Lowrance LCX111C Manual
Lowrance
Skibsradar
LCX111C
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Pub. 988-0151-311
www.lowrance.com
LCX-25C; LCX-26C HD
LCX-110C; LCX-111C HD
Fish-finding Sonar & Mapping GPS
Operation Instructions
Copyright © 2005 Lowrance Electronics, Inc.
All rights reserved.
No part of this manual may be copied, reproduced, republished, transmitted or
distributed for any purpose, without prior written consent of Lowrance
Electronics. Any unauthorized commercial distribution of this manual is
strictly prohibited.
Lowrance is a registered trademark of Lowrance Electronics, Inc.
MapCreate, FreedomMaps, and NauticPaths are trademarks of
LEI. Fishing Hot Spots is a registered trademark of Fishing Hot Spots
Inc. Navionics is a registered trademark of Navionics, Inc. NMEA
2000 is a registered trademark of the National Marine Electronics
Association.
Points of Interest Data in this unit are by infoUSA,
copyright 2001-2005, All Rights Reserved. infoUSA is a
trademark of infoUSA, Inc.
eXitSource Database, copyright 2001-2005 Zenrin Co.
Ltd. Exit Authority and eXitSource are trademarks of
Zenrin Co. Ltd.
Additional mapping data: copyright 2005 by Transas Ltd.; copyright
2005 by Maptech Inc.
Lowrance Electronics may find it necessary to change or end our
policies, regulations and special offers at any time. We reserve the right
to do so without notice. All features and specifications subject to change
without notice. All screens in this manual are simulated. On the cover:
GlobalMap® 7600C HD shown.
NMEA 2000® Certification Pending.
For free owner's manuals and other information,
visit our web site:
www.lowrance.com
Lowrance Electronics Inc.
12000 E. Skelly Dr.
Tulsa, OK USA 74128-2486
Printed in USA.
i
Table of Contents
Section 1: Read Me First!........................................................ 1
How Your Sonar Works ................................................................ 3
How Your GPS Works .................................................................. 4
Introduction to GPS and WAAS................................................... 5
How to use this manual: typographical conventions .................. 8
Section 2: Installation & Accessories.................................... 9
Preparations.................................................................................. 9
Transducer Installation................................................................ 9
Recommended Tools and supplies.......................................... 10
Selecting a Transducer Location............................................ 10
How low should you go?.......................................................... 12
Shoot-thru-hull vs. Transom Mounting ................................. 12
Transom Transducer Assembly And Mounting..................... 13
Hulls With Floatation Materials ........................................ 20
Testing Determines Best Location......................................... 21
Shoot-thru-hull Installation ................................................... 23
Speed/Temperature Sensors................................................. 25
GPS Antenna/Receiver Module .................................................. 26
Connecting Directly to the Unit ............................................. 27
Connecting to a NMEA 2000 Network................................... 28
Power Connections...................................................................... 29
Powering a NMEA 2000 Buss .................................................... 30
Powering Your Unit .................................................................... 30
NMEA 2000 Cable Connections ................................................. 32
NMEA 0183 Wiring (Data cable) ........................................... 32
Mounting the Unit: Bracket or In-Dash .................................... 34
MMC or SDC Memory Card Installation................................... 38
Other Accessories........................................................................ 39
MMC and MapCreate ............................................................. 39
Switch Boxes ........................................................................... 40
External Speaker .................................................................... 40
Face Cover ............................................................................... 41
Section 3: Basic Sonar Operation ....................................... 43
Keyboard ..................................................................................... 43
Power/lights on and off ............................................................... 44
Main Menu .................................................................................. 45
Pages ........................................................................................... 46
Satellite Status Page .............................................................. 46
Navigation Page...................................................................... 47
Map Page................................................................................. 47
Sonar Page .............................................................................. 48
Sonar Quick Reference .......................................................... 51
ii
Sonar Operations ........................................................................ 52
Fish Symbols vs. Full Sonar Chart ........................................ 54
Other Free Training Aids ....................................................... 54
Section 4: Sonar Options & Other Features..................... 57
ASP (Advanced Signal Processing)......................................... 57
Alarms ......................................................................................... 58
Depth Alarms .......................................................................... 58
Zone Alarm .............................................................................. 59
Fish Alarm............................................................................... 60
Calibrate Speed........................................................................... 60
Chart Speed................................................................................. 61
ColorLine.................................................................................. 61
Depth Cursor............................................................................... 63
Depth Range - Automatic ........................................................... 64
Depth Range - Manual ............................................................... 65
Depth Range - Upper and Lower Limits ................................... 65
FasTrack.................................................................................. 66
Fish I.D. (Fish Symbols & Depths) ......................................... 67
FishTrack................................................................................. 69
Frequency (Change Transducer Frequency) ............................. 69
HyperScroll.............................................................................. 70
Log Sonar Chart Data ................................................................ 70
Noise Rejection............................................................................ 71
Overlay Data ............................................................................... 71
Overlay Data Style.................................................................. 74
Ping Speed & HyperScroll....................................................... 75
Reset Options .............................................................................. 76
Reset Water Distance ................................................................. 77
Set Keel Offset ............................................................................ 77
Sensitivity & Auto Sensitivity.................................................... 78
Sonar Chart Mode....................................................................... 80
Sonar Page & Sonar Chart Display Options ............................. 80
Full Sonar Chart ..................................................................... 81
Split Zoom Sonar Chart.......................................................... 82
Digital Data/Chart .................................................................. 82
Customize Page Displays ........................................................... 82
FlashGraf............................................................................. 83
Map With Sonar Split Screen................................................. 84
Sonar Simulator.......................................................................... 84
Stop Chart ................................................................................... 86
Surface Clarity............................................................................ 87
Upper and Lower Limits ............................................................ 88
Zoom & Zoom Bar ....................................................................... 88
iv
Trails ......................................................................................... 134
Delete a Trail ........................................................................ 134
Edit a Trail Name ................................................................. 135
Edit a Trail Color .................................................................. 135
Edit a Trail Pattern .............................................................. 135
Utilities...................................................................................... 136
Alarm Clock........................................................................... 136
Sun/Moon Rise & Set Calculator.......................................... 136
Trip Calculator...................................................................... 136
Trip Down Timer................................................................... 136
Trip Up Timer ....................................................................... 136
Waypoints.................................................................................. 136
Delete a Waypoint................................................................. 136
Edit a Waypoint .................................................................... 137
Selecting a Waypoint ............................................................ 137
Set a Waypoint by Average Position .................................... 137
Set a Waypoint by Projecting a Position.............................. 138
Section 8 System & GPS Setup Options ...........................139
Alarms ....................................................................................... 139
Auto Satellite Search................................................................ 140
Check MMC Files and Storage Space...................................... 140
Communications Port Configuration ....................................... 141
Configure NMEA ...................................................................... 141
Coordinate System Selection.................................................... 142
Map Fix ..................................................................................... 143
Customize Page Displays ......................................................... 145
GPS Simulator .......................................................................... 146
Simulating Trail or Route Navigation ................................. 146
Hide GPS Features ................................................................... 147
Initialize GPS............................................................................ 147
Map Auto Zoom......................................................................... 148
Map Data................................................................................... 148
Pop-up Map Info.................................................................... 148
Map Boundaries .................................................................... 149
Fill Water With White .......................................................... 149
Map Overlays (Range Rings; Lat/Long Grid) ...................... 149
Map Datum Selection ............................................................... 149
Map Detail Category Selection................................................. 150
Map Orientation ....................................................................... 151
Navionics Charts..................................................................... 152
Port Information ................................................................... 153
Tidal Current Information ................................................... 154
Tide Information ................................................................... 156
v
Overlay Data ............................................................................. 158
Pop-up Help............................................................................... 164
Reset Options ............................................................................ 164
Screen Contrast and Brightness .............................................. 165
Set Language ............................................................................ 166
Set Local Time .......................................................................... 166
Show WAAS Alarm................................................................... 167
Software Version Information.................................................. 168
Sounds and Alarm Sound Styles.............................................. 168
Track Smoothing....................................................................... 169
Trail Options ............................................................................. 169
Delete All Trails .................................................................... 170
Update Trail Option.............................................................. 170
Update Trail Criteria (Auto, Time, Distance) ................. 170
Trail Update Rate (Time, Distance)................................. 170
Delete Trail ........................................................................... 171
New Trail............................................................................... 171
Trail Visible/Invisible and Other Trail Options .................. 171
Units of Measure....................................................................... 172
Section 9: Searching ............................................................173
Find Addresses.......................................................................... 173
Find Any Item Selected by Map Cursor .................................. 176
Find Interstate Highway Exits ................................................ 177
Find Map Places or Points of Interest (POI) ........................... 179
Find Streets or Intersections.................................................... 180
Find Waypoints......................................................................... 184
Section 10: Supplemental Material ................................... 187
vi
WARNING!
