Humminbird 858cx HD XD Combo, 858c HD DI Combo, 998c HD SI Combo, 898c HD SI Combo, 958c HD DI Combo Owner's Manual

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Humminbird 858cx HD XD Combo, 858c HD DI Combo, 998c HD SI Combo, 898c HD SI Combo, 958c HD DI Combo Owner's Manual

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 Warranty section in this manual. We encourage you to read this installation and 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 either 1-800-633-1468 or visit our Web site at humminbird.com.

WARNING! The electronic chart in your Humminbird® unit is an aid to navigation designed to facilitate the use of authorized government charts, not to replace them. Only official government charts and notices to mariners contain all of the current information needed for the safety of navigation, and the captain is responsible for their prudent use.

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 unauthorizedindividuals 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 at high speed with the unit cover installed. 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 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.

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.

800 Series™, 900 Series™, Cannon®, CannonLink™, Contour XD™, Down Imaging™, DualBeam PLUS™, Fish ID+™, HumminbirdPC™,Humminbird®,InterLink™,One-Touch®Zoom, QuadraBeam PLUS™, RTS Window™, Side Imaging®, SmartCast®, SwitchFire™, Structure ID®, Total Screen Update™, UniMap™, WeatherSense®,WhiteLine™, and X-Press™ Menu are trademarked by or registeredtrademarksof Humminbird®.

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

Navionics®Gold, HotMaps™,and HotMaps™Premium,Navionics®Classic Charts, and Platinum™ Cartographyare trademarkedby or registeredtrademarksof Navionics®.

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

Introduction	1
How Sonar Works ....................................................................................................................	1
High Definition Side Imaging® Sonar (898c SI and 998c SI only) ..........................................	3
DualBeam PLUS™ Sonar (858c, 898c SI, 958c, 998c SI) ........................................................	3
Down Imaging™ Sonar (858c DI and 958c DI only, XNT 9 DI T)..............................................	4
QuadraBeam PLUS™ Sonar (optional-purchase QuadraBeam PLUS™ transducer only
[858c, 958c, 898c SI, and 998c SI only])................................................................................	4
Universal Sonar 2....................................................................................................................	5
How GPS and Cartography Work............................................................................................	5
Fishing System Configuration.................................................................................................	6
Accessory Bus ........................................................................................................................	6
Video-Out and RS 232 Connectors..........................................................................................	7
Ethernet Connector ................................................................................................................	7
Power On the Control Head	8
What’s on the Control Head	8
Key Functions	9
POWER/LIGHT Key..................................................................................................................	9
VIEW Key .................................................................................................................................	9
MENU Key ...............................................................................................................................	9
4-WAY Cursor Control Key (RIGHT,LEFT, UP,or DOWN Cursor Keys) ................................	10
VIEW PRESET Keys ..............................................................................................................	10
EXIT Key ................................................................................................................................	10

INFO Key ................................................................................................................................	11
MARK Key................................................................................................................................	11
GOTO Key ................................................................................................................................	11
ZOOM (+/-) Keys ....................................................................................................................	11
SD Memory Card Slots	12
Add Maps to Your Fishing System ........................................................................................	12
Update Software ....................................................................................................................	13
Export Navigation Data ..........................................................................................................	13
What’s on the Sonar Display	14
Understanding the Sonar Display..........................................................................................	15
Real Time Sonar (RTS™) Window ........................................................................................	15
SwitchFire™ ............................................................................................................................	15
Freeze Frame and Active Cursor ............................................................................................	16
Instant Image Update ............................................................................................................	16
Sonar Bottom Presentation....................................................................................................	16
What’s on the Side Imaging® Display (898c SI and 998c SI only)	17
Understanding the Side Imaging® Display ..........................................................................	18
Side Imaging® Frequencies and Coverage............................................................................	19
For Best Performance ............................................................................................................	20
On the Water Interpretation ..................................................................................................	21

ii	531743-2EN_A

Table of Contents

What’s on the Down Imaging™ Display
(858c DI, 958c DI, 898c SI, and 998c SI Combo models only)	23
Understanding the Down Imaging™ Display ......................................................................	24
Interpreting the Display ........................................................................................................	24
Down Imaging™ Sensitivity.................................................................................................	24
Freeze Frame and Active Cursor ..........................................................................................	24
Views	25
Side Imaging® View (898c SI and 998c SI only) ....................................................................	26
Down Imaging™ View (858c DI, 958c DI, 898c SI and 998c SI only) ....................................	28
Sonar View..............................................................................................................................	30
Sonar Zoom View..................................................................................................................	31
Split Sonar View ..................................................................................................................	32
Snapshot and Recording View (optional-purchase SD card required) ..................................	33
Side Beam View (optional-purchase QuadraBeam PLUS™ transducer required
[858c, 958c, 898c SI, and 998c SI])......................................................................................	38
Bird’s Eye View......................................................................................................................	40
Chart View ..............................................................................................................................	41
Combo Views ..........................................................................................................................	42
Combo Views: Functions .......................................................................................................	42
Side Imaging®/Sonar Combo View (898c SI and 998c SI only) ............................................	42
Chart/Bird’s Eye Combo View...............................................................................................	43
Chart/ChartCombo View .....................................................................................................	43
Chart/Sonar Combo View .....................................................................................................	44
Chart/Side Imaging® Combo View (898c SI and 998c SI only)..............................................	44
Down Imaging™/Side Imaging® Combo View (898c SI and 998c SI only) ..........................	45

