Humminbird 385ci, 385CI DI User Manual

385ci and 385ci DI Combo

Operations Manual

531956-1EN_A

Thank You!

Thank you for choosing Humminbird®, America's #1 name in fishfinders. Humminbird® has built its reputation by designing and manufacturing top-quality, thoroughly reliable marine equipment. Your Humminbird® is designed for trouble-free use in even the harshest marine environment. In the unlikely event that your Humminbird® does require repairs, we offer an exclusive Service Policy - free of charge during the first year after purchase, and available at a reasonable rate after the one-year period. For complete details, see the separate warranty card included with your unit. We encourage you to read this operations manual carefully in order to get full benefit from all the features and applications of your Humminbird® product.

Contact our Customer Resource Center at 1-800-633-1468 or visit our Web site at humminbird.com.

WARNING! This device should not be used as a navigational aid to prevent collision, grounding, boat damage, or personal injury. When the boat is moving, water depth may change too quickly to allow time for you to react. Always operate the boat at very slow speeds if you suspect shallow water or submerged objects.

WARNING! Disassembly and repair of this electronic unit should only be performed by authorized service personnel. Any modification of the serial number or attempt to repair the original equipment or accessories by unauthorized individuals will void the warranty.

WARNING! This product contains chemicals known to the State of California to cause cancer and/or reproductive harm.

WARNING! Do not travel athigh speed with the unitcoverinstalled. Remove the unit cover before traveling at speeds above 20 mph.

NOTE: Some features discussed in this manual require a separate purchase, and some features are only availableon international models. Every effort has beenmade to clearly identify those features. Please read the manual carefully in order to understand the full capabilities of your model.

ENVIRONMENTAL COMPLIANCE STATEMENT: It is the intention of Humminbird® tobe a responsible corporate citizen, operating in compliance with known and applicable environmentalregulations, and a goodneighborin the communities where we make or sell our products.

WEEE DIRECTIVE: EU Directive 2002/96/EC “Wasteof Electricaland Electronic Equipment Directive (WEEE)” impacts most distributors, sellers, and manufacturers of consumer electronics in the European Union. The WEEE Directive requires the producer of consumer electronics to take responsibility for the management of waste from their products to achieve environmentally responsible disposal during the product life cycle.

WEEE compliancemay not be requiredin your location for electrical &electronic equipment (EEE), nor may it be required for EEE designed and intended as fixed or temporary installation in transportation vehicles such as automobiles, aircraft, and boats. In some European Union member states, these vehicles are considered outside of the scope of the Directive, and EEE for those applications can be considered excluded from the WEEE Directive requirement.

This symbol (WEEE wheelie bin) on product indicates the product must not be disposed of with other household refuse. It must be disposed of and collected for recycling and recovery of waste EEE. Humminbird® will mark all EEE products in

accordance with the WEEE Directive. It is our goal to comply in the collection, treatment, recovery, and environmentally sound disposal of those products; however, these requirements do vary within European Union member states. For more information about where you should dispose of your waste equipment for recycling and recovery and/or your European Union member state requirements, please contact your dealer or distributor from which your product was purchased.

ROHS STATEMENT: Product designed and intended as a fixed installation or part of a system in a vessel may be considered beyond the scope of Directive 2002/95/EC of the European Parliament and of the Council of 27 January 2003 on the restriction of the use of certain hazardous substances in electrical and electronic equipment.

ATTENTION INTERNATIONAL CUSTOMERS: Products sold in the U.S. are not intended for use in the international market. Humminbird® international units provide international features and are designed to meet country and regional regulations. Languages, maps, time zones, units of measurement, and warranty are examples of features that are customized for Humminbird® international units purchased through our authorized international distributors.

To obtain a list of authorized international distributors, please visit our Web site at humminbird.com or contact our Customer Resource Center at (334) 687-6613.

300 Series™, Down Imaging™, DualBeam PLUS™, Fish ID+™, Humminbird®, RTS™, RTS Window™, Structure ID®, SwitchFire™, WhiteLine™, UniMap™, and X-Press™ Menu are trademarked by or registered trademarks of Humminbird®.

