How to use this manual: typographical conventions
Many instructions are listed as numbered steps. The keypad and arrow "keystrokes" appear as boldface type. So, if you're in a real hurry (or just need a reminder), you can skim the instructions and pick out what menu command to use by finding the boldface command text. The following paragraphs explain how to interpret the text formatting for those commands and other instructions: Arrow Keys The arrow keys control the movement of dotted cross-hair lines on your mapping screen called the cursor. The arrow keys also control a horizontal line depth cursor on the sonar screen. The arrow keys help you move around the menus so you can execute different commands. They are represented by symbols like these, which denote the down arrow key, the up arrow, the left arrow and the right arrow: . 10
Keyboard The other keys perform a variety of functions. When the text refers to a key to press, the key is shown in bold, sans serif type. For example, the "Enter/Icons" key is shown as ENT and the "Menu" key is shown as MENU. Menu Commands A menu command or a menu option will appear in small capital letters, in a bold sans serif type like this: ROUTE PLANNING. These indicate that you are to select this command or option from a menu or take an action of some kind with the menu item. Text that you may need to enter or file names you need to select are show in italic type, such as trail name. Instructions = Menu Sequences Most functions you perform with your unit are described as a sequence of key strokes and selecting menu commands. We've written them in a condensed manner for quick and easy reading. For example, instructions for navigating a trail would look like this: 1. From the Map Page, press MENU|MENU| to MY TRAILS|ENT. 2. Press to Trail 1|ENT|| to NAVIGATE|ENT. 3. You are asked to wait while it converts the trail into a route. 4. The wait message disappears and the unit begins showing navigation information along the trail. Translated into complete English, step 1 above would mean: "Start on the Map Page. Press the Menu key twice. Next, repeatedly press (or press and hold) the down arrow key to scroll down the menu and select (highlight) the My Trails menu command. Finally, press the Enter key." Step 2 would mean: "Press the down arrow key repeatedly to scroll to the trail named Trail 1, and press Enter. Next, press the right arrow key and then the down arrow key to highlight the Navigate command, then press Enter."

Section 2: Installation & Accessories

Preparations

You can install the sonar and GPS systems in some other order if you prefer, but we recommend this installation sequence: Caution: You should read over this entire installation section before drilling any holes in your vehicle or vessel! 1. Determine the approximate location for the sonar/GPS unit, so you can plan how and where to route the cables for the antenna, transducer and power. This will help you make sure you have enough cable length for the desired configuration. 2. Determine the approximate location for the transducer and its cable route. 3. Determine the approximate location for the GPS antenna module and its cable route. 4. Determine the location of your battery or other power connection, along with the power cable route. 5. Install the transducer and route the transducer cable to the sonar/GPS unit. 6. Install the GPS antenna and route the antenna cable to the sonar/GPS unit. 7. Install the power cable and route it to the sonar/GPS unit. 8. Mount the sonar/GPS unit to the bracket.

Transducer Installation

These instructions will help you install your Skimmer transducer on a transom, on a trolling motor or inside a hull. These instructions cover both single- and dual-frequency Skimmer transducers. Please read all instructions before proceeding with any installation. The smaller single-frequency Skimmers typically use a one-piece, stainless steel mounting bracket. The larger dual-frequency Skimmers typically use a two-piece, plastic mounting bracket. The trolling motor mount uses a one-piece plastic bracket with an adjustable strap. These are all "kick-up" mounting brackets. They help prevent damage if the transducer strikes an object while the boat is moving. If the transducer does "kick-up," the bracket can easily be pushed back into place without tools. 13
Read these instructions carefully before attempting the installation. Determine which of the mounting positions is right for your boat. Remember, the transducer installation is the most critical part of a sonar installation. NOTE: The following installation types also call for these recommended tools and required supplies that you must provide (supplies listed here are not included):

