize the receiver from the built-in worldwide map. The Map Page will appear , prompting you to select your appr oximate present posi- tion with the map cursor . 1. Use the R keypad to move the map cursor to a location close to yo[...]

A B GPSMAP 230 Getting-Started T our The GARMIN GPSMAP 230 is a powerful electronic charting/navigating system that provides detailed chart coverage and convenient contr ol of many advanced features right fr om the map display . This tour is designed to take you thr ough the basic pages and functions of the system using the simulator mode. Once you[...]

AB The GPSMAP 230’ s Satellite Page pr ovides a visual reference of satellite acqui- sition and receiver status, with a signal strength bar graph and a satellite sky view in the center of the page. Each page of the GPSMAP 230’ s system also features an options page, which gives you access to other functions and features that relate to the speci[...]

5 GETTING STARTED Page Sequence & Position Page The Satellite Page is one of four main pages used in the GPSMAP 230’ s system. All four pages are linked together in a simple chain, which allows you to scr oll through the pages in either dir ection using the J and Q keys. T o continue the tour , let’ s move on to the next page, the Position [...]

AB To mark your present position: 1. Press the M key. The mark position page will appear, with a default three-digit waypoint name and symbol. 2. Use the R keypad to highlight the waypoint name field (001) and press T . 3. Press the LEFT ARROW of the R keypad to clear the name field. 4. Use the R keypad to enter the name ‘DOCK’, using the UP an[...]

A B The GPSMAP 230’ s Map Page combines digital chartplotting with a user -selec- table display of navigation data and a built-in worldwide database to 64 nm. It will also be the page you use most to create and edit waypoints and r outes. Before we take off on our practice r oute, let’ s take a brief look at its various features and displays. T[...]

AB Using the Map Cursor W orking from the Map Page is a simple pr ocess that centers around the use of the cursor . Controlled by the R keypad, the cursor is an important tool that can be used to pan to other map locations, mark and edit waypoints and routes, and r eview position data of on-screen navaids and waypoints. T o get a feel for using the[...]

A B Going to a Destination GPS is all about marking positions as waypoints and navigating to them using the receiver’ s steering guidance and map displays. W e’ve already seen how to use the M key to store our present position, so it’ s time to move on to the fun part— going to a destination. The G key , located on the left side of the keyp[...]

AB A data field at the top of the page will now display the bearing and distance to the second route waypoint. T o get started, let’ s enter a speed for our vessel, which we can do from the ‘Setup Simulator?’ listing on the options page. The setup sim- ulator page is also available fr om any other page in the main page sequence. To enter a bo[...]

A B Once the cursor is over the TOUR3 waypoint, you’ll notice that the waypoint symbol and name will become highlighted, and the data field at the top of the page will display the waypoint name, the range and bearing from your pr esent position, and the coordinates for the waypoint. To review the waypoint page for a selected waypoint: 1. Press th[...]

AB Now that we’re navigating to an actual destination, let’ s move on to the next page of the GPSMAP 230 system, the Navigation Page : 1. Press the J key. The Navigation Page provides graphic steering guidance to your destination. The bearing (BRG) and distance (DIS) to the destination, with your curr ent course (COG) and speed over ground (SOG[...]

A B 13 GETTING STARTED Using the Navigation Page Whenever the GPSMAP 230 is in simulator mode, you can adjust your speed and course from the Navigation Page using the R 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: 1. [...]

AB 14 Now that you’ve seen the four main pages, let’ s review the active r oute page , which appears in the main page sequence whenever you are navigating a r oute: 1. Press the J key. The active route page shows each waypoint of the active r oute in sequence, with the waypoint name, distance and estimated time enroute to each waypoint dis- pla[...]

A B As you’ve seen, the GPSMAP 230’ s main pages provide vital status, position, navigation and map information. The last page we’ll cover in the tour is the main menu page, which provides access to the GPSMAP 230’ s waypoint, route and planning functions, as well as various operational and navigation setup features. The Main Menu is availa[...]

To turn the GPSMAP 230 off: 1. Press and hold the P key for about 3 seconds, until the screen is blank. Thank you for choosing the GARMIN GPSMAP 230 navigation system. W e hope that it will be a useful tool for you wherever you travel. 16 GETTING STARTED Power Off ZOOM update on 230.qxd 1/12/00 11:22 AM Page 16[...]

