Table of Contents

SECTION ONE Introduction Glossary.2-3 SECTION TWO Getting Started Battery & Remote Antenna Installation.4 Keypad Usage & Data Entry.5 Primary Page Overview.6-7 Power On & Marking a Position.8 Position Page, Map Basics, & Going To A Waypoint.9 Compass Page & Cancelling A GOTO.10 Clearing the Map Display, Screen Contrast, & Power Off.11 SECTION THREE Reference Satellite Page.12-13 Battery Level Indicator, Backlighting, and Emergency Erase.14 Position Page & User Selectable Fields.15-16 Marking a Position & Position Averaging Function.17 Waypoint Pages & Managing Waypoints.18-23 TracBack Navigation.24-25 Creating and Using Routes.26-30 Using the Compass & Highway Pages.31-34 Map Page, Zooming, & Panning.35-38 Map Page & Track Log Setup.38-40 Menu Page & Distance/Sun Calculation.40 System Setup.41-42 Navigation Setup.43-44 Interface Setup & DGPS Interface.45-46 Navigation Simulator.47 SECTION FOUR Appendices Appendix AInitialization.48-49 Appendix BSpecifications & Wiring.50-51 Appendix CMessages and Time Offsets.52-53 Appendix DMap Datums.54-55 Appendix EIndex.56-58

Glossary

The GPS 12XL is a powerful navigation tool that can guide you anywhere in the world. To better understand its operation and capabilities, it may be helpful to review the basic terms and concepts briefly explained below. Other navigation and GPS definitions used in the manual are defined in the appropriate reference sections of the manual. Almanac Data 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 The compass direction from your position to a destination. Course Made Good (CMG) The bearing from the active from position (your starting point) to your present position. Crosstrack Error (XTK) The distance you are off a desired course in either direction. Desired Track (DTK) The compass course between the from and to waypoints. Differential GPS (DGPS) An extension of the GPS system that uses land-based radio beacons to transmit position corrections to GPS receivers. Estimated Time of Arrival (ETA) The time of day of your arrival at a destination. Estimated Time Enroute (ETE) The time left to your destination at your present speed.
Grid Coordinate system that projects the earth on a flat surface, using square zones for position measurements. UTM/UPS and Maidenhead formats are grid systems. Ground Speed The velocity you are traveling relative to a ground position. Latitude The north/south measurement of position perpendicular to the earths polar axis. Longitude An east/west measurement of position in relation to the Prime Meridian, an imaginary circle that passes through the north and south poles. Navigation The process of traveling from one place to another and knowing where you are in relation to your desired course. Position An exact, unique location based on a geographic coordinate system. Track (TRK) The direction of movement relative to a ground position. 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 destination. Waypoint A specific location saved in the receivers memory.

Satellite Page The Satellite Page will allow you to monitor satellite signal reception and strength.
The graphic compass tape reflects your heading only while you are moving.

Position Page

The rest of the page shows your current position in three dimensions: latitude, longitude, and altitude. A trip odometer and 12/24-hour clock are also provided.

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Map Page
The Map Page acts as a window. It allows you to view your position, the path you have traveled over, and nearby waypoints. A diamond icon in the center of the screen represents your current position. As you move, you will see a thin line - called a track log - appear along the path you have just covered. Names of stored waypoints can also be shown on the map. The bottom corners of the map will always display your current track and speed. When going to a waypoint, highlighting an on-screen waypoint, or using the panning target crosshair, the corresponding distance and bearing are shown at the top corners of the map. The top of the screen contains the zoom, pan, and configuration fields.
Navigation Page A navigation page gives you steering guidance when going to a waypoint. The GPS 12XL has two navigation page choices: the Compass Page and the Highway Page. The Compass Page is the default and will be briefly explained here. The Highway Page is covered on pages 35 and 38. The Compass Page shows the destination waypoint at the top of the page with the bearing (BRG) and distance (DST) to the waypoint shown below. The center of the page contains a compass ring and arrow to show you the direction of the waypoint from the direction you are moving. The bottom of the page gives your track (TRK), speed (SPD), and a selectable field for estimated time to arrival (ETA), estimated time enroute (ETE), course to steer (CTS), crosstrack error, (XTK), velocity made good (VMG), or turn bearing (TRN). Menu Page The last primary page is the Menu Page. The Menu Page gives you access to the GPS 12XLs waypoint management, route, track log, and setup features through a list of submenus.
The Map Page shows your progress on a moving map plotter and gives a birds-eye-view of surrounding waypoints.

