Humminbird GPS 4089701 User manual

Humminbird GPS 4089701 User manual
550, 560, 561, 561 DI, 570, 570 DI,
and 571 HD DI Operations Manual
531716-5EN_A
Thank You!
Thank you for choosing Humminbird®, the #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.
To contact our Customer Resource Center, call 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 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.
NOTE: To purchase accessories for your control head, visit our Web site at
humminbird.com or contact our Customer Resource Center at 1-800-633-1468.
NOTE: The procedures and features described in this manual are subject to change without
notice. This manual was written in English and may have been translated to another
language. Humminbird® is not responsible for incorrect translations or discrepancies
between documents.
NOTE: The illustrations in this manual may not look the same as your product, but your unit
will function in the same way.
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.
500 Series™, Down Imaging™, DualBeam PLUS™, Fish ID+™, Humminbird®, RTS™,
RTS Window™, Structure ID®, SwitchFire™, WhiteLine™, and X-Press™ Menu are trademarked
by or registered trademarks of Johnson Outdoors Marine Electronics, Inc.
Baekmuk Batang, Baekmuk Dotum, Baekmuk Gulim, and Baekmuk Headline are registered
trademarks owned by Kim Jeong-Hwan.
© 2012 Johnson Outdoors Marine Electronics, Inc. All rights reserved.
Table of Contents
Power On
1
How Sonar Works
2
Single Beam Sonar (550, 560) .................................................................................... 4
DualBeam PLUS™ Sonar (561, 570) .......................................................................... 5
Down Imaging™ Sonar (561 DI, 570 DI, and 571 HD DI) ................................................ 6
What’s on the Sonar Display
7
Understanding the Sonar Display ............................................................................ 9
Real Time Sonar (RTS™) Window ............................................................................ 9
Sonar Returns and Bottom View ............................................................................ 10
SwitchFire™ ............................................................................................................ 12
Freeze Frame and Active Cursor ............................................................................ 12
Instant Image Update ............................................................................................ 12
What’s on the Down Imaging™ Display
(Down Imaging™ models only [561 DI, 570 DI, and 571 HD DI])
13
Understanding the Down Imaging™ Display ........................................................ 15
Interpreting the Display .......................................................................................... 15
Down Imaging™ Sensitivity .................................................................................. 16
Freeze Frame and Active Cursor ............................................................................ 16
Views
17
Sonar View .............................................................................................................. 19
Sonar Zoom View .................................................................................................... 20
Split Sonar View (DualBeam PLUS™ and
Down Imaging™ models only [561, 570, 561 DI, 570 DI, and 571 HD DI])........................ 21
Big Digits View ........................................................................................................ 22
Down Imaging™ View (Down Imaging™ models only [561 DI, 570 DI, and 571 HD DI]) .. 23
Down Imaging™/Sonar Combo View (Down Imaging™ models only
[561 DI, 570 DI, and 571 HD DI]) ................................................................................ 24
What's on the 500 Series™ Control Head
25
Key Functions
26
POWER/LIGHT Key .................................................................................................. 26
VIEW Key.................................................................................................................. 27
MENU Key ................................................................................................................ 27
i
Table of Contents
4-WAY Cursor Control Key (LEFT, RIGHT, UP, or DOWN Cursor keys) .......................... 28
EXIT Key ................................................................................................................ 28
The Menu System
29
Start-Up Options Menu
30
Normal .................................................................................................................. 30
Simulator ................................................................................................................ 31
System Status ........................................................................................................ 31
Self Test ................................................................................................................ 32
Accessory Test ...................................................................................................... 32
X-Press™ Menu
33
Main Menu
34
Quick Tips for the Main Menu .................................................................................. 35
Note for all Menu Settings .......................................................................................... 35
User Mode (Normal or Advanced) .............................................................................. 36
Sonar X-Press™ Menu (Sonar Views only)
38
Sensitivity .............................................................................................................. 39
Upper Range (Advanced: Sonar and Big Digits Views only) .......................................... 40
Lower Range .......................................................................................................... 40
Chart Speed .......................................................................................................... 41
Bottom View .......................................................................................................... 41
Zoom Level (Sonar Zoom View only) .......................................................................... 41
Bottom Lock (Sonar Zoom View only) ........................................................................ 42
Bottom Range (Sonar Zoom View only when Bottom Lock is On) ................................ 42
Down Imaging™ X-Press™ Menu
(Down Imaging™ Views only [561 DI, 570 DI, and 571 HD DI])
43
Imaging Sensitivity ................................................................................................ 44
DI Enhance ............................................................................................................ 44
Upper Range (Advanced) ........................................................................................ 45
Lower Range ........................................................................................................ 45
Chart Speed .......................................................................................................... 46
Imaging Palette...................................................................................................... 46
ii
Table of Contents
Alarms Menu Tab
47
Depth Alarm ............................................................................................................ 48
Fish ID Alarm .......................................................................................................... 48
Low Battery Alarm .................................................................................................. 48
Temp. Alarm ............................................................................................................ 49
Alarm Tone .............................................................................................................. 49
Timer Setup .............................................................................................................. 49
Start Timer................................................................................................................ 50
Stop Timer (with the Timer running) ............................................................................ 50
Sonar Menu Tab
51
Beam Select (561, 570, 561 DI, 570 DI, and 571 HD DI) ................................................ 52
Imaging Frequency (Down Imaging™ Views only [561 DI, 570 DI, and 571 HD DI]) ........ 54
Surface Clutter ........................................................................................................ 55
SwitchFire™ ............................................................................................................ 55
Fish ID+™ ................................................................................................................ 56
Fish ID Sensitivity .................................................................................................... 57
Real Time Sonar (RTS™) Window .......................................................................... 57
Zoom Width ............................................................................................................ 58
83 kHz Sensitivity (Advanced, DualBeam PLUS™ Sonar only [561, 570]) ........................ 58
455 kHz Sensitivity (Advanced, Down Imaging™ only [561 DI, 570 DI, and 571 HD DI]) .. 58
Depth Lines (Advanced) ............................................................................................ 59
Noise Filter (Advanced) .............................................................................................. 59
Max Depth (Advanced) .............................................................................................. 60
Water Type (Advanced) .............................................................................................. 60
Digital Depth Source (Advanced, Down Imaging™ models with
optional-purchase transducers only [561 DI, 570 DI, and 571 HD DI]) .............................. 61
Imaging Palette (Down Imaging™ Views only [561 DI, 570 DI, and 571 HD DI]) .............. 61
Setup Menu Tab
62
Units - Depth .......................................................................................................... 63
Units - Temp (International models only) .................................................................... 63
Units - Distance (with Temp/Speed only) .................................................................... 63
Units - Speed (with Temp/Speed only) ........................................................................ 63
iii
Table of Contents
User Mode ............................................................................................................ 64
Language (International models only) ........................................................................ 64
Triplog Reset (with Temp/Speed only) ...................................................................... 64
Restore Defaults .................................................................................................... 64
Select Views (Advanced) .......................................................................................... 65
Select Readouts (Advanced, Sonar View and Down Imaging™ View only) .................. 65
Depth Offset (Advanced) .......................................................................................... 66
Temp. Offset (Advanced) .......................................................................................... 66
Speed Calibration (Advanced, with Temp/Speed only) .............................................. 67
Digits Format (Advanced) ........................................................................................ 67
Demonstration ...................................................................................................... 67
Sound Control ........................................................................................................ 67
Maintenance
68
Troubleshooting
70
Fishfinder Doesn’t Power Up ................................................................................ 70
Fishfinder System Defaults to Simulator with a Transducer Attached .............. 70
Display Problems .................................................................................................. 71
Finding the Cause of Noise .................................................................................. 72
Specifications
73
Glossary
81
Contact Humminbird®
85
NOTE: Entries in this Table of Contents which list (International models 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.