A CAREFUL NAVIGATOR NEVER RELIES ON ONLY ONE METHOD
TO OBTAIN POSITION INFORMATION.
CAUTION
When showing navigation data to a position (waypoint), a GPS unit will show
the shortest, most direct path to the waypoint. It provides navigation data to the
waypoint regardless of obstructions. Therefore, the prudent navigator will not
only take advantage of all available navigation tools when traveling to a
waypoint, but will also visually check to make sure a clear, safe path to the
waypoint is always available.
WARNING!
When a GPS unit is used in a vehicle, the vehicle operator is solely
responsible for operating the vehicle in a safe manner. Vehicle
operators must maintain full surveillance of all pertinent driving,
boating or flying conditions at all times. An accident or collision
resulting in damage to property, personal injury or death could occur if
the operator of a GPS-equipped vehicle fails to pay full attention to
travel conditions and vehicle operation while the vehicle is in motion.
1
Section 1:
Read Me First!
How this manual can get you out on the road, fast!
Welcome to the exciting world of digital sonar and GPS! We know
you're anxious to begin navigating and finding fish, but we have a favor
to ask. Before you grab the unit and begin installing it, please give us a
moment or two to explain how our manual can help you get the best
performance from your combination fish finder and GPS receiver.
First, we want to thank you for buying a Lowrance sonar/GPS unit.
Whether you're a first time user or a professional fisherman, you'll
discover that your unit is easy to use, yet capable of handling
demanding navigation and sonar tasks. When you team your unit with
our custom mapping software MapCreate 6, you have an incredible
combination. With a full recording capability and remarkable
resolution, you won't find another GPS/sonar unit with this much
power and this many features for this price!
Our goal for this book is to get you on the water. Like you, we'd rather
spend more time boating or fishing and less time reading the manual!
So, we designed our book so you don't have to read the whole thing from
front to back to find the information you want. At the start (or end) of
each segment, we'll tell you what content is coming up next. If it's a
concept you're already familiar with, we'll show you how and where to
skip ahead for the next important topic. We've also made it easy to look
up any tips you may need from time to time. Here's how:
The manual is organized into 10 sections. This first section is an
introduction to the unit's sonar and GPS. It tells you the basics you
need to know so you’ll easily be able to make the unit, not only tell you
where you are, but also where to find fish.
Section 2 will help you install your unit, the transducer and the GPS
antenna module. We'll also show you how to install the MultiMedia
Card (MMC) and give you some information on available accessories.
Section 3 covers Basic Sonar Operation. It will show you how easy it is
to run your sonar, right out of the box. This section features a one-page
Sonar Quick Reference. (If you've already jumped ahead and
figured out how to install the unit yourself, and you just can't
wait any longer, turn to the Quick Reference on page 51 and
head for the water with your unit!)
After you've gained some experience with your sonar, you'll want to
check out Section 4, which discusses advanced Sonar Options and
Other Features.
2
When you come to a sonar menu command on the unit's screen, you can
look it up in the manual by skimming over the table of contents, flipping
through Section 3, or scanning through the sonar options in Section 4.
If you're having difficulty with your sonar, you can find an answer to
the most common problems in Section 5, Sonar Troubleshooting.
The manual switches from sonar to navigation in Section 6, which
introduces you to Basic GPS Operations. This section features a one-
page GPS Quick Reference on page 107.
Section 6 contains short, easy-to-scan GPS lessons that follow one
another in chronological order. They're all you'll need to know to find
your way on the water quickly.
After you've learned the basics (or if you already have some GPS
experience), you may want to try out some of the unit's many advanced
navigation features. That brings us to Section 7, Advanced GPS
Operations. This section contains the rest of the unit's GPS command
functions, organized in alphabetical order.
When you come to a GPS menu command on the screen, you can look it up
in the manual by skimming over the table of contents, flipping through
Section 6, or scanning through the command portion of Section 7.
This unit is ready to use right out of the box, but you can fine tune and
customize its operation with dozens of options. Since sonar is the unit's
key feature, we put the main sonar options in Section 4. Some options,
such as screen brightness settings, affect both sonar and GPS
operations. We describe how to use those common options along with
GPS options in Section 8, System Setup and GPS Setup Options.
Section 8 is organized in alphabetical order.
In Section 9, we go into more detail on one of the unit's most remarkable
GPS capabilities — Searching. We'll introduce a search example in the
Basic GPS Operation section, but there are so many map items you can
search for, we had to give this function its own section in the manual! For
example, did you know your unit can look up business phone numbers,
like a virtual Yellow Pages? We’ll show you how in Section 9.
Finally, in Section 10, we offer Supplemental Material, including a list
of the GPS datums, warranties and customer service information.
It's important to us (and our power users), but, if you don't care how
many watts of power the unit has, or how many waypoints it can store,
skip ahead to important information on how sonar works, on page 6.
(Background on GPS begins on page 7).
4
How Your GPS Works
You'll navigate faster and easier if you understand how this unit scans
the sky to tell you where you are on the earth — and, where you're
going. (But if you already have a working understanding of GPS
receivers and the GPS navigation system, skip on ahead to Section 2,
Installation & Accessories on page 9. If you're new to GPS, read on, and
you can later impress your friends with your new-found knowledge.)
First, think of your unit as a small but powerful computer. (But don't
worry — we made the series easy to use, so you don't need to be a
computer expert to find your way!) The unit includes a keypad and a
screen with menus so you can tell it what to do. The screen also lets the
unit show your location on a moving map, as well as point the way to
your destination.
This gimbal-mounted unit uses an external antenna/receiver module,
which makes the whole system work something like your car radio. But
instead of your favorite dance tunes, this receiver tunes in to a couple of
dozen GPS satellites circling the earth. (It will also listen in to the
WAAS satellites in orbit, but more about that in the upcoming segment
introducing you to GPS and WAAS.)
Your unit listens to signals from as many satellites as it can "see" above
the horizon, eliminates the weakest signals, then computes its location
in relation to those satellites. Once it figures its latitude and longitude,
the unit plots that position on the moving map shown on the screen.
The whole process takes place several times a second!
The performance doesn't stop there. Stored in the permanent memory
of every unit is a basic background map of the entire world. We lock it
in here at the factory — you can't change or erase this map.
The background map is suitable for many navigation chores, but for
maximum accuracy and much more detail, you need our optional map-
making software, MapCreate 6. Some unit features — such as
searching for businesses and addresses — won't work without a custom
MapCreate map. There is so much detail in our background map (and
even more in MapCreate) that we'll describe their contents and
differences in Section 6, Basic GPS Operations, on page 95.
NOTE
The LCX-26CHD and LCX-111CHD have Nautic Path charts,
HotSpots Elite charts and all high detail custom maps preloaded
onto a 20 Gigabyte hard drive. Therefore, if you own either the
LCX-26CHD or the LCX-111CHD, you do not need to load any of
those charts/maps into the unit. The unit can also use Navionics
charts, but they must be loaded into the unit via a Navionics card.
5
MMC and SD cards still will be necessary to log sonar chart data
and to store GPS data files.
Another portion of the unit's onboard memory is devoted to recording
GPS navigation information, which includes waypoints, event marker
icons, trails and routes. This lets you look back the way you came. Think
of this data storage like the hard drive memory in a computer or a tape
in a cassette tape recorder. You can save several different GPS data files,
erase 'em and record new ones, over and over again. Like any computer
file, these GPS Data Files (file format *.usr) can be shared between
other Lowrance GPS or sonar/GPS units and even personal computer.