Baekmuk Batang, Baekmuk Dotum, Baekmuk Gulim, and Baekmuk Headline are registered trademarks owned by Kim Jeong-Hwan.

Navionics® Gold, HotMaps®, and HotMaps® Premium are registered trademarks of Navionics®.

ProMap™ and LakeMaster® are trademarked by or registered trademarks of Waypoint Technologies, Inc.

Power On 1

How Sonar Works 2

DualBeam PLUS™ Sonar (DualBeam PLUS™ models only [385ci]) ................................ 4

Down Imaging™ Sonar (Down Imaging™ models only [385ci DI]).................................. 5

Dual Beam Ice Transducer (optional-purchase XI 9 20 Ice Transducer only) .................. 6

How GPS Works 7

What’s on the Sonar Display 8

Understanding the Sonar Display .......................................................................... 10

Real Time Sonar (RTS™) Window .......................................................................... 10

SwitchFire™ ............................................................................................................ 11

Freeze Frame and Active Cursor.............................................................................. 11

Instant Image Update.............................................................................................. 11

Bottom Presentation ................................................................................................ 12

What’s on the Down Imaging™ Display

(Down Imaging™ models only [385ci DI])

Understanding the Down Imaging™ Display ........................................................ 16

Interpreting the Display .......................................................................................... 16

Down Imaging™ Sensitivity .................................................................................... 17

Freeze Frame and Active Cursor.............................................................................. 17

Sonar View .............................................................................................................. 20

Sonar Zoom View .................................................................................................... 21

Split Sonar View ...................................................................................................... 22

Big Digits View ........................................................................................................ 23

Down Imaging™ View

Circular Flasher View .............................................................................................. 25

Snapshot and Recording View................................................................................ 30

Bird’s Eye View ........................................................................................................ 36

(Down Imaging™ models only [385ci DI]) ..................................24

Table of Contents

Chart View.............................................................................................................. 37

Chart/Sonar Combo View...................................................................................... 39

Chart/Down Imaging™ Combo View Down Imaging™/Sonar Combo View

View Orientation.................................................................................................... 42

Viewing Cartography ............................................................................................ 42

Introduction to Navigation 45

Waypoints, Routes, and Tracks ............................................................................ 45

Save, Edit, or Delete a Waypoint .......................................................................... 47

Navigate to a Waypoint or Position...................................................................... 49

Add a Waypoint Target or Trolling Grid ................................................................ 50

Save, Edit, or Delete a Route ................................................................................ 51

Save or Clear a Current Track................................................................................ 52

Edit, Delete, or Hide Saved Tracks........................................................................ 52

Add Maps to Your Fishfinder ................................................................................ 53

Export Navigation Data.......................................................................................... 54

What’s on the 300 Series™ Control Head 55

Key Functions 56

POWER/LIGHT Key .............................................................................................. 56

VIEW Key .............................................................................................................. 56

INFO Key ................................................................................................................ 57

MENU Key ............................................................................................................ 57

4-WAY Cursor Control Key .................................................................................. 57

MARK Key.............................................................................................................. 58

GOTO Key................................................................................................................ 59

ZOOM (+/-) Key...................................................................................................... 59

EXIT Key ................................................................................................................ 59

(Down Imaging™ models only [385ci DI])........ 40

(Down Imaging™ models only [385ci DI]) ...... 41

SD Card Slot 60

The Menu System 61

Table of Contents

Start-Up Options Menu 62

Normal...................................................................................................................... 62

Simulator ................................................................................................................ 63

System Status ........................................................................................................ 63

Self Test .................................................................................................................... 64

Accessory Test.......................................................................................................... 64

GPS Diagnostic View .............................................................................................. 65

X-Press™ Menu 66

Main Menu 67

Quick Tips for the Main Menu

Note for all Menu Settings ............................................................................................ 68

User Mode (Normal or Advanced) ................................................................................ 69

.................................................................................... 68

Sonar X-Press™ Menu

Sensitivity ................................................................................................................ 72

Upper Range (Advanced: Sonar, Split Sonar, Circular Flasher,

and Big Digits Views only)

Lower Range .......................................................................................................... 73

Chart Speed ............................................................................................................ 74