iv
Power On
Follow the instructions below to power on your Humminbird® control head.
570 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
1
How Sonar Works
Sonar technology is based on sound waves. The 500 Series™ Fishfinder uses
sonar to locate and define structure, bottom contour and composition, as well
as depth directly below the transducer.
Your 500 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.
2
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
3
Single Beam Sonar
(550, 560)
The 550 Fishfinder and 560 Fishfinder use a
200 kHz single beam sonar system with a 20°
area of coverage. Depth capability is affected by
such factors as boat speed, wave action, bottom
hardness, water conditions, and transducer
installation.
4
How Sonar Works
DualBeam PLUS™ Sonar (561, 570)
The 561 Fishfinder and 570 Fishfinder use 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
5
Down Imaging™ Sonar
(561 DI, 570 DI, and 571 HD DI)
45°
800kHz
75°
455kHz
16°
455kHz
The 561 DI, 570 DI, and 571 HD DI
Fishfinders use 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.
25°
200kHz
75 Degree Total Coverage
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.
6
How Sonar Works
What’s on the Sonar Display
The 500 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.
Distance - Distance traveled with Temp/Speed
Accessory.
Average Speed - Average speed reading with
Temp/Speed Accessory.
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.
Speed - If a Temp/Speed accessory is attached,
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) are available if the accessory is connected
What’s on the Sonar Display
7
the area under your boat, including the following items:
Bait Ball
Hollow Fish Symbol (see Fish ID+™)
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 gray
levels moving across the display at the same
depth.
Structure - Where fish may be hiding.
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.
Shaded Fish Symbol (see Fish ID+™)
RTS (Real Time Sonar) Window™
Battery Voltage - The voltage of the boat’s
battery; can be set to alarm if the voltage falls
below a certain point.
to the 500 Series™ Fishfinder.
8
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 grayscale.
The grayscale used matches
the Bottom View grayscale
setting (Inverse, Structure ID®,
WhiteLine™, Bottom Black).
The depth of the sonar return
is indicated by the vertical
placement of the 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 the sonar
return is indicated by the
vertical placement of the
return on the display depth
scale. The Wide RTS
Window™ does not use
grayscale.
9
Bottom View, Inverse Palette
HIGH
Intensity Return
MEDIUM
Intensity Return
LOW
Intensity Return
Sonar Returns and Bottom View
As the boat moves, the unit charts the
changes in depth on the display to create a
profile of the Bottom Contour. The Sonar
View displays the sonar return intensity using
gray scale.
Strong returns often result from rocky or
hard bottoms (compacted sediment, rocks,
fallen trees), while weaker returns often
result from soft bottoms (sand, mud),
vegetation, and small fish.
The shades used to represent high, medium,
to low intensity returns are determined by
the setting you choose in the Bottom View
menu option. See Sonar X-Press™ Menu to
set the Bottom View.
Sonar View:
Bottom View set to Inverse (default setting)
Sonar History:
Historical Returns
scroll left across
the view.
Weak Returns
(possibly
vegetation or
small fish)
RTS Window™
Strong Returns
(possibly rocks,
tree limbs, or
other structure)
Strong Return
(possibly
compacted
sediment or
rocks)
10
What’s on the Sonar Display
Inverse is a method where weak returns are
shown with dark pixels and strong returns with
lighter pixels. This has the benefit of ensuring that
weak signals will be clearly visible on the display.
Structure ID® represents weak returns as light
pixels and strong returns as dark pixels. This has
the benefit of ensuring that strong returns will be
clearly visible on the display.
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.
Black (Bottom Black) displays all pixels below the
bottom contour as black, regardless of signal
strength. This has the benefit of providing a high
contrast between the bottom and other sonar
returns on the display.
What’s on the Sonar Display
11
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 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.
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.
12
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.
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 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) are available if the accessory is connected
What’s on the Down Imaging™ Display
13
(Down Imaging™ models only [561 DI, 570 DI, and 571 HD DI])
information about the area directly below your boat. The razor-thin, high-definition
Down Imaging™ reveals a variety of recognizable features so that you can
Upper Range
Structure
Clouded Area may indicate a bait ball and
White Streaks may indicate fish.
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.
Bottom Return - Use the appearance of the
bottom 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.
Lower Range
to the 500 Series™ Fishfinder.
14
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
15
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 Down Imaging™ X-Press™ Menu: Imaging
Sensitivity or Down 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.
16
What’s on the Down Imaging™ Display
Views
The sonar information from your Fishfinder is
displayed on the 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 550, 560, 561, or 570 control
head, Sonar View will be the default view. When you first power up the
561 DI, 570 DI, or 571 HD DI control head, Down Imaging™ 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 menu settings that affect the sonar, the view will update
immediately. You don't have to exit the menu to apply the change to the screen.
Views
17
To customize your view rotation:
You can choose which views are hidden or visible in your view rotation.
1. Press the MENU key twice to access the tabbed Main Menu, then
press the RIGHT Cursor key until the Setup tab is selected.
