Raymarine L1250, L1250RC, L755Rc, L760, L760RC Owner's Handbook Manual

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PLUS Series

Fishfinders

Owner’s Handbook

Document number: 81195_2 Date: August 2002

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Plus Series Fishfinders iii

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Plus Series Fishfinders

Owner’s Handbook

August 2002

Intended Use

Raymarine fishfinding. The combined Fishfinder/Chartplotter devices are intended for recreational fishfinding and course chartplotting. The optional chartplotter function is intended as an aid to navigation and should not be relied upon as a substitute for official navigation charts.

SAFETY NOTICES

This equipment must be installed and operated in accordance with the instructions contained in this manual. Failure to do so can result in personal injury and/or navigational inaccuracies. In particular:

1. HIGH VOLTAGE. The LCD display unit contains high voltages. Adjustments require specialized service procedures and tools only available to qualified service technicians – there are no user serviceable parts or adjustments. The operator should never remove the display unit cover or

attempt to service the equipment.

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Plus Series Fishfinders are intended for recreational

2. NAVIGATION AID. The chartplotter unit is only an aid to navigation. Its accuracy can be affected by many factors, including equipment failure or defects, environmental conditions, and improper handling or use. It is the user’s responsibility to exercise common prudence and navigational judgements. This unit should not be relied upon as a substitute for such prudence and judgement.

EMC Conformance

All Raymarine equipment and accessories are designed to the best industry standards for use in the recreational marine environment.

The design and manufacture of Raymarine equipment and accessories conform to the appropriate Electromagnetic Compatibility (EMC) standards, but correct installation is required to ensure that performance is not compromised.

Preface

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Plus Series Fishfinders

This handbook describes the following Raymarine

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Plus Series Fishfinder

Displays:

• L755RC Plus 7" Monochrome LCD Fishfinder Display with Chartplotter

• L760 Plus 7" Color LCD Fishfinder Display

• L760RC Plus 7" Color LCD Fishfinder Display with Chartplotter

• L1250 Plus 10.4" Color LCD Fishfinder Display

• L1250RC Plus 10.4" Color LCD Fishfinder Display with Chartplotter

The combined Fishfinder/Chartplotter display units include a cartridge holder assembly that contains two slots for C-MAP NT or NT+ chart cards. Fishfinder systems require an appropriate Raymarine transducer unit and inter-connecting cable. Details for selecting and installing the transducer are described in document number 81196, Transducers for Fishfinders Owner’s Handbook.

This handbook contains very important information on the installation and operation of your new fishfinder. In order to obtain the best results in operation and performance, please read this handbook thoroughly.

Raymarine’s Technical Services representatives or your local dealer will be available to answer any questions you may have.

TFT LCD Displays

The colors of the display may seem to vary when viewed against a colored background or in colored light. This is a perfectly normal effect that will be seen with all color LCD displays.

In common with all Thin Film Transistor (TFT) LCD displays, the screen may exhibit a few (less than 20) wrongly illuminated pixels. These may appear as black pixels in a light portion of the screen, or as colored pixels in black areas.

CAUTION:

To provide protection against the damaging effects of UV light, it is advisable to replace the sun cover provided when the color LCD display is not in use.

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Plus Series Fishfinders v

Raymarine Products and Services

Raymarine products are supported by a network of Authorized Service Representatives. For information on Raymarine products and services, contact either of the following:

United States Raymarine, Inc.

22 Cotton Road, Unit D Nashua, NH 03063-4219 USA Telephone: 1-603-881-5200

1-800-539-5539

Fax: 1-603-864-4756

Europe Raymarine Ltd

Anchorage Park Portsmouth, Hampshire England PO3 5TD Telephone: +44 (0) 23 9269 3611 Fax: +44 (0) 23 9269 4642

Or, you may contact us on the World Wide Web at www.raymarine.com.

Warranty

To register your minutes to fill out the warranty registration card found at the end of this handbook. It is very important that you complete the owner information and return the card to the factory in order to receive full warranty benefits.

Technical Accuracy

The technical and graphical information contained in this handbook, to the best of our knowledge, was correct as it went to press. However, the Raymarine policy of continuous improvement and updating may change product specifications without prior notice. As a result, unavoidable differences between the product and handbook may occur from time to time, for which liability cannot be accepted by Raymarine.

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Plus Series display unit ownership, please take a few

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Plus Series Fishfinders

Raymarine is a registered trademark of Raymarine Limited. SeaTalk is a registered trademark of Raymarine Limited.

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is a trademark of Raymarine Limited.

Pathfinder Plus is a trademark of Raymarine Limited.

This product contains technology provided under license by Acorn Group plc. The copyright of this intellectual property is acknowledged by Raymarine, Inc. as are Acorn’s trademarks and patents. Acorn’s world wide web address is http://www.acorn.com.

Contents vii

Contents

EMC Conformance ......................................................................... iii

Warranty .......................................................................................... v

Chapter 1: Overview ......................................................................................... 1-1

1.1 Introduction .................................................................................. 1-1

General ..........................................................................................1-4

Introduction to

Display Unit Features ................................................................... 1-5

Operating Modes ..........................................................................1-6

1.2 The Fishfinder Display .................................................................1-8

Fishfinder Options ........................................................................ 1-9

Fishfinder Functions ................................................................... 1-10

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Systems ......................................................... 1-5

1.3 The Chartplotter Display ............................................................ 1-12

Chartplotter Display Options ...................................................... 1-13

Chartplotter Functions ................................................................ 1-15

1.4 Operating Controls .....................................................................1-16

Trackpad and Cursor ...................................................................1-17

Dedicated Keys ...........................................................................1-19

Soft Keys .....................................................................................1-19

Pop-Up Menus ............................................................................1-20

Database Lists ............................................................................. 1-21

Chapter 2: Installation ..................................................................................... 2-1

2.1 Introduction .................................................................................. 2-1

Planning the Installation ............................................................... 2-3

EMC Installation Guidelines ........................................................ 2-3

2.2 Unpacking and Inspecting the Components ................................. 2-5

2.3 Selecting the Equipment Location ................................................ 2-7

2.4 Cable Runs .................................................................................. 2-11

Display Unit Mounting Location .................................................. 2-7

Power Cable ................................................................................ 2-11

Transducer Cable ........................................................................ 2-11

viii

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Plus Series Fishfinders

2.5 Mounting the Display Unit ......................................................... 2-12

2.6 System Connections ...................................................................2-14

Display Unit Connection ............................................................ 2-15

EMC Conformance ..................................................................... 2-18

2.7 Integrated Systems ......................................................................2-18

High Speed Bus (

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) ................................................................2-19

SeaTalk and NMEA In ................................................................ 2-22

Using the SeaTalk Auxiliary Junction Box .................................2-26

Data Output ................................................................................. 2-28

Data Conversion ......................................................................... 2-28

2.8 Integrated System Checks .......................................................... 2-29

Chart Display .............................................................................. 2-29

Received Data ............................................................................. 2-29

Transmitted Data ........................................................................2-29

Chapter 3: Getting Started & Adjusting the Display ................................... 3-1

3.1 Introduction .................................................................................. 3-1

Conventions Used ......................................................................... 3-1

Simulator ......................................................................................3-1

3.2 Switching the Display On and Off ................................................ 3-2

Simulator Mode ............................................................................ 3-5

Changing the Lighting & Contrast (Monochrome LCD) ............. 3-6

Changing the Brightness & Color Settings (Color LCD) ............. 3-6

3.3 Controlling the Display .................................................................3-9

Selecting the Mode of Operation .................................................. 3-9

3.4 Fishfinder Display Control Functions ........................................ 3-15

Viewing Data Boxes ...................................................................3-15

Changing the Scroll Speed ..........................................................3-15

Selecting the Power Setting ........................................................3-17

Changing the Fishfinder Range .................................................. 3-17

Selecting the Frequency .............................................................. 3-20

3.5 Chart Display Control Functions (Raychart Models) ................. 3-26

Using Bottom Lock .....................................................................3-21

Using A-Scope ............................................................................3-23

Using Zoom ................................................................................ 3-24

Customizing the Screen Presentation Options ............................ 3-26

Contents ix

Moving Around the Chart ........................................................... 3-28

Chapter 4: Fishfinder Operations ................................................................... 4-1

4.1 Introduction .................................................................................. 4-1

4.2 Interpreting and Adjusting the Fishfinder Image ..........................4-1

Fish Indications ............................................................................. 4-2

Bottom Indications .......................................................................4-3

Using White Line .......................................................................... 4-4

Adjusting Display Gain (Sensitivity) ........................................... 4-4

4.3 Fishfinder Data Window ...............................................................4-7

4.4 Using Alarms ................................................................................ 4-8

4.5 Using VRM to Determine Depth & Distance from Boat .............. 4-9

4.6 Waypoints ................................................................................... 4-11

Placing a Waypoint ..................................................................... 4-11

4.7 MOB ........................................................................................... 4-13

Chapter 5: Standard Chart Operations .......................................................... 5-1

5.1 Introduction .................................................................................. 5-1

5.2 Using Chart Cards ......................................................................... 5-2

Inserting a Chart Card ................................................................... 5-2

Removing a Chart Card ................................................................ 5-3

Displaying the Chart Data .............................................................5-3

Displaying Chart Object and Source Information ........................5-4

5.3 Working with Waypoints .............................................................. 5-8

Introduction ..................................................................................5-8

Placing a Waypoint ....................................................................... 5-9

Selecting a Waypoint ..................................................................5-12

Waypoint Data Display ............................................................... 5-13

Editing the Waypoint Details ......................................................5-13

5.4 Working with Routes .................................................................. 5-18

Erasing a Waypoint ..................................................................... 5-15

Moving a Waypoint .................................................................... 5-15

Using the ST60 or ST80 Navigator Keypad ...............................5-16

Creating a New Route .................................................................5-19

Saving the Current Route ............................................................5-22

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Plus Series Fishfinders

Clearing the Current Route ......................................................... 5-24

Retrieve a Route From the Database ........................................... 5-24

Displaying Route Information .................................................... 5-25

Using the Route List to Erase and Name a Route ....................... 5-27

Editing a Route ...........................................................................5-28

5.5 Following Routes and Going to Points ....................................... 5-30

Follow a Route ............................................................................ 5-30

Target Point Arrival .................................................................... 5-31

Other Follow Route Options .......................................................5-32

Going To an Individual Target Point ........................................... 5-33

Stop Follow or Stop Goto ............................................................ 5-34

5.6 Transferring Waypoints and Routes ...........................................5-35

5.7 Using Tracks ............................................................................... 5-39

Setting Up a Track ...................................................................... 5-40

Clearing the Current Track ......................................................... 5-40

Managing Tracks ........................................................................5-40

SmartRoute .................................................................................5-42

5.8 Typical Chart Scenarios ..............................................................5-43

Place and Goto a Waypoint ......................................................... 5-44

Make and Follow a Route ...........................................................5-46

Review Your Passage Plan .......................................................... 5-48

Chapter 6: Further Chart Operations ............................................................. 6-1

6.1 Introduction .................................................................................. 6-1

6.2 Measuring Distances Using the VRM/EBL Key .......................... 6-2

6.3 Alarms and Timers ........................................................................ 6-4

Alarm Reporting ........................................................................... 6-4

Setting Alarms and Timers ........................................................... 6-5

6.4 Man Overboard (MOB) ................................................................ 6-6

6.5 Cursor Echo .................................................................................. 6-7

6.6 Radar Overlay ............................................................................... 6-7

6.7 GPS Setup ..................................................................................... 6-9

6.8 Data Log Mode ........................................................................... 6-10

Contents xi

Chapter 7: Setting Up the System Defaults .................................................. 7-1

7.1 Introduction .................................................................................. 7-1

7.2 Changing the Set Up Parameters .................................................. 7-2

7.3 System Set Up Parameters ............................................................ 7-4

Data Boxes .................................................................................... 7-6

Bearing Mode ............................................................................... 7-6

Cursor Reference ..........................................................................7-6

Cursor Readout ............................................................................. 7-7

Day/Night (Monochrome Display only) ...................................... 7-7

Help ...............................................................................................7-7

Soft Keys .......................................................................................7-7

Key Beep ...................................................................................... 7-7

MOB Data ..................................................................................... 7-8

Autopilot Pop Up .......................................................................... 7-8

Menu Timeout Period ................................................................... 7-8

Units ..............................................................................................7-8

Variation Source ........................................................................... 7-8

Bridge NMEA Heading ................................................................ 7-9

NMEA-Out Set Up .......................................................................7-9

Cursor Echo (Systems with Radar Display) ............................... 7-11

Date and Time Settings ............................................................... 7-11

GPS SOG/COG Filter ................................................................. 7-11

Compass Set Up .......................................................................... 7-12

Language ....................................................................................7-12

Simulator ....................................................................................7-12

7.4 Fishfinder Set Up Parameters ..................................................... 7-13

Target Depth ID ..........................................................................7-13

Color Bar .....................................................................................7-13

Depth Digit Size ..........................................................................7-14

Sonar HSB Mode ........................................................................ 7-14

Depth Offset ................................................................................7-14

Speed Calibrate ........................................................................... 7-14

Temperature Calibrate ................................................................ 7-14

Sonar History ..............................................................................7-14

Depth Range (L1250 Plus and L1250RC Plus only) .................. 7-15

Sonar Simulator ..........................................................................7-15

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Plus Series Fishfinders

7.5 Chart Set Up Parameters (Raychart Models) ..............................7-16

Customize Chart .........................................................................7-16

Plotter Mode ...............................................................................7-17

Chart Orientation ........................................................................ 7-17

Object Information ..................................................................... 7-18

Palette (Color LCDs only) .......................................................... 7-18

Waypoint Options ....................................................................... 7-18

Vectors ........................................................................................ 7-18

Radar/Chart Synch (Systems with Radar Display) ..................... 7-19

Datum Selection ......................................................................... 7-19

Position Offset ............................................................................7-19

Chapter 8: Maintenance and Problem Solving ............................................. 8-1

8.1 Maintenance ................................................................................. 8-1

Routine Checks ............................................................................. 8-1

Cleaning Instructions .................................................................... 8-1

EMC Servicing and Safety Guidelines .........................................8-2

8.2 Resetting the System ..................................................................... 8-3

8.3 Problem Solving ........................................................................... 8-4

How to Contact Raymarine ..........................................................8-5

Worldwide Support ....................................................................... 8-7

Appendix A: Specifications ...............................................................................A-1

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Plus Series Fishfinder Displays ............................................ A-1

Appendix B: Using the Auxiliary Junction Box ................................................B-1

Raystar 112, 105, Apelco 182 and 182XT ................................... B-2

Autohelm GPS, Z260 and Z273 .................................................. B-3

Raystar 112LP (SeaTalk version) ................................................ B-4

Raystar 114 Combined GPS and Differential Beacon Receiver .. B-5

Raystar 120 WAAS Satellite Differential Receiver ..................... B-6

Appendix C: C-MAP Chart Card Features ........................................................C-1

Appendix D: SeaTalk and NMEA Data ..............................................................D-1

Appendix E: Abbreviations ............................................................................... E-1

Chapter 1: Overview 1-1

Chapter 1: Overview

1.1 Introduction

This handbook describes the following

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(High Speed Bus) Plus Series

Fishfinder displays:

Fishfinder Display Type Display Size Chartplotter

L755RC Plus Monochrome LCD 7 inch Yes

L760 Plus L760RC Plus

L1250 Plus L1250RC Plus

Raymarine

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Color LCD Color LCD

Plus Series Fishfinders use the latest processor and sonar

7 inch 7 inch

10.4 inch

No Ye s

technology for accurate performance and echo detection. Units feature 7" or

10.4" daylight viewable monochrome or color LCD displays and the Raychart (RC) models include a full C-Map NT/NT+ Chartplotter. With up to 600 watts output power and dual frequency operation,

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Plus Series Fishfinders provide performance from 1 up to 3000 ft. In fact, the L1250 Plus and L1250RC Plus units offer 1000 watts power and a depth range up to 5000 ft.

Introduction

Use the High Speed Bus (

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), SeaTalk and NMEA interfaces to provide an integrated system with additional devices, such as Pathfinder Plus Radar, Raymarine Autopilot and Raystar Wide Area Augmentation System (WAAS) GPS products.

Connecting an Radar and to an

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Series Plus Fishfinder to an

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Series Plus Chartplotter enables fishfinder, radar, and

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Series Pathfinder Plus

chart data to be displayed on all three units. Similarly, chart data can be repeated on a fishfinder-only device from any via

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from any other

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device with chart capabilities.