Chart/Down Imaging™ Combo View (858c DI, 958c DI, 898c SI and 998c SI only) ............	45
Down Imaging™/Sonar Combo View (858c DI, 958c DI, 898c SI, and 998c SI only) ..........	46
Down Imaging™/Side Imaging®/Sonar Combo View (898c SI and 998c SI only) ..............	46
Chart Orientation ....................................................................................................................	47
ViewingCartography	47
Introduction to Navigation	49
Waypoints, Routes, and Tracks..............................................................................................	49
Save, Edit, or Delete a Waypoint ..........................................................................................	50
Navigate to a Waypoint or Position ......................................................................................	51
Add a Waypoint Target or Trolling Grid ................................................................................	51
Save, Edit or Delete a Route ..................................................................................................	52
Save or Clear a Current Track ................................................................................................	52
Edit, Delete, or Hide Saved Tracks ........................................................................................	53
Man Overboard (MOB) Navigation........................................................................................	54
The Menu System	55
Start-Up Options Menu	55
Normal ....................................................................................................................................	55
Simulator ................................................................................................................................	56
System Status ........................................................................................................................	56
Self Test ..................................................................................................................................	56
Accessory Test ........................................................................................................................	57
GPS Diagnostic View ..............................................................................................................	57

iii

Table of Contents

X-Press™ Menu	58
Main Menu	58
Quick Tips for the Main Menu ..............................................................................................	59
Note for all Menu Settings ...................................................................................................	59
User Mode (Normal or Advanced)........................................................................................	60
Sonar X-Press™ Menu	61
Active Side (Combo Views only)..............................................................................................	61
Split Position (Combo Views only) ..........................................................................................	61
Sensitivity ...............................................................................................................................	62
Upper Range (Advanced: Sonar, Split Sonar and Active Sonar Side Views only) ..................	62
Lower Range .........................................................................................................................	63
Chart Speed ............................................................................................................................	63
Quad Layout
(with optional-purchase QuadraBeam PLUS™ Transducer, Side Beam View only) ............	63
Bottom Lock (Sonar Zoom View only) ....................................................................................	64
Bottom Range (Sonar Zoom View only, when Bottom Lock is On) ........................................	64
Cancel Navigation (only when Navigating) ............................................................................	64
Side Imaging® X-Press™ Menu
(Side Imaging® Views only [898c SI, 998c SI])	65
Active Side (Combo Views only)..............................................................................................	65
Split Position (Combo Views only) ..........................................................................................	65
SI Side......................................................................................................................................	66

SI Sensitivity............................................................................................................................	66
SI Enhance ..............................................................................................................................	66
SI Range ..................................................................................................................................	67
Chart Speed ............................................................................................................................	67
SI Colors ..................................................................................................................................	67
Down Imaging™ X-Press™ Menu
(Down Imaging™ Views only [858c DI, 958c DI, 898c SI, 998c SI])	68
Active Side (Combo Views only)..............................................................................................	68
Split Position (Combo Views only) ..........................................................................................	68
Down Sensitivity (898c SI, 998c SI) ........................................................................................	69
Imaging Sensitivity (858c DI, 958c DI)....................................................................................	69
Upper Range (Advanced: Down Imaging™ Views only) ........................................................	69
Lower Range ..........................................................................................................................	70
Chart Speed ............................................................................................................................	70
SI Colors (898c SI, 998c SI)......................................................................................................	70
Imaging Colors (858c DI, 958c DI) ..........................................................................................	70
Cancel Navigation (only when Navigating) ............................................................................	71
Navigation X-Press™ Menu	71
Active Side (Combo Views only)..............................................................................................	72
Split Position (Combo Views only) ..........................................................................................	72
Waypoint [Name] (Only with an active cursor on a waypoint) ..............................................	72
Cursor to Waypoint (Chart or Combo View only)....................................................................	73
Save Current Track..................................................................................................................	73

Table of Contents

Clear Current Track ...............................................................................................................	73
Save Current Route (only when Navigating) ..........................................................................	73
Skip Next Waypoint (only when Navigating)..........................................................................	73
Cancel Navigation (only when Navigating) ............................................................................	73
Cancel MOB Navigation (only when MOB Navigation is activated) ......................................	74
Remove Target (only if a Target is Active) ..............................................................................	74
Remove Grid (only if a Grid is Active) ......................................................................................	74
Waypoint [Name] (Most recently-created waypoint)..............................................................	74
Snapshot and Recording X-Press™ Menu
(Snapshot and Recording View only)	75
Start Recording
(optional-purchaseSD Card, Snapshot and Recording View only) ......................................	75
Stop Recording (optional-purchase SD Card only)..................................................................	75
Delete Image (optional-purchase SD Card, Snapshot and Recording View only) ..................	75
Delete All Images
(optional-purchaseSD Card, Snapshot and RecordingView only) ......................................	76
Delete Recording
(optional-purchaseSD Card, Snapshot and RecordingView only) ......................................	76
Delete All Recordings
(optional-purchaseSD Card, Snapshot and RecordingView only) ......................................	76
Pings Per Second
(optional-purchaseSD Card, Snapshot and Recording View only) ......................................	76
Playback Speed
(optional-purchaseSD Card, Snapshot and RecordingView only) ......................................	76
Stop Playback (optional-purchaseSD Card only) ....................................................................	77