2. Press the DOWN Cursor key to highlight Select Views, and press the
RIGHT Cursor key to access the Select Views submenu.
NOTE: If the Select Views option does not appear under the Setup tab, change the
User Mode to Advanced.
3. Press the UP or DOWN Cursor keys to select a View.
4. Press the LEFT or RIGHT Cursor keys to change the status of the view
from Hidden to Visible or vice versa.
To change the Digital Readouts:
Each view displays digital readout information (such as speed or time), which
varies with the view selected and the accessory attached. The digital readouts
on the Sonar View can be customized. See Setup Menu Tab: Select Readouts
for more information.
1. Press the MENU key twice to access the tabbed Main Menu, then
press the RIGHT Cursor key until the Setup tab is selected.
2. Press the DOWN Cursor key to highlight Select Readouts, and press the
RIGHT Cursor key to access the Select Readouts submenu.
NOTE: If the Select Readouts option does not appear under the Setup tab, change the
User Mode to Advanced.
3. Press the UP or DOWN Cursor keys to select a Readout position, then
press the RIGHT or LEFT Cursor keys to choose what will be displayed in
that position. To hide the data window, select Off.
18
Views
Sonar View
Sonar View presents a historical log of sonar returns. The most recent sonar
returns are charted on the right side of the display. As new information is
received, the historical information scrolls left across the display.
• Upper and Lower Depth Range numbers indicate the distance from the
surface of the water to a depth range sufficient to show the bottom.
• Depth is automatically selected to keep the bottom visible on the display,
although you can adjust it manually as well (see Sonar X-Press™ Menu).
• Digital Readouts shown on the display will change based on the Select
Readouts settings or the optional-purchase accessories attached (see
Setup Menu Tab: Select Readouts).
• Freeze Frame - Use the 4-WAY Cursor Control key to freeze the display
and move the cursor over a sonar return. The depth of the sonar return
will be displayed at the bottom of the screen in the cursor information
box.
Sonar View
Upper Depth
Range
Depth
Temperature
Triplog
Sonar History
Window
RTS Window™
Lower Depth
Range
Speed
NOTE: If the Depth number is flashing, it means that the unit is having trouble locating
the bottom. This usually happens if the water is too deep, the transducer is out of the
water, the boat is moving too fast, or for any other reason that the unit can’t accurately
receive continuous data.
Views
19
Sonar Zoom View
Sonar Zoom View provides a magnified view of the bottom and structure. The
Sonar Zoom View makes it easier to see separate sonar returns that would
usually be displayed close together, such as those caused by fish suspended
close to the bottom or within structure.
• The Zoom Level, or magnification, is displayed in the lower left corner
of the display. Press the MENU key once to access the Sonar X-Press™
Menu and use Zoom Level to adjust the zoom settings.
• The Zoomed View is displayed on the left side of the screen. As the
depth changes, the zoomed view updates automatically.
• The Full Range View is displayed on the right side of the screen. The
Full Range View includes the Zoom Preview Box, which shows where
the zoomed view is in relation to the full range view.
• The Upper and Lower Depth Range numbers indicate the high and low
range of the water which is being viewed.
Sonar Zoom View
Upper Depth Range,
Full Range View
Depth
Upper Depth Range,
Zoom View
Zoomed View
Full Range View
Zoom Preview Box
Lower Depth Range,
Zoom View
Zoom Level
Digital depth is displayed in the upper left hand corner. The
digital readouts in the Sonar Zoom View cannot be
customized; therefore, information such as water temperature
and voltage are unavailable in the Sonar Zoom View.
20
Lower Depth Range,
Full Range View
Views
Split Sonar View
(DualBeam PLUS™ and Down Imaging™ models only [561, 570, 561 DI, 570 DI, & 571 HD DI])
Split Sonar View displays sonar returns from each down beam frequency on
separate sides of the screen. You can use the Split Sonar View to make side by
side comparisons between the sonar returns from both beams.
• DualBeam PLUS™ models (561, 570) display sonar returns from the
83 kHz wide beam on the left side of the screen and sonar returns from
the 200 kHz narrow beam on the right side of the screen.
• Down Imaging™ models (561 DI, 570 DI, 571 HD DI) display sonar
returns from the 455 kHz narrow beam on the left side of the screen and
sonar returns from the 200 kHz wide beam on the right side of the
screen.
• Depth is displayed in the upper left hand corner.
• The Digital Readouts in the Split Sonar View cannot be customized;
therefore, information such as water temperature and voltage are
unavailable in the Split Sonar View.
570 DI Split Sonar View
Upper Depth
Range
Depth
200 kHz Sonar
History Window
455 kHz Sonar
History Window
Lower Depth
Range
Views
21
Big Digits View
Big Digits View provides digital data in a large, easy-to-see format.
• Digital Readouts: Depth is always displayed. Readouts for temperature,
speed, and Triplog information are displayed automatically if the
appropriate accessory is connected to the Fishfinder.
NOTE: The digital readouts in the Big Digits View cannot be customized.
• The Triplog shows distance traveled, average speed, and time elapsed
since the Triplog was last reset.
Big Digits View
Timer shows the
time elapsed since Triplog
was last reset
Depth
Distance is the distance
traveled since the Triplog
was last reset
Temperature
Voltage displays
the battery voltage
Speed
Average Speed shows the
speed since the Triplog
was last reset
22
Views
Down Imaging™ View
(Down Imaging™ models only [561 DI, 570 DI, and 571 HD DI])
Down Imaging™ View uses the razor-thin, high-definition profiling beams to
produce the detailed sonar data that you see on the display. Sonar returns are
charted on the right side of the display. As new information is received, the
historical information scrolls left across the display. See What’s on the Down
Imaging™ Display for more information.
• Down Imaging™ X-Press™ Menu: Press the MENU key once to access
the Down Imaging™ X-Press™ Menu. You can set the sensitivity of the
sonar, the chart scrolling speed, the display palette, and the Upper
Range and Lower Range (see Down Imaging™ X-Press™ Menu).
• Freeze Frame: Press any arrow on the 4-WAY Cursor Control key and the
Down Imaging™ View will freeze and a cursor will appear on the
screen. Use the 4-WAY Cursor Control key to move the cursor over a
sonar return. The depth of the sonar return at the cursor location will
be displayed in the cursor dialog box.
