Table of Contents

INTRODUCTION.. 1 ACCESSORIES.. 1 TRANSDUCERS.. 1 INSTALLATION... 2 Mounting.. 2 Power Connections... 3 NMEA/DGPS Wiring.. 4 Accessory Connections.. 5 Speed/Temperature Sensor.. 5 MMC.. 7 KEYBOARD... 8 SONAR OPERATION... 9 Pages.. 9 Full Sonar Chart.. 9 Split Zoom Chart.. 9 Split Frequency Sorna Chart.. 9 Digital/Chart.. 10 Customizing the Digital/Chart Screen. 11 Menus... 11 Sonar Options.. 12 Sensitivity.. 12 Automatic Sensitivity. 12 Grayline.... 13 Range - Automatic.. 13 Manual.. 14 Range - Upper/Lower Limits. 14 Zoom.. 15 Chart Stop.. 15 Chart Speed.. 15 Depth Cursor.. 15 Chart Data.. 16 Sonar Features.. 16 Transducer Frequency.. 17 Surface Clarity.. 17 Noise Rejection.. 17 Fish Symbols/Fish Depths. 18 Log Sonar Chart Data.. 19 Display Settings.. 19 Contrast/Backlight/Display Mode. 19 Audio.. 20 Alarms... 20 Depth Alarms.. 21 Zone Alarm.. 21 Fish Alarm... 22 Sonar Setup.. 22 Transducer Type.. 22 Keel Offset... 23 Calibrate Speed.. 23 Reset Water Distance. 23 Sonar Simulator.. 24 System Setup.. 24 Units of Measure. 24 Set Local Time.. 25 Communication Ports. 25 Configure DGPS.. 26 Configure NMEA. 26 Reset Options. 26 Popup Help.. 27 Hide GPS Features.. 27 Software Information.. 27 Sun/Moon Calculator.. 27 GPS OPERATION.. 28 Introduction to GPS.. 28 Finding Your Position.. 30 Auto Search.. 30 Manual Initialization.. 30 Position Acquisition.. 31 Require DGPS.. 32 PAGES.. 32 Status Screen. 32 Customizing the Status Screen. 33 Navigation Screen.. 33 Customizing the Navigation Screen. 34 Map.. 34 Full Map.. 35 Digital Data.. 35 Two Position Formats. 36 Two Maps.. 36 Map with Sonar.. 36 Cursor.. 36 Cursor Distance.. 37 Map Orientation.. 37 Auto Zoom.. 39 Range Rings/Grid Lines. 39 Map Data.. 39 Map Categories Drawn.. 40 Icons.. 40 Plot Trail... 41 Edit Trail.. 42 Navigate a Trail.. 42 Trail Options.. 44 New Trail.. 44 Delete All Trails.. 44 Waypoints.. 45 Saving Present Position.. 45 Saving Cursor Position.. 45 Saving a New Position.. 46 Edit Waypoint.. 46 Average Position.. 47 Waypoint Information.. 47 Waypoint Navigation. 48 Navigate to Cursor.. 48 Navigate to Waypoint using Map. 48 Man Overboard.. 49 Cancel Navigation.. 50 Routes... 50 Create a Route.. 51 Follow a Route.. 53 GPS Simulator.. 53 GPS Setup... 54 Coordinate System.. 54 Map Fix... 55 Datum.. 56 Position Pinning.. 57 GPS Alarms.. 58 Sonar Troubleshooting.. 59 Warranty Information.. 62 Datum List.. 63 Database License Agreement. 66 Database Limited Warranty.. 67 Saving and Replaying a Sonar Record. 68 Transferring GPS Data to/from a MMC. 69