Alarms Menu Tab	78
Depth Alarm............................................................................................................................	78
Fish ID Alarm ..........................................................................................................................	78
Low Battery Alarm..................................................................................................................	79
Aux. Temp Alarm (with optional-purchase temp. probe or Temp/Speed only) ......................	79
Temp. Alarm ............................................................................................................................	79
Off Course Alarm ....................................................................................................................	79
Arrival Alarm............................................................................................................................	80
Drift Alarm ..............................................................................................................................	80
Alarm Tone ..............................................................................................................................	80
Sonar Menu Tab	81
Beam Select ............................................................................................................................	81
Side View Frequency (898c SI and 998c SI only) ..................................................................	82
Imaging Frequency (858c DI and 958c DI only)......................................................................	82
Surface Clutter ........................................................................................................................	83
SwitchFire™ ............................................................................................................................	83
Fish ID+™................................................................................................................................	84
Fish ID Sensitivity....................................................................................................................	84
Real Time Sonar (RTS™) Window ........................................................................................	85
Sonar Colors ............................................................................................................................	85
Bottom View............................................................................................................................	85
Zoom Width (Sonar Zoom View only)......................................................................................	86

Table of Contents

83 kHz Sensitivity (Advanced, DualBeam PLUS™ Sonar only) ..............................................	86
455 kHz Sensitivity (Advanced, Down Imaging™ Views only [858c DI, 958c DI])..................	86
455 kHz Sensitivity(Advanced, with optional purchase QuadraBeam PLUS™ transducer)....	86
Depth Lines (Advanced) ..........................................................................................................	87
SI Range Lines (Advanced, Side Imaging® View only)............................................................	87
Noise Filter (Advanced)............................................................................................................	88
Max Depth (Advanced)............................................................................................................	88
Water Type (Advanced) ..........................................................................................................	88
Transducer Select..................................................................................................................	89
Color Bar................................................................................................................................	89
Temperature Graph (Sonar View only, with Temperatureinput) ............................................	89
Imaging Colors (858c DI and 958c DI only) ............................................................................	89
Down Imaging™ Beam Width (Advanced, 898c SI and 998c SI only)..................................	89
Navigation Menu Tab	90
Current Track .........................................................................................................................	90
Saved Tracks............................................................................................................................	91
Waypoints...............................................................................................................................	91
Routes......................................................................................................................................	92
Chart Orientation ..................................................................................................................	92
North Reference....................................................................................................................	92
Waypoint Decluttering (Advanced) ........................................................................................	92
Trolling Grid Rotation ..............................................................................................................	93
Trackpoint Interval ................................................................................................................	93

Track Min Distance (Advanced) ..............................................................................................	93
Track Color Range ..................................................................................................................	93
Map Datum (Advanced) ..........................................................................................................	93
Course Projection Line............................................................................................................	94
3D View Outline ......................................................................................................................	94
Export All Nav Data (Advanced)..............................................................................................	94
Delete All Nav Data (Advanced) ............................................................................................	94
Continuous Navigation Mode................................................................................................	94
GPS Receiver Override (Advanced) ........................................................................................	94
SI Navigation (Side Imaging® models only [898c SI and 998c SI])..........................................	94
Chart Menu Tab	95
Lat/Lon Grid ............................................................................................................................	95
Navaids on Bird’s Eye View....................................................................................................	95
Chart Select ............................................................................................................................	95
Set Simulation Position (Advanced) ......................................................................................	96
Set Map Offset (Advanced) ....................................................................................................	96
Clear Map Offset (Advanced)..................................................................................................	96
Shaded Depth ........................................................................................................................	96
Chart Detail Level (optional-purchase Navionics® charts only) ..............................................	96
Map Borders............................................................................................................................	97
Spot Soundings (optional-purchase Navionics® charts only)..................................................	97
Contour Lines (optional-purchase LakeMaster® charts only) ..................................................	98
Depth Colors (optional-purchase LakeMaster® charts only)....................................................	98

Table of Contents

Depth Highlight (optional-purchase LakeMaster® charts only) ..............................................	98
Depth Highlight Range (+/-) (optional-purchase LakeMaster® charts only)..........................	98
Water Level Offset (optional-purchase LakeMaster® charts only) ..........................................	98
Shallow Water Highlight (optional-purchase LakeMaster® charts only)................................	99
Lake List (optional-purchase LakeMaster® charts only) ..........................................................	99
Setup Menu Tab	100
Units - Depth ........................................................................................................................	100
Units - Temp (International only) ..........................................................................................	100
Units - Distance (with Speed input only) ..............................................................................	100
Units - Speed (with Speed input only) ..................................................................................	101
User Mode ............................................................................................................................	101
Language (International only)................................................................................................	101
Triplog Reset (with Speed input only) ..................................................................................	101
Restore Defaults....................................................................................................................	101
Select Readouts (Advanced) ................................................................................................	102
Depth Offset (Advanced) ......................................................................................................	103
Aux. Temp Offset (Advanced)................................................................................................	103
Temp. Offset (Advanced) ......................................................................................................	103
Speed Calibration (Advanced, with Speed paddlewheel only) ............................................	103
Local Time Zone (Advanced) ................................................................................................	103
Daylight Saving Time (Advanced) ........................................................................................	103
Position Format (Advanced) ..................................................................................................	103
Time Format (Advanced, International only)..........................................................................	104