Down Imaging™ View
Upper Depth
Range
Depth
Temperature
Surface
Clutter
White Streaks
(possibly
vegetation or
fish)
Sonar History
Window
Lower Depth
Range
Speed
NOTE: See What’s on the Down Imaging™ Display and Down Imaging™
X-Press™ Menu for more information.
Views
23
Down Imaging™/Sonar Combo View
(Down Imaging™ models only [561 DI, 570 DI, and 571 HD DI])
Down Imaging™/Sonar Combo View shows traditional Sonar information on
the top and Down Imaging™ sonar information on the bottom of the view.
• X-Press™ Menu: Press the MENU key once to access the Down
Imaging™ X-Press™ Menu. You can set the sensitivity of the sonar, the
chart scrolling speed, and the display color palette (see Down
Imaging™ X-Press™ Menu and Sonar X-Press™ Menu).
• Freeze Frame: Press any arrow on the 4-WAY Cursor Control key and the
view will freeze and a cursor will appear on both views on the screen.
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.
Down Imaging™/Sonar Combo View
Upper Depth
Range
Depth
Traditional
Sonar
Window
Down
Imaging™
Sonar
Window
Lower Depth
Range
24
Views
What’s on the 500 Series™ Control Head
Your 500 Series™ Fishfinder interface is easy to use. A combination of keys and
special features allows you to control what you see on the display. Refer to the
following illustration, and see Key Functions for more information.
1
2
3
4
5
6
1 Screen
MENU key 4
EXIT key 5
2 VIEW key
3 4-WAY Cursor Control key
POWER/LIGHT key 6
(LEFT, RIGHT, UP, or DOWN Cursor keys)
500 Series™ Control Head
25
Key Functions
Your Fishfinder user interface consists of a set of easy-to-use keys that work
with various on-screen views and menus to give you flexibility and control over
your fishing experience.
POWER/LIGHT Key
The POWER/LIGHT key is used to power the Fishfinder on and off.
You can also use the POWER/LIGHT key to adjust the backlight
and contrast of the display.
Power On: 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: 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 Contrast:
Press the POWER/LIGHT key to access the Light
and Contrast submenu. Use the 4-WAY Cursor
Control key to select Light or Contrast, and then
use the LEFT or RIGHT Cursor key to change the
settings. Press EXIT to exit the Light and Contrast
submenu.
NOTE: Your 500 Series™ Fishfinder will start up with the backlight on and will
automatically turn it off to conserve power.
26
Key Functions
VIEW Key
The VIEW key is used to cycle through all available views. Press
the VIEW key to advance to the next view. Repeatedly pressing
VIEW cycles through all the available views. Views can be hidden
to optimize the system to your fishing requirements (see Views or Setup Menu:
Select Views).
NOTE: Press the EXIT key to cycle through the views in reverse order.
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.
• 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.
Key Functions
27
4-WAY Cursor Control Key
(LEFT, RIGHT, UP, or DOWN Cursor keys)
Use the 4-WAY Cursor Control key to navigate the Menu System.
• 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 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.
NOTE: In either 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.
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.
28
Key Functions
The Menu System
The Menu System is divided into easy-to-use menu modules as follows:
• Start-Up Options Menu: Press the MENU key during the power on
sequence to view the Start-Up Options Menu. From the Start-Up
Options Menu, you can choose the following Fishfinder Modes:
Normal, Simulator, and System Status.
• X-Press™ Menu: The X-Press™ Menu provides a shortcut to the most
frequently-used settings, and the options on the X-Press™ Menu
correspond with the current view.
• Main Menu: The Main Menu is a standard set of menu settings which
are organized under the following tabbed headings: Alarms, Sonar, and
Setup.
NOTE: The X-Press™ Menu(s) and the Main Menu options can also be expanded or
simplified by setting the User Mode to Advanced or Normal (see Main Menu: User
Mode).
The Menu System
29
Start-Up Options Menu
Press the MENU key during the power on sequence to view the Start-Up
Options Menu, and select one of the modes described on the following pages.
Also, see Power On for additional information.
Normal
Use Normal for on-the-water operation with a transducer connected. If a
functioning transducer is connected, Normal operation will be selected
automatically at power up, and your Fishfinder can be used on the water.
To exit Normal operation, power off your Fishfinder.
30
Start-Up Options Menu
Simulator
Use Simulator to learn how to use your Fishfinder before taking your boat on the
water. The Simulator is a very powerful tool that provides a randomly-updated
display which simulates on the water operation.
Simulator
We recommend going through this
manual while using the Simulator,
since all of the menus function and
affect the display in the same way as
they would in Normal operation. Any
menu changes you make will be saved
for later use.
NOTE: It is important to select Simulator
manually from the Start-Up Options Menu as
opposed to letting the Fishfinder enter
Simulator automatically (as it will if a
transducer is not connected and you do
nothing during power up).
A message will appear often on the display to indicate Simulator mode.
To exit Simulator, power off your Fishfinder.
System Status
Use System Status to view system connections and to conduct a unit self-test.
After you select System Status from the Start-Up Options Menu, press the
VIEW key to display the following options:
• Self Test
• Accessory Test
To exit System Status, power off your Fishfinder.
Start-Up Options Menu
31
Self Test displays results from the internal diagnostic self test, including unit
serial number, Printed Circuit Board (PCB) serial number, software revision,
total hours of operation, and the input voltage.
570 Self Test Screen
Accessory Test lists the accessories connected to the system.
System Status Accessory Test Screen
NOTE: The speed accessory will be detected only if the paddlewheel has moved since your
Fishfinder was powered up.
32
Start-Up Options Menu
X-Press™ Menu
X-Press™ Menu
The X-Press™ Menu provides a shortcut to your
most frequently-used settings. The options
provided on the X-Press™ Menu correspond
with the current view. For example, if you are in
a Sonar View and press the MENU key once, the
Sonar X-Press™ Menu will display.
To use an X-Press™ Menu:
1. In any view, press the MENU key once.
2. Press the UP or DOWN Cursor keys to highlight an X-Press™ Menu
option, then use the RIGHT or LEFT Cursor keys to change the menu
setting.
NOTE: The X-Press™ Menu will collapse temporarily and the screen will update if it is
affected by your menu setting change, which allows you to see the effects of your
change immediately.
3. Reactivate the X-Press™ Menu by pressing the UP or DOWN Cursor keys.
Total Screen Update - When you change any menu settings that affect the
current view, the view will update immediately (i.e. you don’t have to exit the
menu to apply the change to the screen).