Your unit has one more thing in common with a personal computer.
Just as computers have a floppy disk drive for storing and exchanging
files, this unit has a slot for an MMC (MultiMedia Card) or SDC
(Secure Digital card) flash memory card. These solid-state memory
devices are about the size of a postage stamp, but can hold data ranging
from 8 MB to 1 GB in size. (Compare that to a floppy disk's 1.44 MB
capacity!) The unit uses all that MMC space for two key GPS purposes.
(The MMC is also used to record sonar logs. See page 6.)
First, you can backup your onboard GPS Data Files by copying them to
the MMC. Since the MMC is removable (like a floppy disk or a cassette
tape), you can store these GPS Data Files on a personal computer
equipped with an MMC card reader. (Or store them on a pocketful of
MMCs, if you don't have a computer.) Our MapCreate mapping
software can save, edit or create its own GPS Data Files, which can be
copied to the MMC and then loaded from the MMC into the unit's
memory.
The other key GPS use for MMCs is storage of special high-detail,
custom maps, which you can produce on your computer with our
MapCreate software. These MapCreate custom maps contain much
greater detail than the basic background map. These Custom Map
Files (file format *.lcm) can also be shared between other Lowrance
GPS or sonar/GPS units and personal computers. (For example, the
exact same MMC, custom map files and GPS data files can be used
interchangeably between your gimbal-mounted unit and the hand-held
iFINDER GPS receiver.)
The unit automatically reads Custom Map Files directly from the MMC
or SDC. To use a custom map, all you need to do is slide an MMC
containing a map into the unit.
Introduction to GPS and WAAS
Well, now you know the basics of how the unit does its work. You might
be ready to jump ahead to Section 2, Installation & Accessories, on page
6
9, so you can mount your unit and plug in the power. Or you might
want to see how our text formatting makes the manual tutorials easy to
skim. If that's the case, move on to "How to Use This Manual" on page
8. But, if you want to understand the current state of satellite
navigation, look over this segment describing how GPS and its new
companion WAAS work together to get you where you're going.
The Global Positioning System (GPS) was launched July 17, 1995 by
the United States Department of Defense. It was designed as a 24-
hour-a-day, 365-days-a-year, all weather global navigation system for
the armed forces of the U.S. and its allies. Civilian use was also
available, but it was less accurate because the military scrambled the
signal somewhat, using a process called Selective Availability (SA.)
GPS proved so useful for civilian navigation that the federal
government discontinued SA on May 2, 2000, after the military
developed other methods to deny GPS service to enemy forces. Reliable
accuracy for civilian users jumped from 100 meters (330 feet) under SA
to the present level of 10 to 20 meters (about 30 to 60 feet.)
Twenty-four satellites orbit 10,900 nautical miles above the Earth,
passing overhead twice daily. A series of ground stations (with precisely
surveyed locations) controls the satellites and monitors their exact
locations in the sky. Each satellite broadcasts a low-power signal that
identifies the satellite and its position above the earth. Three of these
satellites are spares, unused until needed. The rest virtually guarantee
at least four satellites are in view nearly anywhere on Earth at all times.
A minimum of three satellites are required to determine a 2D fix.
The system requires signal reception from 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 signals, GPS works at
7
very high frequencies. These signals can be easily blocked by trees,
buildings, an automobile roof, even your body.
Like most GPS receivers, this unit doesn’t 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 the
unit to determine direction of travel, you must be moving and the
faster, the better. This is not to say that it won’t work at walking or
trolling speeds — it will. There will simply be more "wandering" of the
data shown on the display.
GPS is plenty accurate for route navigation, but the U.S. Federal
Aviation Administration has special needs for aircraft traffic control
that go beyond basic GPS. The FAA has a plan under way to boost GPS
performance even further with its Wide Area Augmentation System, or
WAAS. This GPS add-on will include a time control element that will
help airliners fly closer together while avoiding collisions. In addition to
carefully spacing airplanes along travel corridors, WAAS will
eventually make instrument landings and takeoffs more accurate as it
replaces existing aviation navigation systems.
Non-aviators can use WAAS signals to make their GPS navigation even
more accurate. Your unit receives both GPS and WAAS signals. WAAS,
however, has some limits you should know about.
First, the U.S. government has not completed construction of the WAAS
system, so it is not yet fully operational. The ground stations are in place,
but only a few of the needed WAAS satellites have been launched.
WAAS can boost the accuracy of land GPS navigation, but the system is
designed for aircraft. The satellites are in a fixed orbit around the
Equator, so they appear very low in the sky to someone on the ground
in North America. Aircraft and vessels on open water can get
consistently good WAAS reception, but terrain, foliage or even large
man-made structures frequently block the WAAS signal from ground
receivers.
You'll find that using your GPS receiver is both easy and amazingly
accurate. It’s easily the most accurate method of electronic navigation
available to the general public today. But remember this receiver is
only a tool. Always have another method of navigation available, such
as a map or chart and a compass.
Also remember 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 can’t know what’s between you
and your destination. It’s up to you to safely navigate around obstacles,
no matter how you’re using this product.
8
How to use this manual: typographical conventions
Many instructions are listed as numbered steps. The keypad and arrow
"keystrokes" appear as boldface type, so you can easily skim the
instructions and pick out what menu command to use.
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 also
help you move around the menus so you can execute different
commands. They are represented by symbols like these, which denote
the down arrow, up arrow, left arrow and right arrow: ↓ ↑ ← →.
Keyboard
The other keys perform a variety of functions. When the text refers to a
key to press, the key is shown in bold. 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 this 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. Now, begin moving and
follow your unit's directions.
In clearer terms, step 1 (above) means: "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: "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."
11
NOTE
Some aluminum boats with strakes or ribs on the outside of the
hull create large amounts of turbulence at high speed. These boats
typically have large outboard motors capable of propelling the boat
at speeds faster than 35 mph. Typically, a good transom location on
aluminum boats is between the ribs closest to the engine.
3. The transducer should be installed with its face pointing straight
down, if possible. For shoot-thru applications: Many popular fishing
boat hulls have a flat keel pad that offers a good mounting surface. On
vee hulls, try to place the transducer where the deadrise is 10° or less.
Left, vee pad hull; right, vee hull. A pod style transducer is shown here,
but the principle is the same for Skimmers inside a hull.
4. If the transducer is mounted on the transom, make sure it doesn't
interfere with the trailer or hauling of the boat. Also, don't mount it
closer than approximately one foot from the engine's lower unit. This
will prevent cavitation (bubble) interference with propeller operation.
5. If possible, route the transducer cable away from other wiring on the
boat. Electrical noise from engine wiring, bilge pumps and aerators
can be displayed on the sonar's screen. Use caution when routing the
transducer cable around these wires.
Good and poor transducer locations.
CAUTION: Clamp the
transducer cable to transom
near the transducer. This will
help prevent the transducer
from entering the boat if it is
knocked off at high speed.
Good location
Good location
Poor angle
Poor location
Good
location
Deadrise less than 10
°
Pad Strakes
12
How low should you go?
For most situations, you should install your Skimmer transducer so
that its centerline is level with the bottom of the boat hull. This will
usually give you the best combination of smooth water flow and
protection from bangs and bumps.
Align transducer centerline with hull bottom.
However, there are times when you may need to adjust the transducer
slightly higher or lower. (The slots in the mounting brackets allow you
to loosen the screws and slide the transducer up or down.) If you
frequently lose bottom signal lock while running at high speed, the
transducer may be coming out of the water as you cross waves or
wakes. Move the transducer a little lower to help prevent this.
If you cruise or fish around lots of structure and cover, your transducer
may be frequently kicking up from object strikes. If you wish, you may
move the transducer a little higher for more protection.
There are two extremes you should avoid. Never let the edge of the
mounting bracket extend below the bottom of the hull. Never let the
bottom – the face – of the transducer rise above the bottom of the hull.