INTRODUCTION Thank you for purchasing a Lowrance product. No other combination sonar/GPS receiver has the features of the LCX-15MT. Countless hours went into the design of this product. We hope that you enjoy using it as much as we have. The LCX-15MT is sold with many different accessories. Some are packed with a GPS receiver, MMC, and mapping CD-ROM. Others are sold only with a transducer. Many may come with different combinations of accessories. Please note that you may need to purchase accessories in order to use all of the features of this product that are described in this manual. A list of the accessories and transducers is shown below. ACCESSORIES Model Part # Gimbal Knobs.. GK-9.. 101-80 Gimbal Bracket.. GB-12.. 101-78 Power Cable.. PC-21X.. 99-56 Protective Cover.. CVR-1.. 101-82 Sun Shade... SS-1.. 101-83 MMC Drawer.. MMCD-1. 101-84 MMC Interface... MMCI. 101-85 Cigarette Adapter Cable. CA-4.. 99-59 Power Connector Repair Kit.. TC-4X.. 101-86 MMC Card 8MB.. MMC-8. 101-87 MMC Card 16MB. MMC-16.. 101-88 Transducer Extension Cable (12'). XT-12.. 99-57 Transducer Extension Cable (20'). XT-20X. 99-58 Speed/Temp Y-adapter Cable. MY-4X.. 99-53 Speed/Temp Sensor w/ MY-4X.. ST-TX.. 99-54 Temp Sensor 1 w/ MY-4X. TS-1X.. 99-50 Temp Sensor 2.. TS-2X.. 99-51 Temp Sensor 3.. TS-3X.. 99-52 Transducers Model Part # 200 kHz Skimmer.. HS-WSDX.. 106-22 High Speed Transom mount w/temp sensor 200 kHz Pod Transducer.. PD-WDXT. 106-26 w/temp sensor for trolling motor application
Transducers (cont.) Model Part # 200 kHz Pod Transducer.. PD-WDX.. 106-27 w/o temp for shoot-thru hull 50/200 kHz Dual Freq.. HS-50/200-DX. 106-23 Skimmer High Speed Transom mount with temp sensor 50/200 kHz Dual Freq.. THST-50/200-DX.. 106-29 Bronze thru-hull mount w/temp and speed sensor INSTALLATION Bracket Install the unit in any convenient location, provided there is clearance behind it when it is tilted for the best viewing angle. Holes in the bracket base allow wood screw or through-bolt mounting. Make certain there is enough room behind the unit to attach the power and other cables.

9.6 3.7

Once the best location is determined, use the bracket as a template and mark the mounting holes and the hole for the cables. Drill a 1.0" hole for the cables. Screw the bracket to the mounting surface. IMPORTANT! In order to pass all connectors through the 1" hole in the bracket and dash, first pass the transducer connector up through the hole, then any accessory cables. Next, pass the power cable down through the hole. Fill the hole with a marine sealant. You can now wire the power cable.

Power Connections This unit operates from a 12-volt battery system. For the best results, connect the power cable to the in-line fuse holder and attach it directly to the battery. The power cable can be attached to an accessory or power buss, however there could be problems with electrical interference using this method. Therefore, its better from a noise standpoint to attach the power cable and fuse holder directly to a battery. If the cable is not long enough, splice 16-gauge wire onto it. The power connector has two cables attached to it. One cable has the power and ground wires, the other is for the NMEA/DGPS interface. See below for NMEA/DGPS wiring instructions. The power cable has two wires - red and black. The black wire connects to the batterys negative terminal. The red wire is the positive wire. Connect it to the fuse holder supplied with the unit. Connect the other end of the fuse holder to the positive side of the battery. Make certain to attach the fuse holder directly to the battery. This will protect the both cable and the unit in case there is a short circuit. Use a 6-amp fuse.

TO POWER CONNECTOR

POWER CABLE YELLOW SHIELD ORANGE BLUE BLACK WIRE RED WIRE 6-AMP FUSE

12-VOLT BATTERY

IMPORTANT! Do not use this product without a 6-amp fuse connected to the power cable! Failure to use a fuse will void your warranty.
To prevent electrical interference, route the power, transducer, and GPS cables away from other wiring, especially the engines wiring harness. VHF radio antenna cables radiate noise when transmitting, so be certain to keep the units wires away from it, also. NMEA/DGPS NMEA is a standard communications format for marine electronic equipment. For example, an autopilot can connect to the NMEA interface on the LCX-15MT and receive positioning information. DGPS is an acronym for Differential Global Positioning System. The most popular DGPS system relies on a grid of ground-based transmitters that send correction signals to DGPS receivers. These in turn, connect to the GPS receiver (such as the LCX-15MT with the LGC-12S GPS module). This gives more accurate positions than is otherwise possible. NMEA/DGPS Wiring The LCX-15MT has two NMEA 0183 version 2.0 ports. Com port one can be used for either NMEA or DGPS, Com port two is for NMEA output only. Comunications port one uses the yellow wire wire for transmit, the orange wire for receive. Comunications port two uses the blue wire for transmit. Both ports use the shield wire for signal ground. See the diagrams below for general wiring connections. Read your other products owners manual for more wiring information.