Bottom Lock Bottom Range Cancel Navigation

(Sonar Zoom View only) .......................................................................... 74

(Sonar Zoom View only when Bottom Lock is On) .................................... 74

Down Imaging™ X-Press™ Menu

Imaging Sensitivity .................................................................................................. 77

Upper Range

Lower Range............................................................................................................ 78

Chart Speed.............................................................................................................. 78

Imaging Colors ........................................................................................................ 79

Cancel Navigation

(Advanced) .......................................................................................... 77

Flasher X-Press™ Menu

Sensitivity ................................................................................................................ 81

(Sonar Views only)

........................................................................................ 73

(only when navigating).................................................................. 75

(Down Imaging™ Views only [385ci DI])

(only when Navigating) ................................................................ 79

(Circular Flasher View only)

iii

Table of Contents

Upper Range (Advanced: Sonar, Split Sonar, Circular Flasher,

and Big Digits Views only)

Lower Range ........................................................................................................ 82

Color Palette

(Circular Flasher, Ice Fishing Mode only) ................................................ 82

Cancel Navigation

...................................................................................... 81

(only when navigating)................................................................ 83

Navigation X-Press™ Menu

(Navigation views only)

Waypoint [Name] (only with an active cursor on a waypoint)...................................... 85

Cursor To Waypoint

(Chart or Combo View only) ...................................................... 85

Save Current Track ................................................................................................ 85

Clear Current Track ................................................................................................ 86

Save Current Route Skip Next Waypoint Cancel Navigation Remove Target Remove Grid Sonar Window Waypoint [Name]

(only when Navigating) ............................................................ 86

(only when Navigating) .............................................................. 86

(only if Target is Active) .................................................................... 86

(only if Grid is Active)............................................................................ 87

(Combo View only) .......................................................................... 87

(Most recently-created waypoint) .................................................. 87

Snapshot and Recording X-Press™ Menu

(Snapshot and Recording View only)

Start Recording (optional-purchase SD Card, Snapshot and

Recording View only) ....................................................................................................

Stop Recording Delete Image

and Recording View only) ............................................................................................

Delete All Images

and Recording View only) ............................................................................................

Delete Recording

and Recording View only)..............................................................................................

Delete All Recordings

and Recording View only)..............................................................................................

Pings Per Second

and Recording View only)..............................................................................................

(optional-purchase SD Card only).......................................................... 89

(optional-purchase SD Card, Snapshot

Table of Contents

Playback Speed (optional-purchase SD Card, Snapshot and Recording View only) ........ 91

Stop Playback

Alarms Menu Tab 93

Depth Alarm ............................................................................................................ 94

Fish ID Alarm............................................................................................................ 94

Low Battery Alarm .................................................................................................. 94

Temp. Alarm ............................................................................................................ 95

Off Course Alarm .................................................................................................... 95

Arrival Alarm ............................................................................................................ 96

Drift Alarm................................................................................................................ 96

Alarm Tone .............................................................................................................. 96

Sonar Menu Tab 97

Beam Select ............................................................................................................ 98

Imaging Frequency (Down Imaging™ Views only [385ci DI]) ........................................ 99

Surface Clutter ...................................................................................................... 100

SwitchFire™ .......................................................................................................... 100

Fish ID+™ .............................................................................................................. 101

Fish ID Sensitivity .................................................................................................. 102

Real Time Sonar (RTS™) Window ........................................................................ 102

Sonar Colors

Circular Flasher View, and Big Digits View)

Bottom View .......................................................................................................... 103

Zoom Width............................................................................................................ 103

83 kHz Sensitivity (Advanced, DualBeam PLUS™ Sonar only [385ci]) .......................... 104

455 kHz Sensitivity (Advanced, Down Imaging™ only [385ci DI])................................ 104

Depth Lines (Advanced) .......................................................................................... 104

Noise Filter (Advanced)............................................................................................ 105

Max Depth (Advanced) ............................................................................................ 105

Water Type (Advanced) ............................................................................................ 106

Ice Fishing Mode .................................................................................................. 106

Imaging Colors

(optional-purchase SD Card only) .............................................................. 92