This handbook describes the display unit controls and details both fishfinder and chart operations. Controls that are specific to either fishfinder or chartplotter are described in fishfinder or chart sections/chapters.

Note: Many illustrations in this handbook show example screens. The screen you see on your display depends on your system configuration and set up options, so it may differ from the illustration.

1-2

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Plus Series Fishfinders

Introduction

How to Use This Handbook

If you are installing the display system yourself, you should read Chapter 2 before you start the installation. This chapter also provides information that will be useful if you are connecting your equipment.

For an overview of the display unit controls, the fishfinder and the chartplotter systems, read Chapter 1. Chapter 3 will help you start using your system.

For detailed information on fishfinder operations refer to Chapter 4.

For chartplotter operating details, refer to Chapter 5 and Chapter 6.

To change the system set up defaults, read Chapter 7.

Chapter 2 provides planning considerations and detailed instructions for installing the fishfinder display unit. It should be referred to when you are ready to install the system. Details to connect the display to other equipment

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via

, NMEA and SeaTalk are also provided.

Chapter 3 explains how to start using the display and describes how to use some of the basic fishfinder and chart functions. Chapter 3 also provides operating guidelines for typical chartplotter scenarios; these guidelines introduce you to many of the chartplotter functions.

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Plus Series system to other

Chapters 4 provides detailed operating information for the fishfinder functions - selecting depth range limits, adjusting gain, color and STC, setting alarms, using the VRM marker, marks and man overboard.

Chapter 5 provides detailed operating information for the standard chartplotter functions - using chart cards, plotting waypoints and routes, following routes and showing tracks.

Chapter 6 provides detailed operating information for further chart functions, including measuring distances, man overboard and cursor echo. It includes instructions for setting up a differential GPS.

Chapter 7 provides instructions for setting up your system to suit your preferences. You should read this chapter to determine how to set up the fishfinder and chartplotter system defaults.

Chapter 8 provides information on user maintenance, and what to do if you experience problems.

The Appendices provide additional information that you may find useful: Appendix A lists the technical specifications for the fishfinder and for the chartplotter.

Appendix B provides details on connecting the display unit to specific GPS systems.

Chapter 1: Overview 1-3

Appendix C defines the chart features shown on the chart display.

Appendix D defines the SeaTalk and NMEA data that is transferred on

integrated systems.

A List of Abbreviations, Index and warranty information are included at the end of the handbook.

A summary of the fishfinder and chartplotter controls are provided on the Quick Reference Cards supplied with your system.

Terminology

The following terminology is used to describe the various display unit configurations:

Master A unit capable of sourcing specific data such as

fishfinder, chart, or radar data.

Repeater A unit capable of displaying data, such as radar,

from the High Speed Bus.

Fishfinder Display Unit providing Fishfinder Master and Radar

Repeater functionality. The L755RC, L760RC, and L1250RC Plus displays also provide Chart Master functionality.

Radar Display Unit providing Radar Master, Fishfinder

Repeater and Chart Reader functionality.

Introduction

Chart Display Unit providing Chart Master, Fishfinder

Repeater and Radar Repeater functionality.

Combined Display Unit providing both Fishfinder and Chart or

Radar and Radar Repeater functionality.

Integrated System Additional instruments are connected via

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SeaTalk or NMEA interfaces.

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High Speed Bus- links up to ten compatible display units. For full display and control between

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Plus Series display units, the units must be

connected via

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and SeaTalk.

General

1-4

General

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Plus Series Fishfinders

The

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Plus Series Fishfinder system, illustrated below, is comprised of the

7" or 10.4" LCD display unit, fishfinder transducer, and associated cables.

D4866-2

Figure 1-1: Basic Fishfinder System

Display Unit

The installed either above or below deck.

The unit includes:

• 7" or 10.4" LCD display

• Trackpad

• Eleven dedicated (labeled) control keys

• Four soft keys (unlabeled) whose functionality changes

• Two slots for the C-MAP NT

The display and keys can be illuminated for night-time use.

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Plus Series LCD display unit is waterproof to CFR46 and can be

or NT+ chart cards (Raychart models only)

Transducer

The or transom-mount.

Transducers can measure water depth, temperature, distance traveled, and/or speed. It is important to position your transducer correctly. For details on transducers, including location and installation instructions, see document number 81196, Transducers for Fishfinders Owner’s Handbook.

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Plus Series Fishfinders require a transducer, either thru-hull, in-hull,

Note: If speed and temperature are being input via SeaTalk, these values are displayed instead of the speed and temperature inputs from the transducer.

Chapter 1: Overview 1-5

Introduction to

The compatible units. For example, fishfinder data is transferred from the fishfinder (the master display) via the and controlled on any other display). However, if you change, say, depth range on one display, it affects all displays showing fishfinder or fishfinder/chart overlay.

In particular, you can connect your Series Pathfinder Plus Radar and then to a remote to provide fishfinder, chart, and radar functionality on all three displays.

Full functionality of the fishfinder is achieved when it is part of an integrated system, with other equipment (in addition to other via SeaTalk or NMEA 0183. Data from this equipment including position and heading is displayed on the display and is used in calculations.

It is possible to connect up to ten provide an integrated system. Earlier HSB (non-Plus) Display units can be upgraded to provide Displays on page 2-20 for details.

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(High Speed Bus) connection enables transfer of data among

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Systems

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connection and can be displayed

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Plus Series LCD or CRT display (the repeater

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Series Plus Fishfinder to a remote

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Series Plus Chartplotter

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Plus units) connected

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Plus Series LCD or CRT displays to

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compatibility. See Connecting hsb2 Plus Series

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hsb2 Systems

Introduction to

Note: Please contact Raymarine Customer Service or your authorized Raymarine dealer about upgrading your existing HSB (non-Plus) display units to provide full

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The

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Plus functionality.

system can include several chartplotter displays, each with two chart cartridge slots. Each display can access two local and up to six remote chart cartridges. Charts can be controlled independently on each display, even when a remote chart cartridge is being used. Details on connecting the equipment are given in Chapter 2.

Display Unit Features

Fishfinder

• Displays depth, speed, and temperature, if the transducer is so equipped

• Dual or split frequency fishfinder display – 50 kHz, 200 kHz

• Display options – fishfinder window, zoom, bottom lock and A-Scope

• Uses position data from GPS, DGPS, WAAS or Loran-C technology

• Displays and transfers

• Provides full control of data from other

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, SeaTalk and NMEA data

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instruments

• Half-screen windows to display additional data: depth/temperature graph,

Course Deviation Indicator (CDI), Bearing and Distance Indicator (BDI), navigation data

1-6

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Plus Series Fishfinders

Operating Modes

Chartplotter

• Displays information from the C-MAP NT® and NT+ chart cards

(C-Cards)

• Three full-screen operating modes: Fishfinder, Chart, Data Log (if appro-

priate data is available)

• View fishfinder and chart simultaneously

• Choice of chart orientation: Head Up, Course Up and North Up

Operating Modes

If you have a combined Fishfinder/Chartplotter unit, or have an Series Chartplotter connected to a Fishfinder, three full-screen modes – fishfinder, chart and data log are available; you select the operating mode using the DISPLAY key as described in Chapter 3.

You can also set Windows On to split the display into two half-screen windows to show supplementary data, or to display fishfinder and chart simultaneously. The main operating mode (fishfinder or chart) is displayed in the upper window; you choose what is displayed in the lower window.

In addition, if you have an connected, you can set the display to radar mode; this provides similar functionality to a combined Pathfinder Radar/Chartplotter.

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Series Pathfinder Plus Radar display

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Plus

If you only have an L760 Plus or L1250 Plus fishfinder-only unit connected, only fishfinder mode is available.

Chapter 1: Overview 1-7

Half -Screen Window Options

The following information, if available on your system, can be shown:

Table 1-1: Window Options for Combined/Integrated Systems

Full-screen mode

Fishfinder Mode Depth/temp, Chart, CDI, BDI, or Data Depth/temp, Chart or CDI, BDI

Chart Mode CDI, BDI, Nav Data or Fishfinder CDI, BDI, Nav Data, Fishfinder or

Radar Mode Not Available CDI, BDI, Chart or Nav Data

Data Log Mode Half-screen Windows not available Windows not available

Half-screen Window Options Fishfinder/Chart Display only

Half-screen Window Options Fish/Chart + Radar Displays

Radar

• Chart display (when in Fishfinder or Radar mode)

Fishfinder display (when in Chart mode): Radar display (when in Chart mode):

If data is available, either as a function of the combined display unit or via the

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link, it can be displayed.

• Depth/temp graph (Fishfinder mode): This shows a plot water tempera-

ture and depth against time.

• Data (Fishfinder mode): This option splits the fishfinder vertically. The

left hand window displays data boxes; there are three different sets of data (A, B and C) that you can select for display.

Operating Modes

• CDI: This gives the Course Deviation Indicator graphical display, with

data relating to the target waypoint.

• BDI: This gives the Bearing and Distance Indicator graphical display, with

data relating to the target waypoint.

• Nav Data (Chart mode): This shows sixteen data boxes, providing navi-

gational data in the units specified in your set up. Note that up to 6 of these data boxes are also available as a user-selectable group (see Section 7.3).

For details on the radar, refer to the Owner’s Handbook supplied with your radar.

Note: MARPA functionality is available on the fishfinder display if you have an integrated system with a Pathfinder radar master display that includes MARPA as a primary function.

Details on selecting windows are given in Chapter 3.

1-8

1.2 The Fishfinder Display

The Fishfinder

Display

When you first turn the display unit on and select fishfinder mode, the

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Plus Series Fishfinders

scrolling bottom graph is displayed. This is a graphical representation of the echoes seen by the Fishfinder. As time passes, this display scrolls from right to left and becomes a record of the echoes seen. A typical display is shown in Figure 1-2.

The images at the right hand side of the display are the most recent echoes. Some echoes indicate fish, and others show the bottom. It can also indicate bottom structures, such as a reef or shipwreck. The upper and lower depth range limits are shown.

The fishfinder screen includes a status bar that displays transducer frequency and indicates which auto settings are enabled (Gain, Color Gain, Range, Zoom and Frequency), and alarm status (fish and shallow/deep water depths).

You can customize the fishfinder by choosing what is displayed and how it is displayed (including language and units). For example, you can set the scroll speed of the bottom graph display, and you can select the range to adjust the amount of detail displayed.

You can view the cursor position and a variety of data (such as speed, heading and depth) from the transducer and other equipment in user-selectable data boxes. These data boxes can be moved around the screen and they can be switched on or off.

Chapter 3 includes details on adjusting the display, other set up options are described in Section 7.3 and Section 7.4.

Chapter 1: Overview 1-9

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50kHz

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   



 

 

 

 

Fishfinder Options

 

Figure 1-2: Typical Fishfinder Display

Fishfinder Options

The fishfinder provides controls to select additional modes:

 

ZOOMFREQUENCY

BTM.LOCK A-SCOPE

100





• Frequency – you can select the transducer frequency, 50 kHz for wide cov-

erage and deep water, 200 kHz for a detailed view, both frequencies simultaneously or auto-frequency. The default setting is auto-frequency, which determines the optimum frequency of operation based on the current depth.

• Bottom Lock – changes the operating mode to re-set the bottom. It pro-

vides a bottom-up view: the bottom is used as the reference, its image is flattened and depths are displayed here. Bottom lock mode is used primarily to filter-out the bottom structure and display fish details only.

1-10

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Plus Series Fishfinders

• A-Scope – displays a real-time image of the bottom structure and fish

Fishfinder

Functions

directly below the transducer. The A-Scope window also displays the patented Bottom Coverage width indication.

• Zoom – enlarges all or part of the bottom graph display. You can select x2,

x4 or x6 magnification and the zoom area can be automatically or manually adjusted.

You can select Zoom, Bottom Lock or A-Scope to be vertically split with the bottom graph display. Alternatively, Zoom or Bottom Lock can be displayed in place of the bottom graph display.

If you choose dual frequency, the scrolling bottom graph is displayed in both frequencies, split horizontally. Zoom, Bottom Lock or A-Scope can be displayed with the dual frequency graph.

All of these options are available when the fishfinder is displayed in a halfscreen window.

Fishfinder Functions

The

• Automatic or manual selection of scroll speed for bottom graph display

• Automatic or manual selection of transducer frequency

• Automatic or manual selection of upper and lower depth range limits

• Adjustment of foreground/background color and image color threshold

• Adjustment of Gain, Color Gain and STC

• Set up alarms for Fish, Shallow water and Deep water

• VRM marker to determine depth and distance

• Add marks to record important or dangerous locations

• Man Overboard (MOB) to navigate back to a person or object

Operation of these fishfinder functions is described in Chapter 3 and Chapter 4.

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Plus Series Fishfinder includes the following functions:

(contrast control on the L755RC Plus monochrome display)

Chapter 1: Overview 1-11

AUTO G Z

SPLIT

AUTO G Z

SPLIT

Functions

Fishfinder

200kHz

50kHz

100

200kHz

50kHz

ZOOMFREQUENCY

     

AUTO G Z

BTM.LOCK A-SCOPE

200kHz

100

AUTO G

ZOOMFREQUENCY

SPLIT

200kHz

50kHz

100 7.9

100

BTM.LOCK A-SCOPE

52.3

100

ZOOMFREQUENCY

          

BTM.LOCK A-SCOPE

X4BL

ZOOMFREQUENCY

Figure 1-3: Fishfinder Display Options

100

BTM.LOCK A-SCOPE



1-12

The Chartplotter

1.3 The Chartplotter Display

Display

The L755RC, L760RC and L1250RC Plus Fishfinders include a Chartplotter.

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Plus Series Fishfinders

The chartplotter includes a small-scale world map and detailed navigation information is displayed when a cartographic chart card is installed. The details displayed depend on the chart zoom level selected. A plotter mode is provided to enable route plotting and tracking at large scales even when a chart card is not installed A typical chartplotter screen is shown in Figure 1-4.

Note: For an L760 Plus or L1250 Plus fishfinder-only unit to have access to chartplotter functionality, it must be connected to an

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Plus Series Chart-

plotter device. This is discussed fully in the section Integrated Systems on page 2-18.

The chartplotter uses position information from a GPS, DGPS, WAAS, or Loran-C instrument. Once the position fix has been established, your vessel’s position, if on screen, is shown as a boat shape pointing in the direction of the current heading (or COG if heading data is not available). If no heading or COG data is available, the vessel is shown as a circle.

The chartplotter screen includes a status bar that displays chart scale, with either cursor position, range and bearing or, when the cursor is homed to the vessel (by pressing FIND SHIP), vessel position, Speed Over Ground (SOG), Course Over Ground (COG) and fix type (VES POS, DIF FIX or SD FIX). The status bar also indicates if radar/chart overlay is switched on.

Any waypoints you have placed are displayed (unless you turned them off in Chart Set Up as described in Chapter 7) and the current route is shown. Information can be viewed on-screen by positioning the cursor over a waypoint, current route or chart object. The chartplotter screen can also show additional information, depending on your currently selected options, set up selections and data available from other equipment.

An example chart display, in its default configuration, with a chart card installed, is shown in the following illustration.

Several functions are available to control the display as follows:

• Zoom in/out and Pan the Display

• Offset the Chart or Center the Chart around the Vessel

• Overlay Radar Targets onto the Chart Display

• Synchronize the Chart and Radar (if radar data is available)

Operation of these functions is described in Chapter 3.

Chapter 1: Overview 1-13

Chartplotter Display Options

Set up options allow you to customize the chart by choosing what is displayed (including cartographic features), how it is displayed (including language and units), heading mode and how the chartplotter operates with other You can also view the cursor position and a variety of data from other equipment (for example, speed, heading, depth, wind, and tide information) in a set of user-selectable data boxes. The cursor box and user-selected data boxes can be moved around the screen and they can be turned on or off. You can also obtain autopilot status and locked heading information.

Display options are provided in System Set Up and Chart Set Up as described in Chapter 7. Chart set up options allow you to customize the chart by selecting:

• What cartographic features and level of detail are displayed

• The chart color palette (shade or sunlight)

• Chart orientation (north up, head up or course up), datums and position off-

set

hsb

units.

Chartplotter

Display Options

• How waypoints are displayed (symbols and numbers) and how chart

object information is displayed

• Vectors for heading, COG and tide

In addition Screen Presentation Options, described in Chapter 3 are provided to switch:

• Cursor Box and Databoxes On/Off

• Chart Grid On/Off

• Custom Chart Details On/Off

Note: When you turn the display off and on again, these settings are retained in memory.