Shoot-thru-hull vs. Transom Mounting
In a shoot-thru-hull installation, the transducer is bonded to the inside
of the hull with epoxy. The sonar "ping" signal actually passes through
the hull and into the water. This differs from a bolt-thru-hull
installation (often called simply "thru-hull"). In that case, a hole is cut in
the hull and a specially designed transducer is mounted through the
hull with a threaded shaft and nut. This puts the transducer in direct
contact with the water.
Typically, shoot-thru-hull installations give excellent high speed
operation and good to excellent depth capability. There is no possibility
of transducer damage from floating objects, as there is with a transom-
mounted transducer. A transducer mounted inside the hull can't be
knocked off when docking or loading on a trailer.
Transom
Hull bottom
Transducer
centerline
13
The shoot-thru-hull installation, however, does have its drawbacks.
First, some loss of sensitivity does occur, even on the best hulls. This
varies from hull to hull, even from different installations on the same
hull. This is caused by differences in hull lay-up and construction.
Second, the transducer angle cannot be adjusted for the best fish arches
on your sonar display. (This is not an issue for flasher-style sonars.)
Lack of angle adjustment can be particularly troublesome on hulls that
sit with the bow high when at rest or at slow trolling speeds.
Third, a transducer CAN NOT shoot through wood and metal hulls.
Those hulls require either a transom mount or a thru-hull installation.
Fourth, if your Skimmer transducer has a built in temp sensor, it will
only show the temperature of the bilge, not the water surface temp.
Follow the testing procedures listed in the shoot-thru-hull installation
section at the end of this lesson to determine if you can satisfactorily
shoot through the hull.
Transom Transducer Assembly And Mounting
The best way to install these transducers is to loosely assemble all of the
parts first, place the transducer's bracket against the transom and see if
you can move the transducer so that it's parallel with the ground.
The following instructions sometimes vary depending on the mounting
bracket that came with your transducer. Single-frequency Skimmers
come with a one-piece stainless steel bracket, while dual-frequency
Skimmers come with a two-piece plastic mounting bracket. Use the set of
instructions that fits your model.
1. Assembling the bracket.
A. One-piece bracket: Press the two small plastic ratchets into the
sides of the metal bracket as shown in the following illustration. Notice
there are letters molded into each ratchet. Place each ratchet into the
bracket with the letter "A" aligned with the dot stamped into the metal
bracket. This position sets the transducer's coarse angle adjustment for a
14° transom. Most outboard and stern-drive transoms have a 14° angle.
14
Align plastic ratchets in bracket.
B. Two-piece bracket: Locate the four plastic ratchets in the
transducer's hardware package. Press two ratchets into the sides of the
plastic bracket and two on either side of the transducer as shown in the
following illustrations. Notice there are letters molded into each ratchet.
Place the ratchets into the bracket with the letter "A" aligned with the
alignment mark molded into the bracket. Place the ratchets onto the
transducer with the letter "A" aligned with the 12 o'clock position on
the transducer stem. These positions set the transducer's coarse angle
adjustment for a 14° transom. Most outboard and stern-drive transoms
have a 14° angle.
Insert and align ratchets.
Dot
Alignment letters
Alignment
positions
Transducer bracket
Transducer
15
Add ratchets to bracket and transducer.
2. Aligning the transducer on the transom.
A. One-piece bracket: Slide the transducer between the two
ratchets. Temporarily slide the bolt though the transducer assembly
and hold it against the transom. Looking at the transducer from the
side, check to see if it will adjust so that its face is parallel to the
ground. If it does, then the "A" position is correct for your hull.
If the transducer's face isn't parallel with the ground, remove the
transducer and ratchets from the bracket. Place the ratchets into the
holes in the bracket with the letter "B" aligned with the dot stamped
in the bracket.
Reassemble the transducer and bracket and place them against the
transom. Again, check to see if you can move the transducer so it's
parallel with the ground. If you can, then go to step 3A. If it doesn't,
repeat step 2A, but use a different alignment letter until you can
place the transducer on the transom correctly.
Insert bolt and check transducer position on transom.
Ratchets
Trans
ducer
bracket
Ratchet Ratchet
Transducer
16
B. Two-piece bracket: Assemble the transducer and bracket as shown
in the following figure. Temporarily slide the bolt though the transducer
assembly but don't tighten the nut at this time. Hold the assembled
transducer and bracket against the transom. Looking at the transducer
from the side, check to see if it will adjust so that its face is parallel to
the ground. If it does, then the "A" positions are correct for your hull.
If the transducer's face isn't parallel with the ground, remove and
disassemble the transducer and ratchets. Place the ratchets into the
bracket holes with the letter "B" aligned with the bracket alignment
mark. Place them on the transducer aligned with the 12 o'clock
position on the transducer stem.
Reassemble the transducer and bracket and place them against the
transom. Again, check to see if you can move the transducer so it's
parallel with the ground. If you can, then go to step 3B. If it doesn't,
repeat step 2B, but use a different alignment letter until you can
place the transducer on the transom correctly.
Assemble transducer and bracket.
3. Assembling the transducer.
A. One-piece bracket: Once you determine the correct position for
the ratchets, assemble the transducer as shown in the following
figure. Don't tighten the lock nut at this time.
Assemble transducer and bracket.
Nut Metal
washer
Metal washer
Bolt
Rubber
washers
Flat washer
Lock washer
Flat washer
Nut
Bolt
17
B. Two-piece bracket: Once you determine the correct position for
the ratchets, assemble the transducer as shown in the figure in step
2B. Don't tighten the lock nut at this time.
4. Drilling mounting holes.
Hold the transducer and bracket assembly against the transom. The
transducer should be roughly parallel to the ground. The
transducer's centerline should be in line with the bottom of the hull.
Don't let the bracket extend below the hull!
Mark the center of each slot for the mounting screw pilot holes. You
will drill one hole in the center of each slot.
Drill the holes. For the one-piece bracket, use the #29 bit (for the #10
screws). For the two-piece bracket, use the #20 bit (for the #12
screws).
Position transducer mount on transom and mark mounting holes.
Side view shown (left) and seen from above (right).
5. Attaching transducer to transom.
A. One-piece bracket: Remove the transducer from the bracket and
re-assemble it with the cable passing through the bracket over the
bolt as shown in the following figures.
For single-frequency Skimmer, route cable over bolt and through
bracket. Side view shown (left) and seen from above (right).
Transom
Transom
18
Both bracket types: Attach the transducer to the transom. Slide the
transducer up or down until it's aligned properly with the bottom of
the hull as shown in the preceding and following figures. Tighten the
bracket's mounting screws, sealing them with the caulking compound.
Adjust the transducer so that it's parallel to the ground and tighten
the nut until it touches the outer washer, then add 1/4 turn. Don't
over tighten the lock nut! If you do, the transducer won't "kick-up" if
it strikes an object in the water.
Align transducer centerline with hull bottom and attach transducer to
transom. Rear view of dual-frequency Skimmer shown.
6. Route the transducer cable through or over the transom to the sonar
unit. Make sure to leave some slack in the cable at the transducer. If
possible, route the transducer cable away from other wiring on the
boat. Electrical noise from the engine's wiring, bilge pumps, VHF radio
wires and cables, and aerators can be picked up by the sonar. Use
caution when routing the transducer cable around these wires.
WARNING:
Clamp the transducer cable to the transom close to the
transducer. This can prevent the transducer from
entering the boat if it is knocked off at high speed.
If you need to drill a hole in the transom to pass the connector through,
the required hole size be 1".
CAUTION:
If you drill a hole in the transom for the cable, make sure it is
located above the waterline. After installation, be sure to seal the
hole with the same marine grade above- or below-waterline
sealant used for the mounting screws.
Flat-bottom hull
Deep-"vee" hull
Bottom
of
hull
20
TRANSDUCER ORIENTATION AND FISH ARCHES
If you do not get good fish arches on your display, it could be because
the transducer is not parallel with the ground when the boat is at rest
in the water or at slow trolling speeds.
Transducer angles and their effects on fish arches.