Fill with resin Fill with resin Flotation material Inner hull

Epoxy to hull first

Outer hull
Epoxy the transducer to a solid portion of the hull.
For example, some (but not all) manufacturers use a layer of fiberglass, then a core of balsa wood, finishing with an outer layer of fiberglass. Removing the inner layer of fiberglass and the balsa wood core exposes the outer layer of fiberglass. The transducer can then be epoxied directly to the outer layer of fiberglass. After the epoxy cures for 24 hours, fill the remaining space with polyester resin. When the job is finished, the hull is watertight and structurally sound. Remember, the sonar signal must pass through solid fiberglass. Any air bubbles in the fiberglass or the epoxy will reduce or eliminate the sonar signals. Testing Determines Best Location Ideally, the shoot-thru transducer should be installed as close to the transom as possible, close to the centerline. This will give you the best performance during high speed maneuvers.
Transducer location (high speed) Transducer location (trolling speed)
Shoot-thru-hull transducer locations for high speed or trolling speed operation.
To choose the proper location for shoot-thru-hull mounting, follow these testing procedures: (You may need a helper to complete these steps.) 1. Anchor the boat in about 30 feet of water. Add a little water to the sump of the boat. Plug the transducer into the sonar unit, turn it on, then hold the transducer over the side of the boat in the water. Adjust the sensitivity and range controls until a second bottom echo is seen on the display. (You'll need to turn off Auto Sensitivity, Auto Depth Range and ASP. Try a range setting that is two to three times the water depth. The harder (more rocky) the bottom, the easier it will be to get a second bottom signal.) Don't touch the controls once they've been set.

True bottom

Second bottom

Manual range setting

Example of a second bottom signal. Unit is in 30 feet of water, with range set at 80 feet and sensitivity set at 87 percent.
2. Next, take the transducer out of the water and place it in the water in the sump of the boat, face down. (The transducer face is shown in the figure on the following page.) Notice how the signal strength decreases. The second bottom signal will probably disappear and the bottom signal intensity will likely decrease. 3. Now move the transducer around to find the best location with the strongest possible bottom signal. If you find a spot with an acceptable bottom signal, mark the location and move on to step 4. If you can't get an acceptable bottom signal, try turning up the sensitivity by three or five keystrokes and then move the transducer around once more. If you find a spot that works, mark it and move on to step 4. If you have to turn up sensitivity by more than five keystrokes to get a good signal, the transducer should be mounted on the outside of the hull. This is especially true if you have to turn sensitivity all the way up to get a decent bottom signal. 26

percent of the fresh and salt water sport fishing applications. When you get into very deep salt water, 300 to 500 feet or deeper, the 50 kHz frequency is the best choice. The 200 kHz transducer will give you better detail and definition, but less depth penetration. The 50 kHz transducer will give you greater depth penetration, but a little less detail and less definition. (Remember, all sonar units typically read deeper in fresh water than in salt water.) There is a common exception to these rules of thumb. Some fishermen on freshwater lakes (or the ocean) using downriggers like to see them on the sonar. In many of those cases, you'll see a 50 kHz transducer frequency in use because the wider cone angle lets them watch the bait.
Sonar Features menu with a frequency of 200 kHz selected.
To change the frequency setting to 50 kHz: 1. From the Sonar Page, press MENU| to SONAR FEATURES|ENT. 2. Press |then press to 50 KHZ|ENT. 3. Press EXIT|EXIT to clear the menu. To change the frequency setting to 200 kHz: 1. From the Sonar Page, press MENU| to SONAR FEATURES|ENT. 2. Press |then press to 200 KHZ|ENT. 3. Press EXIT|EXIT to clear the menu.

HyperScroll

See the entry on Ping Speed, which controls the HyperScroll feature. 75

Log Sonar Chart Data

If you have an 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 play a recorded sonar chart log, see the entry in this section for Sonar Simulator). If you have a personal computer and Internet access, visit our web site, www.lowrance.com, and download the free Sonar Viewer and the emulator for your unit. These programs will allow you to replay sonar logs on your personal computer.
At left, the Sonar Page menu with the Log Sonar Chart Data command selected. At right, Sonar Chart Logging menu, with the Start Logging command selected. The menu says the MMC has 5.42 MB of free space, which will record the scrolling chart for 28 minutes and 44 seconds.
To record or log chart data: 1. Press MENU| to LOG SONAR CHART DATA|ENT. 2. To record data using the default settings, press ENT. The menu clears and the Sonar Page title bar shows the name of the file you are recording. Warning messages will appear as recording time begins to run out. NOTE: You can change any of the settings by using the cursor arrows to highlight different commands. Select FILE NAME if you want to change the name. Select CHART QUALITY if you want to lower the file quality and record for a longer period of time. After you've changed the settings, select START LOGGING and press ENT.