1-14

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Plus Series Fishfinders

Display Options

Chartplotter

Chart Range

Chart Boundary

Waypoint

Object data box -

for object selected by cursor

Default soft key labels

These can be turned off: press any soft key to redisplay them. Different labels are displayed when you press a key.

Status Bar

Vessel Position

Cursor -

selecting chart object

Depth Area

Cursor position box

Shows the current cursor position as either Range/Bearing or Lat/Long. You can move this box to your preferred position on the screen or turn it off.

D4275-3

Figure 1-4: Typical Chartplotter Display

Custom Chart Details

The chartplotter set up options include a sub-menu to customize the cartographic features. This menu allows you to switch features On, Off, or control them using the CUSTOM soft key. The factory default settings for the Custom chart options are as follows:

ON: Chart text, chart boundaries, depth contours, navigation marks

and land features.

OFF: Caution and routing data. CUSTOM: Spot sounding, light sectors, marine features.

Note: The factory default for the

Icons are displayed in detail, depth shading limit is 10 m and depth contour display is 0-100 m.

A complete list of chart features is given in Appendix C.

CUSTOM settings is ON

Chapter 1: Overview 1-15

Chartplotter Functions

The

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Plus Series Chartplotter includes the following functions:

• Display C-MAP NT and NT+ C-Card chart information including Ports

and Tides (if available)

• View chart information (if available) for the Nearest Port

• Place, Move, Erase and Edit a Waypoint

• Goto Waypoint or Cursor

• Create, Save, Name, Edit and Follow a Route

• Review Route and Waypoint Lists

• Display vessel’s track; Save and Name the Track for re-call to screen

• Measure Chart Distances and Bearings on-screen

• Set Up Alarms and Timers

• Man OverBoard (MOB) to navigate back to a missing person or object

• Differential GPS set up page

Operation of these functions is described in Chapter 5 and Chapter 6.

Functions

Chartplotter

1-16

Operating Controls

1.4 Operating Controls

You operate the fishfinder and chart systems using a variety of controls:

• A trackpad providing up, down, left, right and diagonal control of an on

screen cursor

• Eleven dedicated (labeled) control keys

• Four soft keys with labels displayed on the screen

• Pop-up menus, displayed on-screen, from which you select options

• Database lists, displayed on-screen, which enable you to edit items

Note: The cursor is the cross-hair symbol (+) visible on the display. You move the cursor using the trackpad and use it to select a position or item on the chart.

The control keys are shown in Figure 1-6. They are back-lit for night-time use when the display brightness is dimmed. When you use a control, a help message is displayed at the top of the screen (unless you switch help off as described in Chapter 7). The following paragraphs describe the controls and on-screen facilities.

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Plus Series Fishfinders

Soft keys

Figure 1-5: 7" LCD Display Control Keys

Dedicated keys

Trackpad

D3596-4

Dedicated keys

Chapter 1: Overview 1-17

Figure 1-6: 10.4" LCD Display Control Keys

Trackpad and Cursor

The trackpad has several functions:

Soft keys

Dedicated keys

D5440-1

Dedicated keys

Trackpad

Cursor

Trackpad and

• To move the cursor around the screen

• To select an item from a pop-up menu

• To adjust a variable soft key control

The cursor is used to:

• Select a position on the screen

• Select an item, for example, chart object on the chartplotter

• Pan the chart display

Moving the Cursor

You can press on any of the four sections of the trackpad to move the cursor in that direction (up, down, left or right), or press two sections at the same time to move diagonally. The cursor moves faster as you continue to press the trackpad. The current cursor position is shown in the cursor data box (if selected).

1-18

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Plus Series Fishfinders

Trackpad and

Cursor

Note: During many operations you cannot move the cursor around the screen; if you cannot move the cursor using the trackpad, check the default soft keys are displayed (unless they have been switched OFF in system set up). If not, press ENTER

until they are displayed.

The cursor is normally displayed as a crosshair. However, in chart mode, if you have not moved the cursor for more than five seconds, when you next move it the cursor is outlined by a circle so it is easier to locate on the screen.

Context-Sensitive Cursor Control

The cursor is context-sensitive. When the cursor is positioned over special features on the display a text label appears to identify the feature as follows:

Table 1-2: Context-Sensitive Cursor Text Labels

Text Label Feature Fishfinder/Chart

BOX Data box (any type) Both

MOB Man Over Board marker Both

WPT Waypoint Both

BL Bottom Lock Fishfinder

VRM Variable Range Marker Fishfinder

ZOOM Zoom Fishfinder

A➟B

COG Course Over Ground vector Chart

HDG Heading vector Chart

POS Vessel’s position Chart

RTE Route leg Chart

TIDE Tide vector Chart

Chart Icons Various Chart

Ruler line Chart

Some items on the fishfinder/chartplotter screen, such as the cursor have information associated with them. Most information is displayed in a data box. The context-sensitive cursor allows you to move databoxes. In the case of Fishfinder VRM data, depth is displayed on the right hand side of the horizontal indicator, and distance is displayed at the top of the vertical indicator.

Chapter 1: Overview 1-19

Dedicated Keys

The dedicated keys: DISPLAY, MARKS, GAIN, VRM/EBL, MULTI, ALARMS, RANGE, ENTER, CLEAR, MENU and POWER have fixed

functions; the functions are similar on all example, ALARMS is used to set up the system alarms on both a fishfinder and a chartplotter.

Some keys can be used in two ways:

• Press: Press the key momentarily and then release it. This method is used

for most key operations.

• Press and hold: Press the key and hold it down for the length of time stated

(for example, 3 seconds), and then release it.

When you press a dedicated key, one of the following happens:

i. The associated operation is performed, e.g., change chart scale

(RANGE).

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Plus Series displays. For

Dedicated Keys

As you press a key, a single audio beep confirms the key action. If the keypress is not valid for the current screen or mode, three rapid beeps sound to indicate that no response is available. If required, you can turn the key beeps off as part of your set up procedure (see Chapter 7).

Soft Keys

The four keys below the screen are called soft keys because their functions change according to the operation. The soft keys are grouped into related sets and subsets providing access to the various functions. The soft key labels are displayed on the screen just above the keys. The default soft keys are displayed until you press a key, or select an item on the screen; the soft keys associated with the action are then displayed.

The currently-selected soft key option is shown by its green background (gray for the L755RC Plus monochrome display). If the key text is displayed in gray rather than in black, it is not currently available.

ii. A pop-up menu is displayed, providing further options.

iii. A set of soft keys is displayed, providing further functions.

ZOOM MORE¬FREQUENCY

CHRT SNR

D5013-1

When you press a soft key one of the following happens:

i. The associated operation is performed, e.g., 50 kHz.

ii. A sub-set of soft keys is displayed, providing further functions.

1-20

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Plus Series Fishfinders

Pop-Up Menus

iii. A pop-up menu is displayed, providing further options.

As with dedicated keys, when you press a soft key a single audio beep confirms the key action. If the key-press is not valid for the current screen or mode, three rapid beeps sound to indicate that no response is available. If required, you can turn the key beeps off as part of your set up procedure (see Chapter 7).

Pop-Up Menus

Pop-up menus usually provide set up options. When a pop-up menu is onscreen, a set of associated soft keys is also displayed as shown in Figure 1-7.

ARRIVAL ALARM

OFF TRACK ALARM

ANCHOR ALARM

GROUNDING ALARM

COUNTDOWN TIMER

ALARM CLOCK

ALARMS SET UP

0.01nm

OFF

5M/1.0nm

00:33:00

OFF

SELECT ARRIVAL

ALARM RADIUS

D4265-4

Figure 1-7: Typical Pop-up Menu

You use the trackpad to select an option from the menu, then use the appropriate soft key to set the option. For example, you can toggle the OFF TRACK ALARM on/off.

Chapter 1: Overview 1-21

Database Lists

The waypoints, routes and tracks that you create on the chartplotter are stored in database lists. You can view these lists and select items for editing.

WAYPOINT LIST

SYMBOL NAME

WAYPOINT 001

WAYPOINT 002

WAYPOINT 003

WAYPOINT 004

WAYPOINT 005

POSITION

BRG _186°

TEMP

---°

DATE

--/--/--

50°21^966N 001°20^368W

RNG _21.0nm

DEPTH

TIME

---

--:--:--

Database Lists

GOTO

WAYPOINT

EDIT

WAYPOINT

MAKE NEW WAYPOINT

WAYPOINT TRANSFER

D4262-2

Figure 1-8: Typical Database List

As with pop-up menus, when a database list is on-screen, a set of associated soft keys is also displayed; you use the trackpad to select an item from the list, then use the appropriate soft key to edit the item. For example, you can erase a waypoint or a route.

Database Lists

1-22

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Plus Series Fishfinders

Chapter 2: Installation 2-1

Chapter 2: Installation

2.1 Introduction

Compass

Transducer

This chapter provides installation instructions for the

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Plus Series Fishfinders. Simple systems such as that in Figure 2-1 below, or integrated systems such as that in Figure 2-2 are explained (see Section 2.7). Details for mounting the

hsb

Plus Series LCD Display and connecting the equipment are

included.

Fishfinder Display

GPS

Junction

SeaTalk

Distribution Panel

Box

Introduction

NMEA

12/24V Supply

12V Supply

Figure 2-1: Typical Fishfinder System

D5441-3

12V Supply

Introduction

2-2

Transducer

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Plus Series Fishfinders

hsb

Series Master Display

GPS

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Series Repeater Display

Compass

HSB

SeaTalk

Distribution Panel

Junction

Box

NMEA

12/24V Supply

12V Supply

D5442-3

12V Supply

Figure 2-2: Fishfinder in an Integrated System

Note: If you wish to practice using the display before installation, use the simulator mode, as described in Chapter 3. For power, connect a 12V or 24V DC power supply, attaching the red wire via a quick blow fuse (6A for 12V or 4A for 24V) to positive and the black wire to negative.

If you are connecting your display to other equipment (including another

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Plus Series display unit) install then test the fishfinder display and transducer as described in this chapter. Once the display is operating correctly, you can connect it to other equipment as described in Section 2.7Integrated Systems on page 2-18, taking particular care to ensure the correct polarity of the SeaTalk supply. Section 2.7 describes the

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, SeaTalk and NMEA

interfaces.

For the Fishfinder to display depth, water temperature and speed, you must install the Depth/Speed/Temp transducer supplied with your system. For full functionality of the radar and chartplotter you need to provide position and heading data.

• Heading data enables the chart to operate in North Up and Course Up

modes. If speed data is also available the MOB function operates.

• Position data is required for full functionality of the chart display.

Chapter 2: Installation 2-3

Full details of heading, position and other data are given in Section 2.7.

Planning the Installation

Before you install your system, plan the installation, considering:

• Correct transducer for your application. See document number 81196,

Transducers for Fishfinders Owner’s Handbook.

• Location of the display unit, as described in Section 2.3

• Cable Runs, including cables for an integrated system (to provide heading

and position data, etc.), as described in Section 2.4.

EMC Installation Guidelines

All Raymarine equipment and accessories are designed to the best industry standards for use in the recreational marine environment.

Their design and manufacture conforms to the appropriate Electromagnetic Compatibility (EMC) standards, but correct installation is required to ensure that performance is not compromised. Although every effort has been taken to ensure that they will perform under all conditions, it is important to understand what factors could affect the operation of the product.

The guidelines given here describe the conditions for optimum EMC performance, but it is recognized that it may not be possible to meet all of these conditions in all situations. To ensure the best possible conditions for EMC performance within the constraints imposed by any location, always ensure the maximum separation possible between different items of electrical equipment.

Installation

Planning the

For optimum EMC performance, it is recommended that wherever possible:

• Raymarine equipment and cables connected to it are:

• At least 3 ft (1 m) from any equipment transmitting or cables carrying radio signals, e.g., VHF radios, cables and antennas. In the case of SSB radios, the distance should be increased to 7 ft (2 m).

• More than 7 ft (2 m) from the path of a radar beam. A radar beam can normally be assumed to spread 20 degrees above and below the radiating element.

• The equipment is supplied from a separate battery from that used for engine start. Voltage drops below 10 V, and starter motor transients, can cause the equipment to reset. This will not damage the equipment, but may cause the loss of some information and may change the operating mode.

• Raymarine specified cables are used. Cutting and rejoining these cables can compromise EMC performance and must be avoided unless doing so is detailed in the installation manual.

2-4

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Plus Series Fishfinders

• If a suppression ferrite is attached to a cable, this ferrite should not be removed. If the ferrite needs to be removed during installation it must be reassembled in the same position.

EMC Installation

Guidelines

Suppression Ferrites

The following illustration shows typical cable suppression ferrites used with Raymarine equipment. Always use the ferrites supplied by Raymarine.

D3548-3

Figure 2-3: Typical Suppression Ferrites

Connections to Other Equipment

If your Raymarine equipment is to be connected to other equipment using a cable not supplied by Raymarine, a suppression ferrite MUST always be attached to the cable near to the Raymarine unit.

Chapter 2: Installation 2-5

2.2 Unpacking and Inspecting the Components

Unpack your system carefully, to prevent damage to the equipment. Save the carton and packing, in case you need to return a unit for service.

Check that you have all the correct system components. These depend on your system package, as follows:

Table 2-1: Parts and Accessories

Item Part No. Supplied with: Option for:

Components

Inspecting the

Unpacking and

7” Monochrome Fishfinder/Chartplotter 7” Color LCD Fishfinder 7” Color LCD Fishfinder/ChartplotterS

10.4” Color LCD Fishfinder

10.4” Color LCD Fishfinder/Chartplotter

7” LCD Display Sun cover

10.4” LCD Display Sun cover

Handbook, Fishfinder/Chart Quick Reference Card, Fishfinder Quick Reference Card, Chart

Mounting bracket knobs (x2) 7” Display Mounting bracket assy

10.4” Display Mounting bracket assy 7” Display Flush Mount Kit

10.4” DIsplay Flush Mount Kit

Power cable SeaTalk cable assembly Flat moulded plugs both ends:

3 ft 3 in (1 m) long 9 ft 9 in (3 m) long 16 ft 3 in (5 m) long 29 ft 3 in (9 m)) long

Flat to male round connector:

12 in (0.3 m) long

Flat to female round connector:

12 in (0.3 m) long

Flat moulded plug one end only:

3 ft 3 in (1 m) long

SeaTalk auxiliary junction box

E63007 E63019 E63010 E63013 E63014

D331 E55031

81195 86066 86067

W145 W143 E55032 M92708 E55033

W144

D284 D285 D286 D287

D187

D188

D229 R55006

L755RC Plus L760 Plus L760RC Plus L1250 Plus L1250RC Plus

L755RC, L760, L760RC L1250, L1250RC

All All L755RC, L760RC, L1250RC

All L755RC, L760, L760RC L1250, L1250RC — —

All

— — — —

—

— All

— — — — —

— —

— — —

— — — L755RC, L760, L760RC L1250, L1250RC

—

All All All All

All

All —

2-6

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Plus Series Fishfinders

Table 2-1: Parts and Accessories

Item Part No. Supplied with: Option for:

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Unpacking and

Inspecting the

Components

cable assy

3 ft 3 in (1 m) 10 ft (3 m) 20 ft (6 m) 30 ft (10 m) 60 ft (20m)

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In Line Terminator

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Splitter Cable

NMEA OUT cable assy

4 ft 11 in (1.5m)

R55001 R55002 R55003 R55004 E55010 R58117 E55040

R55005

— — — — — All —

All

All All All All All — All

—

Transducer and Cables (See

81196

Transducers for Fishfinders Handbook

—— —

)

Chapter 2: Installation 2-7

2.3 Selecting the Equipment Location

Display Unit Mounting Location

The display unit can be mounted using the mounting bracket supplied, or

console mounted using the optional flush-mounting kit. The dimensions of the display units, including the bracket, are shown below in Figure 2-4, Figure 2-5 and Figure 2-6.

When planning the display installation, the following should be considered to ensure reliable and trouble free operation:

• Convenience: The contrast and colors seen on all LCD displays vary slightly with viewing angle; this is more noticeable on the left hand side. Power the unit and select a suitable mounting location prior to installing the display. The mounting location should be easily accessible to allow operation of the front panel controls.

• Access: There must be sufficient space behind the display to allow cable connections to the rear panel connectors, avoiding tight bends in the cable.

Location

Equipment

Selecting the

• Interference: The selected location should be far enough away from devices that may cause interference, such as motors, generators and radio transmitter/receivers (see the EMC guidelines earlier in this section).

• Magnetic compass: Mount the display unit at least 3 ft (1m) away from a magnetic compass.