If the arch slopes up – but not back down – then the front of the
transducer is too high and needs to be lowered. If only the back half of
the arch is printed, then the nose of the transducer is angled too far
down and needs to be raised.
NOTE:
Periodically wash the transducer's face with soap and water to
remove any oil film. Oil and dirt on the face will reduce the
sensitivity or may even prevent operation.
SHOOT-THRU-HULL PREPARATION
Hulls With Floatation Materials
The transducer installation inside a fiberglass hull must be in an area
that does not have air bubbles in the resin or separated fiberglass
Transducer aimed
too far back Transducer aimed
too far forward
Proper transducer angle
Partial fish arches
Full fish arch
22
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.
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.
Transducer location
(trolling speed)
Transducer location
(high speed)
Second bottom
True bottom
Manual range setting
23
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.
4. Most people can get good results by following steps 1 through 3, so this
step is optional. If you want to make an extra effort to be absolutely sure
that your selected location will work under all conditions, make a test
run with the boat on plane and observe the bottom signal. You'll need to
figure some way to prop the transducer into position while you make
your test run. (A brick or two might be sufficient to hold it in place.)
5. When you're satisfied with a location, mark it and proceed with
the installation.
Shoot-thru-hull Installation
If you are installing the transducer on a hull with floatation material
sandwiched within the hull, refer to the text "Hulls With Flotation
Materials" beginning on page 20.
1. Make sure the area is clean, dry and free of oil or grease, then sand
both the inside surface of the hull and the face of the transducer with
100 grit sandpaper. The sanded hull area should be about 1-1/2 times
the diameter of the transducer. The surface of the hull must be flat
so the entire transducer face is in contact with the hull prior to
bonding. After sanding, clean the hull and transducer with rubbing
alcohol to remove any sanding debris.
26
Stern view showing good location for mounting sensor on transom.
Speed sensor mounting configuration:
side view (left) and rear view (right.)
If the base of the transom has a radius, fill the gap between the
transom and the sensor with the sealant. This will help ensure a
smooth water flow.
Route the sensor's cable through or over the transom to the sonar unit.
If you need to drill a hole in the transom to pass the connector through,
the required hole size is 7/8".
CAUTION:
If you drill a hole in the transom for the cable, make sure it is
located above the waterline. After installation, be sure to seal the
hole with the same marine grade above- or below-waterline
sealant used for the screws.
The sensor is now ready for use. Connect the sensor to the sonar socket
on the back of your unit and connect the transducer to the speed
sensor's socket. If you have any questions concerning the installation of
the sensor, please contact your local boat dealer.
GPS Antenna/Receiver Module
The LCX-25C, LCX-26CHD, LCX-110C and LCX-111XCHD packages
include the LGC-2000 GPS module. This device contains the unit's
Good location
Transom
Bottom of hull
Bottom of hull
27
external antenna and receiver for GPS and WAAS signals. The
antenna/receiver module comes with a 25-foot Y-adapter extension
cable. This module can be mounted on a flat surface or pole, or an
optional magnet is available for temporary mounting on any ferrous
surface.
LGC-2000 Module, bottom view (left) and top view (right).
You need to select an antenna installation location that has a clear,
unobstructed view of the sky. After the module is installed, connect it to
the unit. The LGC-2000 can communicate with your GPS unit either
directly (using the supplied extension cable) or through a NMEA 2000
network.
NOTE
See the module’s instruction sheet, publication part number 988-
0147-981, for complete installation instructions.
In an automobile, you may achieve good results by simply placing the
external antenna on the top of the dash, at the base of the windshield. A
piece of the rubber non-skid shelf liner material available in recreational
vehicle supply stores will help hold the antenna in place. This may not
work well if you have a cab-over design pickup truck camper or motor
home. If dashboard reception is poor, simply relocate the antenna module
elsewhere on the vehicle for a clearer view of the sky.
Connecting Directly to the Unit
After the module is installed, attach it to the end of the Y-adapter
extension cable as shown in the following diagram. To connect it to the
unit, insert the extension cable's splitter plug into the Network socket
on the back of the unit and your system is ready to use.
29
LGC-2000 remote connection to NMEA 2000 buss.
NOTE:
An existing operational NMEA 2000 buss will already have
terminators in place and will already be powered. If you're connecting
to such a network, you won't need the terminators or extension cable
provided. Do not add terminators or power to a functional NMEA
2000 buss!
When the LGC-2000 is connected to the unit (directly or indirectly), it
will begin providing GPS signal information.
Power Connections
Your unit comes with a power/data cable that splits into three ends,
each with several exposed wires (shown in the following figure). The
end with 4 wires (blue, yellow, orange and shield) is a Data cable that
connects to a NMEA 0183 interface. The end with three wires (red,
black and shield) is a power cable that connects to a NMEA 2000 buss.
The thicker three-wire cable (red, black and white) is the Power Supply
for your unit (and optional external speaker connection).
The Power/Data cable for this unit.
Depending on your configuration, you may not use all of these wires.
The following segments include instructions for installing all the wires
that you will use with this unit.
Caution
All of the wires in the power/data cable have bare ends for
easier installation. The bare ends on any unused wires could
cause an electrical short if left exposed. To prevent this, you
should cover the individual wire ends – either by capping them
with wire nuts or wrapping them with electrical tape. (You
should cut off the bare wire before taping off the ends.)
To NMEA 2000
network port LGC-2000
To unit
Data Cable wires: blue,
yellow, orange and shield
Power Supply wires:
red, black and white
NMEA 2000 Power wires:
red, black and shield
30
Powering a NMEA 2000 Buss
(NMEA 2000 Power cable)
A NMEA 2000 buss must be connected to a power source to operate. If
you have a pre-existing NMEA 2000 installation, it may already be
connected to another power source. If your NMEA 2000 buss is already
powered, you can ignore the NMEA 2000 Power cable. Never attach
two power sources to a single NMEA 2000 buss.
If you do need to power your NMEA 2000 buss, attach the NMEA 2000
Power cable to your boat's battery just as indicated in the following
segment for connecting your unit's Power Supply cable. The NMEA
2000 Power cable's red wire should be attached (with provided 3-amp
fuse) to the boat battery's positive terminal, and the NMEA 2000 Power
cable's black and shield wires should both be attached to the battery's
negative terminal.
NOTE:
If the NMEA 2000 buss draws power directly from the boat's battery,
the LGC-2000 will remain on (drawing power) all the time. The LGC-
2000's current draw is very small and shouldn't decrease the boat's
storage battery life, but if this small draw is a concern, you can
install a switch between the NMEA 2000 buss and the battery.
Powering Your Unit
(Power Supply cable – red and black wires)
The unit works from a 12-volt battery system. For the best results,
attach the power cable directly to the battery. You can attach the power
cable to an accessory or power buss, however you may have problems
with electrical interference. Therefore, it's safer to go ahead and attach
the power cable directly to the battery.
CAUTION:
When using the unit in a saltwater environment, we strongly
recommend that you shut off the power supply to the power cable
when the unit is not in use. When the unit is turned off but still
connected to a power supply, electrolysis can occur in the power
cable plug. This may result in corrosion of the plug body along with
the electrical contacts in the cable and the unit's power socket.
In saltwater environments we recommend you connect the power
cable to the auxiliary power switch included in most boat designs.
If that results in electrical interference, or if such a switch is not
available, we recommend connecting direct to the battery and
installing an inline switch. This will let you shut off power to the
31
power cable when the unit is not in use. When you are not using
the unit, you should always shut off power to the power cable,
especially when the power cable is disconnected from the unit.
If possible, keep the power cable away from other boat wiring, especially
the engine's wires. This will provide the best isolation from electrical
noise. If the cable is not long enough, splice #18 gauge wire onto it. The
power cable has two wires, red and black. Red is the positive lead, black
is negative or ground. (There is also a white wire to power an optional
external speaker for some units.) Make sure to attach the in-line fuse
holder to the red lead as close to the power source as possible.
For example, if you have to extend the power cable to the battery or
power buss, attach one end of the fuse holder directly to the battery or
power buss. This will protect both the unit and the power cable in the
event of a short. It uses a 3-amp fuse.