At left, Sonar Menu with Sensitivity command selected. At right, the Sensitivity Control Bar.
To adjust sensitivity in manual mode: 1. First, turn off Auto Sensitivity: from the Sonar Page, press MENU| to AUTO SENSITIVITY|ENT. 2. Press to SENSITIVITY|ENT and the Sensitivity Control Bar appears. Press or to pick a different sensitivity setting. When it's set at the desired level, press EXIT. To turn Auto Sensitivity back on: From the Sonar Page, press MENU| to AUTO SENSITIVITY|ENT|EXIT. NOTE: To return to the original factory setting for Auto Sensitivity, see the entry in this section on Reset Options. If sensitivity is in manual mode, the Reset Options command will switch back to Auto and reset the factory setting at the same time.
For quicker sensitivity adjustments, try leaving the Sensitivity Control Bar on the screen as the chart scrolls. You can see the changes on the screen as you press the up or down arrows. This is handy when there's a lot of clutter in the water, and you are matching the sensitivity to rapidly changing water conditions. 85

Sonar Chart Mode

The default color scheme for the sonar chart is the white background, but we offer other variations to suit your viewing preferences. The chart can be displayed in grayscale, reverse grayscale, blue background, white background, nightview, iceview, or bottom color tracking. To change the chart mode color scheme:+ 1. From the Sonar Page, press MENU| to SONAR FEATURES|ENT. 2. Press to SONAR CHART MODE|ENT. 3. Press or to Mode Name|ENT. 4. Press EXIT|EXIT to return to the Sonar Page.
Sonar Page & Sonar Chart Display Options
The Pages Menu offers five chart display options for dual-frequency models and four options for single-frequency models. To access them, press PAGES| or to SONAR| to Option Name|EXIT.
Pages Menu, showing sonar chart display options.
Full Sonar Chart This is the default mode used when the unit is turned on for the first time or when it's 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 or a transducer with a temp sensor built in) show at the top left corner of the screen. 86

At left, Main Menu with Sonar Setup command selected. Center, submenu with Sonar Simulator command selected. At right, Sonar Simulator menu, with simulator turned off (check box is unchecked).
NOTE: With Simulate Position checked, the simulator will automatically run the GPS simulator (if GPS data was recorded with the sonar log). 2. To use the default sonar chart log stored in the unit, press ENT|EXIT. The recorded chart begins scrolling across the screen, just as if you were on the water. 3. Turn off Sonar Simulator by pressing MENU|MENU| to SONAR SETUP|ENT| to SONAR SIMULATOR|ENT|ENT|EXIT.
"Play" symbol flashing Title bar with chart file name
Sonar Page, playing a recorded sonar chart in Sonar Simulator mode.
The Sonar Simulator can use sonar charts that you or a friend have recorded (logged) on a MMC card. (To see how, read the entry in this section on Log Sonar Chart Data.) To play back your own sonar chart, make sure the MMC containing the chart is installed, then: 92
1. Press MENU|MENU| to SONAR SETUP|ENT| to SONAR SIMULATOR|ENT. 2. Press to CHART USED|ENT. 3. Press or to select chart name|ENT| to SONAR SIMULATOR ON|ENT|EXIT. While you're in the Sonar Simulator menu, don't forget to check Simulate Position if you want to run the sonar and GPS simulators simultaneously. As you review sonar logs, you can create waypoints to mark the sites you want to revisit. While the simulator is running, you can switch from one chart log to another by opening the Sonar Simulator menu and using the instructions in step 2 to select a different chart.
There's more than one way to play a recorded sonar chart. You can also turn on the simulator from the MMC files list. Here's how: 1. Press MENU|MENU| to BROWSE MMC FILES|ENT|ENT. 2. Press or to file name|ENT| to PLAY|ENT|EXIT.
Select Browse MMC Files from the Main Menu.
NOTE: For some great practice, try running the Sonar Simulator and the GPS Simulator at the same time. This will really give you a feel for how the unit will work in the field. NOTE: If you turn on your unit before attaching a transducer, it may enter a demo mode. The words "demo mode" flash on the bottom of the screen and a sonar chart plays much like the simulator. Unlike the 93

At left, Sonar Page, normal view. Center, same view zoomed to 2X. Right, same view zoomed to 4X

Zoom Pan

Your unit has the handy ability to quickly zoom in on any portion of the water column with just the touch of an arrow key. The Zoom Pan feature lets you rapidly move the zoomed area up and down to different depths. By "pointing" your zoom at different portions of the chart as it scrolls, you can get a good, close-up look at structure or cover below you. To use Zoom Pan, switch to a manual depth Range setting (see page 69) and turn on 2X or 4X Zoom. Then, simply press or to pan up and down the water column.
Section 5: Sonar Troubleshooting
If your unit is not working, or if you need technical help, please use the following troubleshooting section before contacting the customer service department. It may save you the trouble of returning your unit for repair. For contact information, refer to the last page, just inside the back cover of this manual. Unit won't turn on 1. Check the power cable's connection at the unit. Also check the wiring. 2. Make sure 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 unit's power connector. It should be at least 10 volts. If it isn't, 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 boat's 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 unit's 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 the transducer and power connector. Make sure it's securely plugged in to the unit. Weak bottom echo, digital readings erratic, or no fish signals 1. Make sure the 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. When attaching a transducer to the inside of a hull, ONLY use the epoxy available from LEI (order information is inside the back cover). Do NOT use RTV silicone rubber adhesive or any other type of epoxy. The LEI epoxy is specially formulated so that it will cure properly for shoot-through applications. 2. Electrical noise from the boat's 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. 99