• Cable runs: The display unit must be located near a DC power source. The power cable supplied is 4.9 ft (1.5m), but a longer cable can be used if required: refer to Section 2.4.

The maximum length of cable between a master display and the transducer unit should not normally exceed 30 ft (10 m). If you need to use a longer cable, refer to Section 2.4.

• Environment: Do not restrict airflow at the rear of the display unit;

the display incorporates Cold Cathode Florescent Lamps (CCFL), which have a reduced light output when the unit is very hot. Ventilation is required to prevent the unit from overheating.

The display should be protected from physical damage and excessive vibration. Mount the display in a protected area away from prolonged and direct exposure to rain and salt spray.

2-8

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Plus Series Fishfinders

Mounting Location

0.95 in

(24.3 mm)

Display Unit

10.51 in (267 mm)

6.89 in (175 mm)

0.4 in (10 mm)

7.3 in (185 mm)

8.1 in (205.2 mm)

8.8 in (223.6 mm)

GAIN

DISPLAY

VRM/EBL

MARKS

MULTI

RANGE

ALARMS

8.5 in (217 mm)

POWER

ENTER CLEAR MENU

1.42 in (36 mm)

4.53 in (115 mm)

6.9 in (176 mm)

1.3 in (33.5 mm)

2.1 in (53.5 mm)

cable cleareance

3.15 in

(80 mm)

Weight: 8.1 lbs (3.7 Kg)

6.3 in (160 mm) 1.28 in (32.5 mm)

8.85 in (225 mm)

Compass Safe Distance: 39 in (1 m)

Figure 2-4: 7” Color LCD Fishfinder Display Unit Dimensions

(L760 Plus and L760RC Plus)

D4847-4

Chapter 2: Installation 2-9

10.54 in (267.7 mm)

0.95 in

(24 mm)

6.89 in (175 mm)

0.95 in

(24 mm)

0.4 in

7.3 in (185 mm)

(9.5 mm)

8 in (204 mm)

Display Unit

Mounting Location

8.76 in (222.5 mm)

GAIN

DISPLAY

VRM/EBL

MARKS

MULTI

RANGE

ALARMS

POWER

ENTER CLEAR MENU

1.45 in (37 mm)

3.2 in (81 mm)

6.9 in (176 mm) cable cleareance

3.15 in

(80 mm)

3.15 in

(80 mm)

1.3 in (33.5 mm)

2.16 in

(55 mm)

Weight: 7.5 lbs (3.415 Kg)

6.3 in (160 mm)

8.85 in (225 mm)

Compass Safe Distance: 39 in (1 m)

Figure 2-5: 7” Monochrome LCD Fishfinder Display Unit Dimensions

(L755RC Plus)

0.4 in (9.5 mm)

8.5 in (216 mm)

D5071-2

Mounting Location

2-10

11.5 in (292 mm)

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Plus Series Fishfinders

3.82 in (97 mm)

Display Unit

11.4 in (289 mm)

12.3 in (313 mm)

6.38 in (162 mm) cable clearance

12.9 in (328 mm)

10.83 in (275 mm)

0.28 in

9.7 in (246 mm) 0.87 in (22.1 mm)

3.15 in

(80 mm)

1.65 in

(42 mm)

(7.1 mm)

3.94 in (100 mm)

Figure 2-6: 10.4” Color LCD Fishfinder Display Dimensions

7.88 in (200 mm) 1.7 in (43 mm)

11.26 in (286 mm)

(L1250 and L1250RC Plus)

Compass Safe Distance: 39 in (1 m)

D5066-3

Chapter 2: Installation 2-11

2.4 Cable Runs

Consider the following before installing the system cables:

• You need to attach the power cable and the transducer cable. Additional cables will be required if you are installing an integrated system.

• All cables should be adequately secured, protected from physical damage and protected from exposure to heat. Avoid running cables through bilges or doorways, or close to moving or hot objects.

• Acute bends must be avoided

• Where a cable passes through an exposed bulkhead or deckhead, a watertight feed-through should be used.

• Secure cables in place using tie-wraps or lacing twine. Coil any extra cable and tie it out of the way.

You need to run the following cables:

• Power/NMEA Input cable, supplied with the display unit. This has a connector plug at one end for connecting the display unit, and 7 wires at the other end for connecting the power supply and optional NMEA inputs (see Integrated Systems on page 2-18).

Cable Runs

• Transducer cable, supplied with the transducer. This 30 ft (10 m) cable has a connector plug (with an outer nut that you must attach) at one end for the display unit or extension cable.

• SeaTalk cable, optional, with SeaTalk connector(s) at one or both ends.

• HSB cable, optional.

• NMEA Output cable, optional, with an NMEA OUT connector at one end only.

Power Cable

The systems rated from 10.7 V to 32 V.

A 5 ft (1.5 m) power cable is supplied for connecting the ship’s DC power to the display unit. The power cable may be extended by up to 60 ft (20 m) using

a wire gauge of AWG 12 (3.5 mm

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Plus Series Fishfinder is intended for use on ships’ DC power

Transducer Cable

A 30 ft (10m) cable is supplied with the transducer. The transducer cable may be extended up to a maximum of 60 ft (20 m) using optional extension cables. For details, see document number 81196, Transducers for Fishfinders

Owner’s Handbook.

) or greater.

2-12

2.5 Mounting the Display Unit

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Plus Series Fishfinders

The

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Plus Series LCD display unit is waterproof to CFR46 and can be

installed either above or below deck. The display unit can be mounted using

Mounting the

Display Unit

the mounting bracket supplied, or console mounted using the optional flushmounting kit (see Section 2.2).

Mounting Bracket

The display unit can be mounted on a dash, chart table, bulkhead, or deckhead.

D4848-1

Figure 2-7: LCD Display Mounting

1. Loosen the knobs and remove the mounting bracket from the display unit.

2. Mark the locations of the mounting bracket screw holes on the mounting surface.

3. Use the screws supplied to attach the mounting bracket at the marked locations.

4. Attach the display unit to the mounting bracket, adjust the display angle, and tighten the knobs.

Chapter 2: Installation 2-13

Console Mounting

The display unit can be console mounted if required, using the optional flushmounting kit (Raymarine part number M92708 for 7” Fishfinder displays and E55033 for 10.4” Fishfinder displays).

CAUTION:

Make sure there are no hidden electrical wires or other items behind the location before proceeding. Make sure there is sufficient rear access for mounting and cabling.

1. Check the selected location for the unit. A clear, flat area at least 9 in (230 mm) wide by 8¼ in (210 mm) high, with at least 6.9 in (176 mm) of clearance behind the panel, is required.

2. Unpack the flush-mounting kit.

3. Using the supplied template, trace out the display unit opening.

4. Drill a ½ in (12.7 mm) pilot hole in each corner of the cut-out area.

5. Using a suitable saw, cut along the inside edge of the cut-out line.

Display Unit

Mounting the

6. Remove the mounting bracket knobs and bracket from the display unit. Make sure that the unit fits in the cut-out area.

If the optional screw fitting is required, drill four 3/16 in (5 mm) holes as indicated on the template. Screw the studs into the holes provided at the rear of the display.

7. Connect the DC power cable, transducer cable, and any other accessory cables to the display. Avoid tight bends in the cables.

8. Place the gasket on the unit and slide the unit into the panel cut-out.

9. Use the flush-mounting kit to secure the unit to the console.

Alternatively, place a spacer over each of the four studs and secure with the thumb nuts.

2-14

2.6 System Connections

Grounding the System

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Plus Series Fishfinders

Connections

It is important that an effective RF ground is connected to the system. You

System

must ground the display by connecting the drain wire (shield) of the Power/ NMEA Input cable to the ship’s RF ground; a single ground point should be used for all equipment.

If you need to extend the wire, the extension wire should be an 8 mm braid or AWG 10 (6.0 mm

) multi-stranded cable.

If your vessel does not have an RF system, connect the drain wire to the negative battery terminal.

DC Power Connection

The systems rated from 10.7 V to 32 V.

The power connection to the display should be made at either the output of the battery isolator switch, or at a DC power distribution panel. Raymarine recommends that power is fed directly to the display via its own dedicated cable system and MUST be protected by a thermal circuit breaker or fuse, installed close to the power connection.

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Plus Series Fishfinder is intended for use on ships’ DC power

Use a 6 amp fuse for 12V systems or 4 amp fuse for 24/32V systems.

The DC system should be either:

• Negative grounded, with the negative battery terminal connected to the ships ground.

• Floating, with neither battery terminal connected to the ships ground.

CAUTION:

This system is not intended for use on “positive” ground vessels.

The power cable Ground (earth) connections must be connected to the ship’s ground as described above.

Power for External Equipment

External equipment cannot be powered from the display’s SeaTalk interface.

It must be powered from the ship’s supply or via a SeaTalk bus.

Refer to Section 2.7 for further details.

Chapter 2: Installation 2-15

Display Unit Connection

The rear of the

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Plus Series LCD display provides the following

connection sockets:

• Transducer connection.

• HSB, in/out connector for connecting to another

hsb

Plus Series display

(such as a chartplotter, radar, or second fishfinder display).

• SeaTalk, for SeaTalk data input and output and connecting to another

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Plus Series display (such as a chartplotter, radar, or second fishfinder display).

• NMEA Output, for NMEA data output in an integrated system.

• Power/NMEA Input, for 12 V, 24 V or 32 V DC power connection, two NMEA 0183 inputs and one RF ground (screen) connection.

TRANSDUCER

SeaTalk

GRY

POWER/NMEA

HSB

NMEA OUT

Connection

Display Unit

D4849-2

Figure 2-8: Fishfinder Display Connector Panel

The following sections detail the display unit connectors used when installing

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a single

Plus Series LCD Display. The remaining connector details are

provided in Section 2.7.

Transducer Connection (master displays)

The transducer cable connector (and Y-shaped connector, if supplied) has a nut that has been removed to aid installation. To allow you to complete the installation without cutting the cable, ensure that any holes you drill are large enough to accept the connector, with the nut removed (approximately 13/16" or 21 mm).

Before attaching the transducer cable, you will need to attach the connector nut and split ring. These items, plus a wedge tool, are included in the transducer packaging.

The transducer cable is attached to the 7 pin male connector marked TRANSDUCER on the rear of the display unit. How you connect the cable to the display unit depends on the type of transducer you have installed:

Connection

2-16

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Plus Series Fishfinders

• Combined depth/speed/temp transducers have a 7 pin female connector. Attach the transducer cable connector directly to the display unit.

• Combined speed/temperature transducers have a 3 pin female connector that requires the use of an additional Y-shaped cable (Raymarine part num-

Display Unit

ber E66022) to attach to the 7 pin connector on the display. This Y-cable is included with your speed/temperature transducer. Attach the 7 pin female connector on the Y-cable to the display unit then attach the transducer cable to the 3 pin male connector on the Y-cable.

• Depth-only transducers have a 7 pin female connector. Attach the transducer cable connector directly to the display unit.

If being installed in conjunction with a speed/temperature transducer, attach the 7 pin female connector on theY-cable to the display then attach the transducer cable to the 7 pin male connector on the Y-cable.

Note: If your system requires both a Y-cable and a transducer extension cable, ensure that you connect the Y-cable to the display unit and the extension cable to the transducer.

The connector pins are shown in the following diagram, together with the connections and wire colors; this is information is provided as an aid to fault diagnosis.

CAUTION:

Do not cut the transducer cable or remove the connector. Do not try to shorten or splice the cable. If the cable is cut, it cannot be repaired. Cutting the cable will also void the warranty.

Pin No. Function Color Pin No. Function Color

1 Speed Red 5 Speed/Temp Ground Brown

D4850-2

2TempWhite6+ Depth Blue

3 Shield Drain 7 - Depth Black

4SenseGreen

Figure 2-9: Fishfinder Transducer Connector

Chapter 2: Installation 2-17

Power and NMEA Input Connection

The DC power and NMEA input should be connected at the rear Power/ NMEA seven-pin connector. The connector (viewed from the outside) and pin functions are shown in the following diagram and table. The NMEA Input is detailed in Section 2.7.

Connection

Display Unit

Pin No. Function Color

1 Channel 1 NMEA data input (+ve) Orange

2 Channel 1 NMEA return (-ve) Yellow

3 Battery negative Black

4 Shield (drain wire) No insulation

5 Battery positive (12/24/32 V systems) Red

6 Channel 2 NMEA data input (+ve) Green

7 Channel 2 NMEA return (-ve) Blue

Figure 2-10: Power and NMEA Connector

D3231-2

Power Connection

CAUTION:

If the power connections are accidentally reversed the system will not work. Use a multimeter to ensure that the input power leads are connected for correct polarity. Switch off the display unit before you remove the power cord.

The RED wire must be connected to the feed from the positive (+) battery terminal and the BLACK wire to the feed from the negative (–) battery terminal. The shielded wire (screen) should be connected to the ship’s RF ground as previously described in Grounding the System on page 2-14.Any unused wires should be insulated and taped back.

2-18

EMC Conformance

Always check the installation before going to sea to make sure that it is not

EMC Conformance

affected by radio transmissions, engine starting, etc.

2.7 Integrated Systems

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Plus Series Fishfinders

The

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Plus Series displays can be linked to other equipment to transfer data

as follows:

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• A second display, either CRT or LCD, can be connected via

(and SeaTalk) to repeat fishfinder, chart and/or radar information at a remote location.

Note: If you have an integrated system with a Pathfinder Plus radar master display that includes MARPA as a primary function, MARPA functionality is available on the LCD repeater display.

• Data can be received via SeaTalk or NMEA, some of which will increase the functionality of the display. Other data can be viewed on the display.

• Data can be transmitted via SeaTalk and NMEA to enhance other equipment.

• Some incoming data can be converted across the communication link and re-transmitted.

Power for External Equipment

External equipment cannot be powered from the display’s SeaTalk interface. It must be powered from the ship’s supply or via a SeaTalk bus.

Ensure correct polarity of the SeaTalk connection.

For systems where the ship’s power source is 24 V only, you may need to install a 24 V to 12 V DC converter. This is only necessary if the products being connected to the display are:

• SeaTalk compatible (for example, compass, GPS and instruments), and there is no existing SeaTalk bus

• NMEA compatible, but operate only from 12 V (for example, compass, GPS and some navigators)

The DC-DC converter must conform to the following specification:

Table 2-2: DC-DC Converter for External Equipment

Input 21 to 32 V DC

Output 13.6 V DC, isolated

Load Continuous current rating, in excess of required load

Chapter 2: Installation 2-19

High Speed Bus (

The High Speed Bus ( master and repeater displays. With an data available can be controlled and displayed by any unit.

Master functionality is provided by the display with the appropriate transducer/scanner connected as defined in Table 2-3 . You can have a master fishfinder and a master radar in the same system. Data on master units are displayed on all connected repeater units.

Note: If the master display is an L1250 Plus or L1250RC Plus, repeater displays can take advantage of these units’ extended power (1000 watts vs. 600 watts RMS) and depth range (5000 feet vs. 3000 feet).

Up to ten functionalities. For example, you can connect your to a remote Plus Chartplotter to provide fishfinder, chart, and radar functionality on all three displays. You can display some combinations, such as fishfinder/chart or radar/chart, in half-screen windows.

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)

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) provides extremely rapid transfer of data between

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and a SeaTalk connection, most

Plus Series displays can be combined to create a variety of

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Series Plus Fishfinder

Series Pathfinder Plus Radar and then to a remote

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(hsb2)

High Speed Bus

Series

Note: Fishfinder STC cannot be adjusted on a repeater display, nor can depth offset, speed and temperature calibration be set. Frequency can be selected on either master or repeater, but the same frequency is used on all displays.

The

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Table 2-3:

Master Function Plus Series Display Type Transducer/Scanner

Radar R70, RL70, RL70C, RL70RC, RL70CRC,

Chart RC520, RC530, RC631

Fishfinder L755RC, L760, L760RC, L1250,

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Plus Series Master Displays

R80, RL80, RL80C, RL80RC, RL80CRC

RL70RC, RL70CRC, RL80RC, RL80CRC, L755RC, L760RC, L1250RC

L1250RC

Any Pathfinder Series Scanner

Display includes a two-slot chart cartridge

Fishfinder transducer

Note: Earlier HSB (non-Plus) Display units with can be upgraded to provide

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Plus compatibility. Please contact your authorized Raymarine dealer for

details.