YELLOW (TRANSMIT)

RECEIVE TRANSMIT GROUND

COM-1 LCX-15MT

ORANGE (RECEIVE) SHIELD (GROUND)

TO BEACON RECEIVER

BLUE(TRANSMIT)

RECEIVE

COM-2 LCX-15MT

SHIELD (GROUND)

GROUND

TO OTHER DEVICE

ORANGE (RECEIVE)

NMEA TRANSMIT GROUND

FROM GPS RECEIVER
The LCX-15MT can accept position information from any GPS receiver that transmits NMEA 0183 data. Use the wiring diagram shown above for NMEA input to the LCX-15MT. See page 25 and 26 for NMEA and DGPS com port setup instructions. Accessory Connections The rear of this unit has three connectors: Power/Data, GPS, and Transducer. The power cable connects to the Power/Data connector, the cable from the GPS module goes to the GPS connector, and the transducer plugs into the Transducer connector.

PWR/DATA

LOWRANCE GPS MODULE

TRANSDUCER

Speed/Temperature Connections This unit can use a speed sensor in addition to up to three temperature sensors. All transom-mount Skimmer transducers have a temperature sensor built into them. To add another temperature sensor besides the one in the transducer requires a MY-4X Y adapter cable and a TS-2X temperature sensor. The transducer plugs into one end of the MY-4X, the TS-2X temperature sensor plugs into another, and the last end plugs into the SONAR port. The TS-2X temperature sensor has an extra connector for a TS-3X temperature sensor. This lets you have three temperature sensors, if desired. Note: Do not combine the temperature sensors in any order other than shown on the next page. For example, do not use two TS-3X temperature sensors in place of one TS-2X and one TS-3X sensors. Each sensor is programmed to work only on the channel its designed for.
Temperature and Speed/Temperature Installation Examples

X-15MT Sonar Connector

Y Adapter Cable (Packed with Speed/Temp Sensor)
To Transducer Temperature Sensor

To Transducer

Speed/Temp Sensor To Additional Temp. or Speed Sensors (if needed) To Additional Temp. Sensors (if needed)
MMC This unit can use up to two MMC (MultiMediaCard) cartridges. They store the maps, waypoint and route information, sonar data, and more.
To install a MMC cartridge, twist the drawer retainer counter-clockwise and pull. The drawer will come out of the unit. Place the MMC cartridge FACE DOWN. (see above) Slide the drawer back into the unit and twist the retainer clockwise. The MMC is now ready for use. For more information on saving and recalling sonar data to the MMC, see page 68. Map storage requires the MapCreate software and a MMC Interface. If your unit did not come with these, they are available for purchase separately. You can also store plot trails, icons, waypoints, and routes on a MMC. See page 69 for more information.

KEYBOARD The keyboard has keys arranged in two vertical columns beneath the arrow keys. The menu key near the bottom left corner of the keyboard activates the first menu page. The other keys are used to zoom the display, change modes, and other functions. ZOUT/ZIN - These keys zoom the map or the sonar screen in and out. PAGES - This key switches the unit between different sonar or GPS modes. WPT - Saves and recalls waypoints. MENU - Press this key to show the menus and gain access to most functions. EXIT - Clears menus and entries. ENT/ICONS - Used to select entries and accept menu selections. When a menu is not showing, pressing this key activates the ICON menu. PWR/LIGHT - Turns the unit on and off. When the unit is on, pressing this key turns the backlights on or off. Note: Pressing the PWR/LIGHT key repeatedly changes the backlight level. There are three levels available.

SONAR OPERATION

PAGES Turn the unit on by pressing the PWR/LIGHT key. If the sonar screen is not showing, press the PAGES key. A menu similar to the one at right appears. Press the left or right arrow key to highlight the Sonar label. This gives you four selections: Full Sonar Chart, Split Zoom Sonar Chart, Split (Dual) Frequency Sonar Chart, or Digital Data only. Once the desired menu is selected, press the EXIT key to erase the menus.
Full Sonar Chart This is the default mode used when the unit is turned on for the first time or when its reset to the factory defaults. The bottom signal scrolls across the screen from right to left. Depth scales on the right side of the screen aid in determining the depth of targets. The line at the top of the screen represents the surface.The bottom depth and surface temperature (if equipped with a temperature sensor) show at the top left corner of the screen. The FasTrak display shows just to the right of the scale. This changes all echoes into short horizontal bars, replicating a flasher sonar. The zoom bar on the far right shows the area thats zoomed when the zoom is in use. (See the Zoom section for more information.) The frequency of the transducer in use shows at the bottom of the screen.
Split Zoom Sonar Chart A split chart shows the underwater world from the surface to the bottom on the right side of the screen. The left side shows an enlarged version of the right side. The zoom range shows at the bottom left corner of the screen. In this example, the zoom range is 2X, or two times the right sides view.
Split Frequency Sonar Chart This chart shows sonar data from the 50 kHz transducer element (if equipped) on the left side of the screen, and data from the 200 kHz transducer element on the right. All features are the same as the Full Sonar Chart.