Satellite Status Page. Left view indicates unit has not locked on to any satellites and does not have a fix on its position. Center view shows satellites being scanned. Right view shows satellite lock-on with a 3D position acquired (latitude, longitude and altitude), and WAAS reception.
This screen shows a graphical view of the satellites that are in view. Each satellite is shown on the circular chart relative to your position. The point in the center of the chart is directly overhead. The small inner ring represents 45 above the horizon and the large ring represents the horizon. North is at the top of the screen. You can use this to see which satellites are obstructed by obstacles in your immediate area if the unit is facing north. The GPS receiver is tracking satellites that are in bold type. The receiver hasn't locked onto a satellite if the number is grayed out, therefore it isn't 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. NOTE: One of the data display options for the Satellite Status page is "Position Error" (horizontal position error), which can appear in one of the page's data boxes. If you turn on Position Error, it will show you the expected error from a benchmark location. In other words, if the Position Error box 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 dashes, then the unit hasn't locked onto the satellites, and the number shown isn't valid. (For details, see the Customize Page Displays entry in Sec. 8.) 107
The Satellite Status Page has its own menu, which is used for setting various options. (Options and setup are discussed in Sec. 8). To access the Satellite Status Page Menu, from the Status Page, press MENU. Navigation Page This screen has a compass rose that not only shows your direction of travel, but also the direction to a recalled waypoint. The page has two options, navigation with digital data and navigation with sonar. To get to the Navigation Page: Press PAGES| or to NAVIGATION. Press or |EXIT to select one of the two menu items. The navigation screen looks like the one below when you're not navigating to a waypoint or following a route or trail. Your position is shown by an arrow in the center of the screen. Your trail history, or path you've just taken, is depicted by the line extending from the arrow. The arrow pointing down at the top of the compass rose indicates the current track (direction of travel) you are taking.

After selecting the Two Maps option from Map menu you can modify the windows to be side by side or stacked one on top of the other as in the illustration above. The bottom map is the active map, indicated by the Active Map display at the top.
The following page contains a 12-step quick reference for the most basic GPS operations. If you don't want to carry the manual with you as you practice with the unit, you might consider photocopying this quick reference page and tucking it into your pocket.
Basic GPS Quick Reference
Start outdoors, with a clear view of the open sky. As you practice, try navigating to a location at least a few blocks away. Navigation in too small an area will constantly trigger arrival alarms. 1. Connect the unit to electric power and the antenna module. Make sure the MMC is in. (See complete installation details beginning on page 13.) 2. To turn on the unit, press and release PWR key. 3. Opening screen displays map of North America at the 4,000 mile zoom range. Rotate through the four main Page screens (Map Page, Satellite Status Page, Navigation Page and Sonar Page) by pressing PAGES| or to select Page Name|EXIT. Switch Pages to display Satellite Status Page. 4. Wait while unit locates satellites and calculates current position. Process is visible on Satellite Page. This takes an average of 1 minute or less under when it is unobstructed by terrain or structures. When the unit acquires position, a tone sounds and a position acquired message appears. 5. With position acquired, press PAGES key to display the Map Page, which gives you a bird's eye view. You can manipulate the map by: Zoom in closer to see greater detail: press ZIN (zoom in key.) Zoom out to see more area, less detail: press ZOUT (zoom out key.) Scroll map north, south, east or west using arrow keys . To stop scrolling and return to current position on map, press EXIT key. 6. Set a waypoint (Wpt 001) at your current position so you can navigate back here: press WPT|WPT. Waypoint symbol and "001" appears. 7. Zoom/scroll map to find a nearby object or location to go to. Use arrow keys to center cursor cross-hairs over the map object or location. 8. Navigate to the selected destination: press MENU|ENT|EXIT. Follow dotted course line on Map Page or compass bearing arrow on Navigation Page. 9. At destination, Arrival Alarm goes off; to clear it, press EXIT. Cancel navigation: press MENU|MENU| to CANCEL NAVIGATION|ENT| to YES|ENT. 10. Return to Wpt 1 by Navigate To Waypoint or Backtrack Trail. To Waypoint: press WPT| to SAVED|ENT|ENT|ENT. Use or to select Wpt 001, press ENT|ENT; follow navigation displays. Trail: press MENU|MENU| to MY TRAILS|ENT. Press to Trail 1|ENT|| to NAVIGATE|ENT| to NAVIGATE|ENT| to REVERSE|ENT| to NAVIGATE|ENT. (If arrival alarm sounds, press EXIT.) Follow navigation displays. 11. Back home, Arrival Alarm goes off; press EXIT. Cancel navigation: press MENU|MENU| to CANCEL NAVIGATION|ENT| to YES|ENT. 12. To turn off the unit, press and hold PWR key for three seconds. 116