(Sonar View, Sonar Zoom View,

.............................................................. 103

(Down Imaging™ Views only [385ci DI]) ............................................ 106

Table of Contents

Navigation Menu Tab 107

Current Track........................................................................................................ 108

Saved Tracks ........................................................................................................ 108

Waypoints............................................................................................................ 109

Routes .................................................................................................................. 110

Chart Orientation ................................................................................................ 110

North Reference .................................................................................................. 110

Waypoint Decluttering

Grid Rotation........................................................................................................ 111

Trackpoint Interval .............................................................................................. 111

Track Min Distance Map Datum

(Advanced) ........................................................................................ 112

Course Projection Line ........................................................................................ 112

Export All Nav Data ............................................................................................ 112

Delete All Nav Data

Continuous Navigation Mode ............................................................................ 113

Chart Menu Tab 114

Lat/Lon Grid.......................................................................................................... 115

Navaids on Bird’s Eye View ................................................................................ 115

Chart Select.......................................................................................................... 115

Set Simulation Position Set Map Offset

Clear Map Offset

Shaded Depth ...................................................................................................... 116

Chart Detail Level

Map Borders ........................................................................................................ 118

Spot Soundings.................................................................................................... 118

Contour Lines Depth Colors

(optional-purchase LakeMaster® charts only)........................................ 119

(Advanced) ...................................................................... 111

(Advanced) ............................................................................ 112

(Advanced)............................................................................ 113

(Advanced) .................................................................. 115

(Advanced)................................................................................ 116

(Advanced) ............................................................................ 116

(optional-purchase Navionics® charts only) .................................. 117

(optional-purchase LakeMaster® charts only) ...................................... 119

Table of Contents

Depth Highlight (optional-purchase LakeMaster® charts only) .................................... 119

Depth Highlight Range (+/-) Water Level Offset

(optional-purchase LakeMaster® charts only) ................................ 120

Shallow Water Highlight Lake List

(optional-purchase LakeMaster® charts only) ................................................ 120

Setup Menu Tab 122

Units - Depth.......................................................................................................... 123

Units - Temp

Units - Distance...................................................................................................... 123

Units - Speed.......................................................................................................... 123

User Mode ............................................................................................................ 123

Language

Triplog Reset .......................................................................................................... 124

Restore Defaults .................................................................................................... 124

Select Readouts Depth Offset Temp. Offset Speed Calibration Local Time Zone Daylight Saving Time Position Format Time Format Date Format Digits Format NMEA Output

Sonar ...................................................................................................................... 129

Demonstration........................................................................................................ 129

Sound Control ........................................................................................................ 129

Screen Snapshot.................................................................................................... 130

(International only) .............................................................................. 123

(International only).................................................................................... 124

(Advanced, Sonar View and Down Imaging™ View only) .................. 125

(Advanced).......................................................................................... 126

(Advanced, with Temp/Speed only)................................................ 126

(Advanced) .................................................................................... 126

(Advanced) .................................................................................... 127

(Advanced, International only)................................................................ 127

(Advanced) ..........................................................................................128

(Advanced) ...................................................................................... 128

(optional-purchase LakeMaster® charts only) ................ 119

(optional-purchase LakeMaster® charts only) ...................... 120

(Advanced)............................................................................ 127

vii

Table of Contents

Views Menu Tab 131

Troubleshooting 132

Fishfinder Doesn’t Power Up ................................................................................ 132

Fishfinder Defaults to Simulator with a Transducer Attached ............................ 132

Display Problems.................................................................................................... 133

Finding the Cause of Noise .................................................................................. 134

300 Series™ Fishfinder Accessories 135

Specifications 136

Glossary 138

Contact Humminbird® 146

NOTE: Entries in this Table of Contents which list (International Only) are only available on products sold outside of the U.S. by our authorized international distributors. To obtain a list of authorized international distributors, please visit our Web site at humminbird.com or contact our Customer Resource Center at

(334) 687-6613.

NOTE: Entries in this Table of Contents which list (with Temp/Speed only) require

the purchase of separate accessories. You can visit our Web site at humminbird.com to order these accessories online or contact our Customer Resource Center at 1-800-633-1468.