Power connections for LCX-series sonar/GPS units.
NOTE:
If you're powering a NMEA 2000 buss, you will attach both the
NMEA 2000 Power cable and the unit's Power Supply cable to the
boat's battery. To attach the NMEA 2000 Power cable, connect the
red wire to battery's + and black and shield wires to battery's –.
WARNING:
This product must be independently fused with the
enclosed 3-amp fuse (or equivalent), even if you connect
to a fused accessory or power buss.
If a malfunction happens inside the unit, extensive
damage can occur if the enclosed fuse is not used. As with
12 volt
battery
Black wire Red wire with
3 amp fuse
To unit
Data Cable
Optional power off
switch for salt-
water installations
NMEA 2000 Power Cable
To power a
NMEA 2000
buss, also
connect
NMEA 2000
Power cable
to the boat's
battery.
External speaker wire
32
all electrical devices, this unit could be damaged to a
point that it is unrepairable and could even cause harm
to the user when not properly fused.
CAUTION:
Do not use this product without a 3-amp fuse wired into the power
cable! Failure to use a 3-amp fuse will void your warranty.
This unit has reverse polarity protection. No damage will occur if the
power wires are reversed. However, the unit will not work until the
wires are attached correctly.
NMEA 2000 Cable Connections
NMEA 2000 is a new buss network specifically designed for boats. This is
a very young industry standard and, at the time of printing, few boats
being built now have a NMEA 2000 buss installed. Over the next few
years, however, NMEA 2000 will become much more common. To help
you get the most out of this technology, your Lowrance unit is designed
to work with a NMEA 2000 network as soon as it becomes available.
Connecting to a NMEA 2000 Network
Your unit can be connected to a NMEA 2000 buss, receiving sensor
information from any Lowrance units attached to the buss. Contact LEI
Extras (look inside back cover for accessory ordering information) for a
NMEA 2000 buss adapter cable if you would like to do this. You can
connect both the unit and antenna module through the antenna's
extension cable (as described earlier), or you can connect the unit directly
to a network port. To do so, attach the adapter cable's manual locking
collar connector to the Network port on the back of the sonar unit and
attach the other end to an available port on the NMEA 2000 buss, as
shown in the following image.
Lowrance unit direct connection to NMEA 2000 buss.
As soon as the unit is connected to the network, it will begin receiving
shared information. Please note the buss must be powered to operate.
(See instructions in this section for more on powering NMEA 2000
buss.)
NMEA 0183 Wiring
(Data cable)
To exchange NMEA 0183 data, this unit has one NMEA 0183 version
2.0 communication port. Com port one (Com-1) can be used to receive
NMEA format GPS data. The com port can also transmit NMEA format
GPS data to another device.
To NMEA 2000
network port To sonar
unit's Network
socket
33
The four wires for the com port are combined with the Power Supply
cable and NMEA 2000 Power cable to form the power/data cable (shown
earlier). Com-1 uses the yellow wire to transmit, the orange wire to
receive and the shield wire for signal ground. Your unit does not use
the blue wire.
Com-1 wiring to receive NMEA position information
from some other GPS receiver.
Com-1 wiring to transmit NMEA position information
to another NMEA-compatible device.
Ground To Other
Device
Com-1
To unit
Yellow (Transmit)
NMEA Receive
Shield (Ground)
Orange (Receive) NMEA Transmit
Shield (Ground) Ground
Com-1
To unit
To Other
GPS Receiver
34
Cable connections.
Mounting the Unit: Bracket or In-Dash
You can install the unit on top of a dash with the gimbal bracket. It can
also be installed in the dash or mounted on a portable power supply.
Sonar unit,
rear view
GPS
antenna
module
Power/Data
socket
LGC 2000 25'
extension cable
NMEA 2000
Power Cable
Sonar socket
Transducer
Power
Supply
Cable
Network
socket
SP-BL optional
speed sensor
60-ohm
terminator
NMEA 0183
Data Cable
35
If you use the supplied bracket, you may be interested in the optional
R-A-M bracket mounting system. This converts the unit's gimbal
bracket to a swivel mount, which can be used on the dash or overhead
mounting positions.
Optional R-A-M mounting system.
Bracket Installation
Mount the unit in any convenient location, provided there is clearance
behind the unit when it's tilted for the best viewing angle. You should
also make sure there is enough room behind the unit to attach the
power, transducer and GPS antenna/receiver module cables. (A
drawing on the next page shows the dimensions of a gimbal-mounted
unit.)
Holes in the bracket's base allow wood screw or through-bolt mounting.
You may need to place a piece of plywood on the back side of thin
fiberglass panels to reinforce the panel and secure the mounting
hardware.
37
Front view (left) and side view (right) showing dimensions of the
sonar/GPS unit when mounted on gimbal bracket.
To pass all connectors through the 1" hole, first pass the transducer
connector up through the hole from under the dash, followed by the
antenna connector and any accessory cables. Next, pass the power
cable's bare-wire end down though the hole from the top.
If you wish, you can fill in the hole around the cables with a good
marine caulking compound. No matter what type of installation you
prefer, be sure to leave enough slack in the cables to allow tilting or
swiveling the unit.
Attach the unit to the gimbal bracket using the supplied gimbal knobs
and washers. Attach the cables and the unit is ready to use.
In-Dash Installation
You can mount the unit in the dash with an optional FM-3 In-Dash
Adapter Kit. The kit includes mounting hardware and a template for
cutting the hole.
Millimeter
[Inch]
244
[9.58] 94
[3.61]
56.9
[2.24]
185
[7.34]
37.1
[1.37]
40
Switch Boxes
Two switch boxes are available for this unit. One transducer switch box
switches two transducers to one sonar unit. The other transducer switch
box switches two sonar units to one transducer.
If these accessories are not available from your dealer, see the
accessory ordering information on the inside back cover of this manual.
Visit our web site for a complete listing of all the available accessories
for your unit.
External Speaker
Your unit can play sounds to an external speaker. This feature can be
convenient any time you are away from the unit — especially in a
larger boat — but still want to hear its alarms. You might install a
small speaker at the stern of your boat so you won't miss a dangerous
Shallow Alarm while fishing, or put one in your galley so you can hear
the GPS Arrival Alarm.
You can purchase an external speaker and the wire to connect it at
your nearest audio or marine electronics store. You will need to buy
marine-grade 18 gauge stranded wire. Buy enough of one color (we
suggest white) to run from the unit's Power/Data cable to the speaker.
Buy enough of another color (we suggest black) to run from the speaker
to the battery or fuse box.
The unit is designed to work with most speakers, but make sure you
buy one that meets these minimum requirements:
• Minimum 8-ohm resistance
• Minimum 5-watt power
In your vessel or vehicle, mount the speaker wherever you want to hear
your unit's sounds. (Follow the speaker's installation instructions).
Next, connect the speaker to your unit as shown in the following figure.
41
Connections for optional external speaker.
The speaker should have either two terminals or two exposed wires: a
positive (+) and a negative (–) ground. Your unit's external audio
output is the white wire in the unit power supply cable. Connect this
wire to the speaker's positive (+) wire or terminal with white 18 gauge
wire. Connect the speaker's negative (–) ground wire or terminal to the
negative (–) terminal on your battery or fuse box with black 18 gauge
wire. The unit should automatically begin to play any active sounds
through the attached speaker.
Face Cover
Your unit comes with a white protective cover that snaps on and off the
front of the unit. This cover is intended for use when your unit and the
vehicle it's mounted in are idle.
WARNING:
When the unit is mounted in an unprotected area, such
as an open boat cockpit, the protective face cover must
be removed when the vehicle is moving at high speed.
This includes towing a boat on a trailer at highway
speeds. Otherwise, wind blast can pop off the cover.
Now that you have your unit installed, move on to Sec. 3, Basic Sonar
Operations. In Sec. 3 we'll present a series of step-by-step tutorials to
teach you the basics of your sonar operation.
NOTE:
When you first turn the unit on, the Map Page appears. If you'd
rather start learning about GPS operation first, turn to Sec. 6,
Basic GPS Operations. (Remember, you don't need to read this
manual from cover-to-cover to get going. We designed it so you can
skip around to the section you want to read.)