tom can be shown, which enlarges targets to best suit your fishing needs and water conditions. ZOOM Zooming the display is a common method used to enlarge small detail, fish signals, and the bottom with its asscociated structure. This unit lets you zoom the display quickly and easily by pressing the ZIN key. Pressing it once doubles the size (2X) of all echoes on the screen. Pressing it again quadruples the size of the echoes (4X). The zoom bar on the far right side of the screen shows which echoes will be displayed on the screen when the ZIN key is pressed. For example, pressing the ZIN key once will enable a 2X zoom which will show all echoes that are between the top and bottom of the 2X zoom bar. Pressing the key again will give a 4X zoom and only the echoes between the top and bottom of the 4X bar will show on the screen. Press the ZOUT key to return the display to the normal mode. STOP CHART To temporarily stop the chart from scrolling, press the MENU key, then select Stop Chart from the menu and press the ENT key. Repeat these steps to start the chart again. CHART SPEED The rate that echoes scroll across the screen is called the chart speed. Its adjustable by pressing the MENU key, then selecting Chart Speed. A sliding knob adjustment appears on the screen. The default is maximum. Press the up or down arrow key to adjust the speed, then press the EXIT key to erase the menu. DEPTH CURSOR The depth cursor consists of a horizontal line with a digital depth box on the right side. The numbers inside the box show the depth of the cursor.
The cursor can be moved to any location on the screen, letting you pinpoint the depth of a target. To show the depth cursor, press the MENU key, then select Depth Cursor. Press the ENT key. The cursor appears at the top of the screen. Use the arrow keys to move the cursor to the desired depth. Erase the depth cursor by pressing the EXIT key. CHART DATA The digital information shown in the upper left corner of the display along with the zone alarm and zoom bar can be changed using the Chart Data menu. To use this menu, press the MENU key, select Chart Data Shown and press the ENT key. A screen similar to the one at right appears. The unit can show the digital depth in large numbers (default), small numbers, or off. To change it, select the Depth label, then press the ENT key. Highlight the desired setting using the arrow keys, then press the ENT key. To change any of the other settings, on this screen, select them using the arrow keys, then press the ENT key to select them. Press the EXIT key to erase the menu when youre finished. SONAR FEATURES Several key sonar options are under the Sonar Features menu on the main menu. Select the main menu by pressing the MENU key, then select Sonar Features and press the ENT key. The menu shown at right appears.
Transducer Frequency This unit operates from both 200 kHz and 50 kHz. The default frequency is 200 kHz. Its best for use in shallow water. The 50 kHz frequency is best for deep water, especially saltwater. Use the arrow keys to highlight the desired frequency, then press the ENT key to select it. Surface Clarity The markings extending downward from the zero line on the chart are called surface clutter. These markings are caused by wave action, boat wakes, temperature inversion, and more. The surface clarity control reduces or eliminates surface clutter signals from the display. It does this by changing the sensitivity of the receiver, decreasing it near the surface and gradually increasing it as the depth increases. The maximum depth that the surface clarity control can affect is 75% of the selected depth range. For example, on a 0 - 60 foot range with surface clarity control set to high, surface clutter will be reduced down to 45 feet. There are three levels of surface clarity available: low, medium, or high. It can also be turned off. The default level is low. To change it, highlight Surface Clarity on the Sonar Features menu, then press the ENT key to select it. Use the cursor keys to highlight the desired level of surface clarity, then press the ENT key. Noise Rejection The automatic noise rejection system built into this unit constantly evaluates the effects of boat speed, water conditions, and interference from electrical and mechanical sources such as bilge pumps, engine ignition systems and wiring, even engine vibration. It then works to reduce or eliminate the negative effects on the sonar screen. This gives the best display possible under most conditions. The Noise Rejection system is an effective tool in combating noise. In sonar terms, noise is any undesired marks on the display. This unit has two levels of noise rejection: normal and high. It can also be turned off. The default is normal. To change it, highlight Noise Rejection on the Sonar Features menu, then press the ENT key to select it. Use the cursor keys to highlight the desired level of noise rejection, then press the ENT key.