NOTE: Some features discussed in this manual require a separate purchase, and some features are only available on international models. Every effort has been made to clearly identify those features. Please read the manual carefully in order to understand the full capabilities of your model.

viii

Power On

Follow the instructions below to power on your Humminbird® control head.

385ci Combo Title Screen

1. Press the POWER/LIGHT key.

2. When the Title screen is displayed, press the MENU key to access the Start-Up Options Menu.

3. Use the 4-WAY Cursor Control key to select Normal (if there is a transducer attached to the control head), or Simulator (if there isn’t a transducer attached to the control head).

NOTE: See Start-Up Options Menu for more information.

• If a functioning transducer is connected, Normal operation will be

selected automatically at power up, and your Fishfinder can be used on the water.

• If a transducer is not connected and you wait too long to select a

Start-Up Option, the system will default to whichever menu is already highlighted.

• In Simulator you can learn how to use your control head and save settings in advance for later use.

Power On

How Sonar Works

Sonar technology is based on sound waves. The 300 Series™ Fishfinder uses sonar to locate and define structure, bottom contour and composition, as well as depth directly below the transducer.

Your 300 Series™ Fishfinder sends a sound wave signal and determines distance by measuring the time between the transmission of the sound wave and when the sound wave is reflected off of an object; it then uses the reflected signal to interpret location, size, and composition of an object.

Sonar is very fast. A sound wave can travel from the surface to a depth of 240 ft (70 m) and back again in less than 1/4 of a second. It is unlikely that your boat can “outrun“ this sonar signal.

SONAR is an acronym for SOund and NAvigation Ranging. Sonar uses precision sound pulses or “pings“ which are emitted into the water in a teardrop-shaped beam.

The sound pulses “echo“ back from objects in the water such as the bottom, fish, and other submerged objects. The returned echoes are displayed on the LCD screen. Each time a new echo is received, the old echoes are moved across the LCD, creating a scrolling effect.

How Sonar Works

When all the echoes are viewed side by side, an easy to interpret “graph“ of the bottom, fish, and structure appears.

The sound pulses are transmitted at various frequencies depending on the application. Very high frequencies (455 kHz) are used for greatest definition but the operating depth is limited. High frequencies (200 kHz) are commonly used on consumer sonar and provide a good balance between depth performance and resolution. Low frequencies (83 kHz) are typically used to achieve greater depth capability.

The power output is the amount of energy generated by the sonar transmitter. It is commonly measured using two methods:

• Root Mean Square (RMS) measures power output over the entire transmit cycle.

• Peak to Peak measures power output at the highest points.

The benefits of increased power output are the ability to detect smaller targets at greater distances, ability to overcome noise, better high speed performance and enhanced depth capability.

How Sonar Works

DualBeam PLUS™ Sonar

(DualBeam PLUS™ models only [385ci])

Your 385ci Fishfinder uses a 200/83 kHz DualBeam PLUS™ sonar system with a wide (60°) area of coverage. DualBeam PLUS™ sonar has a narrowly focused 20° center beam, surrounded by a second beam of 60°, expanding your coverage to an area equal to your depth. In 20 feet of water, the wider beam covers an area 20 feet wide.

DualBeam PLUS™ sonar returns can be blended together, viewed separately, or compared sideby-side. DualBeam PLUS™ is ideal for a wide range of conditions - from shallow to very deep water in both fresh and salt water. Depth capability is affected by such factors as boat speed, wave action, bottom hardness, water conditions and transducer installation.

How Sonar Works

Down Imaging™ Sonar

75 Degree Total Coverage

16°

75°

25°

455kHz

200kHz

455kHz

45°

800kHz

(Down Imaging™ models only [385ci DI])

Your 385ci DI Fishfinder uses Down Imaging™ technology. The Down Imaging™ transducer scans the water with razor-thin, high-definition beams. The beams are wide (side to side) but very thin front to back.

The Down Imaging™ beams can be operated at two frequencies: 455 kHz (75°) or 800 kHz (45°). Select 455 kHz for the best overall image quality and depth. Select 800 kHz for the sharpest image. See Sonar Menu Tab: Imaging Frequency for more information.