Menu options can be simplified or expanded by setting the User Mode to
Normal or Advanced. See Main Menu: User Mode for details.
X-Press™ Menu
33
Main Menu
The Main Menu provides the standard set of
menu options, including the settings that are
changed less frequently. The Main Menu is
organized under the following tabs to help you
find a specific menu item quickly: Alarms,
Sonar, and Setup.
NOTE: Menu options can be expanded or simplified by
setting the User Mode to Advanced or Normal. See
Main Menu: User Mode for details.
Main Menu (Normal User Mode)
To use the Main Menu:
1. In any view, press the MENU key twice.
2. Press the RIGHT or LEFT Cursor keys to highlight a menu tab.
3. Press the UP or DOWN Cursor keys to select a specific menu option
under that tab.
4. Press the RIGHT or LEFT Cursor keys again to change a menu setting.
• A down arrow at the bottom of a menu means that you can scroll to
additional menu options using the DOWN Cursor key.
• A right or left arrow on a menu option means that you can use the RIGHT
or LEFT Cursor keys to make changes or to see more information.
• Press the EXIT key to move quickly to the top of the tab.
Total Screen Update - When you change any menu settings that affect the
current view, the view will update immediately (i.e. you don’t have to exit the
menu to apply the change to the screen).
34
Main Menu
Quick Tips for the Main Menu
• From any menu option on a menu tab, press the EXIT key to jump directly
to the top of the tab.
• From the bottom of a menu tab, press the DOWN Cursor key to jump
directly to the top of the tab.
• From the top of a menu tab, press the RIGHT or LEFT Cursor keys to scroll
to the next tab. You can also jump to the beginning or end of the tab
rotation by repeatedly pressing the RIGHT or LEFT Cursor keys.
• If there is a down arrow at the bottom of a menu tab, press the DOWN
Cursor key to scroll to additional menu options.
• If there is a right or left arrow on a menu option, press the RIGHT or LEFT
Cursor keys to make setting changes or see more information.
• If you press MENU or EXIT to leave the Main Menu and then return to the
Main Menu at a later time, the menu will open to the same tab as the last
time the Main Menu was displayed.
Note for all Menu Settings
The settings in all menus are adjusted in the same way. Simply use the 4-WAY
Cursor Control key to highlight a menu option, and then change the settings or
activate the option (see Main Menu or X-Press™ Menu).
Below is an example of how the menu options are described in this manual.
Each description shows the menu option appearance, the available settings,
and the specific control head settings required (i.e. advanced user mode,
international models only, view, navigation, or accessory).
Menu Option Name
Noise Filter
(Advanced)
Settings: Off, Low, Medium, High1, High2, High3,
Default = Low
Noise Filter adjusts the sonar Noise Filter to limit interference on the display
from sources such as your boat engine, turbulence, or other sonar devices.
Menu Option as it appears on the screen
Main Menu
35
Setup User Mode
and other control
head requirements
Available Menu
Settings
and Default
Setting Description
User Mode (Normal or Advanced)
Menu options can be simplified or expanded by setting your Fishfinder User Mode
to Normal or Advanced.
Normal Mode is the default setting when you first power on your 500 Series™
Fishfinder. Normal mode is provided for users who want greater simplicity and
fewer menu choices.
Advanced Mode is provided for users who want the highest level of control over
the Fishfinder. Several menu settings are added to the Main Menu when the User
Mode is changed to Advanced.
To change the User Mode setting:
1. Press the MENU key twice to access the Main Menu.
2. Press the RIGHT Cursor key until the Setup tab is selected.
3. Press the DOWN Cursor key to highlight User Mode on the Setup main
menu.
4. Press the RIGHT or LEFT Cursor keys to change the User Mode setting.
(Normal, Advanced, Default = Normal)
NOTE: Any changes made while in Advanced Mode will remain in effect after you
switch back to Normal Mode.
For example, the Select Readouts menu option is available when the User Mode is set
to Advanced. If you change the Select Readouts settings while operating in Advanced
User mode, the Select Readouts you choose will continue to display on the screen even
if you switch back to Normal User Mode.
36
Main Menu
571 HD DI
Sonar Tab, Normal Mode
571 HD DI
Sonar Tab, Advanced Mode
Main Menu
37
Sonar X-Press™ Menu
(Sonar Views only)
The Sonar X-Press™ Menu provides a shortcut
to your most frequently-used settings. Press the
MENU key once while in any of the Sonar Views
to access the Sonar X-Press™ Menu.
NOTE: Menu options can be expanded or simplified
by setting the Fishfinder User Mode to Advanced or
Normal. See Main Menu: User Mode for details.
Sonar X-Press™ Menu
38
Sonar X-Press™ Menu
Sensitivity
Settings: Low = 1, High = 20; Default = 10
Sensitivity controls how much detail is shown on the display and will adjust
the sensitivity of all sonar frequencies.
When operating in very clear water or greater depths, increase the sensitivity
to see weaker returns that may be of interest. If the sensitivity is adjusted too
high, the display may become too cluttered.
Decrease the sensitivity to eliminate the clutter from the display that is
sometimes present in murky or muddy water. If Sensitivity is adjusted too low,
the display may not show many sonar returns that could be fish.
NOTE: The Sensitivity setting is a global setting and will adjust the sensitivity of all
sonar frequencies.
Sensitivity at Low
Sonar X-Press™ Menu
Sensitivity at Medium
39
Sensitivity at High
Upper Range
(Advanced: Sonar and Big Digits Views only)
Settings: 0 to 790 ft, 0 to 990 ft (561 only), or 0 to 257 m
(International models only); Default = 0 ft
Upper Range sets the shallowest depth range that will be displayed on the Sonar
and Big Digits Views. Upper Range is often used with Lower Range.
For example, if you are only interested in the area between 20 and 50 feet
deep, you should set the Upper Depth Range to 20 and the Lower Depth Range
to 50. The Sonar View will then show the 30 foot area between 20 and 50 and
will not show the surface or the bottom (assuming the bottom is deeper than
50 feet). Greater detail will be shown for the area between 20 and 50 feet.
NOTE: A minimum distance of 10 feet will be maintained between the Upper and
Lower Range regardless of the manual settings entered.