SONAR FEATURES (cont.) Fish Symbols The Fish Symbols feature identifies targets that meet certain conditions as fish. The microcomputer analyses all echoes and eliminates surface clutter, thermoclines, and other signals that are undesirable. In most instances, remaining targets are fish. The Fish Symbols feature displays symbols on the screen in place of the actual fish echoes. There are several fish symbol sizes. These are used to designate the relative size between targets. In other words, it displays a small fish symbol when it thinks a target is a small fish, a medium fish symbol on a larger target, etc. The microcomputer is sophisticated, but it can be fooled. It cant distinguish between fish and other suspended objects such as trotlines, turtles, submerged floats, air bubbles, etc. Individual tree limbs extending outwards from a group of limbs is the hardest object for the Fish Symbols feature to distinguish from fish. You may see Fish Symbols symbols on the screen when actually, there are no fish. Practice with the unit in both the Fish Symbols mode and without to become more familiar with the Fish Symbols feature. The default for Fish Symbols is off. To turn the Fish Symbols feature on, highlight Fish Symbols on the Sonar Features menu. Press the ENT key to turn the Fish Symbols feature on. Any targets the microcomputer determines are fish will be displayed as fish symbols. Fish Depths The Fish Depths feature shows the depth of a fish symbol when it appears on the display. This lets you accurately gauge the depth of targets. This feature is available only when the Fish Symbols feature is on. The default for Fish Depths is off. To turn the this feature on, highlight Fish Depths on the Sonar Features menu. Press the ENT key to turn the Fish Depths feature on. (Note: If Fish Symbols is off, turning Fish Depths on will also turn Fish Symbols on.)
LOG SONAR CHART DATA If you have a MMC installed in the unit, the sonar data shown on the screen can be saved to the MMC. This can be played back at any time. To save the chart data, press the MENU key, then select Log Sonar Chart Data. The screen at right appears. To save data using the defaults on this screen, highlight Start Logging and press the ENT key. You can change any of the defaults on this screen, if desired. When finished, press the EXIT key.
DISPLAY SETTINGS Contrast/Backlight/Display Mode To adjust these settings, press the MENU key twice. This shows the second menu page. Highlight Screen at the top of the page and press the ENT key. The screen at right appears. Contrast is highlighted on this menu by default. To adjust it, press the ENT key and use the left or right arrow keys to change it. Press the ENT key when finished. To adjust the backlightings brightness, first turn it on by pressing the PWR key. Next, highlight the Backlight label, then use the arrow keys to adjust it. Press the ENT key when youre finished. Display Mode optimzes the LCD (liquid crystal display) for specific viewing conditions. Normally, it should stay in the default mode. However, the High Contrast mode may be useful for shaded light conditions and the Night Viewing mode for use at night. Select the Display Mode menu, press the ENT key, then select the desired setting from the drop-down menu. Press the ENT key when youre finished.