The transducer also uses conical beams to provide data in traditional 2D format (see What’s on the Sonar Display). Select 455 kHz for a narrowly focused 16° center beam, or select 200 kHz for a wider 25° beam (see Sonar Menu Tab: Beam Select).

Depth capability is affected by such factors as boat speed, wave action, bottom hardness, water conditions, and transducer installation.

How Sonar Works

Ice transducer

Dual Beam Ice Transducer

(optional-purchase XI 9 20 Ice Transducer only)

Your Fishfinder supports the optionalpurchase XI 9 20 Ice Transducer which provides selectable dual-frequency sonar with a wide area of coverage. Selectable dual-frequency gives you the option of two beams, and both beams will cover the bottom and provide high definition. The 20 degree center beam provides the highest definition, while the 60 degree beam provides wider coverage. Depth capability is affected by such factors as bottom hardness and water conditions. Whether fishing in shallow to very deep water, selectable dual-frequency is ideal for a variety of conditions.

How Sonar Works

How GPS Works

Your 300 Series™ Fishfinder also supports GPS (Global Positioning System) and chartplotting. It uses GPS and sonar to determine your position, display it on a grid, and provide detailed underwater information.

GPS uses a constellation of satellites that continually send radio signals to the earth. The GPS receiver on your boat receives signals from satellites that are visible to it. Based on time differences between each received signal, the GPS receiver determines its distance to each satellite. With distances known, the GPS receiver mathematically triangulates its own position. With once per second updates, the GPS receiver then calculates its velocity and bearing.

GPS was originally intended for military use; however, civilians may also take advantage of its highly accurate position capabilities, typically within +/- 4.5 meters, depending on conditions. This means that 95% of the time, the GPS receiver will read a location within 4.5 meters of your actual position. Your GPS Receiver also uses information from WAAS (the Wide Area Augmentation System), EGNOS (the European Geostationary Navigation Overlay Service), and MSAS (the MTSAT Satellite Augmentation System) satellites if they are available in your area.

The following GPS functionality is currently supported by the 300 Series™ Fishfinder when it is connected to the included GPS receiver:

• View current position

• View current track (breadcrumb trail)

• View precision speed and heading from your GPS receiver

• Save tracks, waypoints, and routes

• Travel a route and navigate from one waypoint to the next.

See Chart View and Introduction to Navigation: Add Maps to Your Fishfinder for more information.

How GPS Works

What’s on the Sonar Display

The 300 Series™ Fishfinder can display a variety of useful information about

Depth - Water depth; can be set to alarm when the water becomes too shallow.

Temperature - Water surface temperature.

Timer - Elapsed time with Temp/Speed

Accessory or GPS Receiver.

Distance - Distance traveled with Temp/Speed Accessory or GPS Receiver.

Average Speed - Average speed reading with Temp/Speed Accessory or GPS Receiver.

Speed - If a Temp/Speed accessory or GPS Receiver is connected, the Fishfinder can display the speed of the boat and can keep a Triplog of nautical or statute miles traveled.

Second Sonar Return - When the sonar signal bouncesbetweenthe bottomand thesurfaceofthe water and back again. Use the appearance of the second return to determine bottom hardness. Hard bottomswillshow a strongsecond return, whilesoft bottoms will showa very weakone or none at all.

Cursor Dialog Box - Indicates cursor depth on the display and the depth of the bottom directly below the cursor. The Latitude and Longitude of the cursor position, the distance to travel to the cursor position, and the bearing to the cursor position are shown with a GPS receiver. A waypoint can be marked at the cursor position for later retrieval and use with a GPS receiver.

NOTE: Entries in this view that list (with Temp/Speed or GPS Receiver) are available if either the information from the GPS receiver will be displayed on the view.

What’s on the Sonar Display

the area under your boat, including the following items:

High Sonar Intensity Return

Bait Ball

Fish - The Fishfinder displays fish as arches

and/or fish icons, and can be set to alarm when a fish of a certain size is detected. When a target is detected, a Fish ID+™ symbol appears on the display with the depth displayed above it. The size of the symbol indicates the intensity of the sonar return. The unit will clearly show schools of Bait Fish as "clouds" of different shapes and sizes, depending on the number of fish and boat speed.