Lower Range
Settings: Auto to 800 ft, Auto to 1200 ft (561 only), or Auto
to 260 m (International models only); Default = Auto
Lower Range sets the deepest depth range that will be displayed by the unit.
Auto: The Lower Range will be adjusted by the unit to follow the bottom
automatically. Auto is the default setting.
Manual: You can adjust the Lower Range to lock the unit on a particular depth.
“M” will be displayed in the lower right corner of the screen to indicate the unit
is in Manual mode. Adjust the Upper and Lower Range together to view a
specific depth range, especially when looking for fish or bottom structure.
For example, if you are fishing in 60 feet of water but are only interested in
the first 30 feet (surface to a depth of 30 feet), you should set the Lower
Depth Range limit to 30. The display will show the 0 to 30 foot range, which
allows you to see a more detailed view than you would see if the display
went all the way to the bottom.
NOTE: A minimum distance of 10 feet will be maintained between the Upper and
Lower Range regardless of the manual settings entered.
40
Sonar X-Press™ Menu
Chart Speed
Settings: 1-9, Ultra, where 1 = Slow, 9 = Fast, Ultra =
Fastest; Default = 5
Chart Speed determines the speed at which the sonar information moves across
the display, and consequently the amount of detail shown.
A faster speed shows more information and is preferred by most anglers;
however, the sonar information moves across the display quickly. A slower speed
keeps the information on the display longer, but the bottom and fish details
become compressed and may be difficult to interpret. Regardless of the Chart
Speed setting, the RTS Window™ will update at the maximum rate possible for
the depth conditions.
Bottom View
Settings: Inverse, Structure ID, WhiteLine, Bottom Black;
Default = Inverse
Bottom View selects the method used to represent bottom and structure on the
display. See What’s on the Sonar Display: Sonar Returns and Bottom View for
more information.
Zoom Level
(Sonar Zoom View only)
Settings: 2x, 4x, 6x, 8x; Default = 2x
Zoom Level sets the magnification level for the Sonar Zoom View. Use Zoom to
see more detail in the bottom sonar returns that might be displayed close
together, such as those caused by fish suspended close to the bottom or within
structure.
Zoom Level is only available on the X-Press™ Menu from the Sonar Zoom View.
The Zoom Preview Box shows the section of the bottom that will be magnified.
NOTE: The Zoom Preview Box tracks the bottom and cannot be moved.
Sonar X-Press™ Menu
41
Bottom Lock
(Sonar Zoom View only)
Settings: Off, On; Default = Off
Bottom Lock changes the mode of the zoomed view in the Sonar Zoom View.
Bottom Lock continuously graphs the bottom at a constant point on the display
regardless of changes in depth. This “flattens“ out the bottom contour, but is
effective at showing fish on or near the bottom.
Bottom Range
(Sonar Zoom View only when Bottom Lock is On)
Settings: 10 to 60 feet, 2 to 10 fathoms, or 3 to 20 meters
(International Models only); Default = 15 ft
Bottom Range allows you to control how much of the water column, measured
up from the bottom, is shown in the Sonar Zoom View. Choose a small value to
see low-lying bottom structure or details of the bottom return. Choose a larger
value to see large structure in deeper water.
NOTE: It is possible to set the Bottom Range to be greater than the depth. In this
case, you may see surface clutter in a wavy band that mirrors changes in the
depth.
42
Sonar X-Press™ Menu
Down Imaging™
X-Press™ Menu
(Down Imaging™ Views only [561 DI, 570 DI, and
571 HD DI])
The Down Imaging™ X-Press™ Menu provides
a shortcut to your most frequently-used
settings. Press the MENU key once while in any
of the Down Imaging™ Views to access the
Down Imaging™ X-Press™ Menu.
570 DI
Down Imaging™ X-Press™ Menu
Down Imaging™ X-Press™ Menu
NOTE: Menu options can be expanded or simplified
by setting the User Mode to Advanced or Normal. See
Main Menu: User Mode for details.
43
Imaging Sensitivity
Settings: Auto, 1 to 20, where Low = 1, High = 20;
Default = 10
Imaging Sensitivity (or Down Sensitivity) controls how the sonar returns are
displayed on the Down Imaging™ Views.
Increase the Imaging Sensitivity to reveal weaker returns that may be of
interest, especially in very clear water or greater depths. A high imaging
sensitivity setting shows more sonar returns from small baitfish and suspended
debris in the water; however if the sensitivity is adjusted too high, the display
may become too cluttered.
Decrease the Imaging Sensitivity to eliminate the clutter from the display that
is sometimes present in murky or muddy water. If the sensitivity is adjusted too
low, the display may not show many sonar returns that could be fish.
DI Enhance
Settings: Press the RIGHT Cursor key.
DI Enhance allows you to adjust your Down Imaging™ View in the following
categories: Sensitivity, Contrast, and Sharpness.
Whether you’re searching the Down Imaging™ data for fish or certain bottom
contour, the most effective settings will vary with the situation. The display will
update as you adjust each category.
DI Enhance Submenu
• Sensitivity: Controls how much detail is shown on the display. When
operating in very clear water or greater depths, increased sensitivity shows
weaker returns that may be of interest. Decreasing the sensitivity
eliminates the clutter from the display that is sometimes present in murky
or muddy water. (1 to 20, where Low = 1, High = 20, Default = 10)
44
Down Imaging™ X-Press™ Menu
NOTE: The Sensitivity can be adjusted from the DI Enhance dialog box or the Down
Imaging™ X-Press™ Menu. The Sensitivity setting is provided here so that you can
easily adjust the Down Imaging™ data with the other settings. See Down Imaging™
X-Press™ Menu: Imaging Sensitivity for more information.
• Contrast: Accents the light and dark parts of the Down Imaging™ data
to provide greater definition. (1 to 20, Default = 10)
• Sharpness: Filters the view and sharpens the edges of the Down
Imaging™ data. (Low (L), Medium (M), High (H), Default = Off)
Upper Range
(Advanced)
Settings: 0 to 790 ft or 0 to 257 m (International models
only); Default = 0 ft
Upper Range sets the shallowest depth range that will be displayed on the
Down Imaging™ Views. Upper Range is often used with Lower Range.
For example, if you are only interested in the area between 20 and 50 feet deep,
you should set the Upper Depth Range to 20 and the Lower Depth Range to 50.
The Sonar View will then show the 30 foot area between 20 and 50 and will not
show the surface or the bottom (assuming the bottom is deeper than 50 feet).