A B Satellite Page The GPSMAP 230 Satellite Page provides a visual reference of various r eceiver functions, including current satellite coverage, receiver operating mode and cur- rent receiver accuracy . The status information will give you an idea of what the receiver is doing at any given moment. The sky view and signal strength bars give you an[...]

AB Receiver Status, EPE & DOP Receiver status is indicated at the top of the page, with the current estimated position error (EPE) and dilution of precision (DOP) to the left of the sky view . DOP is an indication of satellite geometry quality measured on a scale of one to ten (lowest numbers the best, highest numbers the poorest). EPE uses DOP[...]

A B Satellite Page Options The GPSMAP 230’ s Satellite Page features a context-sensitive options page that provides access to functions and featur es relating to the Satellite Page. To display the Satellite Page options: 1. Press O . To select a menu option: 1. Highlight the desired option and press T . The following options are available: • In[...]

Position Page The GPSMAP 230 Position Page shows you where you are, what dir ection you are heading and how fast you are going. The top of the page featur es a graphic compass tape to indicate the direction you’re heading (while you’r e moving), and four user selectable data fields: course over ground (COG), speed over gr ound (SOG), distance t[...]

A B Position Page Options The GPSMAP 230’ s Position Page features a context-sensitive options page that provides access to functions and featur es relating to the Position Page. To display the Position Page options: 1. Press O . To select a menu option: 1. Highlight the desired option and press T . The following options are available: • Reset [...]

AB GPSMAP 230 Map Page The GPSMAP 230’ s Map Page provides a comprehensive display of electr onic cartography , plotting and navigational data. The map display shows your boat on a digital chart, complete with geographic names, navaids, depth contours and a host of other chart features. It also plots your track and displays any r outes and waypoi[...]

A B Map Modes The map display uses the cursor keypad and a set of hard keys to contr ol most map display functions. The I and H keys, combined with the R keypad, let you select zoom ranges and move the cursor . T wo basic map operating modes, position mode and cursor mode, determine what cartography is shown on the map display . Position mode pans [...]

AB Using the Cursor The cursor allows you to pan away from your pr esent position and scroll to other map areas ar ound the world (even outside of your current G-chart TM cov- erage). As you pan past the edge of the current map display , the screen will actively scroll forwar d to provide continuous map coverage. To move the cursor: 1. Press the R [...]

A B Selecting Map Scales The map display has 16 available range scales from 1/8th to 4096 n.m. (1/4 to 7500km). The map scale is controlled by the I and H keys, with the current scale displayed at the bottom of the data window . To select a map scale: 1. Press the up H key to zoom out and the down I key to zoom in. The GPSMAP 230’ s system has a [...]

AB Map Page Options The GPSMAP 230 Map Page is designed to be a flexible tool that can be cus- tom-tailored to your exact navigation needs. The map options page pr ovides access to many of the features and functions that will help you configure the Map Page to your own preferences. To display the Map Page options: 1. Press O . To select a menu opti[...]

A B • Configure the Map?— allows you to determine what chart features are displayed on a particular map scale to prevent excessive clutter. The map configuration page features an on/off grid with a list of chart features down the left side. The zoom scales are displayed across the top of the grid with the chart scale currently in use also indic[...]

AB The map configuration options page also features a map calibration function that allows you to calibrate the map display your exact physical surroundings or to cor- rect data from older charts. Before using the map calibration function, check to make sure that your map datum selected on the GPS matches the datum on the chart you are using (see p[...]

A B • Setup Page Display?— allows you to specify the number of fields displayed in the data window section of the map page. A graphic compass tape or CDI scale may also be displayed. The following options are available: • 2 Fields • 2 Fields & Compass • 2 Fields & CDI • 4 Fields • 4 Fields & Compass • 4 Fields & CDI [...]

GPSMAP 230 Navigation Page Whenever a GOTO, MOB, T racBack or route has been activated, the GPSMAP 230 will provide digital and graphic steering guidance to the destination with the Navigation Page. The top half of the nav page features four user -selectable data fields that display the bearing (BRG) and distance (DIS) to waypoint, along with your [...]

A B As you head toward your destination, the highway will move to indicate your progr ess to the waypoint and which direction you should steer to stay on course. If you are navigating a r oute, the Navigation Page will show each route waypoint in sequence, with the active leg indicated by the white portion of the highway . Nearby waypoints not in t[...]