Thermoclines - Layers of water with different temperatures that appear at different depths and different times of the year. A thermocline typically appears as a continuous band of many colors moving across the display at the same depth.

Cursor - Available in Freeze Frame and can be positioned in the Sonar View to provide depth ofa sonar return andbottom depthbelow the cursor.

RTS (Real Time Sonar) Window™

Structure - Where fish may be hiding.

Low Sonar Intensity Return

device is connected to the 300 Series™ Fishfinder. If both devices are connected, then only

What’s on the Sonar Display

Understanding the Sonar Display

It is important to understand the significance of the display. The display does not show a literal 3-dimensional representation of what is under the water. Each vertical band of data received by the control head and plotted on the display represents something that was detected by a sonar return at a particular time. As both the boat and the targets (fish) may be moving, the returns are only showing a particular segment of time when objects were detected, not exactly where those objects are in relation to other objects shown on the display.

The returned sonar echoes are displayed on the screen. As a new echo is received, the historical data scrolls left across the view.

Real Time Sonar (RTS™) Window

A Real Time Sonar (RTS™) Window appears on the right side of the display in the Sonar View only. The RTS Window™ updates at the fastest rate possible for depth conditions and shows only the returns from the bottom, structure, and fish that are within the transducer beam. The RTS Window™ plots the depth and intensity of a sonar return (see Sonar Menu Tab: RTS Window™).

The Narrow RTS Window indicates the sonar intensity through the use of colors. Red indicates a strong return and blue indicates a weak return. The depth of the sonar return is indicated by the vertical placementofthe return on the display depth scale.

What’s on the Sonar Display

™

The Wide RTS Window indicates the sonar intensity through the use of a bar graph. The length of the plotted return indicates whether the return is weak or strong. The depth of thesonar return is indicated by the vertical placement of the return on the display depth scale. The Wide RTS Window™ does not use grayscale.

™

SwitchFire™

SwitchFire™ controls how the sonar returns are displayed in the Sonar Views. SwitchFire™ settings are available in the Sonar Menu Tab.

To see the maximum sonar information available within the transducer beam so more fish arches and better jig tracking are shown, choose Max Mode.

To see less clutter and more fish size accuracy interpreted from the transducer beam, choose Clear Mode. See Sonar Menu Tab: SwitchFire™ for more information.

Freeze Frame and Active Cursor

Freeze Frame & Active Cursor - Press any arrow on the 4-WAY Cursor Control key, and the screen will freeze and a cursor will be displayed. Use the 4-WAY Cursor Control key to move the cursor over a sonar return, and the depth of the sonar return will be displayed at the bottom of the screen in the cursor dialog box.

The RTS Window™ continues to update in Freeze Frame. To return to a scrolling display and exit Freeze Frame, press the EXIT key. Freeze Frame is available in the Sonar, Split Sonar, and Sonar Zoom Views.

Instant Image Update

Instant Image Update - You can change a variety of sonar menu settings (such as Sensitivity or Upper Range), and the adjustments will be shown instantly on the screen.

What’s on the Sonar Display

Bottom Presentation

As the boat moves, the unit charts the changes in depth on the display to create a profile of the Bottom Contour. The type of bottom can be determined from the return charted on the display. A Hard Bottom such as compacted sediment or flat rock appears as a thinner line across the display. A Soft Bottom such as mud or sand appears as a thicker line across the display. Rocky Bottoms have a broken, random appearance.

Bottom Contour Profile with RTS Window™

Rocky Bottom

Soft Bottom

Hard Bottom

The sonar returns from the bottom, structure, and fish can be represented as WhiteLine™ or Structure ID®. See Sonar Menu Tab: Bottom View to set the bottom view.

What’s on the Sonar Display

Structure ID® represents weak returns in blue and strong returns in red.

WhiteLine™ highlights the strongest sonar returns in white, resulting in a

distinctive outline. This has the benefit of clearly defining the bottom on the display.

What’s on the Sonar Display

What’s on the Down Imaging™ Display

Down Imaging™ uses its unique transducer and sonar technology to provide profiling beams produce the detailed sonar data that you see on the display. interpret the structure and bottom contour, including the following items:

Depth - (water depth) can be set to alarm when the water becomes too shallow.