Date Format (Advanced, International only)..........................................................................	104
Digits Format (Advanced) ......................................................................................................	104
NMEA Output (Advanced) ....................................................................................................	104
Sonar......................................................................................................................................	105
Demonstration ......................................................................................................................	105
Sound Control ......................................................................................................................	105
Video Out ..............................................................................................................................	105
Views Menu Tab	105
Accessories Menu Tab	106
Screen Snapshot (optional-purchase SD Cards only)............................................................	106
AIS (optional-purchase AIS equipment only) ........................................................................	107
Troubleshooting	110
Fishing System Doesn’t Power Up ......................................................................................	110
Fishing System Defaults to Simulator with a Transducer Attached ................................	110
Display Problems ..................................................................................................................	111
Finding the Cause of Noise..................................................................................................	112
1-Year Limited Warranty	113
Humminbird® Service Policy	113
Fishing System Accessories	115

vii

Table of Contents

Specifications	116
Glossary	120
Appendix A
Side Imaging® Transducer Mounting Template(XHS 9 HDSI 180 T)	125
Contact Humminbird®	126

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: Some of the entries in this Table of Contents may 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.

viii

Introduction

Your Humminbird® Fishing System comes in several different configurations. See the following list of products, all of which are covered by this manual, to find your 800/900 Series™ configuration:

•Humminbird® 858c Combo: Wide screen Fishing System with DualBeam PLUS™ Sonar and Chartplotting. GPS Receiver included.

•Humminbird® 858c DI Combo: Wide screen Fishing System with Down Imaging™ Sonar, Traditional 2D Sonar, and Chartplotting. GPS Receiver included.

•Humminbird® 898c SI Combo: Wide screen Fishing System with Side Imaging® Sonar, DualBeam PLUS™ Sonar, Down Imaging™ Sonar, and Chartplotting. GPS Receiver included.

•Humminbird® 958c Combo: Ultra wide screen Fishing System with DualBeam PLUS™ Sonar and Chartplotting. GPS Receiver included.

•Humminbird® 958c DI Combo: Ultra wide screen Fishing System with Down Imaging™ Sonar, Traditional 2D Sonar, and Chartplotting. GPS Receiver included.

•Humminbird® 998c SI Combo: Ultra wide screen Fishing System with Side Imaging® Sonar, DualBeam PLUS™ Sonar, Down Imaging™ Sonar, and Chartplotting. GPS Receiver included.

How Sonar Works

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

Your Fishing System 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 utilizes 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.

1	Introduction

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.

Introduction

86°	86°
455kHz	455kHz

20°

200kHz

60°

83kHz

High Definition

Side Imaging® Sonar

(898c SI and 998c SI only)

The 898c SI Combo and 998c SI Combo use Side Imaging® sonar to provide a wide yet precise survey of a large area of water, including detailed bottom topography and fish-attracting structure orientation. The Side Imaging® transducer returns are processed into an image similarto an aerial photograph.

Typically, the Side Imaging® sonar can search an area that is 480 feet wide (240 to each side), with a typical depth performance of 150 feet when the Side Imaging® Sonar frequency is set for 455 kHz. The side beams can be operated at one of two frequencies: 455 kHz or 800 kHz. Selecting 800 kHz produces the sharpest image, but the search area to each side and the depth capability are limited as compared to the 455 kHz frequency. See

What’s on the Side Imaging® Display and

Understanding Side Imaging® for more information.

The Side Imaging® transducer also provides down imaging displays on the screen. See What's on the Down Imaging™ Display for more information.

DualBeam PLUS™ Sonar

(858c, 898c SI, 958c, 998c SI)

The Fishing System 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 side-by-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.

3	Introduction

Down Imaging™ Sonar

(858c DI and 958c DI only, XNT 9 DI T)

Your 858c DI/958c DI Fishing System 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
75 Degree Total Coverage	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 Down Imaging™ X-Press™ Menu: Imaging Frequency for more information.

The transducer also uses conical beams to provide data in traditional 2D format (see

What’s on the Sonar View). 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.

35°	60°	20°	35°
455 kHz		200 kHz	455 kHz
		200 kHz

83 kHz

90° Total Coverage

Bottom Coverage = 2 x Depth

QuadraBeam PLUS™ Sonar

(optional-purchase QuadraBeam PLUS™

transducer only [858c, 958c, 898c SI, and

998c SI only])

Your Fishing System supports the optional-purchase QuadraBeam PLUS™ transducer. QuadraBeam PLUS™ sonar provides a wide (90°) area of coverage. QuadraBeam PLUS™ starts with two fan-shaped 35° 455 kHz Side Structure locating sonar beams to spot fish, bait, and structure to the left and right of the boat over an area of the bottom that’s always equal to twice your depth.

For a detailed view below the boat, QuadraBeam PLUS™ uses DualBeam PLUS™ technology, with precision 20° and wide 60° beams. QuadraBeam PLUS™ finds more fish faster, and can even tell you where to put your bait by showing if fish are to the left, right, or directly beneath your boat.

Introduction

Universal Sonar 2

Your Fishing System supports Universal Sonar 2, a state-of-th e-art, integrated and protected transducer that is built into the lower unit of Minnkota trolling motors. With Universal Sonar 2, all wiring is concealed inside the indestructible composite shaft—out of sight and out of harm’s way, with no clamps, ties, or exposed wires. Universal Sonar 2 features new temperature sensing and the performance of DualBeam PLUS™ technology. An expanded view and greater bottom detail gives you a totally new perspective of the water below, along with optimal sonar performance to help you find fish.

How GPS and Cartography Work

Your Fishing System 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 Fishing System 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 SD Memory Card Slots: Add Maps to Your Fishing System for more information.