Greater detail will be shown for the area between 20 and 50 feet.
NOTE: A minimum distance of 10 feet will be maintained between the Upper and
Lower Range regardless of the manual settings entered.
Lower Range
Settings: Auto to 800 ft, Auto to 260 m (International
models only); Default = Auto
Lower Range sets the deepest depth range that will be displayed by the unit.
Auto: The Lower Range will be adjusted by the unit to follow the bottom
automatically. Auto is the default setting.
Manual: You can adjust the Lower Range to lock the unit on a particular depth.
M will be displayed in the lower right corner of the screen to indicate the unit
is in Manual mode. Adjust the Upper and Lower Range together to view a
specific depth range, especially when looking for fish or bottom structure.
Down Imaging™ X-Press™ Menu
45
For example, if you are fishing in 60 feet of water but are only interested in the
first 30 feet (surface to a depth of 30 feet) you should set the Lower Depth
Range limit to 30. The display will show the 0 to 30 foot range, which allows
you to see a more detailed view than you would see if the display went all the
way to the bottom.
NOTE: A minimum distance of 10 feet will be maintained between the Upper and
Lower Range regardless of the settings entered manually.
Chart Speed
Settings: 1-9, Ultra, where 1 = Slow, 9 = Fast, Ultra =
Fastest; Default = 5
Chart Speed determines the speed at which the sonar information moves across
the display, and consequently, the amount of detail shown.
A faster speed shows more information and is preferred by most anglers;
however, the sonar information moves across the display quickly. A slower speed
keeps the information on the display longer, but the bottom and fish details
become compressed and may be difficult to interpret.
Imaging Palette
Settings: Dark, Light, Inverse; Default = Dark
Imaging Palette allows you to select which monochrome palette you would like
to use for the Down Imaging™ display.
46
Down Imaging™ X-Press™ Menu
Alarms Menu Tab
From any view, press the MENU key twice to
access the Main Menu. The Alarms tab will be
the default selection.
NOTE: When an alarm is triggered, you can silence it
by pressing any key. The alarm will be silenced, and
will not be triggered again until a new instance of the
alarm condition is detected.
Alarms Menu
Alarms Menu Tab
47
Depth Alarm
Settings: Off, 1 to 100 ft, or 0.5 to 30 m (International
models only); Default = Off
Depth Alarm sounds when the depth becomes equal to or less than the menu
setting.
Fish ID Alarm
Settings: Off, All, Large/Medium, Large; Default = Off
Fish ID Alarm sounds when the Fishfinder detects fish that correspond to the
alarm setting. Fish ID Alarm will only sound if Fish ID+™ is on.
For example, if you've set the Fish ID Alarm to sound for Large fish only, the
Fish ID alarm will sound when a large-sized fish is detected.
Off
All
Large/Medium
Large
Low Battery Alarm
Settings: Off, 8.5V - 13.5V; Default = Off
Low Battery Alarm sounds when the input battery voltage is equal to or less
than the menu setting. The battery alarm will only sound for the battery that is
connected to the Fishfinder. The Low Battery Alarm should be set to warn you
when the battery voltage drops below the safety margin that you have
determined.
For example, if you are running a trolling motor (battery operated), you would
want to set the Low Battery Alarm to sound before the battery voltage drops
too low for it to be used to start your main, gasoline-powered engine.
48
Alarms Menu Tab
Temp. Alarm
Settings: Off, 33-120 (Fahrenheit), 0-50 (Celsius);
Default = Off
Temp. Alarm sounds when the water temperature detected by the Fishfinder
reaches the Temp. Alarm setting, which is either set in degrees Fahrenheit or
Celsius (international models only).
For example, if the Temp. Alarm is set to 58 degrees Fahrenheit, and the water
temperature falls from 60 degrees to 58 degrees, the Temp. Alarm will sound.
Similarly, if the water temperature rises from 56 degrees to 58 degrees, the Temp.
Alarm will also sound.
Alarm Tone
Settings: High, Medium, Low; Default = Medium
Alarm Tone selects the pitch of the alarm sound. A brief tone will be produced
as you adjust the Alarm Tone so that you can select the tone that you can hear
best.
Timer Setup
Settings: Press the RIGHT Cursor key to open the dialog
box.
Timer Setup allows you to open a dialog box to create settings for the Timer.
You can also start the countdown from this dialog box. When the Timer is
started, the clock counts down from the amount of time set in the dialog box.
• Time: Use the 4-WAY Cursor Control key to set the hours, minutes, and
seconds.
Alarms Menu Tab
49
• Save and Start: To start the Timer immediately, select Save and Start,
and press the RIGHT Cursor key.
• Save and Close: To save your settings and start the Timer at a later time,
select Save and Close, and press the RIGHT Cursor key. Also, see Start
Timer.
• Digital Readout: To display the Timer on-screen as it counts down, see
Views: To Change the Digital Readouts.
Start Timer
Settings: Press the RIGHT Cursor key to start the Timer.
Start Timer allows you to start the Timer using the saved countdown settings
in the Timer Setup dialog box. To create the Timer settings, see Timer Setup.
Stop Timer
(with the Timer running)
Settings: Press the RIGHT Cursor key to stop the Timer.
Stop Timer allows you to stop the Timer while it is counting down.
50
Alarms Menu Tab
Sonar Menu Tab
Press the MENU key twice to access the Main
Menu and then press the RIGHT Cursor key until
the Sonar tab is selected.
NOTE: Menu options can be expanded or simplified by
setting the User Mode to Advanced or Normal. See
Main Menu: User Mode for details.
NOTE: Menu options are determined by your
Humminbird® model. See the following pages for full
menu descriptions.
570 DI
Sonar Menu, Advanced
Sonar Menu Tab
51
Beam Select
(561, 570, 561 DI, 570 DI, and 571 HD DI only)
Settings: DualBeam PLUS™: 200/83 kHz, 200 kHz, 83 kHz;
Down Imaging™: 200 kHz, 455 kHz; Default = 200 kHz
Beam Select sets which sonar returns from the transducer will be displayed on
the screen. The available beam frequencies are determined by your
Humminbird® model.
DualBeam PLUS™ models (561, 570) allow you to choose 200/83 kHz,
200 kHz, or 83 kHz.