Temperature - Water surface temperature.

BottomReturn-Usetheappearanceofthebottom

return to determine bottom hardness. Rock and gravel provide a clearer sonar return than mud and sand because hard objects reflect sonar better than soft objects.

Topography Changes - The light part of the display shows where the beam is hitting hard bottom or rising terrain. The dark part of the display indicates soft bottom (sand, mud) or descending terrain.

Speed - If a GPS Receiver or Temp/Speed accessory is connected, the Fishfinder can display the speed of the boat and can keep a Triplog of nautical or statute miles traveled.

NOTE: Entries in this view that list (with Temp/Speed or GPS Receiver) are available if either the information from the GPS receiver will be displayed on the view.

What’s on the Down Imaging™ Display

(Down Imaging™ models only [385ci DI])

informationabout the area directlybelow your boat. The razor-thin, high- definition Down Imaging™ reveals a variety of recognizable features so that you can

Upper Range

Clouded Area may indicate a bait ball and White Streaks may indicate fish.

Structure

Shadows-Result from a lack of reflected sonar

from a particular area and can be as valuable for interpretation than the sonar reflected by the object itself. Use shadows to help you see the image in 3 dimensions, oriented in space. You can gain insight into the actual shape of an object, or the depth to which it has sunk into the bottom, through shadows on the display. Objects standing on the bottom cast a sonar shadow. The longer the shadow, the taller the object. Fish also cast shadows. You can use the shadow to interpret how close the fish is to the bottom.

Lower Range

device is connected to the 300 Series™ Fishfinder. If both devices are connected, then only

What’s on the Down Imaging™ Display

Understanding the Down Imaging™ Display

The images you see on the Down Imaging™ display are produced using sonar technology. Each time the unit pings, a strip of data representing all the echoes received by the transducer are put together on the display to form the image that you see. Like traditional 2D Sonar, the sonar history scrolls left across the screen.

Interpreting the Display

Down Imaging™ beams “illuminate” the bottom contour, structure, and fish. The beams are wide (side to side) but very thin front to back.

Use the light and dark parts of the display to interpret the objects under your boat as follows:

• Dark shades represent soft returns (mud, sand) or descending terrain.

• Light shades represent denser terrain (timber, rocks) or rising terrain. A very hard bottom may appear as white on the display.

• White Streaks or Clouds may represent fish on the display.

• Shadows are not caused by light but by the lack of a sonar return. Objects standing on the bottom cause a sonar shadow to appear on the display. The longer the shadow, the taller the object. Fish may also cast shadows. You can use the shadow to interpret where the fish or object is located in relation to the bottom.

What’s on the Down Imaging™ Display

Down Imaging™ Sensitivity

Use Imaging Sensitivity to control how the sonar returns appear on the display. Increase the sensitivity to reveal weaker returns that may be of interest, especially in very clear water or greater depths. Decrease the Imaging Sensitivity to eliminate the clutter from the display that is sometimes present in murky or muddy water. See Imaging Sensitivity for more information.

Freeze Frame and Active Cursor

Freeze Frame and Active Cursor - Press any arrow on the 4-WAY Cursor Control key, and the screen will freeze and a cursor will be displayed. Use the 4-WAY Cursor Control key to move the cursor over a sonar return, and the depth of the sonar return will be displayed in the cursor dialog box.

What’s on the Down Imaging™ Display

Views

The sonar and navigation information from your Fishfinder is displayed on your screen in a variety of easy-to-read views. There are many views available on your Fishfinder.

• Default View: When you first power up the 385ci control head, Sonar View will be the default view. When you first power up the 385ci DI control head, the Chart/Down Imaging™ Combo View will be the default view.

• Cycle: When you press the VIEW key repeatedly, the display cycles through the available views on your screen. When you press the EXIT key, the display cycles through the available views in reverse order.

• Customize: You can display or hide any view to suit your fishing preferences. See the following pages for more information about each View.

NOTE: When you change any menusettingsthat affect the sonar, the view willupdate immediately. You don't have to exit the menu to apply the change to the screen.

Views

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