5	Introduction

The Fishing System has a wide variety of configurations

	6
2	10

1	3	8
		8

	4	7
		9
	5
1	Video Out	Optional “Y” Cable	6
2	RS 232 Connector	GPS Receiver	7
3	Power	SmartCast® Wireless Sonar Link	8
4	Temperature	WeatherSense®	9
5	Speed	Sonar Transducer with Temperature	10

Fishing System Configuration

The Fishing System has a wide variety of configurations that will influence the installation. The accessory bus, video output, and RS 232 connectors allow you to expand your Fishing System capabilities. As you expand the configuration, the menu options that correspond with the connected accessory will be added to the menu system.

Please read all instructions that are relevant for your configuration before beginning the installation process. See the Humminbird® installation guide for details.

Accessory Bus

Use the Accessory Bus to expand the functionality of your Fishing System. Accessories plug directly into the Fishing System and enable advanced features such as WeatherSense®, SmartCast®, and the AS WX 1 Satellite Weather Receiver.

When an accessory is plugged into the Fishing Accessory Bus System, additional functions will be added to the menu system automatically. See Accessories Menu Tab and Fishing System Accessories in this manual. Also, see the accessory’s operations

manual for additional details.

NOTE: Accessories to enable WeatherSense®, SmartCast®, and the AS WX 1 Satellite Weather Receiver require separate purchases. Visit our Web site at humminbird.com or contact our Customer Resource Center at 1-800-633-1468 for details.

Introduction

Video-Out and RS 232 Connectors

Your unit has a built-in Video Out connector and a dual RS 232 connector, which can be used with optional-purchase equipment such as AIS (Automatic Identification System). If you purchase a video monitor and attach it to your control head using the Video Out connector, your unit will send a video signal if it detects a monitor. See Setup Menu Tab: Video Out for more information.

Ethernet Connector

Your unit has a built-in Ethernet connector so that you can network two Humminbird® units. When you connect the units together using the optional-purchase Humminbird® Ethernet cable, data is shared across the two units and additional menu options are added to the Menu System. See the Ethernet Operations Manual for details.

NOTE: The Ethernet cable requires a separate purchase. Visit our Web site at humminbird.com or contact our Customer Resource Center at 1-800-633-1468 for details.

1	RS 232	Temp/Speed	4
2	Video Output	Communications/GPS	5
3	Power	Transducer	6

NOTE: Accessories connected to the RS 232 or Video-Out connectors require a separate power source.

NOTE: To purchase a connection cable for an optional-purchase AIS, visit our Web site at humminbird.com or contact our Customer Resource Center at 1-800-633-1468.

7	Introduction

Power On the Control Head

Press the POWER/LIGHT key to power on your Humminbird® control head. When the Title screen is displayed, press the MENU key to access the Start-Up Options Menu. 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).

998c SI Combo Title Screen

NOTE: If a functioning transducer is connected, Normal will be selected automatically at power up, and your Fishing System can be used on the water. Select Simulator to learn how to use your control head and save settings in advance for later use. See Start-Up Options Menu for more information.

What’s on the Control Head

Your Fishing System user interface is easy to use. A combination of keys, different views, and situation-specific, customizable menus allows you to control what you see on the color display. Refer to the following illustration, and see Key Functions, Views, and The Menu System for more information.

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1	Screen		Menu Key	7
2	ZOOM (+/-) Keys		GOTO Key	8
3	View Key		Exit Key	9
4	4-Way Cursor Control Key		VIEW PRESET Keys	10
5	Info Key*		Power/Light Key	11
6	MARK Key		SD Card Slot	12

*Your control head will have one of the INFO keys shown here . Both keys function in the same way.

The Control Head

Key Functions

Your Fishing System has a set of easy to use keys that give you flexibility and control over your fishing experience.

POWER/LIGHT Key

The POWER/LIGHT key is used to power the Fishing System on and off. You can also use the POWER/LIGHT key to adjust the backlight and contrast of the display.

Power On the control head: Press the POWER/LIGHT key to power on the unit. When the Title screen is displayed, press the MENU key to access the Start-Up Options Menu.

Power Off the control head: Press and hold the POWER/LIGHT key for 3 seconds. A message will appear to indicate how many seconds there are until shutdown occurs. To ensure that shutdown occurs properly and any menu settings will be saved, your Fishfinder should always be turned off using the POWER/LIGHT key.

Adjust the Backlight or the Display Background Color: Press the POWER/LIGHT key to access the Light and Background submenu. Use the 4-WAY Cursor Control key to select Light or Background, and then use the LEFT or RIGHT Cursor key to change the settings. Press EXIT to exit the Light and Background submenu.

NOTE: Your control head will start up with the backlight on and will automatically turn it off to conserve power.

VIEW Key

The VIEW key is used to cycle through all available views. Press the VIEW key to advance to the next view. Press the VIEW key repeatedly to cycle through all available views. Views can be hidden to optimize the system to your fishing requirements (see Views or View Menu Tab).

MENU Key

The MENU key is used to access the menu system. See The Menu System for more information.

Start-Up Options Menu: Press the MENU key during the power up sequence to view the Start-Up Options menu.

X-Press™ Menu: Press the MENU key once in any view to access the X- Press™ Menu, which provides frequently-used menu settings that correspond with the current view or navigation mode.

Main Menu: Press the MENU key twice in any view to access the Main Menu, which is organized under tabbed headings to help you find a specific menu item quickly.

9	Key Functions

4-WAY Cursor Control Key

(RIGHT, LEFT, UP, or DOWN Cursor Keys)

The 4-WAY Cursor Control key has multiple functions, which depend on the view, menu, or situation.

•Menu Selection: Press the DOWN or UP Cursor keys to highlight a menu option, then press the RIGHT or LEFT Cursor keys to change a menu setting. The changes will be activated and saved immediately.