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Waypoint List Page (continued) An options page will appear, asking if you want to delete all user-defined waypoints or if you want to delete waypoints by symbol type.
1. Highlight either ALL or SYMBOL, and press E.
Waypoint List & Proximity Waypoints
If you highlight SYMBOL, youll be asked to select a symbol.
1. Select the symbol to be deleted, and press E. 2. Press E to confirm the DONE prompt, highlight the YES? prompt, and press E.
Note: This feature is handy for deleting temporary waypoints created by the TracBack function.
Proximity Waypoints The GPS 12XLs proximity waypoint function warns you when you are getting too close to hazardous waypoints. This function allows you to create up to nine proximity waypoints and designate an alarm circle for each waypoint. If you enter this circle, a warning message will alert you.
To enter a proximity waypoint from the Menu Page:
1. Highlight PROXIMITY WPTS and press E. 2. Highlight the first empty waypoint field and press E. 3. Use the U or D key to scroll through stored waypoints until the desired waypoint appears. 4. Press E. The distance (DST) field will be automatically highlighted. Enter the desired distance. 5. Press the E key.
Deleting waypoints by symbol enables you to delete a specific group of waypoints without losing all other waypoints.
To review or remove a proximity waypoint:
1. Use U and D to select a proximity waypoint and press E. 2. Highlight REVIEW? or REMOVE? and press E. Quickly edit proximity waypoints by highlighting the waypoint name and pressing ENTER.
If REVIEW? is chosen, the waypoint page will appear, and you may make any changes to the selected waypoint. If REMOVE? is chosen, the proximity waypoint page will reappear with the waypoint removed. Press Q or P to return to the Menu Page.

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Waypoint Definition Page

Waypoint Name

Waypoint Definition & Reference Waypoints
Position Coordinates Waypoint Comment Distance from Reference Waypoint Function Prompts
Reference Waypoint Bearing from Reference Waypoint
The GPS 12XLs advanced waypoint planning features allow you to create new waypoints and practice navigation without ever setting foot outside. If you create a new waypoint by entering coordinates from a map, you may want to re-mark the waypoints exact position once you get there. To re-define an existing waypoints position coordinates from the waypoint definition page, simply highlight the DST field and press ENTER. Use the LEFT arrow key to set the distance to 0.00, and press ENTER to confirm. The old coordinates will be replaced by the coordinates of your present position (you must have a valid 2D or 3D position fix).

To activate the GOTO function:
1. Press G. 2. Select the waypoint you want to navigate to, and press E.
Select a GOTO & MOB Function
Once a GOTO waypoint has been activated, the Compass Page or Highway Page will provide steering guidance to the destination until either the GOTO is cancelled or the unit has resumed navigating the active route (see pg 30).
1. Press the G key. 2. Highlight CANCEL GOTO?, and press E. Select a destination waypoint from the GOTO waypoint list.
Man Overboard Function The GPS 12XLs man overboard function (MOB) lets you simultaneously mark and set a course to a position for quick response to passing positions.
To activate the MOB mode:
1. Press G twice. The GOTO waypoint page will appear with MOB selected. 2 Press E to begin MOB navigation.
The GPS 12XL will now guide you to the MOB waypoint until the MOB GOTO is cancelled. If you want to save the MOB waypoint, be sure to rename it because it will be overwritten the next time a MOB is activated.
Once the MOB mode has been activated, steering guidance will be provided by the Compass or Highway Page. Activating another MOB will overwrite the previous MOB waypoint.

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TracBack
TracBack Navigation GARMINs patented TracBack feature allows you to quickly retrace your path using the track log automatically stored in the receiver. This feature eliminates the need to mark waypoints along the way and manually create and activate a route back to where you began your trip. Three track recording options are available: Offno plot will be recorded. Filla track plot will be recorded until track memory is full. Wrapa track plot will be continuously recorded, wrapping through the available memory (replacing the oldest data with new data).
To select a track log option:
1. Highlight the RECORD field, press E, select an option, and press E.
WARNING: Setting the track recording to OFF will disable the TracBack function.
Once a TracBack route is activated, it will lead you back to the oldest track log point stored in memory, so its usually a good idea to clear the existing track log at the start of each trip.
To clear the track log and define a starting point for a TracBack route:

The TracBack feature will navigate your track log back to the oldest point in the receivers memory.
The track log will be divided into segments with temporary waypoints to create a route back to the beginning of the track log.