Unit power
supply cable
NMEA 0183
Data cable
(four wires)
NMEA 2000
Power cable
Black wire
Red wire with
3 amp fuse
Speaker
Optional power off
switch for salt-
water install
a
tions
Black speaker wire
12 volt
battery
White speaker wire
To unit
42
Notes
43
Section 3:
Basic Sonar Operation
This section addresses the unit's most basic sonar operations. The
instructions presented in Sec. 3 follow a chronological order. Sec. 4,
Sonar Options & Other Features, will discuss other more advanced
functions and utilities. Material in Sec. 4 is arranged in alphabetical
order.
Before you turn on the unit, it's a good idea to learn about the different
keys, the Main Menu, the four Page screens and how they all work
together. BUT, if you just can't wait to get on the water, turn to the
one-page Quick Reference on page 51.
Keyboard
LCX-26CHD sonar/GPS unit, front view, showing sonar screen,
keyboard and access door for the MMC compartment.
1. PWR/LIGHT (Power & Light) – The PWR key turns the unit on and
off and activates the backlight.
5
4
2
8
7
9
6
3
1
MMC drawer
44
2. PAGES – Pressing this and the ← → arrow keys switches the unit
between the four different page screens. (Satellite Status Page,
Navigation Page, Map Page and Sonar Page.) Each page represents one
of the unit's major operation modes.
3. MENU – Press this key to show the menus and submenus, which
allow you to select a command or adjust a feature. This also accesses
search functions for streets, intersections, addresses and highway exits.
4. ARROW KEYS – These keys are used to navigate through the
menus, make menu selections, enter data and move the map and sonar
chart cursors.
5. ENT/ICONS (Enter & Icons) – This key allows you to save data,
accept values or execute menu commands. It is also used to create
event marker icons.
6. EXIT – The Exit key lets you return to the previous screen, clear
data and close menus.
7. WPT – (Waypoint) The Waypoint key is used to save and recall
waypoints, search for waypoints and access the waypoint list. It also
launches the Point-of-Interest (POI) search menus and is involved in
some navigation functions.
8. ZOUT – (Zoom Out) – This key lets you zoom the screen out. On the
Sonar Page, this key returns you to a full sonar chart display, showing
the entire water column from surface to bottom. On the Map Page, this
lets you see a larger geographic area on the map. Less detail is seen as
you zoom out.
9. ZIN – (Zoom In) – This key lets you zoom the screen in. On the Sonar
Page, this key enlarges fish signals and bottom detail. On the Map
Page, zooming in lets you see greater detail in a smaller geographic
area on the map.
Power/lights on and off
To turn on the unit, press PWR. As the unit powers up, the Map Page is
displayed first. To switch to the Sonar Page, press PAGES|→|EXIT.
To turn on the backlight, press PWR again. The unit has three backlight
levels to select from. Repeatedly pressing PWR will cycle through the
backlight settings and turn off the backlight.
Turn off the unit by pressing and holding the PWR key for 3 seconds.
45
Main Menu
The unit has a Main Menu, which contains some function commands
and some setup option commands. The instructions in this section will
deal only with sonar functions, the basic commands that make the unit
show sonar signals on your screen. This unit will work fine right out of
the box with the factory default settings. But, if you want to learn
about the various sonar options, see Sec. 4, Sonar Options & Other
Features. (For general system setup and GPS options, see Sec. 8,
System Setup and GPS Setup Options.)
You can access the Main Menu from any of the four Page screens by
pressing MENU|MENU. To clear the menu screen and return to the page
display, press EXIT. (Remember, our text style for "MENU|MENU" means
"press the Menu key twice." See a full explanation of our instruction
text formatting on page 8, Instructions = Menu Sequences.)
Main Menu.
The Main Menu commands and their functions are:
Screen command: changes the contrast or brightness of the display.
Sounds command: enables or disables the sounds for key strokes and
alarms and sets the alarm style.
Alarms command: turns GPS alarms on or off and changes alarm
thresholds.
Route Planning command: used to plan, view or navigate a route.
My Trails command: shows, creates and deletes plot trails. Also used
to navigate or backtrack a trail.
Cancel Navigation command: turns off the various navigation
commands. Used to stop navigating after you have reached your
46
destination waypoint, Point of Interest or map cursor location; or after
you reach the end of a route or trail.
Sonar Setup command: sets various sonar options.
GPS Setup command: sets various GPS receiver options.
System Setup command: sets general configuration options.
Sun/Moon Calculations command: finds the rising and setting time
of the sun and the moon.
Trip Calculator command: shows trip status and statistics.
Timers command: controls the up timer, down timer and alarm clock.
Browse MMC Files command: this allows you to view the installed
MMC card and the files it contains.
Pages
The unit has four Page displays that represent the four major operating
modes. They are the Satellite Status Page, the Navigation Page, the Map
Page and Sonar Page. They are accessed by pressing the PAGES key, then
using → or ← to select a Page. (Clear the Pages Menu by pressing EXIT.)
Pages Menu, showing sonar display options.
Satellite Status Page
The Satellite Status Page provides detailed information on the status of
the unit's satellite lock-on and position acquisition. To get to the
Satellite Status Page, press the PAGES key, then use → or ← to select
STATUS. (Clear the Pages Menu by pressing EXIT). This page represents a
GPS function, so it is discussed in much greater detail in Sec. 6.
No matter what Page you are on, a flashing current position
indicator/question mark symbol and flashing GPS data displays
indicate that satellite lock has been lost and there is no position
confirmed.
47
WARNING:
Do not begin navigating with this unit until the numbers
have stopped flashing!
Satellite Status Page.
Navigation Page
This screen has a compass rose that not only shows your direction of
travel, but also the direction to a recalled waypoint. To get to the
Navigation Page, press PAGES| → or ← to NAVIGATION|EXIT.
This page represents a GPS function, so it is discussed in much greater
detail in Sec. 6.
The Navigation Page (left); navigation with sonar (right).
Map Page
The Map Page screens show your course and track from a "bird's-eye"
view, on a moving map. By default, this unit shows the map with north
always at the top of the screen. The arrow in the center of the screen is
your present position. It points in the direction you're traveling.
49
Pages Menu, showing sonar chart display option commands (left).
Sonar display options: full sonar chart (left) and split zoom chart.
Sonar chart display options (from left) digital data and FlashGraf.
50
Sonar Page Menu. Most of these functions are discussed in Sec. 4.
Sonar Page, showing full sonar chart mode.
You can customize how the Sonar Page displays its pictures and other data
in many ways. Your unit also includes several special sonar features and
options that can help you better interpret the underwater scene.
We'll discuss all of those features and options in Sec. 4, but to show you
how easy the unit is to operate, the following page contains a simplified,
10-step quick reference that will cover most fish finding situations. The
quick reference describes how your unit will operate with all the sonar
features in their automatic modes, which are set at the factory.
Surface clutter
Structure
Bottom signal
Fish arches
In FasTrack, fish
arches show as
horizontal bars.
Depth scale
Digital data
overlay
(depth &
temperature)
Surface signal
Zoom bar
FasTrack
bar graph
51
LCX-25C, LCX-26CHD, LCX-110C & LCX-111CHD
Sonar Quick Reference
1. Mount the transducer, antenna and unit. Connect the unit to electric
power and the transducer. (If GPS operation is desired, connect GPS
antenna, too.) Make sure the MMC is in. (See complete installation
details beginning on page 9.)
2. Launch your boat.
3. To turn on the unit, press and release PWR key.
4. Opening screen displays Map Page. Rotate through the four main
Page screens (Map Page, Satellite Status Page, Navigation Page, Sonar
Page) by pressing PAGES|← or → to select Page Name|EXIT. Switch
Pages to display Sonar Page.
5. If GPS data is desired, wait while unit locates satellites and calculates
current position. When the unit acquires position, a tone sounds and a
position acquired message appears.
6. With position acquired (if desired), head for your fishing grounds.
Your unit will automatically display digital depth and surface water
temperature in the top left corner of the screen.