2-20

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Plus Series Fishfinders

L1250 PLUS Fishfinder

RL80C PLUS Radar

L760 PLUS Fishfinder

RC530 PLUS Chartplotter

High Speed Bus

(hsb2)

HSB

TRANSDUCER

GRY

NMEA OUT

hsb Inline Terminator

HSB cable HSB cable HSB cable

Power Power

HSB

TRANSDUCER

POWER/NMEA

SeaTalk

Figure 2-11: Fishfinder Integrated System with Multiple

GRY

POWER/NMEA

SeaTalk

NMEA OUT

hsb Splitter

NMEA OUT

HSB

POWER/NMEA

Power

TRANSDUCER

GRY

SeaTalk

hsb Inline Terminator

hsb

NMEA OUT

HSB

Power

Plus Connections

SeaTalk

POWER/NMEA

TRANSDUCER

GRY

D5655-3

Upgrading Existing HSB Series Displays

Earlier HSB (non-PLUS) display units can be upgraded to provide compatibility. Two types of upgrades are available:

hsb

Plus

1. A full hardware and software upgrade (Plus upgrade) provides full com-

patibility with the

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system. This configuration supports up to eight true Plus (or Plus upgraded) displays with a cable limit of 60 meters, or up to ten true Plus (or Plus upgraded) displays at a maximum of 40 meters cable length.

2. A software-only upgrade enables the display to be used with a Plus (or Plus upgraded) unit in the

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system. However, like the old HSB (non-Plus) system, this configuration only supports two displays: two software-only upgraded units, or one softwareonly upgraded with one true Plus (or Plus upgraded) display.

Connecting

Figure 2-11 illustrates how to inter-connect various When connecting your

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Plus Series Displays

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Plus Series displays, there are several important

hsb

Plus Series Displays.

points to keep in mind:

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1. If more than two

hsb

Splitter Cable, Raymarine part number E55040.

displays at the end of the chain must be terminated using the Inline

use an

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Terminator plug (Raymarine part number R58117) included with your

Plus Series displays are to be connected, you must

hsb

Plus Series display unit.

Chapter 2: Installation 2-21

3. The total cable length for an

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network containing the maximum 10 display units (both Plus and Plus upgrades) must not exceed 40 meters. A network comprised of only 8 displays can extend up to 60 meters.

4. Earlier HSB (non-Plus) Display units can be enhanced with a hardware and software upgrade to provide full

hsb

Plus functionality.

5. Earlier non-Plus displays can also be outfitted with a software-only upgrade, which enables

hsb

compatibility. However, these software-only upgraded displays are not true Plus units. They must not use the Inline Terminator plug because they are already terminated internally. Like the old HSB system, this configuration only supports two displays: two software-only upgraded units, or one software-only upgraded with one true Plus (or Plus upgraded) display.

An In/Out connector cable is provided for connecting to another

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Plus

Series display.

Note: The HSB cables have ferrite clamps attached at each end to ensure EMC conformance. The cables are available in lengths of 1, 3, 6, 10 and 20 m.

HSB connector

HSB connector Pin Pin name Function

1 CGND Screen

2 HSVB_POS SeaTalk HSB Pin 1, screen Pin 3, blue

Pin 2, white

3 HSVB_NEG SeaTalk HSB

(hsb2)

High Speed Bus

Rear of Display Unit

2 3

HSB

D4253-3

Figure 2-12: HSB Connector

The display unit is supplied with a blanking plug. This should be attached to the HSB cable port if the HSB port is not used. If the display unit is installed in an exposed position, seal the blanking plate with silicon compound.

2-22

SeaTalk and NMEA In

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Plus Series Fishfinders

The

SeaTalk and NMEA

primary data is described below:

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Plus Series display can receive a comprehensive range of data. The

Table 2-4: Function of SeaTalk and NMEA Data

Data Primary Uses Suggested Source

Heading Chart: modes/ vectors Compass connected to SeaTalk bus,

NMEA Compass

Position Chart: own vessel position

MOB (also requires speed and HD G data)

Waypoint Chart: Waypoint and route transfer Existing GPS Navigator via SeaTalk bus

SeaTalk GPS connected via Auxiliary JB Existing GPS Navigator via SeaTalk bus Existing GPS (or Loran-C) navigator with NMEA output

Existing GPS (or Loran-C) navigator with NMEA output

Heading data should ideally contain both magnetic and true heading. If only one is available then a source of magnetic variation should be connected.

Radars and chartplotters can exchange their cursors via SeaTalk. Locked heading should be used for Course Up if available via SeaTalk. Other data connected via a SeaTalk bus or via NMEA is generally displayed in data boxes, e.g., depth, apparent wind angle and speed, time.

Note: The Fishfinder uses its own depth data, rather than any other depth data on SeaTalk. If there is no other depth data on SeaTalk, Fishfinder depth is transmitted. If speed and temperature data are available on SeaTalk the Fishfinder uses this data; if this data is not on SeaTalk from other instruments, it is transmitted by the Fishfinder.

For details of received data refer to the table in Appendix D: SeaTalk and NMEA Data. Examples of SeaTalk and NMEA systems are shown in Figure 2-13 and Figure 2-14.

Chapter 2: Installation 2-23

GPS

SeaTalk

SeaTalk SeaTalk

HSB HSB

12/24V Supply

Scanner

12/24V Supply

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Series Radarhsb2 Series Chartplotterhsb2 Series Fishfinder

SeaTalk and NMEA

SeaTalk

Course Computer

SeaTalk

Distribution Panel

12/24V

Supply

Transducer

SeaTalk

12/24V Supply

Figure 2-13: Integrated System with Repeater Displays and SeaTalk Instruments

12/24V

Supply

D5578-2

2-24

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Plus Series Fishfinders

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Series Fishfinder Display

Series Repeater Display

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SeaTalk and NMEA

Transducer

HSB

Compass

GPS

NMEA

SeaTalk

NMEA Out

Non SeaTalk

Pilot

12/24V Supply

Distribution

Panel

12V Supply

D4868-3

Figure 2-14: Integrated System with Repeater Display and NMEA Instruments

SeaTalk

The SeaTalk standard was originally developed by Autohelm (part of the Raymarine group), and allows compatible instruments to be connected by a single cable carrying power and data in/out. This means that additional instruments and functions can be added to a SeaTalk system, simply by plugging them into the network.

SeaTalk is a precise, high-speed, bi-directional protocol which is flexible enough to adapt to any number of instruments, without a central processor. SeaTalk equipment can also communicate with non-SeaTalk equipment via the NMEA standard.

SeaTalk Connection

SeaTalk data, if present, is the primary source for all navigational data except heading.

This connection is necessary for full functionality between displays.

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Plus Series

Chapter 2: Installation 2-25

The SeaTalk input/output should be connected at the rear SeaTalk 3-pin connector. This appears as follows, when viewed from outside:

SeaTalk In/Out

1. Red (No internal connection)

2. Screen (0V)

3. Yellow (Data)

D3232-4

Figure 2-15: SeaTalk Connector

Table 2-5: Sea Talk Connections

Pin No. Function Color

1+12 VRed

20 V Shield

3 Data Yellow

Note:

1. The display does not supply 12 V via the SeaTalk connector, nor does the SeaTalk connector require 12 V to operate. 12 V is required for other SeaTalk units (except where SeaTalk is connected only between two

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displays).

2. If you are connecting an active compass to the fishfinder, the NMEA input has priority. You should, therefore, use an NMEA input channel (see Power and NMEA Input Connection) rather than the SeaTalk interface, unless the compass only has a SeaTalk output.

SeaTalk and NMEA

To connect the display unit to the SeaTalk bus, connect a standard SeaTalk cable between the SeaTalk connector on the rear of the display and a SeaTalk instrument or the SeaTalk bus.

Standard SeaTalk cables are available in a range of lengths (part numbers D284 to D287), and cables for connecting to SeaTalk units with round connectors are also available (part numbers D187 or D188), see Section 2.2 for further details.

NMEA 0183

The NMEA 0183 Data Interface Standard was developed by the National Marine Electronics Association of America. It is an international standard that enables equipment from many different manufacturers to be connected together and to share information.

2-26

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Plus Series Fishfinders

The information is passed in “sentences”, each of which has a three-letter sentence identifier. When you check to see if one item will “talk” to another, make sure that the two items both use the same sentence identifiers. For

Auxiliary Junction

Using the SeaTalk

example: VTG carries Course and Speed Over Ground data; GLL carries latitude and longitude; DBT carries water depth; MWV carries relative wind

Box

angle and wind speed data.

The NMEA 0183 standard carries similar information to SeaTalk. However, it has the important difference that one cable will only carry information in one direction. For this reason NMEA 0183 is generally used to connect a data receiver and a transmitter together: for example, a compass sensor transmitting heading to a radar, or a GPS sensor (or Chartplotter) transmitting position and navigation data to a radar.

NMEA Input Connection

The two NMEA/Power input connectors are normally used for non-SeaTalk Compass (heading) data or GPS. It can also be used for additional navigation data (if not provided via SeaTalk).

Connect the input(s) to the orange and yellow wires (Channel 1) and/or the green and blue wires (Channel 2). Refer to Power and NMEA Input Connection on page 2-17 for further details.

For example, to connect a Raymarine Heading Sensor to the NMEA Channel 1 input, connect the cables and power supply using a suitable connector block, as shown in the diagram below. If installed, it may be convenient to connect the power to the SeaTalk auxiliary junction box described in the following section.

Red

Yellow

Black

+12 V

+ NMEA Data (orange)

-- NMEA Data (yellow)

D3604-1

Figure 2-16: NMEA Input Connection

Using the SeaTalk Auxiliary Junction Box

A junction box is used to connect the SeaTalk system to the display unit. This junction box enables the SeaTalk bus, power and GPS to be connected.

hsb

Plus Series

Chapter 2: Installation 2-27

If power is not already available (via another SeaTalk instrument), the junction box can be used to apply power to the SeaTalk bus for other applications. The junction box may also be used for other purposes, e.g., supplying power to a flux gate compass and routing the compass data to the

hsb

Plus Series display NMEA In connection, or alternatively, for connecting

a NMEA GPS system.

The junction box includes:

Box

• SeaTalk cable and connector to attach to display unit

• Power cable to connect to 12 V power (if required)

• Input connections to connect SeaTalk cable from external equipment

• Spare connections for another instrument

CAUTION:

Ensure correct polarity of the 12 V supply before applying SeaTalk power. Use a multimeter to check the connections.

Figure 2-17 shows how to connect the junction box; Appendix B provides connection details for specific Raymarine, Apelco and Autohelm GPS and Beacon Receiver systems.

To Display Unit SeaTalk Socket

12V Power Supply

To GPS Power Out: 1 & 2 Power In: 1 & 3

Spare Input

Using the SeaTalk

Auxiliary Junction

Fused

Figure 2-17: Using the Auxiliary Junction Box

Cable

SeaTalk

Power

GPS

Core

Black (screen) Red Yellow Black (screen) Red Black (screen) Red Yellow

Terminal

1 2 3 1 2 1 2 3

Function

0V +12v SeaTalk 0V +12V 0V +12V SeaTalk

D4291-1

2-28

Data Output

Data is transmitted in SeaTalk and NMEA formats as detailed in Appendix D and can be used to enhance other equipment as required.

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Plus Series Fishfinders

Data Output

The SeaTalk input/output connection is detailed in SeaTalk Connection on page 2-24.

The NMEA output connector is a 4-pin connector as illustrated below. The

1.5 m NMEA OUT cable has a ferrite clamp attached to ensure EMC

conformance.

NMEA OUT connector

Pin 2, white Pin 5, screen

Rear of display

Pin 3, blue Pin 4, not connected

NMEA out

NMEA OUT connector Pin Pin name Function

2 NMEA_GND NMEA ground

3 NMEA_SIG NMEA data output

4 N/C N/C

5 CGND Screen

*Pin 1 does not exist on this connector

D4254-2

Figure 2-18: NMEA Output Connector

Data Conversion

The communications links as follows:

This enables data received by the display to be passed to other instruments. For example, if you have a master and a repeater display, you only need to connect NMEA In to the master display, which will pass the data to the repeater via SeaTalk.

You can prevent NMEA heading data being bridged onto the SeaTalk bus refer to Bridge NMEA Heading on page 7-9.

Note: To transfer NMEA data, or to convert the data, the display must be powered On.

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Plus Series displays convert some information across the

NMEA In to NMEA Out and SeaTalk SeaTalk to NMEA Out

Chapter 2: Installation 2-29

2.8 Integrated System Checks

Chart Display

When you have connected your display unit to the required equipment ensure that position data is available at the display via NMEA or SeaTalk.

To confirm your chartplotter is operating correctly, perform the following checks:

1. Without a chart card installed, select the Chart display mode and select a suitable range scale. Verify that the world map is visible. Use the trackpad to check cursor movement and normal scrolling action.

2. To ensure that the display is responding to position data: Press FIND SHIP, check the cursor is fixed on the vessel symbol which is cor- rectly positioned at the center of the chart display.

3. Insert a chart cartridge for the area of your vessel. Use the RANGE key to zoom-in to check that the chart data is being dis- played.

Received Data

If either SeaTalk or NMEA In is connected, verify that the expected data is displayed.

1. Press DISPLAY and select the NAV DATA WINDOW ON. Check that the expected data is displayed.

2. If heading data is connected, select Chart mode and check it is displayed in the heading data box, or select Radar mode and check heading is displayed in the Status Bar.

Checks

Integrated System

Transmitted Data

If SeaTalk or NMEA Out is being transmitted to other equipment, check that the data is being received correctly.

An NMEA Out connector is used to transmit navigation data. The NMEA Output cable should be connected to the upper, left connector on the rear of the display unit.

Note: The NMEA Output cable has a ferrite clamp attached to ensure EMC conformance.

Transmitted Data

2-30

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Plus Series Fishfinders

Chapter 3: Getting Started & Adjusting the Display 3-1

Chapter 3: Getting Started & Adjusting the

Display

3.1 Introduction

This chapter provides information, instructions to get you started using the

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Plus Series Fishfinder displays. It will help you to become familiar with the display and the functions of the controls before you start using the unit. More detailed information on operating the Fishfinder display is provided in

Chapter 4. Chartplotter operating details are given in Chapter 5 and Chapter 6.

Conventions Used

Throughout this handbook, the dedicated (labelled) keys are shown in bold capitals; for example, MENU. The soft key functions, menu names and options are shown in normal capitals; for example, SCREEN.

Introduction

Operating procedures, which may consist of a single key-press or a sequence of numbered steps, are indicated by a ➤ symbol in the margin. When the procedure requires you to press a soft key, the soft key icon is shown in the margin.

Simulator

The display unit includes a simulator function, that allows you to practice operating your Fishfinder or Chartplotter (Raychart models only) without data from the transducer or GPS system. You will need to use the set up options to switch the display to simulator mode, as described in Section 3.2.

You need to connect the display to a 12V or 24V DC power supply, connecting the red wire from the power lead to positive (+) and the black wire to negative (-). See Chapter 2 for full details.

The following section, Section 3.2, includes instructions to view simulated fishfinder and chart images.

3-2

3.2 Switching the Display On and Off

The factory default power-up mode is full-screen fishfinder. Once you have used the display unit it powers-up in the last used mode. The following sections describe the power-up sequence in fishfinder and chart modes, how to adjust the lighting and color controls, and how to select simulator mode.

hsb

Plus Series Fishfinders

Display On and Off

Switching the

➤ To switch the display on in fishfinder mode:

Press and hold the POWER key until the unit beeps. The keys light up and after a few moments the display shows the fishfinder screen.

AUTO GCRZFH

ZOOMFREQUENCY

  

50kHz

BTM.LOCK A-SCOPE

100



Figure 3-1: Switching On in Fishfinder Mode

You can adjust the display brightness and contrast/colors, as described later in this chapter.

Setting the Fishfinder as Master/Repeater

You need to set your display as a fishfinder master or repeater. If the display is connected to a sonar transducer it is a master display. If your display is part of an integrated system, connected to another fishfinder master it is a repeater display. Fishfinder functionality is the same on both master and repeater displays, with the following limitations:

• Automatic Gain cannot be adjusted on the repeater display, but Manual

Gain can be.

• STC cannot be adjusted on the repeater display.

• Depth offset, speed and temperature calibration (see Section 7.4) cannot be

set on the repeater display.

• Frequency can be selected on either master or repeater display, but the

same frequency is used on both displays.

Chapter 3: Getting Started & Adjusting the Display 3-3

• Range adjustment can be made on either master or repeater display, but any changes made are used on both displays.

• Simulator mode is repeated from the master, but cannot be selected on the repeater display.