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Routes
Route Navigation The last form of navigating to a destination with the GPS 12XL is by creating a user-defined route. The route navigation feature lets you plan and navigate a course from one place to another using a set of pre-defined waypoints. Routes are often used when its not practical, safe, or possible to navigate a direct course to a particular destination (e.g., through a body of water or impassable terrain).

Waypoint 2

(active to waypoint)

Active Leg

Waypoint 1

(active from waypoint)

Routes are broken down and navigated in smaller segments called legs. The waypoint you are going to in a leg is called the active to waypoint and the waypoint immediately behind you is called the active from waypoint. The line between the active to and the active from waypoint is called the active leg. Whenever you activate a route with the GPS 12XL, it will automatically select the route leg closest to your position as the active leg. As you pass each waypoint in the route, the receiver will automatically sequence and select the next waypoint as the active to waypoint.

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Route Definition Page
Comment Field Desired Track of Leg Route Number Leg Distance

Copy Field

Total Distance

Function Prompts

The last form of navigating to a destination with the GPS 12XL is by creating a user-defined route. The GPS 12XL lets you create and store up to 20 routes of 30 waypoints each. The route navigation feature lets you plan and navigate a course from one place to another using a set of pre-defined waypoints. Routes are often used when its not practical, safe, or possible to navigate a direct course to a particular destination (e.g., through a body of water or impassable terrain). The bottom of the route definition page features several function fields which let you copy, clear, invert, or activate the displayed route. Routes 1-19 are used as storage routes, with route 0 always serving as the active route you are navigating. If you want to save a route thats currently in route 0, be sure to copy it to another open route, as it will be overwritten by the next route activation. Routes can be copied, cleared, inverted, and activated through the route definition page.

Use the on-screen menu to select the desired editing function.
Review? reviews the waypoints definition page Insert? adds a new waypoint that precedes the selected waypoint Remove? deletes a selected waypoint Change? replaces the selected waypoint with a new waypoint You may delete a waypoint from a route, but only if the route is not active. Note: Editing the original storage route will not affect route 0. If you want to save an edited version of route 0, save it to an open storage route. On-Route GOTOs At the beginning of this section, we mentioned that the GPS 12XL will automatically select the route leg closest to your position as the active leg. This will give you steering guidance to the desired track of the active leg. Note that the first waypoint selected as the destination waypoint will be the route leg closest to your present position. This may mean youre not navigating to the first waypoint in the active routeyou may be navigating to the last. If you prefer to navigate a route out of sequence, you can perform an on-route GOTO from the active route page.
To perform an on-route GOTO from the active route page:
To edit or review a route waypoint from the active route page, highlight the desired waypoint and press ENTER.
1. Highlight the desired route waypoint, and press G. 2. Once the GOTO waypoint page appears with the waypoint highlighted, press E.
Note that after you reach the on-route GOTO waypoint, the GPS 12XL will automatically resume navigating the rest of the route in sequence using the page you were on before performing a GOTO.

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Selecting a User-Defined Navigation Page Once youve selected a GOTO destination or activated a TracBack, MOB, or route, the GPS 12XL will provide graphic steering guidance to the destination with one of two navigation pages:

Navigation Pages

Highway Page
To switch the navigation page to the Compass Page, press ENTER twice.
The Compass Page (default) provides a directional pointer to the destination, with a rotating compass display to show your direction of travel. The Compass Page provides better steering guidance for car travel, hiking, or biking, where straight-line navigation usually is not possible. The Highway Page provides a graphic highway that shows your movement relative to the desired course, with an emphasis on your crosstrack error (the distance and direction you are off course). This page also features a course deviation indicator (CDI) (see pg. 34). The Highway Page is wellsuited for water or off-road recreation where straight-line navigation is possible. Both pages provide a digital display of the bearing and distance to the destination, and your current speed and track over the ground. You can switch to either Navigation Page at any time.
To select either Navigation Page:

1. Press E from the existing Navigation Page, and E again to change the page.
To switch the navigation page to the Highway Page, press ENTER twice.

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Selecting a User-Defined Navigation Page (cont.)