To create and save a Waypoint: These first two techniques use the Quick Save method, the fastest and easiest way to create a waypoint.
Create Waypoint at Current Position While you are traveling, press WPT|WPT. The waypoint is saved and
automatically given a name with a sequential number, such as "waypoint 003." The waypoint symbol and number appear on the map.

Step 1. Step 2.

Step 3.

Step 4.

Sequence for setting a waypoint. Step 1: while traveling, press WPT twice to call up the Find Waypoint screen (seen in Step 2) and set a waypoint. Step 3: a message says the waypoint has been saved. Step 4: vehicle continues on its way; waypoint number and symbol are visible on map.
NOTE: The Quick Save method uses the default waypoint symbol until you edit an existing waypoint and change its symbol. (Edit Waypoint Symbol is described in Sec. 7.) After you have changed a waypoint 121
symbol, the unit will remember the one you chose and use it the next time you save a waypoint. To revert back to the default symbol, edit a waypoint and choose the original symbol, or use the Reset Options command (described in Sec. 8).

Create Waypoint on Map

1. Use the arrow keys to move the cursor to the place where you want to make a waypoint. 2. Press WPT|WPT. The waypoint is saved and automatically given a name with a sequential number, such as "waypoint 001." The waypoint symbol and number appear on the map.
Create Waypoint by Entering a Position 1. Press WPT| to SUBCATEGORY column| to NEW|ENT.
2. Press to ENTERED POSITION|ENT| to CREATE|ENT. 3. Press to LATITUDE|ENT. Enter the latitude by pressing or to change the first character, then press to the next character and repeat until the latitude is correct. Press ENT. 4. Press to LONGITUDE|ENT. Enter the longitude by pressing or to change the first character, then press to the next character and repeat until the longitude is correct. Press ENT, then EXIT|EXIT to return to the previous page display. The waypoint is saved and automatically given a name with a sequential number, such as "waypoint 001." The waypoint symbol and number appear on the map and in the waypoint list.

Navigate To a Waypoint

You can select any waypoint visible on the Map Page with the cursor, then use the Navigate to Cursor command (we'll describe how later in this section.) However, you can avoid scrolling the map to pick your waypoint if you use the Find Waypoint commands: 1. Press WPT| to SAVED|ENT. To look up the nearest waypoint, press to NEAREST|ENT; or, to look by name (and scroll through the entire waypoint list), press ENT. For this example, look by name. 2. If your waypoint list is a long one, you can spell out the waypoint name in the FIND BY NAME box to search for it. (Press or to change the first character, then press to move the cursor to the next character and repeat until the name is correct, then press ENT to jump to the list below.) 3. If the list is short, you can jump directly to the FIND IN LIST box by pressing ENT. Use or to select the waypoint name, press ENT and the waypoint information screen appears with the GO TO command selected. 4. To begin navigating to the waypoint, press ENT. 122

Visible symbol

Active symbol
Sequence for saving a trail and beginning a new one. Left, My Trails command. Center, the Trails Menu. The arrow to the right of Trail 1 indicates the trail is "active," and the check to the left indicates the trail is visible on the map display. The right figure shows the Edit Trail menu, with the Active command selected.
2. Press to the Active Trail Name|ENT. 3. Press to ACTIVE|ENT. This unchecks the Active option. 4. To return to the previous page, press EXIT|EXIT|EXIT|EXIT. As you leave the Edit Trail menu, you will notice that a new trail starts with a new sequential number. In the example figure below, the new trail is number 2, showing zero points. Note that Trail 1 is inactive, but it is still visible on the map.
New trail, named "Trail 2," is created when Trail 1 is made inactive. Any new travel will be recorded in this trail, which is active and visible. Trails do not need to be visible in order to be active.
You can save and recall up to 10 different plot trails, which can be copied to your MMC for archiving or for transfer to your MapCreate software. 127
Another quick way to stop recording one trail and begin a new one is to use the New Trail command: Press MENU|MENU| to MY TRAILS|ENT|ENT. Caution: You also have the option of completely turning off trail recording, under the trail Options command. However, if the Update Active Trail option is turned off, it will cancel the automatic trail creation feature.