AB The following options are available for the Navigation Page: • Change Data Fields?— allows you to define the data displayed in any of the six user-selectable data fields. Ten data options are available: • BRG– bearing to active wpt • DIS– distance to active wpt • SOG– speed over ground • COG– course over ground • ETE– est[...]

A B Main Menu Page The GPSMAP 230’ s Main Menu Page provides access to various waypoint, sys- tem, navigation, and interface management and setup menus. The Main Menu Page is available from any page in the GPSMAP 230’ s system, and is accessed through the O key . To access the Main Menu Page: 1. Press O twice. The 11 submenus are divided into c[...]

AB Creating and Using W aypoints The GARMIN GPSMAP 230 stores up to 250 alphanumeric waypoints with a user -defined icon and comment available for each waypoint. W aypoints can be created using three basic methods: • M key– used primarily for marking your present position, the M key also provides options that allow you to select a map or navaid[...]

A B The MARK key may also be used on the Map Page to mark the cursor position or an on-screen navaid. T o mark a navaid, select the desired navaid with the cur- sor . The GPSMAP 230 will use the navaid text shown on the cartography as the default comment. To mark the cursor or navaid position with the M key: 1. Use the R keypad to move the cursor t[...]

AB Creating W aypoints On Map W aypoints may also be quickly created fr om the map display , which allows you to “point and shoot” at any map position to create a new waypoint. To create a new waypoint on map: 1. Use the R keypad to move the cursor to the desired map position. If you want to create the new waypoint at an on-screen navaid, highl[...]

A B Reference W aypoints A new waypoint may also be created without knowing position coor dinates by entering its range and bearing from an existing waypoint or your pr esent position. The GPSMAP 230 will then calculate the position coordinates for you, using the reference selected. To create a new waypoint using a reference waypoint: 1. Select the[...]

AB Reviewing & Editing W aypoints By T ext Once you have created and stored a waypoint, it may be modified, r eviewed, renamed, or deleted at any time thr ough the waypoint definition page. The way- point definition page is available for any stored waypoint by highlighting the desired waypoint fr om the map display or selecting it from any wayp[...]

A B W aypoint Definition Page Options The waypoint definition page also features an options page that allows you to edit the selected waypoint on the map display , rename the selected waypoint or delete the waypoint from memory . To display the waypoint definition page options: 1. Press the O key. To review/edit the selected waypoint from the map d[...]

AB W aypoint Submenus The GPSMAP 230’ s Main Menu Page features four waypoint submenus that let you manage a large number of waypoints quickly and ef ficiently . The submenus also provide a continuously updated near est waypoints list and a proximity way- point alarm function that can be used to define an alarm circle ar ound submerged hazards, s[...]

A B Proximity W aypoints The Proximity W aypoints list lets you define an alarm circle ar ound a stored waypoint position, and can be used to help you avoid reefs, r ocks, or restricted waters. Up to nine waypoints may be listed, with a maximum alarm radius of 99.99 nautical or statute miles or kilometers. If a proximity alarm cir cle overlaps with[...]

AB Create W aypoint The third waypoint submenu available fr om the Main Menu Page is the ‘Create W aypoint’ submenu, which allows you to create a new waypoint by manually entering coordinates. Instructions for using the cr eate waypoint submenu are pr o- vided on page 36. W aypoint List The last waypoint category available from the Main Menu Pa[...]

A B Going to a Destination The GPSMAP 230 provides four ways to navigate to a destination: GOTO, MOB, T racBack and route navigation . The most basic method of selecting a destination is the GOTO function, which lets you select a waypoint as your desti- nation and quickly sets a direct course fr om your present position. The G key can be used in th[...]

AB GOTO Key Options The GOTO options page provides a list of additional GOTO options that let you start a T racBack route, select a destination waypoint from the near est way- points list, select a route to navigate, or cancel the curr ent GOTO destination. To display the GOTO options: 1. Press O . To select a menu option: 1. Highlight the desired [...]

A B MOB The GPSMAP 230’ s man overboard function (MOB) lets you simultaneously mark and set a course to a position for quick response to emer gency situations. To activate the MOB function: 1. Press the B key. 2. Press the T key to confirm and begin navigating to the MOB position. Once a MOB has been activated, a MOB icon will appear on the map d[...]