Graphic Compass

Distance to Waypoint
Track Over Ground User-Selectable Field
The ETE field, located in the middle-bottom of both pages, is a user-selectable field that allows you to display a variety of navigation values for your trip.
To access the user-selectable field:
Use the user selectable field to customize the navigation pages. 1. Highlight ETE, and press E. 2. Use the keypad to scroll through the possible options.
The turn option will show you the number of degrees you need to turn to head directly to your destination.
The following data options are available for the Navigation Pages: Estimated Time Enroute (ETE) the time left to your destination based on your present speed and track. Estimated Time of Arrival (ETA) the time of day of your arrival at a destination, based on current ground speed and track. Course to Steer (CTS) the bearing which will give you the most efficient way to stay on course to your destination. Crosstrack Error (XTK) the distance you are off the desired course in either direction. This field will give you a digital representation of the CDI scale. Velocity Made Good (VMG) the speed you are traveling toward the destination. Turn (TRN) the amount of correction in degrees needed to travel directly to the destination.

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Using the Compass Page

Destination Waypoint

Bearing to Waypoint

Pointer to Waypoint

Speed Over Ground
The Compass Page provides better steering guidance than the Highway Page for travel at slower speeds (ex. walking) and for travel with many directional changes. The bearing (BRG) and distance (DST) to the waypoint are displayed at the top of the page, below the destination waypoint name. The distance displayed is the straight-line distance from your present position to the destination waypoint. The bearing indicates the exact compass heading from you to the destination. The middle of the page features a rotating compass ring that shows your course over ground while you are moving (track up orientation), with a pointer arrow to the destination displayed in the center. The arrow shows the direction of your destination from the direction you are moving. For instance, if the arrow points up, you are going directly to the waypoint. If the arrow points any direction (left, right, down, etc.), turn toward the arrow until it points up. Then continue in that direction. The bottom of the page shows your track (TRK), speed (SPD), and a user-selectable field for ETE, ETA, CTS, XTK, VMG, or TRN. When you are one minute away from your destination (based on your current speed and track over ground), the GPS 12XL will alert you with a flashing on-screen message box.

Rings displays the three present position range rings on the map. Route plots the straight-leg lines between waypoints of an active route and displays all route waypoint names.

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Map Setup Page and Orientation (cont.)
Nearest shows the nine nearest waypoints to your position (black diamond) on the map. Names displays the waypoint name for the nine nearest waypoints. Track Log displays and plots track points on the map.

Map & Track Setup

To turn a map item on or off:
1. Highlight YES or NO for the specific map item, and press E.
Track Setup Page The track setup page lets you manage the GPS 12XLs track log data. You can also select whether to record a track log and define how it is recorded.
To turn the track log on or off:
1. Highlight the RECORD field, and press E. 2. Select OFF, FILL, or WRAP, and press E. (Note: Turning the track recording off will prevent using TracBack). Use the track setup page to control the way the GPS 12XL manages your track log.
Track Method The stored track method determines how often positions are stored in the track log. The default setting is automatic, which will store a track based on resolution. This setting gives the most efficient use of track memory and provides the best TracBack route.
To change the method to record points based on a specific time interval:
1. Highlight the METHOD field, and press E. 2. Select TIME INTERVAL, and press E twice. 3. Enter hours, minutes, and seconds, and press E. Entering a time interval in to the track recording criteria will plot your position points further apart than they would be in the Automatic setting. This will increase the distance you can travel without using up your track log, but will greatly reduce the effectiveness of TracBack.
Track Log Display The track log option sets the number of points the unit will attempt to display on the Map Page. The default setting of 250 points provides good resolution with minimal screen clutter. The maximum setting is 1024 points. Once youve reached the maximum number of track points, the older points will be lost as new points are added. Note that adjusting the track points displayed will not affect whether the receiver records a track log or the ability to create a TracBack route.

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Track Log & Distance/Sun Calculation
Managing and Clearing the Track Log The rest of the track setup window displays the percentage of available memory currently used to store track log data, as well as function fields to clear the track log memory and activate the TracBack feature.

To clear the track log:

1. Highlight CLEAR LOG?, and press E. 2. Highlight Yes?, and press E.
Note: Its a good idea to clear the track log at the end of the trail head, etc., in order to make the best use of the TracBack feature.

To select the time format:
1. Highlight the HOURS field, and press E. 2. Select 12- or 24-hour display, and press E.
To display the correct local time, you must enter the appropriate offset from the chart at the end of Appendix C.