Displaying a Saved Trail

The active trail is automatically displayed on the map (the "Visible" option) with the factory default settings. You can selectively turn trail display off and on for any saved or active trail. In the Saved Trails List, visible trails have a check mark in front of the trail name. To turn off trail display: 1. Press MENU|MENU| to MY TRAILS|ENT. 2. Press | to enter the Saved Trail list, then use or to select the desired Trail Name|ENT. 3. Press to ACTIVE| to VISIBLE|ENT. To return to the previous page, press EXIT|EXIT|EXIT|EXIT. To turn on trail display: 1. Press MENU|MENU| to MY TRAILS|ENT. 2. Press | to enter the Saved Trail list, then use or to select the desired Trail Name|ENT. 3. Press to ACTIVE| to VISIBLE|ENT. To return to the previous page, press EXIT|EXIT|EXIT|EXIT.

Navigating Trails

There are three methods for following a trail: visual trailing, navigating a trail (forward) and backtracking a trail (backward). Try each method to see which you prefer. Visual trailing is the simplest method. It uses only the Map Page and requires no menu commands at all. The technique works the same if you are running a trail forward (from start to end) or backward (from end to start.) However, visual trailing provides no navigation information during the trip, such as the time to your destination. 128

Route Planning command on Main Menu, left; Routes menu, center; Edit Route menu, right. Navigate command is selected in the Action box.
2. Press to select route name|ENT| to NAVIGATE|ENT. 142
3. Upon arrival at your destination, cancel navigation: press MENU|MENU| to CANCEL NAVIGATION|ENT| to YES|ENT. The following figures show what the Navigation Page and Map Page look like while navigating a route. Navigate a Route in Reverse Here's how you run a route backward, from the end waypoint to the beginning waypoint: 1. From the NAVIGATION PAGE, press MENU|ENT or from the MAP PAGE, press MENU|MENU| to ROUTE PLANNING|ENT. 2. Press to select route name|ENT| to NAVIGATE| to REVERSE|ENT| to NAVIGATE|ENT. 3. Upon arrival at your destination, cancel navigation: press MENU|MENU| to CANCEL NAVIGATION|ENT| to YES|ENT.

Figure 1. Figure 2.

Navigating along a route: Fig. 1 shows the Navigation Page at the start of a route, heading straight for the first waypoint (Wpt 1). In Fig. 2, the traveler has arrived at Wpt 1; the arrival alarm has been triggered and the bearing arrow on the compass rose has turned to point toward Wpt 2, off to the east. In Fig. 3 the traveler has turned east on his new course and is heading straight for Wpt 2, which is 2.37 miles away. Fig. 4 shows route navigation on the Map Page. In this figure, the traveler has reached Wpt 2 and is half-way along the leg between Wpts 2 and 3.

Trails

Delete a Trail This is the command used to delete a trail: Press MENU|MENU| to MY TRAILS|ENT| to trail name|ENT| to DELETE TRAIL|ENT| to YES|ENT.
You can also delete all trails at once: 1. Press MENU|MENU| to MY TRAILS|ENT. 2. Press to DELETE ALL|ENT| to YES|ENT. Edit a Trail Name To edit a trail name: press MENU|MENU| to MY TRAILS|ENT| to trail name|ENT|ENT. Press or to change the first character, then press to the next character and repeat until the name is correct. Press ENT then EXIT|EXIT|EXIT|EXIT to return to the previous page display.
You can quickly call up the Edit Trail menu by selecting a trail on the map with the cursor. Simply move the cursor over a trail and a pop-up box appears. Press WPT and the Edit Trail menu opens.
Left, trail selected with map cursor. The pop-up box shows distance and bearing from current position to the selected point on the trail. Right, the Edit Trail menu.