AUTO G RZ

50kHz

ZOOMFREQUENCY

BTM.LOCK A-SCOPE

100

Figure 3-2: Typical Fishfinder Display at Switch On

➤ To set the fishfinder display as a master or repeater:

Switching the

Display On and Off

D5008-2

1. Press the MENU key, then press the SONAR SET UP soft key. The sonar set up pop-up window is displayed.

2. Use the trackpad to move the selection bar over the option SONAR HSB MODE. The HSB mode soft keys are displayed.

3. Press the appropriate soft key to set the display as a MASTER or REPEATER.

Press ENTER twice to return to the default display.

3-4

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Plus Series Fishfinders

Chart Mode (Raychart Models only)

If the display was last used in chart mode before being powered off, it will return to chart mode the next time it is switched on.

➤ To switch the display on in chartplotter mode, press and hold the POWER key

until the unit beeps. The keys light up, the Raychart graphic is displayed,

Display On and Off

Switching the

followed by the caution:

CAUTION:

Raychart chart displays are based on cartographic data that C-MAP believes to be accurate. However, you should not rely on these displays as your primary source of navigation. Rather, your Raychart should be used only as a backup to official government charts and traditional methods of navigation.

When you have read and understood the caution, press the CONTINUE soft key. The chart is displayed. If this is the first time the chartplotter has been turned on, and no chart card is installed, the display shows the small-scale world map and the default soft keys. Otherwise, the display shows the selected chart area and any data that were displayed when the display was last used.

Until unit beeps

Figure 3-3: Switch On - Chart Mode

Switch Off

CAUTION:

To provide protection against the damaging effects of UV light, it is advisable to replace the sun cover provided when the color LCD display is not in use. A reminder is displayed when you switch off the color LCD display.

D4277-3

Chapter 3: Getting Started & Adjusting the Display 3-5

➤ To switch the display unit off, press and hold the POWER key for three

seconds. A countdown timer is displayed as shown below:

GAIN

DISPLAY

VRM/EBL

MARKS

MULTI

Countdown timer: number of seconds to power off

POWER OFF IN

ALARMS

RANGE

Simulator Mode

Figure 3-4: Switch Off

When the counter reaches zero a beep sounds, and the display unit switches off. Release the POWER key.

Note: Switch the display unit off before you remove either the power or transducer cords.

Simulator Mode

When simulator mode is on a simulator database box is displayed.

When the display is switched off then on again, simulator mode is maintained. It is recommended that you select the System Set Up Menu and switch off simulator mode when you have finished.

➤ To view simulated image:

SYSTEM

SET UP¬

1. Press MENU followed by either: the SYSTEM SET UP soft key for simulated data or the SONAR SET UP soft key for a simulated fishfinder image. The set up menu pop-up is displayed.

SECONDS

POWER

ENTER CLEAR MENU

D3599-2

SONAR

SET UP¬

2. Use the trackpad to move the selection bar over the option SIMULATOR/ SONAR SIMULATOR. The simulator soft keys are displayed.

3. In the system set up menu, press DATA to view the chart display with simulated position. In the sonar set up menu, press the ON soft key to switch on the sonar simulator.

4. Press ENTER twice to return to the default display.

Note: Any waypoints placed on the chartplotter in simulator mode are retained in the database list and are available for use in routes.

3-6

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Plus Series Fishfinders

Changing the Lighting & Contrast (Monochrome LCD)

On the L755RC Plus, you can change the level of backlighting and contrast for the screen and keys. The key lighting is set the same as the screen lighting, except that it remains switched on at its lowest level even when the screen lighting is turned off, so that you can always find the keys.

(Monochrome LCD)

Lighting & Contrast

Changing the

➤ To change the lighting and contrast:

1. Press the MULTI key to display the soft key controls:

The last-used soft key is highlighted in inverse video (white text on a black background).

37%70%

50%

CONTRAST

POWER

AUTO LO HI

LIGHT CONTRAST

WHT LINE

OFF ON

D4895-2

2. Press the LIGHT soft key if it is not already highlighted.

3. The LIGHT soft key toggles lighting ON/OFF.

4. Use the trackpad (up or down) to increase or decrease the setting. You can press and hold the trackpad to change the setting more rapidly. The lighting level is adjusted as you change the setting.

5. Press the CONTRAST soft key. Adjust the setting in the same way as for the lighting. There are 64 different contrast levels.

6. Press ENTER to return to the default screen, with the new lighting and con- trast levels retained, or press CLEAR to discard the changes and return to the default screen.

If lights are left ON when you switch off the display, the next time the display is switched on, the lights will be ON, but at the default setting of 42%. The new contrast level is retained until you reset it, unless you set the control very low or very high; in this case, the contrast will be restored as follows:

Contrast set < 30% restored to 30% Contrast set > 70% restored to 70%

Changing the Brightness & Color Settings (Color LCD)

The MULTI key on the color LCD Fishfinder provides controls to set up the display colors and brightness. You can choose the background color and the color threshold; color threshold lets you determine which echoes are displayed, by selecting the minimum color strength the fishfinder uses. You can also select the color set, for a bold or soft color palette. The brightness of the screen can be adjusted over a wide range, suitable for viewing in daylight (high brightness level) or at night (low brightness level).

Chapter 3: Getting Started & Adjusting the Display 3-7

The key lighting is automatically adjusted as you alter the screen lighting, so that you can always find the keys. If you set the backlight to a high level, the key lighting is dimmed; if you set the backlight to a low level, the key lighting level is increased.

Adjusting the Brightness

➤ To change the screen brightness:

1. Press the MULTI key to display the soft key controls:

70%

Changing the

Brightness & Color

Settings (Color LCD)

MULTI

POWER

AUTO LO HI

LIGHT

COLOR

SETTINGS

WHT LINE

OFF ON

D4896-2

2. The LIGHT soft key indicates the brightness level, use the trackpad (up or down) to increase or decrease the setting. You can press and hold the trackpad to change the setting more rapidly. The brightness level is adjusted as you change the setting.

3. Press ENTER to return to the default screen, with the new brightness level.

➤ To set the screen brightness to 100%:

Press and hold the MULTI key for one second. The brightness is increased to 100%.

The brightness level is retained when you switch off the display.

Note: During night-time use, the brightness may be set very low, when subsequently operated during the day it may not be apparent that the display is on; press MULTI then use the trackpad to increase brightness. Alternatively, press and hold MULTI for one second to set the brightness to 100%.

Selecting the Background Color

Five colors are available for the fishfinder display background – black, dark gray, light gray, white and dark blue. The color you select is used on all the fishfinder windows (scrolling bottom, Zoom, Bottom Lock and A-Scope).

You will probably find that you need to change the background color in different light conditions. For example, a white background is probably easiest to see in bright sunlight, but a black background may be preferable at night.

Settings (Color LCD)

Brightness & Color

3-8

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Plus Series Fishfinders

➤ To change the background color:

MULTI

COLOR

SETTINGS

B'GROUND

COLOR

Changing the

1. Press the MULTI key to display the soft key controls, then press COLOR SET- TINGS.

2. Press the BGROUND COLOR soft key. The background color soft keys are displayed below a pallet of available colors. The selected color is highlighted.

3. Press the left or right BACKGROUND COLOR soft key until the required color is highlighted. The fishfinder display changes, so you can see the effect as you change the background color.

4. Press ENTER or CLEAR twice to return to the MULTI soft keys.

Selecting the Color Threshold

You use the color threshold control to determine the minimum echo strength that is displayed. Each range of echo strengths is displayed in a color as shown in the color bar; you select the minimum strength that is displayed by blanking echo colors below the required minimum.

MULTI

COLOR

SETTINGS

COLOR

THRESH

If you blank a color, the corresponding echoes are displayed in the background color. You can remove up to six colors, but you cannot remove the strongest color.

The color threshold you select is used on all the fishfinder windows (scrolling bottom, Zoom, Bottom Lock and A-Scope).

➤ To change the color threshold:

1. Press the MULTI key to display the soft key controls, then press COLOR SET- TINGS.

2. Press the COLOR THRESH soft key. The color threshold soft keys are displayed below color indicator showing the available echo colors. The weakest color is at the bottom of the indicator, the strongest color at the top; you can remove colors from the bottom up.

3. Press the left or right ADJUST COLOR THRESHOLD soft key to change the color threshold. Pressing the left key removes out the next color up, it increases the minimum strength displayed. Pressing the right key displays the next color down, it decreases the minimum strength displayed.

4. Press ENTER or CLEAR twice to return to the MULTI soft keys.

Chapter 3: Getting Started & Adjusting the Display 3-9

Selecting the Color Set

➤ To change the color palette:

MULTI

COLOR

SETTINGS

1. Press the MULTI key to display the soft key controls, then press COLOR SET- TINGS.

2. Press the COLOR SET soft key; this toggles between color set 1, bolder colors and color set 2, softer colors.

3. Press ENTER or CLEAR twice to return to the default screen.

3.3 Controlling the Display

You control the display using the cursor and control keys. You start all operations from the default screen, that is the default soft keys are displayed:

Fishfinder

Chart

When you have completed an action using the soft keys, press ENTER or CLEAR to return to the default screen; you may need to press ENTER or CLEAR several times to back-track through the soft key hierarchy.

Note: If you have set up your system so that the default soft keys are not displayed all the time, press any soft key to display the labels.

The remainder of this section describes how to select the mode of operation and switch half-screen windows on/off. The following sections describe how to set up the display for the Fishfinder and for the Chart (for fishfinder displays with chartplotter functionality).

ZOOM BTM.LOCKFREQUENCY

GOTO SCREENROUTE FIND SHIP

A-SCOPE

D5010-1

D4160-1

Display

Controlling the

The controls are summarized in the laminated Quick Reference cards that accompany this handbook.

Selecting the Mode of Operation

You use the DISPLAY key to select the full-screen mode. If the data is available on your system, the following modes (described in Operating Modes on page 1-6) can be selected:

•Chart

3-10

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Plus Series Fishfinders

• Fishfinder (Sonar)

• Data Log

The DISPLAY key also accesses the soft keys for the half-screen window options.

➤ To change the mode, press the DISPLAY key to show the DISPLAY pop-up, then

Selecting the Mode

of Operation

DISPLAY

press again to cycle through the modes available, shown in Figure 3-5.

"DISPLAY" TO SELECT FULL SCREEN OPTION

SOFTKEYS TO SELECT WINDOW OPTION

CURSOR

BRG 099 RNG 2.410nm

CHART SONAR LOG

WINDOWS

OFF ON

SELECT

WINDOWS

SPLIT

HOR VER

D5012-1

Figure 3-5: Using the DISPLAY Key

The selected mode is shown by an icon with a black (monochrome LCD) or red (color LCD) border and the mode is displayed on the screen. The associated half-screen window soft keys are also displayed.

When the required mode is shown, press ENTER or CLEAR. The default soft keys are displayed. The selected mode is shown full-screen; in Fishfinder and Chart mode you can switch on half-screen windows for additional display, as described in the following section.

If you press DISPLAY again, the pop-up and soft keys for the current mode are shown.

Using the Dedicated Keys in Different Display Modes

When certain dedicated (hard) keys are pressed on a unit with the Raychart feature, the sets of soft keys that appear can vary depending on whether the currently selected mode is fishfinder or chart. The following describes the soft keys that appear in the Fishfinder and Chart modes.

Chapter 3: Getting Started & Adjusting the Display 3-11

MULTI key

In Fishfinder mode on the L755RC Plus Monochrome display:

37%70%

ALARMS

POWER

AUTO LO HI

LIGHT CONTRAST

WHT LINE

OFF ON

In Fishfinder mode on all color displays:

70%

POWER

AUTO LO HI

LIGHT

COLOR

SETTINGS

WHT LINE

OFF ON

In Chartplotter mode on all displays:

70%

LIGHT

ALARMS key

In Fishfinder mode on all displays:

FISH

ALARM

OFF ON

SHALLOW

ALARM

DEEP

ALARM

D4895-2

of Operation

Selecting the Mode

D4896-2

In Chartplotter mode on all displays:

ALARMS

ARRIVAL ALARM

OFF TRACK ALARM

ANCHOR ALARM

GROUNDING ALARM

COUNTDOWN TIMER

ALARM CLOCK

ALARMS SET UP

SELECT ARRIVAL

ALARM RADIUS

D5031-1

0.01nm

OFF

5M/1.0nm

00:33:00

OFF

D4265-4

3-12

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Plus Series Fishfinders

Selecting a Half-Screen Window for Display

Note: Windows can only be used with Fishfinder or Chart screens, they are not available on the data log screen.

➤ To select a window for display:

Selecting the Mode

of Operation

The following soft keys are displayed with an image of each available window:

Fishfinder

1. From the full-screen Fishfinder or Chart mode, press the DISPLAY key.

DISPLAY

WINDOWS

OFF ON

SELECT

WINDOWS

SPLIT

HOR VER

D5011-1

Chart

DISPLAY

WINDOWS

OFF ON

SELECT WINDOW

D4156-2

2. In fishfinder mode check that SPLIT is set to HOR. To select a different window, press either SELECT WINDOWS soft key until the required window is highlighted. If necessary, this will toggle windows on. Press ENTER.

3. To toggle windows off, press the WINDOWS OFF ON soft key.

If any data boxes were displayed at the bottom of the full-screen image, they are switched off until you return to full-screen mode. However, you can use the SCREEN soft key in chart mode to switch the data boxes on - they are displayed in the upper window.

Figure 3-6 shows the half-screen horizontal windows (in fishfinder mode).

Switching Control Between Fishfinder & Chart Screens

In a combined or an integrated system, to switch control between fishfinder, radar and chart, you can change the full-screen mode using the DISPLAY key. Alternatively, when you have both fishfinder and chart displayed in halfscreen windows the soft key CHRT SNR lets you toggle operating control between the fishfinder and the chart window.

If a window is active, i.e., control of the cursor via the trackpad is available in that window, and you switch windows off, control automatically returns to the full-screen (upper window) mode.

Chapter 3: Getting Started & Adjusting the Display 3-13

Fishfinder:

DISPLAY

ZOOM MORE¬FREQUENCY

CHRT SNR

D5013-1

Chart:

GOTO MORE¬ROUTE

CHRT SNR

D5025-1

➤ To change the active window, press the CHRT SNR soft key to toggle control

between the fishfinder and chart display. The current active display is highlighted in gray (monochrome LCD) or red (color LCD) on the CHRT SNR label and the cursor appears in that window.

Returning to the Full-Screen Display

To return to the full-screen display you can turn windows off, as previously described. Alternatively, to return to full-screen display:

➤ Press and hold the DISPLAY key for 2 seconds to return to the currently

selected full-screen (upper window) display.

of Operation

Selecting the Mode

3-14

CDI Window

AUTO G RZ

50kHz

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Plus Series Fishfinders

BDI Window

AUTO G RZ

50kHz

100

Selecting the Mode

of Operation

XTE

150

200

225°T

0.28nm

WINDOWS

OFF ON

STEER PORT

WAYPOINT 001

ZOOMFREQUENCY

SELECT

WINDOWS

WPT BRG

351°T

WPT RNG

26.8nm

TTG

h:59m

BTM.LOCK A-SCOPE

SPLIT

HOR VER

20 20

nm nm

10 10

STEER STARBOARD

WAYPOINT 001

BTM.LOCK A-SCOPE

SELECT

WINDOWS

OFF ON

ZOOMFREQUENCY

100

150

200

XTE

1.45nm

WPT BRG

351°T

WPT RNG

23.1nm

TTG

h:13m

SPLIT

HOR VER

Depth/Temperature Window Chart Window

AUTO G RZ

50kHz

AUTO G RZ

50kHz

TEMPERATURE (°C)

26.4

26.0

25.6

25.2

24.8

24.4

24.0

23.6

23.2

WINDOWS

OFF ON

100

150

200

0102030405060

SPLIT

HOR VER

12.8

131

170

200

WINDOWS

OFF ON

ZOOM MORE¬FREQUENCY CHRT SNR

ZOOMFREQUENCY

MINUTES

BTM.LOCK A-SCOPE

SELECT

WINDOWS

DEPTH (ft)

Figure 3-6: Fishfinder Half-Screen Window Options

SELECT

WINDOWS

100

150

200

SPLIT

HOR VER

D5023-2

Chapter 3: Getting Started & Adjusting the Display 3-15

3.4 Fishfinder Display Control Functions

The Fishfinder automatically locates the bottom and displays the information using an appropriate scroll speed and range. However, controls are provided so you can adjust scroll speed and range. You can also select the transducer frequency and select certain data for display. This section describes how to use the controls to set-up your fishfinder display:

• Viewing databoxes

• Changing the scroll speed

• Changing the range

• Selecting the power setting

• Selecting the frequency

In addition this section describes how to select the fishfinder display options.