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Screen Contrast
Screen Contrast & Backlighting
The GPS 12XL has adjustable screen contrast controlled by an on-screen bar scale.
To set the screen contrast:
The Stay On setting will keep your backlighting on continuously. However, this will significantly reduce your battery life. 1. Highlight the CONTRAST field, and press E. 2. Adjust the bar scale to the desired contrast, and press E.
Note: The screen contrast can also be adjusted by pressing the rocker keypad while on the Satellite Page (see pg. 11).
Backlighting Timer The screen backlight timer is adjustable for 15, 30, 60, 120, or 240 seconds. The timer also may be set to the Stay On setting for continuous use. Whenever backlighting is on, a bulb icon will appear on the Satellite Page.
To set the backlight timer:
1. Highlight the light timeout field, and press E. The tone setting has three options to customize it to your preference. 2. Select the desired setting, and press E. 3. To turn lighting on and off, press the B briefly.
Tone Setting The GPS 12XL allows you to choose a tone for messages only, messages and keystrokes, or no tone setting at all.

To set the tone:

1. Highlight the TONE field and press the E key. 2. Select the desired setting and press E.

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Navigation Setup The navigation setup submenu page is used to select units of measurement for position formats, map datums, CDI scale, units, and heading information. Position Formats The default position format for the GPS 12XL is latitude and longitude in degrees and minutes (hdddmm.mmm). You may also select degrees, minutes and seconds (hdddmmss.s); degrees only (hddd.ddddd); UTM/UPS coordinates; or British, German, Irish, Maidenhead, Swedish, Swiss, or Taiwan, or User grid formats.
To select a position format:
1. Highlight the POSITION FRMT field, and press E. Select the desired setting, and press E.

Navigation Setup

User Grid Position Format The user grid option lets you create a user defined position format by establishing factors such as longitude of origin, scale, and false Easting or Northing. To define a user grid:
1. Select User Grid, and press E. Enter values for longitude origin, scale, and false Easting and Northing, and press E. Highlight SAVE?, and press E.

The position format may be set to display your choice of many formats. Note: degree and minutes is the default setting.
Map Datums The MAP DATUM field comes with a WGS 84 default setting. Although 106 total map datums are available for use (see Appendix D for map datums), you should only change the datum if you are using maps or charts that specify a different datum than WGS 84. To select a map datum:
1. Highlight the MAP DATUM field, and press E. 2. Select the desired setting, and press E.
The default map datum covers world-wide navigation. However, if you are using a paper map or chart which uses a different map datum that WGS 84, then you may wish to switch to that datum.

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Map Datums (continued)

To define a user datum:

1. Highlight the MAP DATUM field, and press E. 2. Scroll through the map datum options until User appears, and press E. 3. Enter values for DX, DY, DZ, DA, and DF using the rocker keypad, and press E. 4. Highlight SAVE?, and press E. The setup menu will reappear.
Datums, CDI Settings, & Measurement
The user datum feature allows you to define the earth model used to calculate position coordinates. WARNING: Incorrect entries may result in substantial position errors.
CDI Scale Settings The course deviation indicator (CDI) field lets you select the +/- range of the CDI bar scale on the Highway Page. Three scales are available: +/- 0.25 (default), 1.25, and 5.0 miles or kilometers. Note: This CDI value represents the full deflection of scale to either side. To enter a CDI scale setting:
1. Highlight the CDI SCALE field, and press E. 2. Select the desired setting, and press E.
Units of Measure The GPS 12XL lets you select statute (default), nautical, or metric units of measure for all speed and distance fields. To change the unit of measure:
1. Highlight the UNITS field, and press E. 2. Select the desired unit of measure, and press E.
To enter a user-defined magnetic variation, select the User Mag option and enter the desired direction and value.
Magnetic Heading Reference The GPS 12XLs heading information can be displayed referencing magnetic north (automatic or userdefined), true north, or calculated grid headings. The default setting is automatic magnetic north, which is suitable for most applications. To select a heading reference:

If the EZinit prompt has not automatically appeared on the Satellite Page:

1. Press the E key.

Note: If the EZinit prompt ever appears after you have initialized the receiver (due to the antennas view of satellites being obstructed by trees, etc.), highlight the NO RE-INIT selection with the arrow keypad and press E.