The system requires three satellites in order to determine a position. This is called a 2D fix. It takes four satellites to determine both position and elevation (your height above sea level - also called altitude.) This is called a 3D fix. Remember, the unit must have a clear view of the satellites in order to receive their signals. Unlike radio or television, GPS works at very high frequencies. The signals can be blocked easily by trees, covered docks, even your body. Never use this GPS receiver while operating a vehicle! Like most GPS receivers, this unit doesnt have a compass or any other navigation aid built inside. It relies solely on the signals from the satellites to calculate a position. Speed, direction of travel, and distance are all calculated from position information. Therefore, in order for it to determine direction of travel, you must be moving and the faster, the better. This is not to say that it wont work at trolling speeds - it will. There will simply be more wandering of the data shown on the display. If you want better performance, many manufacturers (including Lowrance) sell a DGPS receiver that attaches to your GPS receiver. The DGPS system transmits correction signals that increase the accuracy to about 10 meters. The DGPS receiver takes signals from these land-based transmitters and gives them to the GPS receiver which then uses them to show a more accurate position. (You can use the signals from all of the Coast Guard DGPS stations for free, by the way.) The downside to this is it requires another piece of electronic gear (the DGPS receiver). And you have to be close enough to a station to receive the DGPS signals. Generally, you find that using your GPS receiver without DGPS is both easy and amazingly accurate. Its easily the most accurate method of electronic navigation available to the general public today. Remember, however, that this receiver is only a tool. Always have another method of navigation available, such as a chart and a compass. Also remember that this unit will always show navigation information in the shortest line from your present position to a waypoint, regardless of terrain! It only calculates position, it cant know whats between you and your camp, for example. Its up to you to safely navigate around obstacles, no matter how youre using this product.
FINDING YOUR POSITION Auto Search To lock onto the satellites, the GPS receiver needs to know its current position, UTC time, and date. (Elevation (altitude) is also used in the equation, but its rarely required to determine a position.) It needs this data so that it can calculate which satellites should be in view. It then searches for only those satellites. When your GPS receiver is turned on for the first time, it doesnt know what your position or elevation (altitude) is. It does know the current UTC time and date since these were programmed into it at the factory and an internal clock keeps the time while the unit is turned off. (If the time and/or date are incorrect, you can set it using the Set Local Time menu. See page 23 for more information.) It begins searching for the satellites using the above data that it acquired the last time it was turned on. This probably was at the factory. Since its almost certain that youre not at our factory, its probably looking for the wrong satellites. If it doesnt find the satellites its looking for after five minutes, it switches to Auto Search. The receiver looks for any satellite in the sky. Due to advanced technology, the auto search time has shrunk to about five minutes, so the longest time you should ever have to wait is ten minutes from the time you turn the unit on until it locks onto the satellites and shows a position. Once the unit locks onto the satellites, it should take less than a minute to find your position the next time its turned on, provided you havent moved more than approximately 100 miles from the last location it was used. The Auto Search function can be started at any time. Press the MENU key twice , then select GPS Auto Search. A new menu appears, Perform GPS AutoSearch. Highlight Yes and press the ENT key. The menus disappear and the unit will begin the auto search. Manual Initialization If you dont want to wait for the Auto Search, then you may be able to speed up the initialization process by using the manual initialization feature. Using this feature tells the unit its approximate position. Once it knows its location, it determines exactly which satellites should be in view and starts looking only for those satellites. To manually initialize the unit, press the PAGES key. Using the arrow keys, select Status. Press the EXIT key to erase the menu. The screen at

The GPS receiver is tracking satellites that are in bold type. The receiver hasnt locked onto a satellite if the number is grayed out, therefore it isnt being used to solve the position. Beneath the circular graph are the bar graphs, one for each satellite in view. Since the unit has twelve channels, it can dedicate one channel per visible satellite. The taller the bar on the graph, the better the unit is receiving the signals from the satellite. The Position Error (horizontal position error) shown in the upper left corner of the screen is the expected error from a benchmark location. In other words, if the position error shows 50 feet, then the position shown by the unit is estimated to be within 50 feet of the actual location. This also gives you an indicator of the fix quality the unit currently has. The smaller the position error number, the better (and more accurate) the fix is. If the position error flashes, then the unit hasnt locked onto the satellites, and the number shown isnt valid. Customizing the Status Screen Many of the digital displays can be customized to show different digital data than the defaults. To customize this screen, press the MENU key while the Status screen is showing. Scroll down to the bottom of this menu to the Customize label and select it. The Position Error bar flashes, signifying that the window can be changed. Press the MENU key to show a menu of available options. Choose the data that you want shown at this location, then press the ENT key to select it. To change another, simply press the down arrow key. The ID bar will flash on the selected box. Repeat the above steps until youre finished customizing. Press the EXIT key to stop the bar from flashing. Navigation This screen has a compass rose that not only shows your direction of travel, but also the direction to a recalled waypoint. The navigation screen looks like the one at right when youre not navigating to a waypoint. Your position is shown by an arrow in the center of the screen. Your trail history, or path youve taken is depicted by the line extending from the arrow. The large arrow pointing down at the top of the compass rose indicates the current track (direction of travel) you are taking.
When navigating to a waypoint, the Navigation screen looks like the one at right. Your ground speed, track, distance and bearing to waypoint, and course are all shown digitally on this screen. Closing speed is also known as velocity made good. Its the speed that youre making towards the waypoint. The current cross track error is shown in the Off Course box. This is the distance you are off-course to the side of the desired course line. The course line is an imaginary line drawn from your position when you started navigating to the destination waypoint. Its shown on the steering screen as a vertical dotted line. Lines on either side of the present position show the current cross track error range The default for the cross track error range is 0.20 mile. For example, if the present position symbol touches the right cross track error line, then you are.20 mile to the right of the desired course. You need to steer left to return to the desired course. You can use the ZIN or ZOUT keys to change the cross track error range. A circle depicting your destination (waypoint) appears on the screen as you approach the waypoint as shown on the screen at right. Travel Time is the time that it will take to reach your destination at your present closing speed. Arrival Time is the local time that it will be when you arrive at the destination, based upon your present closing speed and track. Customizing the Navigation Screen Many of the digital displays can be customized to show different digital data than the defaults shown above. This is done exactly like the customization of the Status screen. See page 31 for instructions to customize this screen. Map There are five different mapping screens: Full Map, Digital Data, Two Position Formats, Two Maps, and Map with Sonar.