Menus for changing coordinate system used to display positions.
To get to Coordinate System Selection: 1. Press MENU|MENU| to GPS SETUP|ENT. 2. Press to COORDINATE SYSTEM|ENT. This unit can show a position in degrees (36.14952); degrees, minutes and thousandths of a minute (36 28.700'); or degrees, minutes, seconds and tenths of a second (36 28' 40.9"). It can also show position in: UTM (Universal Transverse Mercator) projection; MGRS (Standard); MGRS (Standard + 10); Map Fix; Loran TD; British, Irish, Finnish, German, New Zealand, Swedish, Swiss, Taiwan and Greek. UTM's are marked on USGS topographic charts. This system divides the Earth into 60 zones, each 6 degrees wide in longitude. 152
British, Irish, Finnish, German, New Zealand, Swedish, Swiss, Taiwan, and Greek grid systems are the national coordinate system used only in their respective countries. In order to use these grid systems, you must be in the respective country. This unit will pick the matching datum for you when you select the grid. See the entry on Map Datum Selection for more information. The Military Grid Reference System (MGRS) uses two grid lettering schemes, which are referred to as standard and standard + 10 MGRS on this unit. Your position and datum in use determines which one to use. If you use standard, and your position is off significantly, then try the alternate. NOTE: When the position format is changed, it affects the way all positions are shown on all screens. This includes waypoints. To change the coordinate system, press ENT while COORDINATE SYSTEM is highlighted. Press the or arrow keys to highlight the desired format. Press ENT to select it. Press EXIT to close the menus. To setup Loran TD NOTE If the Loran TD conversion is chosen, you must enter the local Loran chain identification for the master and slaves. Do this by selecting "Setup Loran TD" at the bottom of the "Coordinate System" menu and select the ID. Press EXIT to close this menu.

Configure Loran TD menu.

Map Fix
Map Fix is used with charts or maps. This system asks for a reference position in latitude/longitude, which you take from a marked location 153
on the map. It then shows the present position as distance on the map from that reference point. For example, if it shows a distance of UP 4.00" and LEFT 0.50", you then measure up four inches and to the left a half-inch from the reference point on the map to find your location. To configure a map fix: To use this format, you need to follow these steps in order. First, take your map of the area and determine a reference latitude/longitude. (Note: in order for this system to work, the latitude/longitude lines must be parallel with the edge of the map. USGS maps are parallel, others may not be. Also, this works better with smaller scale maps, such as 1:24000.) The reference position can be anywhere on the map, but the closer it is to your location, the smaller the numbers will be that you'll have to deal with. Once you've decided on a reference position, you can save it as a waypoint. See the waypoint section for information on saving a waypoint. Save the reference position as a waypoint. Exit from the waypoint screens. 1. Press MENU|MENU| to GPS SETUP|ENT. 2. Press to COORDINATE SYSTEM|ENT. 3. Press to SETUP MAP FIX|ENT. The screen below appears, and MAP SCALE is highlighted. Press ENT and enter the map's scale. This is generally at the bottom of the paper map. It's shown as a ratio, for example 1:24000. Press EXIT and the unit returns to the Configure Map Fix screen.