• Display Bottom Lock

• Display A-Scope

• Zoom an area of the image.

Viewing Data Boxes

The cursor data box and a group of up to six data boxes can be displayed, if the information is available on your system. You select which data is displayed in the boxes during system set up as described in Chapter 7. The default data box positions are along the bottom of the display. Each box can be moved to the required position on the screen using the context-sensitive cursor.

To switch the data boxes on and off you need to go to Chart mode – see Customizing the Screen Presentation Options on page 3-26. Switching the databoxes on/off in Chart mode also affects their display in Fishfinder Mode.

Fishfinder Display

Control Functions

Changing the Scroll Speed

The standard fishfinder display is the scrolling bottom image; this is a graphical representation of the echoes seen by the Fishfinder. New information appears at the right hand side of the display and scrolls to the left.

The speed at which the display scrolls is adjustable, but the same section of the bottom is displayed regardless of scrolling speed. As illustrated in Figure 3-7, if you select a faster speed, more detail is displayed and is useful when you are looking for fish; if you select a slower speed the information remains on the display for longer.

3-16

       

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Plus Series Fishfinders

Changing the Scroll

   

Speed

       

   



Figure 3-7: Effect of the Scroll Speed

The Fishfinder automatically adjusts the scroll speed, based on depth. Alternatively you can manually adjust the speed. If you select automatic adjustment, the scroll speed is related to boat speed as follows:

• Less than, or equal to 0.5 kn, scroll speed is constant at 10%

• Between 0.5–15 kn, scroll speed varies linearly with boat speed

• Greater than 15 kn, scroll speed is constant at 100%

SCROLL

SPEED

PAUSE

If you select manual adjustment, the scroll speed is not related to the speed of the boat over the bottom. You can also pause the display (the depth indication continues to be updated).

➤ To change the scrolling speed:

1. Press MENU, then press the SCROLL SPEED soft key.

2. If necessary, press the SCROLL AUTO MAN soft key to toggle the setting between AUTO and MAN.

3. For manual adjustment, use the trackpad to increase the scroll speed. You can press and hold the trackpad to change the value more rapidly.

4. Press ENTER to return to the Menu soft keys, then ENTER again to return to the default display.

➤ To pause the scrolling display:

1. Press MENU, then press the SCROLL SPEED soft key.

2. Press the PAUSE soft key. The display stops scrolling and the key is relabeled RESUME.

Chapter 3: Getting Started & Adjusting the Display 3-17

3. To resume scrolling, press the RESUME soft key. The key is relabeled PAUSE.

4. Press ENTER to return to the Menu soft keys, then ENTER again to return to the default display.

Selecting the Power Setting

The POWER soft key provides adjustment of the transducer signal. When AUTO is selected (default), the Fishfinder automatically determines the power setting based on the current depth. LO power (100 W) is used in depth ranges less than 8 ft (2.4 m) and HI power (600 or 1000 W, depending on your transducer) is selected for depths greater than 12 ft (3.7 m). When AUTO is selected the current automatic power setting is indicated in the top status line by an L (low) or H (high).

Note: When AUTO POWER has been selected, and you manually adjust the RANGE to 30 ft (10 m) or greater, the Fishfinder switches to HI power, regard-

less of what the digital depth is calculated to be.

Setting

Selecting the Power

If, however, you wish to manually adjust the power to suit current conditions, you can select either LO or HI power.

The power setting is retained when the unit is powered off.

➤ To change the power setting:

MULTI

1. Press the MULTI key to display the soft key controls.

POWER

AUTO

2. Press the POWER soft key to toggle between AUTO, LO, or HI power. The

selected setting is highlighted.

3. Press ENTER or CLEAR to return to the default screen.

Changing the Fishfinder Range

The Fishfinder automatically adjusts the display range. Alternatively, the RANGE key lets you select the maximum depth displayed on the scrolling bottom and A-Scope displays. You can also set the shift value to move the image window up or down within the current range.

If you select automatic range adjustment, the Fishfinder selects the shallowest range that keeps the bottom in the lower half of the display window. Shift is disabled (the value is ignored) when auto-range is selected.

Fishfinder Range

3-18

hsb

Plus Series Fishfinders

The following range/shift values are available:

Table 3-1: Range and Shift Values

Feet Fathoms Meters

Range Shift Range Shift Range Shift

511121

Changing the

10 2 2 1 4 1

15 5 3 1 6 2

20 5 4 1 8 2

30 10 5 1 10 2

40 10 8 2 15 5

50 10 10 2 20 5

60 20 15 5 25 5

80 20 20 5 30 10

100 25 25 5 40 10

150 50 30 10 50 10

200 50 40 10 60 20

250 50 50 10 80 20

300 100 60 20 100 25

400 100 80 20 150 50

600 200 100 25 200 50

800 200 150 50 300 100

1000 250 200 50 400 100

1500 500 250 50 500 100

2000 500 300 100 600 200

2500 500 400 100 800 200

3000 1000 500 100 1000 250

3500 875 600 150 1200 300

4000 1000 700 175 1400 350

4500 1500 750 250 1500 500

5000 1250 850 170 1700 425

Note:

1. Range detection below 3000 ft (1000 m) is only available with the L1250 Plus and L1250RC Plus displays after you have fixed the Depth Range setting to 5000 ft. See Depth Range (L1250 Plus and L1250RC Plus only) on page 7-15 for details.

2. All other range of 3000 ft (1000 m), unless repeating data from an L1250 Plus or L1250RC Plus via the High Speed Bus.

hsb

Plus Series Fishfinders are limited to a maximum depth

Chapter 3: Getting Started & Adjusting the Display 3-19

➤ To adjust the range and shift values:

1. Press RANGE, this sets adjustment to manual and the range soft keys are

RANGE

displayed. The range adjusts up or down depending on the direction pressed.

2. Use the RANGE key to adjust the range: press the up arrow to select a shal- lower range, press the down arrow to select a deeper range.

RANGE

AUTO MAN

3. If necessary, press the RANGE AUTO MAN soft key to select AUTO range. AUTO range is indicated by the letter R in the status bar.

4. To adjust the shift, press the appropriate SHIFT soft key: use the up soft key to select a shallower shift, use the down soft key to select a deeper shift. The image window is shifted up by the selected amount

5. Press ENTER to return to the default display.

When AUTO POWER has been selected, and you manually adjust the RANGE to 30 ft (10 m) or greater, the Fishfinder switches to HI power, regardless of what the digital depth is calculated to be.

Manually Adjusting RANGE to Ignore Surface Clutter

There may be a time when clutter near the water’s surface is so thick it returns an echo that is stronger than the return from the bottom. In this a case, it is possible the fishfinder may determine the clutter to be the seabed rather than the bottom itself. You can use the RANGE setting to force the fishfinder to ignore any interference in the upper boundaries of the water that may be giving false bottom readings.

If you manually adjust the RANGE to 400 ft (150 m) or greater, the Fishfinder ignores the first 25% of the range for the purpose of determining the digital depth. If the RANGE is set to 400 ft (150 m), the first 100 ft (37.5 m) is ignored for determining the depth. If the RANGE is set to 3000 ft (1000 m), the first 750 ft (250 m) is ignored, etc.

Changing the

Fishfinder Range

As an example, let’s say the RANGE is set to 400 ft but there is some clutter at 126 ft that is returning a stronger signal than the bottom. Because its return is stronger, the fishfinder determines the clutter to be bottom and displays it as the bottom depth (126 ft). See Figure 3-8.

The upper 25% (400 x 0.25 = 100 ft) of the range is ignored but because the clutter is deeper than this (126 > 100 ft), the clutter is still detected as bottom. If you then manually adjust the RANGE to 600 ft, the value that is ignored now increases to 150 ft (600 x 0.25 = 150). The clutter is now within the excluded range (126 < 150) and so is ignored. The correct bottom of 302 ft is now displayed.

3-20

AUTO G RZ H

50kHz

100

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Plus Series Fishfinders

AUTO G Z H

50kHz

200

Selecting the

Frequency

ZOOMFREQUENCY

Signal from surface clutter is stronger than from bottom. When RANGE is set to 400 ft, clutter is below top 25% of range (100 ft), so is incorrectly determined to be bottom.

BTM.LOCK A-SCOPE

200

300

400

ZOOMFREQUENCY

Manually adjusting RANGE to 600 ft, clutter is now within top 25% of the range (150 ft), so it is ignored and the correct bottom is detected.

BTM.LOCK A-SCOPE

600

D6061-1

Figure 3-8: Manually Adjusting RANGE to Ignore Surface Clutter

Selecting the Frequency

The frequencies used are 50 kHz and 200 kHz. The Fishfinder automatically selects the appropriate frequency. Alternatively, you can manually select either frequency, or both frequencies simultaneously. Each is suitable for a particular purpose:

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Plus Series Fishfinders use dual frequency sonar. The two

50 kHz Frequency

When using this frequency, the transducer scans a wide area. The 50 kHz signal penetrates water well, so is good for use in deep water.

200 kHz Frequency

When using this frequency, the transducer scans a narrower area, but produces a more detailed view. The 200 kHz signal is good for finding fish near the bottom or close together. It is better for use in shallow water.

Split Frequency

The transducer can operate in both 50 kHz and 200 kHz frequencies at the same time. If you choose split frequency operation, the scrolling bottom display is split horizontally; the upper half shows the 200 kHz detailed view and the lower half shows the 50 kHz image.

Chapter 3: Getting Started & Adjusting the Display 3-21

➤ To change the frequency:

FREQUENCY

1. Press the FREQUENCY soft key. The frequency selection soft keys are dis- played.

2. Press the appropriate soft key – 50 KHZ, 200 KHZ or SPLIT. The scrolling bot- tom is displayed in the selected frequency. If you choose split, the scrolling bottom is displayed in both frequencies with 200 kHz in the upper window and 50 kHz in the lower window.

3. If necessary, press the AUTO FREQ OFF ON soft key to select AUTO fre- quency. AUTO frequency is indicated by the letter F in the status bar.

4. Press ENTER or CLEAR to return to the default display.

You can choose the split frequency display with the fishfinder display options, Bottom Lock, A-Scope, or Zoom.

When the RANGE has been manually set to 400 ft (150 m) or greater, the digital depth calculation will be made at 50kHz, regardless of the FREQUENCY setting used. 200kHz can still be displayed, but will not be used in determining the depth.

Using Bottom Lock

The scrolling bottom display provides a top-down view, referenced from the surface of the water. Bottom Lock shows a water column of fixed height, referenced from the bottom, that appears flat. It removes bottom detail to provide an image of objects directly above the bottom, and is useful when you are looking for fish that feed close to the bottom.

Using Bottom Lock

You can select the Bottom Lock image to be vertically split with the scrolling bottom display, or it can replace the scrolling bottom display.

As illustrated in Figure 3-9, the bottom is shown as a straight line. Notice that some bottom features may extend above this line. The actual depth reading is given in the bottom left hand corner of the Bottom Lock display.

Range intervals on Bottom Lock are measured up from the bottom (rather than down from the surface). Thus, the bottom is shown as zero and the top number indicates the maximum distance above the bottom being displayed. You can adjust the Bottom Lock range.

If the A-Scope or Zoom image was displayed, selecting Bottom Lock automatically switches OFF A-Scope or Zoom. If you have split frequency selected, the Bottom Lock image is displayed in both frequency windows.

If Target Depth ID is ON (see Target Depth ID on page 7-13), the target depth is displayed as distance from the bottom.

3-22

➤ To display the Bottom Lock image:

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Plus Series Fishfinders

BTM.LOCK

played.

2. Press the BTM. LOCK OFF ON soft key to toggle the function ON.

1. Press the BTM. LOCK soft key. The Bottom Lock selection soft keys are dis-

Using Bottom Lock

AUTO G Z

200kHz

ZOOMFREQUENCY

Figure 3-9: Bottom Lock Display

3. Press the BTM. LOCK FULL SPLIT soft key to toggle between a full window bottom lock image or split windows. The bottom lock image is displayed. If you select split windows, the fishfinder display is split vertically, with the bottom lock image in the left hand window and the scrolling bottom display in the right hand window.

In a split window display, a vertical bar appears (along the right hand edge of the scrolling bottom image) that references the range being displayed in the bottom lock window. This bar varies in height as the bottom lock range is changed.

4. To adjust the range, press the appropriate BTM LOCK RANGE soft key: press the up arrow to select a larger range, press the down arrow to select a smaller range.

BTM.LOCK A-SCOPE

D5015-2

5. Press ENTER or CLEAR to return to the default display.

Chapter 3: Getting Started & Adjusting the Display 3-23

➤ To reposition the bottom lock image:

1. Use the trackpad to move the cursor to the bottom image until the text BL is

displayed near the cursor.

2. Press ENTER, a horizontal line appears, indicating the cursor is active. Use the trackpad to move the line to the required bottom lock image position.

3. Press ENTER to reposition the bottom lock image, or CLEAR to cancel the operation.

Using A-Scope

A-SCOPE

MODE

1 2 3

The scrolling bottom display provides a historical record of sonar echoes. Use the A-Scope screen to show raw sonar data directly from the transducer beam. This gives you a “real time” image of fish and bottom structure directly below the transducer. This function is very useful in showing the strength of the echo returned from a fish. At the lower end of the window, A-Scope also displays the patented Bottom Coverage width indication.

➤ To display the A-Scope image:

1. Press the A-SCOPE soft key. The display is split vertically, with the A-Scope image in the right hand window and the scrolling bottom image in the left hand window.

2. Press the A-SCOPE MODE soft key to select one of the three modes for A-Scope, as demonstrated in Figure 3-10:

i. Mode 1, in which the A-Scope image is angled outward as the signal

width (indicated with dotted lines) increases with depth.

ii. Mode 2, in which the image expands to take up the entire A-Scope win-

dow, providing greater resolution.

iii. Mode 3, in which only the left hand side of the image displayed in Mode

2 expands to the entire A-Scope window. This mode provides the greatest resolution.

Using A-Scope

3. Press ENTER to accept your selection.

Note: If the Bottom Lock or Zoom image is displayed, selecting A-Scope automatically switches If you have split frequency selected, the A-Scope image is displayed in both frequency windows.

➤ To remove the A-Scope image:

1. Press the A-SCOPE soft key.

A-SCOPE OFF ON

2. Press the A-SCOPE ON OFF soft key to toggle off A-Scope.

3. Press ENTER.

OFF

Bottom Lock or Zoom.

Using Zoom

3-24

    

AUTO G Z

50kHz

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Plus Series Fishfinders

 

Figure 3-10: The Three Modes of A-Scope

Using Zoom

Zoom enlarges all or part of the scrolling bottom display. You can select automatic zoom so the fishfinder selects a zoom level that keeps the bottom in the lower half of the display window. Alternatively, you can manually pick the area to be zoomed.

➤ To select zoom:

ZOOM

1. Press the ZOOM soft key, if necessary press the ZOOM ON OFF soft key to

2. Press the ZOOM FULL SPLT soft key to toggle between a full window zoom

ZOOMFREQUENCY

100

BTM.LOCK A-SCOPE

52.3

A-SCOPE

52.3

A-SCOPE



toggle zoom on.

image or split windows. If you select split windows, the display is split vertically, with the zoom image in the left hand window and the scrolling bottom display in the right hand window. In a split window display, a vertical bar appears (along the right hand edge of the scrolling bottom image) that references the range being displayed in the zoom window. This bar varies in height with the selected zoom level.

3. If necessary, press the ZOOM AUTO MAN soft key to toggle the setting between AUTO and MAN. The manual setting allows you to reposition the zoomed image.

4. For zoom level selection, press the ZOOM X 2 4 6 soft key until the required zoom level is selected.

5. Press ENTER or CLEAR to return to the default display.

Chapter 3: Getting Started & Adjusting the Display 3-25

➤ To reposition the zoom window:

If manual zoom is selected, you can reposition the area of the image that is zoomed.

1. Use the trackpad to place the cursor in the zoom window, the text ZOOM is displayed near the cursor.

2. Press ENTER, a horizontal line appears, indicating the cursor is active. Use the trackpad to select the new position.

3. Press ENTER to reposition the zoom image, or CLEAR to cancel the operation.

If the Bottom Lock or A-Scope image was displayed, selecting Zoom automatically switches OFF Bottom Lock or A-Scope. If you have split frequency selected, the selected Zoom image is displayed in both frequency windows.