AB To activate a TracBack route: 1. Press the G key, followed by the O key. 2. Highlight the ‘Start TracBack?’ option and press T . Once a T racBack has been activated, the GPSMAP 230 will take the track log currently stored in memory and divide it into segments called “legs”. Up to 30 temporary waypoints (e.g. T001) will be created to mark[...]

A B Routes The last way to navigate to a destination is to create a user -defined route. The GARMIN GPSMAP 230 system lets you create and store up to 20 r eversible routes (numbered 1-20), with up to 30 waypoints each. Routes can be created and modi- fied right from the Map Page, allowing you to see each r oute on-screen as you cre- ate, review , m[...]

AB Once a route has been cr eated on the map (and the Q key has been pressed to finish), the map display will automatically enter the route r eview mode. The arrow pointer will be r eplaced by the map cursor , located at the last route way- point. The route edit mode allows you to r eview and modify the route displayed through a pop-up window menu [...]

A B The GPSMAP 230’ s route edit mode also allows you to insert a new r oute way- point in any route leg using the map cursor . To insert a new waypoint between two existing route waypoints: 1. Use the cursor to select the leg you want to insert the new waypoint in (the route line will change to a dotted line when the leg is selected) and press T[...]

AB To insert a new waypoint before the selected route waypoint: 1. Highlight the ‘Insert?’ option and press T . 2. Enter the name of the new waypoint using the R keypad, or press O to select the new waypoint from the nearest list, waypoint list, or map display. 3. Press T to finish. To remove the selected route waypoint: 1. Highlight the ‘Rem[...]

A B Route List Page The GPSMAP 230’ s route list page displays all the routes curr ently stored in memory in numerical order , with the r oute number and comment displayed. Route 00 is always reserved for the T racBack route, while routes 1-20 serve as storage routes (r oute 20 is stored as the GPSMAP tour route, which may be deleted at any time)[...]

AB Route List Page Options (cont.) • Clear Route?— allows you to clear all waypoints from the selected route. To clear the selected route: 1. Highlight the ‘Clear Route?’ option and press T . 2. Press T to confirm the clear route warning. • Copy Route?— allows you to copy the waypoints of a selected route to another route. The route cop[...]

Active Route Page Whenever you have activated a route in the GPSMAP 230 system, the active route page will appear in the main page sequence. The active r oute page shows each waypoint of the active route, with the waypoint name, desir ed track, cumula- tive distance and ETE or ET A for each waypoint from your pr esent position. The current destinat[...]

Active Route Page Options The following options are available fr om the active route page: • Invert Route?— activates the active route in reverse order and begins navigation. • Activate Route?— reactivates the active route and selects the route leg closest to your current position as the new active leg. • Edit On Map?— allows you to edi[...]

A B T rack Log Submenu The Main Menu Page’ s track submenu lets you specify whether or not to recor d a track plot (an electronic r ecording of your path) and define how it is r ecorded. It also provides an indicator of the track memory used and selects functions to clear the track memory and start a T racBack route. The following functions ar e [...]

A B T rip and Fuel Planning The GPSMAP 230’ s trip and fuel planning submenu lets you plan and r eview distance, fuel, and ETE/ET A information between any two waypoints; your pre- sent position and a stored waypoint; or any part of a stored r oute. Sunrise and sunset information is also provided. T wo planning modes ar e available: point-to- poi[...]

A B The route planning mode lets you calculate the same planning information for any route stor ed in memory , in leg or cumulative leg, or route totals. To use the route planning mode: 1. Highlight the ‘Trip & Fuel Planning’ option from the Main Menu and press T . 2. If the plan field is not set to ‘Route’, press O and select it from t[...]

AB The fuel and trip planning submenu also allows you to calculate the sunrise and sunset times for your present position or any waypoint for a selected date. To use the sunrise/sunset planner: 1. Highlight ‘Trip & Fuel Planning’ option from the main menu and press T . 2. Highlight the first waypoint field and press T . Press the left arrow[...]

• Local/UTC lets you choose to display the date and time in UTC (Greenwich Mean Time) time or local time offset from UTC time. The default setting is local with a ‘0’ offset. (If you are boating in the United States, be sure to enter a negative time indi- cator in front of the appropriate time offset for your location). • Tone Selection let[...]

AB Navigation Setup The navigation setup submenu is used to select a variety of navigation informa- tion including: position format, units of measure, and heading prefer ences. This submenu is also used to select map datums, set the CDI scale and adjust the built- in velocity filter . The following options are available: • Position Format lets yo[...]