Create a Route To create a route, first press the MENU key twice, highlight the Route Planning label, and press the ENT key. The screen shown at right appears.
This unit can store up to 100 routes. To create a route, highlight New Route and press the ENT key. The screen at right appears. The routes name appears at the upper left corner of the screen. Select it to change the name, if desired. Now press the down arrow key until Waypoints is highlighted. Now press the ENT key. End of route is highlighted. Press the ENT key again. The Edit Route Waypoints menu appears as shown at right. You can add waypoints to the route from the map or from the waypoint list. In this example, we chose to add from the waypoint list. Selecting Add Waypoint brings up the Find Waypoint screen shown at right. To add saved waypoints to the route, select Saved from the Subcategory list. To create a new waypoint for the route, select New. In this example, were using previously saved waypoints,
so Saved was chosen. A new menu appears, letting you choose from the list of names or from the nearest waypoint to your present position. In this example, Name was chosen. The screen at right appears.
Select the first waypoint for the route from the list and press the ENT key. The screen at right appears. Data for the selected waypoint shows on the left side of the screen. Add To Route is highlighted. To add this waypoint to the route, simply press the ENT key. The unit returns to the Edit Route screen with the first waypoint shown in the list as shown at right. To add another waypoint to the list, first highlight End of route and press the ENT key. (Note: if you do not highlight End of route, the unit will place each waypoint that you select in front of the previous one, instead of after. This will result in a list of waypoints thats reversed from the desired list.) The Edit Route Waypoints menu reappears. Continue selecting waypoints until all of the waypoints for the route have been chosen. When youre finished making the route, press the EXIT key to erase the menus.
Follow a Route To navigate a route, press the MENU key twice, then select Route Planning. Using the arrow keys, highlight Saved Routes and press the ENT key. Select the desired route from the list. The Edit Route screen appears next.
Now highlight Navigate and press the ENT key. The unit imediately begins showing navigation data to the first waypoint in the route. Once you reach the first waypoint, it will automatically switch to the second waypoint and so on, until you reach the last waypoint in the route. The unit will continue to show navigation data to the last waypoint in the route until you select Cancel Navigation from the second main menu page.
GPS Simulator The GPS simulator lets you use the unit as if a GPS module was attached. You can set the starting location in latitude/longitude (Starting Position) or from a stored waypoint location (Select Starting Waypoint). You can steer your position on the map by using the arrow keys (Steer With Arrows) or by setting the track

ALARMS This unit has several GPS alarms. (Sonar alarms are covered in the sonar section of this manual.) You can set an arrival alarm to flash a warning message and sound a tone when you cross a preset distance from a waypoint. For example, if you have the arrival alarm set to.1 mile, then the alarm will flash a message when you come within.1 mile of the recalled waypoint. The course deviation indicator alarm (CDI) can warns when your track drifts too far to the right or left of the course line to the waypoint. For example, if the alarm is set to.1 mile, then the alarm flashes a message if you drift.1 of a mile or more to the right or left of the line to the waypoint. The anchor alarm is triggered when you drift outside of a preset radius. Again, using the.1 mile as an example, if youre anchored and your boat moves more than.1 of a mile, the alarm will flash a message and sound a tone. To use any of these alarms, first press the MENU key twice, then select the Alarms menu. Next, select GPS Alarms. A screen similar to the one shown at right appears. Press the up or down arrow key to select the desired alarm, then press the ENT key to turn it on or off. To adjust an alarms distance, highlight the alarms Distance menu, then press the ENT key to select it. Use the arrow keys to increase or decrease the alarms distance. When youre finished, press the EXIT key to erase this menu. Important Alarm Notes: Anchor Alarm - Since civilian users dont receive the accuracy given to military users, the anchor alarm may be triggered even when youre sitting still. This typically happens when using small (less than.05 mile) anchor alarm ranges. If you have a DGPS beacon receiver connected to this unit, smaller ranges may be usable. Arrival Alarm - If you set the arrival alarms distance to a small number, and you run a route (see the routes section), this unit may not show navigation data to the next waypoint, once you arrive at the first one, since you may not be able to come close enough to the first waypoint to trip the arrival alarm.