The auto settings will track the bottom, displaying it in the lower
portion of the screen. The full sonar chart will scroll from right to left,
showing you what's under the boat as you cruise across the water. You
can change the display by:
Zooming in to enlarge the chart for more detail: press ZIN.
Zooming out to return to full chart mode: press ZOUT.
7. Watch the display for the appearance of fish arches. When you see
arches, you've found fish! Stop the boat and get your lure or bait into
the water at the depth indicated on the sonar chart.
8. Gauge the fish depth by visually comparing the fish arches with the
depth scale on the right side of the screen, or get a more accurate
measure with the Depth Cursor. Press MENU|↓ to DEPTH CURSOR|ENT.
Press ↓ to align the cursor line with the fish arch. The exact depth
appears in a box at the right end of the cursor line. To clear the cursor,
press EXIT.
9. If you are anchored or drifting at a very low speed, you are not
moving fast enough for a fish to return the tell-tale fish arch signal. As
you drift over a fish, or as a fish swims through the transducer's signal
cone, the fish echo will appear as a straight line suspended between the
surface and the bottom.
10. To turn off the unit, press and hold PWR key for three seconds.
54
Important Tip:
While you are experimenting and learning, it's possible to scramble
the settings so that the sonar picture disappears from your screen.
If that happens, remember that it's easy to switch back to full
automatic operation by simply restoring the factory auto settings.
Here's how:
To Restore Factory Settings
1. Press MENU|MENU|↓ to SYSTEM SETUP|ENT|↓ to RESET
OPTIONS|ENT.
2. The unit asks if you want to reset all the options. Press ← to
YES|ENT. All options are reset and the unit reverts back to the Map
Page at the 4000-mile zoom range. (Any recorded sonar logs or GPS
data will be unchanged.)
Fish Symbols vs. Full Sonar Chart
You may have noticed in the quick reference that we used fish arches in
full sonar chart mode for our example, and not the popular Fish I.D.
fish symbol feature. Here's why.
Fish I.D. is an easier way for a sonar novice to recognize a fish signal
return when he sees it. However, locating a fish via symbol has some
limitations.
Your sonar unit's microprocessor is remarkably powerful, but it can be
fooled. Some of the echoes calculated to be fish could be tree limbs or
turtles! To see what's under your boat in maximum detail, we
recommend you turn off Fish I.D. and begin learning to interpret fish
arches.
Fish I.D. is most handy when you're in another part of the boat or
performing some task that prevents you from watching the sonar
screen. Then, you can turn on Fish I.D. and the audible fish alarm.
When that lunker swims under your boat, you'll hear it!
Fish I.D. can also be useful when you want to screen out some of the
sonar detail gathered by your unit. For example, in one case, fisherman
in San Francisco Bay saw clouds of clutter in the water but no fish
arches. When a downrigger was pulled up, it brought up several small
jellyfish. The fisherman switched their Lowrance sonar to Fish I.D.,
which screened out the schools of jellyfish and clearly showed the game
fish there as fish symbols.
Other Free Training Aids
The sonar options section discusses Fish I.D., fish alarms and other
features in greater detail. If you or a friend has Internet access, you can
also learn more about interpreting what you see on your sonar screen.
55
Visit our web site, www.lowrance.com. Be sure to check out the free
Sonar Tutorial, which includes animated illustrations and more
pictures of actual sonar returns, all described in detail. There's even a
"printer friendly" version of the tutorial available on our web site…it
makes a great supplement to this operation manual!
You can also download a free copy of our Sonar Viewer software. This
PC-based software application plays back any sonar chart log recorded
with a Lowrance sonar product. Features include:
• Adjustable range, zoom, sensitivity, Colorline , noise rejection,
surface clarity, etc. of the recorded file.
• Interpretation of sonar signals can be user defined.
• Operates like a Windows Multimedia Player with forward,
reverse, pause, fast forward, fast reverse, and scroll buttons.
• Adjustments update the entire record displayed
• Window can dynamically be sized on your monitor.
• Mouse cursor shows GPS position, depth and sounding number
anywhere on the visible record.
For the ultimate training aid, be sure to download the free emulator
software for your unit. Aside from being just plain fun, this program
can help you learn both basic and advanced operations without burning
boat fuel! Lowrance is the first sonar manufacturer to provide this type
of training tool for customers.
This PC application simulates the actual sonar/GPS unit on your
computer. You can run it from your computer keyboard or use your
mouse to press the virtual keys. Easy download and installation
instructions are available on our web site.
56
A free training emulator is available for your unit on our web site.
The emulator works exactly like your real sonar/GPS unit. Using the
Sonar Simulator and GPS Simulator features, it allows you to play
back sonar logs, run GPS routes and trails, even create real waypoints
you can use in the field! You can even take snapshots of the Sonar
Chart and print them or e-mail them to friends.
57
Section 4:
Sonar Options & Other Features
Material in this section is arranged in alphabetical order.
ASP (Advanced Signal Processing)
The ASP feature is a noise rejection system built into the sonar unit
that constantly evaluates the effects of boat speed, water conditions
and interference. This automatic feature gives you the best display
possible under most conditions.
The ASP feature is an effective tool in combating noise. In sonar terms,
noise is any undesired signal. It is caused by electrical and mechanical
sources such as bilge pumps, engine ignition systems and wiring, air
bubbles passing over the face of the transducer, even vibration from the
engine. In all cases, noise can produce unwanted marks on the display.
The ASP feature has four settings — Off, Low, Medium and High. If
you have high noise levels, try using the "High" ASP setting. However,
if you are having trouble with noise, we suggest that you take steps to
find the interference source and fix it, rather than continually using the
unit with the high ASP setting.
There are times when you may want to turn the ASP feature off. This
allows you to view all incoming echoes before they are processed by the
ASP feature.
Sonar Menu with Sonar Features selected (left). The Sonar Features
menu (right), Noise Rejection selected with ASP at default low setting.
To change the ASP level:
1. From the Sonar Page, press MENU|↓ to SONAR FEATURES|ENT.
2. Press → then ↓ to NOISE REJECTION|ENT.
3. Press ↓ or ↑ to select a setting, then press ENT.
4. To return to the previous page, press EXIT|EXIT.
78
feet. This will entered as a negative 3.5 feet, which makes the depth
indicators perform as if the transducer's lower in the water than it really
is.
1. Press MENU|MENU|↓ to SONAR SETUP|ENT.
2. Use ↓ to scroll down to KEEL OFFSET, then press ENT. The Keel Offset
dialog box appears. Press ↓ to change the plus (+) sign to a minus (–)
sign.
3. Press → to the first number, then press ↑ to change the number to 3.
4. Press → to the second number, then press ↑ to change the number to
5, then press EXIT. The depth indicators now accurately show the water
depth beneath the keel.
NOTE:
If knowing the exact depth of water beneath the keel is less
important, you can calibrate the depth indicators so that they show
the actual water depth from surface to bottom. To do this, first
measure the distance from the face of the transducer to the surface
(the water line on the boat). In this example, we will use 1.5 feet. This
will be entered as a positive 1.5 feet, which makes the depth
indicators perform as if the transducer's higher in the water than it
really is.
1. Press MENU|MENU|↓ to SONAR SETUP|ENT.
2. Use ↓ to scroll down to KEEL OFFSET, then press ENT. The Keel
Offset dialog box appears with a plus (+) sign at the front of the
box.
3. Press → to the first number, then press ↑ to change the number
to 1.
4. Press → to the second number, then press ↑ to change the
number to 5 and press EXIT. The depth indicator now accurately
shows the water depth from surface to bottom.
Sensitivity & Auto Sensitivity
Sensitivity controls the ability of the unit to pick up echoes. A low
sensitivity level (from zero to 50 percent) excludes much of the bottom
information, fish signals, and other target information.
High sensitivity levels let you see this detail, but it can also clutter the
screen with many undesired signals. Typically, the best sensitivity level
shows a solid bottom signal with some surface clutter.
Produkt Specifikationer
| Mærke: | Lowrance |
| Kategori: | Skibsradar |
| Model: | LCX111C |
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