A B 61 • CDI Steer To allows you select a steer-to-center or steer-to-D-Bar orientation for graphic steering guidance. The steer-to-center selection displays your position as the vertical line on the scale, and your desired track as the center of the scale. The steer to D-Bar option displays your position as the center of the scale, with the desi[...]

Timers & Alarms Setup The timer & alarms submenu is used to control various alarm/timer settings. • Timer sounds an alarm when an entered interval (up to 99:59:59) has expired, or provides a continuous running clock timer to 99:59:59. To use the countdown timer: 1. Select the ‘Count Down’ menu option. 2. Enter the desired time interva[...]

Input/Output Submenu The Input/Output submenu lets you control interface settings for connecting external NMEA devices, a DGPS receiver , or a personal computer . The ‘Input/Output Format’ field, at the top of the page, lets you specify one of seven interface formats: Data Transfer is a proprietary interface that allows you to exchange data suc[...]

Using NMEA & DGPS Interface Settings If you are using an NMEA interface format, the NMEA format must be specified in the NMEA format field that will automatically appear when an NMEA option is selected. The appropriate baud rate will be set automatically . To select an NMEA format: 1. Select a NMEA IN/OUT format from the options page. 2. Highli[...]

Installing & Removing G-chart Cartridges The GARMIN GPSMAP 230 system uses G-chart offshor e or inland cartography to display digital charts on-screen. G-chart cartridges are installed in the car d slot located at the bottom right of the GPSMAP unit. G-chart cartridges may be installed or removed at any time, whether the unit is on or of f. To [...]

Using G-chart Cartography Once a G-chart cartridge has been inserted, the map coverage outlines for the cartridge will automatically appear on-screen. Keep in mind that the display will not automatically scroll to the map ar ea or zoom to a level where you can see the coverage outlines. If you do not immediately see the outlines, scroll the cursor [...]

67 SECTION A APPENDIX Installation Installing the GPSMAP 230 The GPSMAP 180 must be properly installed accor ding to the following instruc- tions to get the best possible performance. The GPS antenna should be installed first, followed by the display unit. T o complete the installation, you’ll need the appropriate fasteners for your installation,[...]

Mounting the GPSMAP 230 Unit The GPSMAP 230’ s water -resistant case is suitable for mounting in exposed locations or at the nav station. The unit comes with a mounting bracket and a gimbal mount to allow surface or overhead mounting. When choosing a location for the display unit, make sure you consider the following conditions: • There should [...]

69 SECTION A APPENDIX Installation T o flush mount the GPSMAP 230 1. Remove the four M5 screws from the back of the unit and remove the mounting bracket . 2. Using the mounting template provided in the box, determine the location where you want to mount the unit and tape the template in place. 3. Using a hammer and center punch, mark the centers of[...]

DGPS corrections are accepted in RTCM-104 v. 2.0 format through the NMEA In (BROWN) harness lead. The GARMIN GBR 21 is the recommended beacon receiver for use with the GPSMAP system.Other receivers with the correct RTCM format may be used, but may not correctly display status or allow tuning control from the GPSMAP unit. 70 SECTION B APPENDIX Wirin[...]

GPSMAP 230 Specifications PHYSICAL Case: Gasketed Construction Size: 7.55”H x 7.7”W x 2.57”D (19.18 cm x 19.56 cm x 6.53 cm) Weight: 2.0 Lbs (.907 Kg) Temperature Range: 5º to 158ºF (-15º to 70ºC) PERFORMANCE (GPSMAP 230) Receiver: 12-channel PhaseTrac12 Acquisition Time: Approx. 15 seconds (warm) Approx. 45 seconds (cold) Approx. 5 minut[...]

Alarm Clock— The alarm clock has sounded. Anchor Drag Alarm— You have drifted out of the specified distance range. Approaching— You are less than one minute away from reaching a destination waypoint at your present speed over ground. Arrival At— You have arrived at the destination waypoint. Can’t Change An Active Waypoint— You have atte[...]

Oscillator Needs Adjustment— The GPSMAP 230 has detected excessive drift in its internal oscillator, which may result in longer acquisition times. Take the unit to an authorized GARMIN service center for adjustment. Poor GPS Coverage— The GPSMAP 230 cannot acquire the necessary number of satellites to compute a position. Power Down and Re-init?[...]