•Freeze Frame: In Sonar View, Side Imaging® View, and Down Imaging™ View press any arrow on the 4-WAY Cursor Control key to freeze the display and move the active cursor to a location on the screen. A cursor dialog box will display to show the depth of the location you choose.

•Active Cursor: Press any arrow on the 4-WAY Cursor Control key, and the active cursor will appear on the screen.

•Chart Views: The 4-WAY Cursor Control key also pans the charts and highlights decluttered waypoint icons.

NOTE: In Freeze Frame or Active Cursor mode, you can also make the cursor move diagonally by pressing in between two of the arrows on the 4-WAY Cursor Control key.

•Bird’s Eye View: The 4-WAY Cursor Control key controls the motion of the eye point.

•Snapshot and Recording View: Press the UP or DOWN Cursor keys to highlight a recording icon, and then press the RIGHT Cursor key to start recording playback. Press the RIGHT or LEFT Cursor keys to control the speed of playback.

VIEW PRESET Keys

The VIEW PRESET keys are used to save your three favorite views for quick retrieval. Instead of using the VIEW key to cycle through all the views to find the one you want, you can program the VIEW PRESET keys to display a specific view immediately. See Views for more information.

EXIT Key

The EXIT key has multiple functions, which depend on the situation:

•If an alarm is sounding, press the EXIT key to cancel the alarm.

•If a menu tab is selected, press the EXIT key to exit the menu mode and return to the view.

•If a menu is active, press the EXIT key to return to the previous level in the menu system.

•From any view, press the EXIT key to cycle through the available views in reverse order.

•If Freeze Frame is active, press the EXIT key to return to a scrolling display.

•If the Cursor is active, press the EXIT key to remove the cursor from the display.

Key Functions

INFO Key

Press the INFO key while in Bird's Eye, Chart, or Combo View to display information about objects that are near an active cursor. If the cursor is not active, the Chart Info submenu will be displayed. See Views: Viewing Cartography for more information.

NOTE: Your control head will have one of the INFO keys shown here. Both keys function in the same way.

MARK Key

Press the MARK key while in any view to mark the position of a waypoint. The MARK key function is available if the GPS receiver is connected.

•Active Cursor: The waypoint will be marked at the cursor location.

•Without Active Cursor: The waypoint will be marked at the boat location.

•If Screen Snapshot is active, a waypoint will be created, and a screen snapshot will also be saved to the optional-purchase SD card (see Views: Snapshot and Recording View). Navigation is not affected by the Screen Snapshot feature.

NOTE: If Screen Snapshot is enabled but there is not a GPS receiver connected, pressing the MARK key will capture the screen image and display an error saying that a GPS position fix is required to create a waypoint.

NOTE: You must have an optional-purchase SD card installed for the screen snapshot feature to work.

GOTO Key

The GOTO key has multiple functions, which depend on the situation.

•Active Cursor: Press the GOTO key while in any view to create a waypoint and start navigation towards that waypoint.

•Without Active Cursor: Press the GOTO key to display the saved waypoints list, and then highlight a waypoint. Press the RIGHT Cursor key to begin navigation.

•Man Overboard: Press and hold the GOTO key for more than 1.5 seconds to activate the Man Overboard (MOB) function. Once MOB is activated, any current navigation will be cancelled and the current route will be discarded without notification (see Man Overboard

(MOB) Navigation).

ZOOM (+/-) Keys

The Zoom keys function in different ways which depend on the view displayed.

•Navigation Views or the Sonar Zoom View: Press the +/- ZOOM key to change the scale of the view to appear closer or farther away.

•Side Imaging® View or Down Imaging™ View: Use the 4- WAYCursor Control key to move the active cursor to a position on the screen. Press the + ZOOM key to magnify your selection. Press the -Zoom key to decrease the scale.

NOTE: The cursor must be active for the zoom feature to work in the Side Imaging® or Down Imaging™ View.

11	Key Functions

SD Memory Card Slots

The two SD card slots on your control head can be used with SD cards (optionalpurchase required) to add detailed charts to your Fishing System, update your Fishing System software, or export navigation data from your Fishing System.

Inserting an SD Card

into the Card Slot

NOTE: The SD Cards require a separate purchase. For more information, visit our Web site at humminbird.comor contact our Customer Resource Center at

1-800-633-1468.

To insert an SD memory card:

1.Remove the SD memory card slot cover.

2.Position the SD memory card so that the label faces the left side of the unit, and insert the card into the slot. Press down on the card until it clicks into place.

3.Close the slot cover and turn the knob just 1/4 of a turn to close. Do NOT overtighten, as this will not improve water resistance and may damage the cover.

4.To Remove: Press the SD memory card into the slot and then release. The card will eject, and you can then pull the card from the slot.

Add Maps to Your Fishing System

Your Fishing System includes a built-in Contour XD™ or UniMap™ with a more detailed map of North America (Domestic models) or a detailed map of Europe and Southeast Asia, including Australia and New Zealand (International models).

You can also purchase SD cards with additional chart information for a particular location.

NOTE: The SD Cards require a separate purchase. Your Fishing system supports LakeMaster® and Navionics® Cartography on SD card media.

NOTE: The 800/900 Series™ supports Navionics® Gold, HotMaps™, HotMaps™ Premium, and Platinum™ Cartography on SD card media. The 800/900 Series™ does not support Navionics® Classic Charts.

•Auto Select: When you install the SD cards in your control head, your Fishing System will retrieve the chart and display it automatically.