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To initialize the receiver:
1. If the COUNTRY option is not highlighted, press the D key repeatedly to move the field highlight to the COUNTRY option. 2. Press the E key. 3. Use the D key to scroll through the list options until the country of your present position appears. 4. Use theU key to highlight the country/state/region youre in. If the country youre in is not listed, select another country within 500 miles of your present position. 5. Press E to finish.
The GPS 12XL will now begin searching for the appropriate satellites for your location and should acquire a position within 3-5 minutes. You can verify that you have acquired a position by watching the Satellite Page transition to the Position Page (provided you havent pressed any other buttons) or by looking for a 2D NAV or 3D NAV status at the top-left corner of the Satellite Page.
Initialization Troubleshooting If you have trouble initializing the receiver or acquiring a position, check the following:
Does the unit have a clear view of the sky?
Use the arrow keypad to highlight the country, region, or state of your present position from the list and press ENTER. If the country is not listed, select the closest country instead.
If there are large buildings or mountains nearby, or if there is heavy tree cover, the receiver may not be receiving enough satellite signals to calculate a position.
Have you selected the right country/state/region from the EZinit list?
Check for the correct approximate lat/lon on the Position Page, or reselect the appropriate country from the list to restart the initialization.
Have you moved more than 500 miles from the last calculated position with the receiver off?
Reinitialize the receiver, selecting the country/state/ region of your new location from the EZinit list. Your unit should now be initialized.

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APPENDIX B
Specifications & Wiring
PHYSICAL Case: Size: Weight:
Never attempt any repairs yourself. To protect your GPS 12XL, keep it in its carrying case when not in use, and never allow gasoline or other solvents to come into contact with the case. Clean the case and lens with a soft cloth and a household window cleaner.
waterproof* 14.6 x 5.1 x 3.4 cm Approx 9.5 ounces (269g) w/ batteries 5 to 158F (-15 to 70C)
Temperature Range: PERFORMANCE Receiver: Acquisition Time:
12 parallel channel, differential-ready Approx. 15 seconds (warm start) Approx. 45 seconds (cold start) Approx. 5 minutes (AutoLocateTM)
Update Rate: Position Accuracy: Velocity Accuracy: Dynamics: POWER Input: Battery Life: Internal Backup:

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APPENDIX C
Messages & Time Offsets
The GPS 12XL uses a flashing on-screen message indicator to alert you to important information. Whenever the message indicator appears, press PAGE to view the message page. There are two types of messages: temporary alerts and condition alerts. Temporary alerts are cleared from the message page after viewing, while condition alerts remain until the condition has been resolved. Pay careful attention to all messages for your own safety.
Active WPT Cant be DeletdYou have attempted to change the active to or active from waypoint. Clear the active route or GOTO before making your changes. Accuracy has been DegradedThe accuracy of the GPS 12XL has been degraded beyond 500 meters due to poor satellite geometry or data quality. You should check other navigational sources to verify the position indicated. Already ExistsThe name you are entering already exists in the GPS 12XLs memory. ApproachingYou are one minute away from reaching a destination waypoint. Battery Power is LowThe batteries are low and should be replaced. No DGPS PositionNot enough data is available to compute a DGPS position. No RTCM InputBeacon receiver is improperly connected or baud rates do not match. Poor GPS CoverageThe GPS 12XL cannot acquire the necessary number of satellites to compute a position. Try another location with a clearer view of the sky. Power Down and Re-initThe GPS 12XL is not able to calculate a position due to abnormal satellite conditions. Turn the unit off and verify the last position shown by other means. Try the unit again later, possibly in a different location. PROX AlarmYou have entered the alarm circle for a specific proximity waypoint. Proximity OverlappedThe alarm circles of two proximity waypoints overlap which could cause difficulty in monitoring distances to each waypoint. Proximity Wpt cant be DeletedThe waypoint you are trying to delete is listed as a proximity waypoint and must be removed from the list before it can be deleted. Read Only Mem has FailedThe permanent memory has failed and the unit is not operable. Received an Invalid WPTA waypoint was received during upload transfer that has an invalid identifier. Receiver has FailedA failure in receiver hardware has been detected. If this message persists, do not use the unit and take it to an authorized dealer for repair. Route is FullYou have attempted to add more than 30 waypoints to a route. Route is not EmptyYou have attempted to copy into a route already in use. Route Waypoint Cant be DeletedThe waypoint you are trying to delete is part of a route. Delete the waypoint from the route before removing it from memory. Route Waypoint was DeletedA route waypoint entered does not exist in the database and has been deleted from the route