Adindan Adindan- Ethiopia, Mali, Senegal, Sudan Afgooye Afgooye- Somalia AIN EL ABD ‘70 AIN EL ANBD 1970- Bahrain Island, Saudi Arabia Anna 1 Ast ‘65 Anna 1 Astro ‘65- Cocos I. ARC 1950 ARC 1950- Botswana, Lesotho, Malawi, Swaziland, Zaire, Zambia, Zimbabwe ARC 1960 Kenya, Tanzania Ascnsn Isld ‘58 Ascension Island ‘58- Ascension Island As[...]

Corrego Alegr Corrego Alegre- Brazil Djakarta Djakarta (Batavia)- Sumatra Island (Indonesia) Dos 1968 Dos 1968- Gizo Island (New Georgia Islands) Easter Isld 67 Easter Island 1967 European 1950 European 1950- Austria, Belgium, Denmark, Finland, France, Germany, Gibraltar, Greece, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Swit[...]

NAD27 Greenland North American 1927- Greenland (Hayes Peninsula) NAD27 Mexico N. American 1927- Mexico NAD27 San Salvadr North American 1927- San Salvador Island NAD83 North American 1983- Alaska, Canada, Central America, CONUS, Mexico Nahrwn Masirah llnd Nahrwn- Masirah Island (Oman) Nahrwn Saudi Arbia Nahrwn- Saudi Arabia Nahrwn United Arab Nahrw[...]

Almanac Data —The satellite constellation information (including location and health of satellites) that is transmitted to your receiver from every GPS satellite. Almanac data must be acquired before GPS navigation can begin. Bearing (BRG) —The compass direction from your position to a destination. Course Over Ground (COG) — Direction of move[...]

Universal Time Coordinated (UTC)— The time of day at the prime meridian (0º longi- tude) in Greenwich, England. Universal Transverse Mercator- (UTM) — A grid coordinate system that projects global sections onto a flat surface to measure position in specific zones. Velocity Made Good (VMG) — The speed you are traveling in the direction of the[...]

79 SECTION F APPENDIX Time Offsets The chart below gives an approximate UTC time of fset for the various longitudinal zones. Check with local charts for more detailed information. If you are in daylight savings time, add one hour to the of fset. Longitudinal Zone Offset W180.0º to W172.5º -12 W172.5º to W157.5º -11 W157.5º to W142.5º -10 W142[...]

80 SECTION G APPENDIX Loran TD Position Format When creating new waypoints using Loran TD coor dinates you must set the correct loran chain number and secondary stations in the Setup TD field before storing the waypoint. After the waypoint is stored in unit memory , it will always reference the loran chain number and secondary stations currently se[...]

81 SECTION H APPENDIX Index A Alarm Setup 62 Anchor Drag Alarm 62 Antenna Installation 67 Arrival Alarm 62 AutoLocate 1-2,18 B Backlight Level 3 Beacon Receiver Setup 63-64 Bearing 77 Bearing/Distance Calculation 26 Built-in Map Coverage 2,74 C Calibrations, Map 28 Cancelling Active GOTOs 44 Capabilities iii Cautions ii Clock Alarm 62 Configuration[...]

82 SECTION H APPENDIX Index K Keypad Tone 59 Keypad Usage viii L Language Setup 59 Local Time Offset 59 Loran TD Positon Format 80 M Magnetic Variation 60 Main Menu 33 Man Overboard Function 45 Map Calibration 28 Map Configuration 27-28 Map Datum List 74-76 Map Datum Selection 61 Map Page 26-29 Map Scales 25 Marking a Position 6,34-35 Measuring Bea[...]

Reviewing Routes 48 Route Comments 51 Route Planning Mode 57 Stopping Route Navigation 14 S Satellite Acquisition 2,17-18 Satellite Sky View 17 Signal Strength Bars 2,17 Simulator Mode 4 Simulator Tour 4-16 Status Bar 18 Status Page 17-19 Steering Guidance 13,30-32 Sunrise/Sunset Calculation 58 System Setup 58-59 T Table of Contents vii Time Offset[...]

® © 1999-2000 GARMIN Corporation 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 9AQ, U.K. GARMIN (Asia) Corporation No. 68, Jangshu 2nd Road, Shijr , T aipei County , T aiwan www .garmin.com Part Number 190-00137-10 Rev . B up[...]