•Chart Select: You can also choose which chart to display with the Chart Select menu option in the Chart Menu Tab. Choose Right (card slot) or Left (card slot) to select the SD card you’d like to use. (see

Chart Menu Tab: Chart Select).

•Chart Layers: You can customize your Navigation Views by selecting which chart layers to display or hide (see Chart Menu Tab: Chart Detail Level).

•Map Borders: Use the 4-WAY Cursor Control key to move the active cursor within a map border, and press the ZOOM + key to view the different map (see Chart Menu Tab: Map Borders).

•Menu Options: The Chart Menu Tab will change to display menu options that correspond with the active chart (see Chart Menu Tab).

SD Memory Card Slots

Update Software

Set up an online account at humminbird.com so that you will receive the latest Humminbird® news and software upgrades for your Fishing System. You can also download HumminbirdPC™ from your account, which allows you to manage your waypoints, routes, and tracks on your personal computer.

Required Equipment: Personal computer with Internet access, a formatted SD memory card, and USB Memory Card Reader.

NOTE: To purchase the USB Memory Card Reader (AS CR) visit our Web site at humminbird.com or contact our Customer Resource Center at 1-800-633-1468. Our Customer Resource Center will also assist you with any questions you might have about updating your Humminbird® Fishfinder.

To update the control head software:

1.Install a formatted SD memory card into the card reader connected to your PC.

2.Register your Fishing System: Log on to humminbird.com. Click My Account. Set up a new account.

3.Download: From My Account\My Profile\My Equipment, click the file name of the latest software update [unit name (version #)].

•Read the instructions in the dialog box and click Download.

•Follow the prompts to save the software file directly to the SD Card.

4.Install the SD card with the updated software file into the control head card slot.

5.Power on your Fishfinder. The control head will recognize the new software and run through a series of prompts to confirm software installation.

Export Navigation Data

You can export all saved tracks, waypoints, and routes from your Fishing System to an optional-purchase SD memory card.

To export all navigation data:

1.Make sure that an optional-purchase SD memory card is installed in the slot.

2.Press the MENU key twice to access the Main Menu, then press the RIGHT Cursor key until the Navigation tab is selected.

3.Highlight Export All Nav Data and press the RIGHT Cursor key. The Confirm dialog box will appear. To confirm export, press the RIGHT Cursor key once more. To cancel export, press the LEFT Cursor key.

NOTE: If an SD memory card is not installed, an error message will be displayed. Insert the SD memory card and try again.

NOTE: The SD memory cards and USB Memory Card Reader require separate purchases. The USB Memory Card Reader accessory can be used in conjunctionwith your personal computer to view and organize your exported navigation data. To purchase this accessory, visit our Web site at humminbird.com or contact our Customer Resource Center at 1-800-633-1468.

13	SD Memory Card Slots

What’s on the Sonar Display

The Fishing System can display a variety of useful information about the area under and adjacent to your boat, including the following items:

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Triplog

1Depth - Water depth; can be set to alarm when the water becomes too shallow.

2Timer - Elapsed time with Speed accessory or GPS Receiver.

3Distance - Distance traveled with Speed accessory or GPS Receiver.

4Average Speed - Average speed reading with Speed accessory or GPS Receiver.

5Barometric Pressure - Requires optional-purchase WeatherSense®

6Temperature - Water surface temperature

7Speed - If a Speed accessory or GPS Receiver is attached, the Fishing System can display the speed of the boat, and can keep a triplog of nautical or statute miles traveled.

8 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.

9 Sonar Color Bar - Color spectrum indicating low to high sonar intensity returns, where red indicates high intensity and white indicates low intensity.

10 Bait Ball

11 RTS (Real Time Sonar) Window™

12 Second Sonar Return - When the sonar signal bounces between the bottom and the surface of the water and back again. Use the appearance of the second return to determine bottom hardness. Hard bottoms will show a strong second return, while soft bottoms will show a very weak one or none at all.

13 Cursor - Available in Freeze Frame and can be positioned in the Sonar View to provide depth of a sonar retun and bottom depth 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 attached. Cursor information is displayed at the top of the screen.

What’s on the Sonar Display

Understanding the Sonar Display

It is important to understand the significanceof 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 display.

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™ always 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: Real Time Sonar (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 placement of the return on the display depth scale.

The Wide RTS Window™ indicates the sonar intensity through the use of a bar graph. The length of the plotted return provides an indication of whether the return is weak or strong. The depth of the sonar return is indicated by the vertical placement of the return on the display depth scale.

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.

15	What’s on the Sonar Display

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 top 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.

Sonar 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.

NOTE: A sloping bottom will be represented as a thicker line across the display. Harder bottoms typically will be displayed with red and softer bottoms typically will be displayed with blue.

The sonar returns from the bottom, structure, and fish can be represented as

Structure ID® or WhiteLine™. See Sonar Menu: Bottom View to set the Bottom View.

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 Side Imaging® Display (898c SI and 998c SI only)

Side Imaging® displays a numberof easilyrecognizable features that allow for accurateinterpretation of bottom contour and structure. For Side Imaging®, the bottom composition determines the intensity of the sonar return. For example, rock and gravel provide a clearer sonar return than mud and sand because of their relative density. Upward slopes that face the transducer reflect sonar better than downward slopes that face away from the transducer.You can find a number of easily recognizable features on the Side Imaging® display that allow for accurate interpretation of bottom contour and structure, including the following items:

Triplog

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1Depth - Water depth; can be set to alarm when the water becomes too shallow.