Using Zoom

3-26

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Plus Series Fishfinders

3.5 Chart Display Control Functions (Raychart Models)

Customizing the Screen Presentation Options

The SCREEN soft key lets you set the following screen presentation options on or off:

(Raychart Models)

Control Functions

Chart Display

CRSR BOX

OFF ON

CHRT GRID

OFF ON

DATABOXES

OFF ON

CUSTOM OFF ON

D4177-1

Switching the Cursor Data Box On and Off

The cursor data box provides the cursor’s position in latitude/longitude and/or bearing/range. If you wish to see a full image, you can switch the data box off.

➤ To control the cursor data box:

SCREEN

CRSR BOX

OFF ON

SCREEN

CRSR BOX

CHRT GRID

OFF ON

1. Press the SCREEN soft key.

2. Press the CRSR BOX soft key to toggle the setting from OFF to ON or from ON to OFF.

3. To return to the default soft key display, press ENTER.

➤ You can move the cursor data box using the context-sensitive cursor.

Switching Chart Grid On and Off

The Chartplotter display includes grid lines of latitude and longitude, which you can use to help determine position on the chart. The grid lines can be switched on if required.

➤ To turn the chart grid on or off:

1. Press the SCREEN default soft key.

2. Press the CHRT GRID soft key to toggle the setting from OFF to ON or from ON to OFF.

To return to the default soft key display, press ENTER.

Data Boxes

A group of up to six data boxes can be displayed, if the information is available on your system. You select which data is displayed in the boxes during

system set up as described in Chapter 7.

The default data box positions are along the bottom of the display. Each box can be moved to the required position on the screen using the context-sensitive cursor.

Note: If you select fishfinder, BDI, CDI or Nav Data for display in a halfscreen window, the data boxes are temporarily hidden.

Chapter 3: Getting Started & Adjusting the Display 3-27

At any time, you can switch the group of data boxes on or off using the SCREEN soft key. When first installed, the boxes are all OFF. When the display unit is switched off and on again, the data boxes return to their last-used states (ON or OFF) and positions.

Note: The SCREEN soft key does not control the sixteen data boxes that can be displayed in the half-screen window.

➤ To switch the group of data boxes on or off:

SCREEN

CHRT GRID

CRSR BOX

DATABOXES

OFF ON

BOX

1. Press the SCREEN default soft key.

2. Press the DATABOXES soft key to toggle the setting from ON to OFF or from OFF to ON.

To return to the default soft key display, press ENTER.

If you turn the data boxes on and none are displayed, you need to select the ones you require using the system set up menu, as described in Section 7.3.

➤ To move any data box:

1. Use the trackpad to position the cursor over the box until the letters BOX are displayed.

2. Press ENTER to take control of the box, use the trackpad to move it to the required position, and press ENTER again.

Custom Options - Chart Mode

When chart details have been customized in the Chart Set Up menu (as described in Section 7.5) the SCREEN soft key can be used to switch the custom chart options off or on: When set to ON, all chart options set to CUSTOM in the Customize Chart menu are displayed; when set to OFF, options set to CUSTOM are not shown.

Options

Customizing the

Screen Presentation

The factory default for custom chart options is ON.

➤ To switch the customized options on or off:

SCREEN

CHRT GRID

CUSTOM

CRSR BOX

DATABOXES

OFF ON

1. Press the SCREEN default soft key.

2. Press the CUSTOM soft key to toggle the setting from OFF to ON or from ON to OFF.

To return to the default soft key display, press ENTER.

3-28

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Plus Series Fishfinders

Moving Around the Chart

You will normally operate the chartplotter with the chart showing your vessel’s current location. The default orientation is North-Up, and the vessel moves across the screen. You will need to move the chart if your vessel moves out of the area currently displayed, or if you wish to examine or place

Moving Around the

waypoints in another area. Alternatively, you can home the cursor onto the vessel using FIND SHIP.

Chart

There are four ways in which you can move the chart:

• Use the trackpad to move the cursor to the edge of the chart. The chart will pan across. This method is useful if the area you wish to see is only just off the screen.

• Use the context-sensitive cursor to change the chart center.

• Automatically re-center the vessel using the FIND SHIP soft key.

• Change the chart scale to zoom out and in to a new area centered on the cursor position. This method is useful if the area you wish to see is a long distance away.

Changing the Chart Center

You can move the area of the chart displayed on the screen using the contextsensitive cursor. This allows you to center your vessel in the middle of the screen, or to move the chart so that your vessel is displayed off-center anywhere on the screen.

➤ To center the chart:

1. Use the trackpad to move the cursor to the vessel’s position. The cursor text

POS

POS is displayed.

2. Press CLEAR. The chart is moved so that your vessel’s position is in the center of the screen.

3. Use FIND SHIP, as described in the following section.

➤ To move your vessel’s position off-center:

1. Move the cursor over your vessel’s position until the letters POS are dis-

POS

played.

2. Press ENTER to take control of the chart position. The letters POS are now in inverse video, and the cursor symbol has changed to a four-way arrow. This indicates that the cursor can be used to move the chart in any direction.

Chapter 3: Getting Started & Adjusting the Display 3-29

D4278-1

Figure 3-11: Changing the Chart Center

Chart

Moving Around the

3. Use the trackpad to move the cursor to the required position.

4. Press ENTER to select the position and return to normal cursor control. The chart is redrawn with the vessel position at the cursor. Alternatively, you can press CLEAR to abandon the move and leave the chart (and vessel) in its former position.

Using FIND SHIP

FIND SHIP is used in chart mode to re-draw the chart with the vessel at the center and the cursor homed onto the vessel.

GOTO SCREENROUTE FIND SHIP

D4160-1

When you press FIND SHIP the following occur:

• The chart is re-drawn with the vessel’s position in the center.

• The cursor is homed onto the vessel position and moves with it.

• When the vessel moves near the edge of the chart window, the chart is redrawn to place the vessel and cursor at the center again.

• The status bar indicates vessel position, speed and course over ground.

➤ To release the cursor from homed mode press the trackpad to move the cursor

away from the vessel’s current position. The status bar shows the cursor position, range and bearing.

3-30

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Plus Series Fishfinders

Changing the Chart Scale

The RANGE key allows you to change the chart scale so that you can see a smaller or larger area on the screen.

Plotter mode is available to allow you to zoom into a smaller area, even when no chart data is available for that scale. Section 7.5 describes how to set plotter

Moving Around the

mode on/off.

Chart

The cartographic detail available on charts varies according to the chart scale and some areas include detail at smaller scales than others. This can cause blank areas on the display when adjacent areas with different levels of detail are displayed. To reduce this effect you can use the Chart Set Up options (see Section 7.5) to set chart display detail to simple. Then, as you zoom in, charted areas are displayed but with less detail shown.

You can change the chart scale for two purposes:

• To see either more detail (of a smaller area) or a larger area (in less detail) on the screen.

• To move the display to another area of the chart, by zooming out to a small scale chart, then zooming in on another position centered on the cursor.

Each time you press the RANGE key, the chart scale changes to the next available setting. The status bar indicates the distance from top to bottom of the screen, in nautical miles.

Vertical distance displayed on chart

6nm

CSR 50 45'980N POS 001 01'490W

Status Bar

D4175-3

RANGE

Increases the chart distance

Decreases the chart distance

➤ To change the scale quickly, press and hold the required arrow on the RANGE

key.

RANGE

The distance indicator at the left-hand end of the status bar is updated whenever you change the chart scale.

➤ To zoom in to a larger-scale (more detailed) chart:

1. Use the trackpad to position the cursor in the area you wish to see in more detail.

2. Press the lower part of the RANGE key to zoom into the area.

The section of the chart around the cursor is enlarged to fill the screen with

RANGE

a larger-scale chart showing more detail. The cursor is now positioned in the center of the screen.

The distance indicated at the top left of the screen is updated.

Chapter 3: Getting Started & Adjusting the Display 3-31

3. If further chart enlargement is available using the current chart card you can press the bottom of the RANGE key to zoom in again, re-positioning the cursor first if required.

An area of further chart detail is indicated by a box around the area as shown in Figure 3-12.

Chart Boundary indicates further detail is available inside

D4279-2

Figure 3-12: Chart Boundaries

4. When no further chart detail is available, as you press the bottom of the RANGE key, the effect depends on whether Plotter Mode is on or off as follows:

Chart

Moving Around the

• If Plotter Mode is Off, the chart scale remains unchanged, indicating

the smallest chart scale is displayed.

• If Plotter Mode is On, the scale is decreased and the message NO CHART

DATA is displayed. The vessel, waypoints, routes and tracklines are displayed without cartography.

The chart information is restored when you return to a chart scale for which the information is available.

➤ To zoom out to a smaller-scale (less detailed) chart, simply press the upper part

RANGE

of the RANGE key as many times as required.

3-32

Radar/Chart Overlay

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Plus Series Fishfinders

Chart

If radar data is available from another display connected on

hsb

, the radar targets can be overlaid onto the full-screen chartplotter display. The radar/ chart overlay option helps you to distinguish between fixed, charted objects and other objects that could be moving vessels. Some radar controls are

Moving Around the

available in overlay mode.

The following criteria must be true for radar/chart overlay to function correctly:

• Position and heading data are provided so that vessel position and orienta-

tion can be determined.

• The vessel must be displayed on screen.

• The chartplotter must be in North Up or Course Up mode (see Section 7.7).

• The chartplotter range must be between 1/4nm and 48nm (equivalent to a

radar range of 1/8nm to 24nm).

• Custom range scales are disabled on the radar.

• The radar must be transmitting.

To ensure the vessel remains on the screen, you could use Find Ship (see Using FIND SHIP on page 3-29) to home the cursor onto the vessel.

When Radar/Chart overlay is switched on, the status bar indicates OVL. If the option is switched on but the overlay is not visible (because one of the above criteria has failed), the status bar indication changes to (OVL).

When Radar/Chart overlay is switched on the soft key MORE... provides access to the SCREEN soft key and to the radar controls TARGETS and MARPA. The radar GAIN control is also active in overlay mode.

Note: Radar/Chart overlay is displayed at the current chart range. You should be aware that if radar is shown on any other display, its range will match that displayed on Radar/Chart overlay. Conversely, if you change the radar range on any display, the Radar/Chart overlay image will change to the new radar range.

➤ To select radar/chart overlay:

1. Press the DISPLAY key to show the DISPLAY pop-up, then if necessary

press again to select Chart mode.

2. Press the OVERLAY OFF ON soft key to toggle the option on.

The two highest intensity radar returns are displayed in purple, over the chart image. The radar image is translucent, so that chart text, contours and outlines are visible beneath the radar targets.

Chapter 4: Fishfinder Operations 4-1

Chapter 4: Fishfinder Operations

4.1 Introduction

Basic Fishfinder operation, including a description of the different display options, was given in Chapter 3. This chapter helps you the get the most from your Fishfinder. It describes how to fine-tune the image and use the controls to get additional information.

This chapter covers the following topics:

• Interpreting and Adjusting the Fishfinder Image, including fish and bot-

tom indications, using the white line feature and adjusting gain (sensitivity)

• Viewing Data Windows

• Setting up and Using Alarms for fish, shallow water and deep water

• Using a VRM to Determine Depth and Distance from Boat of a particular

spot

Introduction

• Placing Waypoints

• Using the Man Overboard (MOB) function

4.2 Interpreting and Adjusting the Fishfinder Image

The the bottom of a lake or sea. The transducer sends high-frequency sound waves down into the water; these sound waves strike fish, the bottom, or other objects in the water and return as echoes. The fishfinder interprets these echoes to present an image of the fish and bottom.

The strength of echoes is indicated by different colors (or shades of gray in the monochrome L755RC Plus). You can use this information to determine the size of fish and the bottom structure. Other objects in the water, such as debris and air bubbles, also return echoes; these echoes are generally weaker than the fish or bottom echoes and produce background noise or clutter on the Fishfinder display.

The Fishfinder provides controls to reduce the background noise and to adjust the way in which echoes of different strengths are displayed. The color Fishfinders also let you select the background color and remove the display colors for weaker echoes. Refer to Changing the Brightness & Color Settings (Color LCD) on page 3-6 for details on these two functions.

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Plus Series Fishfinders use sound waves (sonar) to find fish and show

Fish Indications

4-2

The Fishfinder provides a White Line feature which helps to distinguish between the bottom and fish (or other items such as weed) that are close to the bottom.

Fish Indications

When the Fishfinder detects a fish, it displays an arch-shaped mark. In general, a larger arch indicates a larger fish, though this rule is not always true. Let’s say that there are two fish of the same size: one is close to the surface, the other is near the bottom. The fish which is close to the surface has a larger arch because, being closer, more sound waves get returned to the Fishfinder.

To display the depth of the fish, switch on the TARGET DEPTH ID from the

SONAR SET UP menu, as described in Section 7.4, Fishfinder Set Up Parameters.

The sound waves are actually reflected by the swim bladder near the center of the fish, not by the body of the fish. The size of this swim bladder is different for different kinds of fish and this can affect the size of fish arches on the image. A fish with a large swim bladder produces a large fish arch, while a fish with a small one produces a small arch. Several arches together show a school of fish. Figure Figure 4-1 illustrates some typical fish indications.

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An arch-shaped image indicates a fish.

Plus Series Fishfinders

50 kHz

200 kHz

Figure 4-1: Fish Indications

The same fish appears differently when shown by the 50 kHz or 200 kHz transducer beams.

A shallow arch is generated when the the boat is moving slowly.

This indicates a group of small fish.

A fish moving under a stopped boat shows as a line.

When the boat is moving very fast, a fish appears as two parallel lines.

D5017-2

Chapter 4: Fishfinder Operations 4-3

Effect of Frequency and Boat Speed

The return from a fish has a different appearance depending on the frequency used: 50kHz produces a wide beam, so a fish spotted by this frequency gives a broad arch; the 200 kHz beam is narrower so the same fish produces a narrower arch.

The shape of the arch is also affected by the speed of the boat. If the boat is moving slowly, the arches tend to be longer; if the boat is moving more quickly, the arches are short and peaked. If the boat is moving very fast, a fish may be indicated by a single vertical line.

In Bottom lock mode the fish arches may appear distorted as the bottom topography is removed from the image.

Bottom Indications

The bottom usually produces a strong echo, so it is easy for the Fishfinder to see a lot of detail. The Fishfinder can indicate many different kinds of bottom conditions.

Bottom Indications

As illustrated in Figure 4-2, a hard bottom appears as a thin line.

Hard bottom (sand)

Soft bottom (mud)

Rocky bottom

White line feature on:

Figure 4-2: Fishfinder Bottom Indications

D5016-2

Using White Line

4-4

An uneven bottom which is covered with rocks or coral produces a complex display; the bottom image is irregular, with long tails pointing upward. A wreck produces a similar image.

A softer bottom or a bottom covered with seaweed produces a wide line, as the sound waves reflect from different layers of the bottom. In Figure 4.2b, the Fishfinder is getting a good echo from the bottom, so the upper layer of the bottom is shown as dark gray.

Notice that the lower layer of the bottom is shown as a lighter gray, this indicates a weaker echo. This could mean that the upper layer is soft; some sound waves may get through this layer and be reflected as a more solid layer below.

It is also possible that the sound waves are making two complete trips – hitting the bottom, bouncing off the boat, then reflecting off the bottom again; this can happen if the water is shallow, the bottom is hard, or gain is set high.

Using White Line

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Plus Series Fishfinders

The White Line feature separates echoes from fish near the bottom and the bottom itself. When the White Line is switched on, the Fishfinder displays the echoes differently.

With color LCDs, the strongest echoes are displayed in the background color with a thin line on top. All other echoes remain unchanged.

In the L755RC Plus monochrome LCD, the weakest echoes continue to be displayed in the background color white, but colors for the other signal are reversed. Thus, from the strongest to the second weakest the colors are: light gray with a thin black line on top, dark gray, black.

➤ To switch the white line feature on and off:

MULTI

1. Press the MULTI key, the WHT LINE soft key is displayed.

WHT LINE

OFF ON

2. Press the WHT LINE soft key to toggle the white line feature ON or OFF.

Adjusting Display Gain (Sensitivity)

The fishfinder provides controls for GAIN, COLOR GAIN, and STC. These controls, accessed from the GAIN key, are used to reduce background noise and determine how different strength echoes are shown. Automatic adjustment of GAIN or COLOR GAIN is available, alternatively you can manually adjust any of these parameters using the trackpad and you can finetune the auto-gain setting. You adjust gain for each transducer frequency independently.

Raymarine L1250, L1250RC, L755Rc, L760, L760RC Owner's Handbook Manual

Specifications and Main Features

Frequently Asked Questions

User Manual