SONAR TROUBLESHOOTING

If your unit is not working, or if you need technical help, please use the following troubleshooting section before contacting the factory customer service department. It may save you the trouble of returning your unit. Unit wont turn on: 1. Check the power cables connection at the unit. Also check the wiring. 2. Make certain the power cable is wired properly. The red wire connects to the positive battery terminal, black to negative or ground. 3. Check the fuse. 4. Measure the battery voltage at the units power connector. It should be at least 11 volts. If it isnt, the wiring to the unit is defective, the battery terminals or wiring on the terminals are corroded, or the battery needs charging. Unit freezes, locks up, or operates erratically: 1. Electrical noise from the boats motor, trolling motor, or an accessory may be interfering with the sonar unit. Rerouting the power and transducer cables away from other electrical wiring on the boat may help. Route the sonar units power cable directly to the battery instead of through a fuse block or ignition switch 2. Inspect the transducer cable for breaks, cuts, or pinched wires. 3. Check both the transducer and power connectors. Make certain both are securely plugged in to the unit. Weak bottom echo, digital readings erratic, or no fish signals: 1. Make certain transducer is pointing straight down. Clean the face of the transducer. Oil, dirt, and fuel can cause a film to form on the transducer, reducing its effectiveness. If the transducer is mounted inside the hull, be sure it is shooting through only one layer of fiberglass and that it is securely bonded to the hull. Do NOT use RTV silicone rubber adhesive or Marinetex 2. Electrical noise from the boats motor can interfere with the sonar. This causes the sonar to automatically increase its Discrimination or noise rejection feature. This can cause the unit to eliminate weaker signals such as fish or even structure from the display.

When sending a product for repair, we recommend you do the following: 1. Always use the original shipping container and filler material the product was packed in when shipping your product. 2 Always insure the parcel against damage or loss during shipment. Lowrance does not assume responsibility for goods lost or damaged in transit. 3. For proper testing, repair, and service, send a brief note with the product describing the problem. Be sure to include your name, return shipping address, and a daytime telephone number.
Accessory Ordering Information
To order accessories such as power cables or transducers, please contact: 1. Your local marine dealer. Most quality dealers that handle marine electronic equipment should be able to assist you with these items. Consult your local telephone directory for listings. 2. Canadian customers only can write: Lowrance/Lowrance Canada, 919 Matheson Blvd., E. Mississauga, Ontario L4W2R7 or fax 905-629-3118

(U.S.A. Only)

We back your investment in quality products with quick, expert service and genuine Lowrance replacement parts. If youre in the United States and you have questions, please contact the Factory Customer Service Department using our toll-free number listed below. You must send the unit to the factory for warranty service or repair. Please call the factory before sending the unit. You will be asked for your units serial number (shown above). Use the following toll-free number:

800-324-1356

U.S.A.only. Monday through Friday, except holidays.
Your unit is covered by a full one-year warranty. (See inside for complete warranty details.) If your unit fails and the failure is not covered by the original warranty, Lowrance has a flat-rate repair policy that covers your unit and accessories packed with the unit at the factory. There is a 180day warranty on all non-warranty repairs from the factory, which is similar to the original warranty, but is for 180 days rather than one year. For further details, please call us at the above number.
Remember, non-warranty repairs are subject to Lowrances published flatrate charges and 180-day warranty.
LOWRANCE ELECTRONICS, INC 12000 E. SKELLY DRIVE TULSA, OK 74128 800-324-1356 http://www.lowrance.com
To order accessories such as power cables or transducers, please contact:
1) Your local marine dealer. Most quality dealers that handle marine electronic equipment should be able to assist you with these items. Consult your local telephone directory for listings. 2) LEI Extras, Inc. P.O. Box 129 Catoosa, OK 74015-0129 or call 800-324-0045 (USA orders only.) or see their website at http://www.lei-extras.com

LITHO IN U.S.A.

988-0133-49