2Timer - Elapsed time with Speed accessory or GPS Receiver.

3Distance - Distance traveled with Speed accessory or GPS Receiver.

4Average Speed - Average speed reading with Speed accessory or GPS Receiver.

5Barometric Pressure - Requires optionalpurchase WeatherSense®

6Temperature - Water surface temperature

7Speed - If a Speed accessory or GPS Receiver is attached, the Fishing System can display the speed of the boat, and can keep a triplog of nautical or statute miles traveled.

8Water column - Shows the relative depth of the water under the boat at a given time. Variations in the width of the water column show variations in the distance to the bottom as the boat passes over.

9Shadows - Result from a lack of reflected sonar from a particular area and can be more 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.

10Topography Changes - The light part of the screen showswhere the beam is hitting hard bottom or rising terrain. The dark part of the screen indicates soft bottom (sand, mud) or descending terrain.

11Bottom Return

12Side Imaging® Range - Images shown on the right side of the screen are located on the right side of your boat, and images shown on the left side of the screen are located on the left side of your boat. In this illustration, the sonar is pinging 148 feet on each side.

13Top of the Display - Information from the side beams are displayed at the top of the screen. As new information is received, the historical data scrolls down the screen. For the most current information, watch the top of the screen.

14Freeze Frame & Zoom - Use the 4-WAY Cursor Control key to move the cursor to an area on the screen, and press the ZOOM+ key to see the sonar returns in greater detail.

15Clouded Area - May indicate a bait ball and White Streaks may indicate fish.

17	What’s on the Side Imaging® Display

Understanding the Side Imaging® Display

It is important to understand how Side Imaging® technology produces the display. The images you see on the display are produced using sonar technology. The special transducer projects three distinct beams – one beam facing down and two beams pointing out to the side.

Down Beam is aimed directly below the boat and provides conical coverage.

Side Beams are aimed at right angles to the path of the boat. The side beam coverage is very thin from front to back, yet very wide top to bottom. The narrow aspect (front to back) of the beam illuminates a small strip of the bottom perpendicular to the direction of the boat.

Side Imaging® Representation

As the unit pings, a strip of data is displayed at the top of the Side Imaging® view.

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.

The rows closest to the boat icon at the top of the view are the most recent sonar data. The information is scrolled down the screen as new data, drawn at the top of the screen, becomes available.

Side Imaging Sonar echoes are first displayed at the top of the screen, and historical data scrolls down the display as new information is received.

The main benefit of Side Imaging® sonar to anglers is that it provides an overall survey of a large area of water. This gives you a better understanding of the bottom topography and how structure is oriented for more efficient fishing.

Saltwater anglers pick up precise details of popular fishing structure like wrecks, reefs, humps and drop-offs, as well as being able to spot bait balls in open water. Freshwater anglers can see fish-attracting structure such as timber, stumps, rocks and creek beds.

What’s on the Side Imaging® Display

Side Imaging® Frequencies and Coverage

Side Imaging® sonar uses two very precise sonar beams that are directed to either side of the boat. The beams “illuminate” the bottom contour, structure, and fish, and the results are displayed in a “picture-like” image on the screen.

•Frequencies: The side beams can be operated at one of two frequencies: 455 kHz or 800 kHz. Your Side Imaging® transducer also provides DualBeam PLUS™ at 200/83 kHz. Selecting 800 kHz produces the sharpest image, while selecting 455 kHz provides greater bottom coverage area.

•Side Imaging® Beams are extremely narrow from front to back, and provide “thin slices” of the bottom for high resolution imaging.

•Side Imaging® Range: 240 feet to each side, with a total side coverage of 480 feet, with a depth limitation of 150 feet, depending on the contour of the bottom and when the side beam frequency selection is set to 455 kHz.

455 kHz provides maximum coverage with 180° total beam width

800 kHz provides highest resolution with 130° total beam width

19	What’s on the Side Imaging® Display

For Best Performance

Use the following tips and examples to help you interpret the Side Imaging® display.

Side Imaging® Tips

Boat speed: 2 to 6 mph

Straight line navigation

Minimum turning time and wave turbulence

Boat speed: Side Imaging® is best performed at boat speeds between 2 to 6 mph. If the boat is stationary, the same information is displayed over and over. If the boat is moving very quickly, there will be gaps between the strips of information. The best boat speed to use will depend on the side range selected. Slower speeds are good for longer ranges, while faster speeds can be used at shorter ranges.

Boat navigation: It is important to understand that when the boat turns, successive beam strips to one side will begin to overlap and the strips on the other side will fan out, providing some distortion to the image. Because of this, the best imaging performance is produced by straight line navigation and minimal side-to-side boat motion (i.e. wave induced, etc.) This applies to navigation by either the main engine or the trolling motor. Minimize turning time and avoid wave action that induces large side-to-side rocking of the boat. For example, if there is a lot of wave activity, try to move the boat so that it is perpendicular to the waves instead of parallel with the waves in order to minimize the side-to-side rocking of the boat.

Beam Coverage: When there is an area directly under the boat that does not have SI beam coverage, this area will be covered by the standard 200/83 kHz down-looking beam and displayed in the Sonar views. The net effect of this, on the display, is that a single object may appear as two separate entities, when in reality, it is one continuous object. See Submerged Bridge: A Closer Perspective and the Submerged Bridge: Alternative Perspective illustrations for examples of this.

See humminbird.com and sideimaging.com for a side imaging sonar tutorial and additional information.

What’s on the Side Imaging® Display

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