NEWS RELEASE

FOR IMMEDIATE RELEASE July 19, 2006
Contact: Steve Wegrzyn , Mgr. PR & Advertising 918.438.8622 / 800.324.4871 stevew@lowrance.com 12000 E. Skelly Dr. Tulsa,OK 74128-2486
Lowrance Introduces Full-Size, All-Season Fishfinder & Mapping GPS Portable with New LMS-334c iGPS IceMachine
TULSA, Oklahoma Lowrance Electronics, Inc., the leader in recreational marine electronics innovation since 1957, is introducing a new dimension in year-round fishfinding and navigation portability, performance, versatility and affordability with the new LMS-334C iGPS IceMachine. As the newest addition to the companys IceMachine line of complete, portable, combo sonar/GPS packages, the LMS-334C iGPS IceMachine offers expanded performance and functionality including high-detail plug-&-play mapping options with hydrographic depth contours for successful fishing on-the-ice and on-the-water. The LMS-334C iGPS IceMachine includes everything for all-season enjoyment. For fixed mounting on a boat, it comes with power cable, gimbal bracket and a 200 kHz transom-mount Skimmer transducer with water temp sensor. For ice fishing, the angler can easily transfer the head unit to a well-endowed pack for go-anywhere portability. The pack includes a special 200 kHz bullet-shaped transducer and special swing-out bracket system for ice fishing; internal molded tray with battery well and tie-downs; a 12-volt sealed rechargeable battery and charger; plus a durable, waterrepellent soft pack nylon carrying case with sure-grip handle, dual zippers, and rubberized non-stick base. This complete system for boat or ice has a suggested U.S. retail price of $799.00. With remarkable color clarity and sonar/mapping GPS detail even in sunlight, the LMS-334C iGPS IceMachine touts a larger, super-bright, 5-inch diag. Lowrance SolarMAX 256-color TFT display with sharp 480x480 pixel resolution. The TFT display technology optimizes cold climate performance, even in extremes to -22 F (-30 C) without loss of viewing clarity or speed of screen updates. Advanced cold cathode illumination backlights screen and keypad. The LMS-334C iGPS IceMachine provides fully-portable precision navigation, with go-anywhere convenience, whether used on ice, on a boat, or even on an ATV or snowmobile. The internal GPS+WAAS receiver-antenna delivers quick satellite lock-ons and enhanced position accuracy to 3 m (under 10 feet) at select WAAS locations. Also built-in is a custom Lowrance color background map of major inland, Great Lakes and coastal waters for the continental U.S. and Hawaii, as well as mapping coverage of metro areas, select major streets and highways, interstate exit services and more. The LMS-334C iGPS IceMachine includes the Lowrance industry innovation of a waterproof slot to plug-&-play a host of higher-detail mapping options, preloaded on MMC/SD memory cards, such as Lowrance FreedomMaps, Fishing Hot Spots Elite, LakeMaster ProMaps, NauticPath coastal and Navionics electronic charts. With water depth contours in both inland and marine card options, the LMS-334C iGPS IceMachine offers the angler ultimate navigation versatility and vital locational detail to aid fishing success. For fishfinding, the LMS-334C iGPS IceMachine features 2,400 watts peak-to-peak transmit power (300 watts RMS) with a depth capability to 900 feet (274 m), while delivering excellent shallow water performance. Both of the included transducers produce up to 60 of wide fish-detection coverage when using high sensitivity settings. - more -
New Lowrance LMS-332c iGPS IceMachine Page 2
Anglers also enjoy choices of full- and split-screen scrolling sonar graph viewing, as well as real-time sonar readings with an exclusive full-screen LCD flasher mode. All modes feature dynamic COLORLINE to separate fish and structure from the bottom, and to define bottom composition and hardness. In fact, this new full-size model continues the revolutionary IceMachine approach to applying the scrolling sonar graph mode for more effective stationary ice fishing. The highly-detailed color-coded graph depicts targets as horizontal lines, and fish and lure movements vertically, in a way that many anglers find easier to read than a flasher. (See exhibits.) The LMS-334C iGPS IceMachine comes fully loaded with pro-proven Lowrance features for all-climate performance. On the sonar side, there are multiple choices of display color modes to help reveal targets hidden by underwater cover; adjustable Ping Speed with automatic HyperScroll to reveal targets at higher boat speeds; 2X and 4X zoom with vertical pan; Advanced Signal Processing (ASP) for automatic, hands-free operation; as well as shallow-deepfish-zone alarms. On the GPS side, features include storage for 1,000 waypoints and event markers each, and 100 routes with up to 100 waypoints per route; up to 100 savable and retraceable plot trails with up to 10,000 points in any trail (trails can be customized in a choice of colors and patterns); 42 different icons to mark favorite spots; and 40 map display ranges, from.02 to 4,000 miles, with easy zoom-in/-out control. The LMS-334C iGPS IceMachine also features back-up memory security for the users sonar settings and GPS data, plus an Overlay Data feature to display GPS data over sonar screens, and sonar data over GPS displays. Sealed and waterproof for use even in harsh environments, satisfaction is backed by a full one-year warranty. For more information on the complete line of Lowrance performance productsand for free tips, tutorials, emulators, and where to buyvisit www.lowrance.com or call 1-800-324-1356. ### EXHIBITS

Using scrolling sonar graph for ice fishing. Target echoes display as straight lines scrolling from right to left, showing smaller lure or bait echoes as thin blue/black lines. Stronger, larger fish targets show as wider, yellow/red lines. Since the smallest lure or bait jigging shows as a jagged line, its easy to see where to raise or lower the presentation to the exact depth where game fish are hanging.
On-the-water sonar. Fishing from a moving boat, the LMS-334c iGPS IceMachine reveals bottom density, structure, thermoclines, baitfish clusters, and more importantly, game fish as arches.
High-detail mapping options. In addition to the built-in, enhanced U.S. background map, a waterproof slot accepts a wide choice of higherdetail plug-&-play mapping options preloaded on MMC/SD memory cards up to 2GB. Displaying water depth contours is a vital angler aid in choosing where to fish.on ice or water.
Fishing Hot Spots is a registered trademark of Fishing Hot Spots, Inc. LakeMaster is a registered trademark of WayPoint Technology, Inc. Navionics is a registered trademark of NAVIONICS, Inc.