• When set to 200/83 kHz, the returns from both beams are blended by
starting with the 83 kHz wide beam return, dimming it, and then
overlaying it with the 200 kHz narrow beam return. The darker 200 kHz
narrow beam sonar returns will stand out from the paler 83 kHz wide
beam sonar returns. The Split Sonar View continues to display the sonar
returns from each beam in their respective windows. The blended
information is shown in the Sonar View, Sonar Zoom View, and the Big
Digits View. The RTS Window™ in the Sonar View will only show the
returns from the 200 kHz narrow beam.
• When set to 200 kHz, only the returns from the 200 kHz narrow beam
will be displayed in the Sonar View, the Sonar Zoom View, and the Big
Digits View. The Split Sonar View will continue to display returns from
both beams in their respective windows. The RTS Window™ in the
Sonar View will display the returns from the 200 kHz narrow beam.
• When set to 83 kHz, the returns from the 83 kHz wide beam will be
displayed in the Sonar View, the Sonar Zoom View, and the Big Digits
View. The Split Sonar View will continue to display returns from both
beams in their respective windows. The RTS Window™ will display the
returns from the 83 kHz wide beam.
52
Sonar Menu Tab
The Down Imaging™ models (561 DI, 570
DI, 571 HD DI) allow you to choose 200 kHz
or 455 kHz for conical sonar coverage in the
traditional sonar views.
45°
800kHz
75°
455kHz
16°
455kHz
25°
200kHz
75 Degree Total Coverage
Sonar Menu Tab
• When set to 200 kHz, only the returns
from the 200 kHz (25°) beam will be
displayed in the Down Imaging™
Views.
• When set to 455 kHz, only the returns
from the 455 kHz (16°) narrow beam
will be displayed in the Down
Imaging™ Views.
53
Imaging Frequency
(Down Imaging™ Views only [561 DI, 570 DI, & 571 HD DI])
Settings: 800 kHz or 455 kHz; Default = 455 kHz
Imaging Frequency allows you to select which frequency to apply to the Down
Imaging™ beams (455 kHz or 800 kHz). For the best overall image quality and
depth, select 455 kHz. For the sharpest image (but limited depth capability),
select 800 kHz.
45°
800kHz
75°
455kHz
16°
455kHz
25°
200kHz
75 Degree Total Coverage
54
Sonar Menu Tab
Surface Clutter
Settings: Low = 1 to High = 10; Default = 5
Surface Clutter adjusts the filter that removes surface clutter noise caused by
algae and aeration. The lower the setting, the less surface clutter will be
displayed.
Surface Clutter
Surface
Clutter
SwitchFire™
Settings: Max Mode, Clear Mode; Default = Clear Mode
SwitchFire™ controls how the sonar returns are displayed in the Sonar Views.
Choose Max Mode to see only raw sonar returns on the display. When Max
Mode is selected, you will see the maximum sonar information available within
the transducer beam, so more fish arches and better jig tracking are shown.
Choose Clear Mode to see less clutter and more fish size accuracy on the
display. When Clear Mode is selected, the clutter is filtered, and sonar returns
are interpreted to provide more details about the objects within the transducer
beam, regardless of their location. In other words, a large arch on the display
means a large fish has been detected.
Sonar Menu Tab
55
Fish ID+™
Settings: Off, On; Default = On
Fish ID+™ uses advanced signal processing to interpret sonar returns and will
display a Fish Symbol when very selective requirements are met. When a fish is
detected, a fish icon and its depth are displayed above the return that has been
classified as being a fish. Three different fish size icons represent the intensity of
the sonar return and provide an indicator of relative fish size.
Narrow Beam
Shaded Fish Symbols
Wide Beam
Hollow Fish Symbols
• In Single Beam models (550, 560), targets detected in the 200 kHz
beam are represented as shaded fish symbols.
• In DualBeam PLUS™ models (561, 570), targets detected in the
200 kHz narrow beam are represented as shaded fish symbols, and
targets detected in the 83 kHz wide beam are represented as hollow fish
symbols.
• In Down Imaging™ models (561 DI, 570 DI, 571 HD DI), targets
detected in the 455 kHz conical beam are represented as hollow fish
symbols, and targets detected in the 200 kHz conical beam are
represented as shaded fish symbols.
When Fish ID+™ is turned off, the Fishfinder shows only the raw sonar
returns on the display. These returns will often result in “arches“ forming on the
display, indicating potential targets. Due to the transducer beam angle, the
distance to a fish decreases as the fish moves into the beam, and then
increases as it moves out again, creating a Fish Arch when this distance change
is shown on the display. Boat speed, chart speed, and the position of the fish
within the sonar beam greatly affect the shape of the arch.
56
Sonar Menu Tab
Transducer Cone and Fish Arches
Fish ID Sensitivity
Settings: Low = 1, High = 10; Default = 5
Fish ID Sensitivity adjusts the threshold of the Fish ID+™ detection algorithms.
Selecting a higher setting allows weaker returns to be displayed as fish. This is
useful for identifying smaller fish species or baitfish. Selecting a lower setting
displays fewer fish from weak sonar returns. This is helpful when seeking larger
species of fish.
Fish ID Sensitivity is used in conjunction with Fish ID+™. Fish ID+™ must be On
for Fish ID Sensitivity to affect the ability of the Fishfinder to identify sonar returns
as fish.
Real Time Sonar (RTS™) Window
Settings: Wide, Narrow, Off; Default = Narrow
RTS Window™ sets the RTS Window™ to either Wide or Narrow, or turns it off
in the Sonar View. The RTS Window™ always updates at the fastest rate possible
and only displays returns that are within the transducer beam. See What’s on the
Sonar Display for more information.
NOTE: The Wide RTS Window™ does not use grayscale.
RTS Window™ (Wide)
Sonar Menu Tab
RTS Window™ (Narrow)
57
RTS Window™ (Off)
Zoom Width
Settings: Narrow, Medium, Wide; Default = Wide
Zoom Width adjusts the width of the zoomed view on the Sonar Zoom View,
which is on the left side of the display. See Views: Sonar Zoom View for more
information.
83 kHz Sensitivity
(Advanced, DualBeam PLUS™ Sonar only [561, 570])
Settings: -10 to +10; Default = 0
83 kHz Sensitivity changes the sensitivity of the 83 kHz beam. Increasing the
83 kHz Sensitivity will display additional weak returns, and decreasing the
83 kHz Sensitivity will display fewer weak returns.
NOTE: 83 kHz Sensitivity is particularly useful for adjusting the sensitivity of the 83 kHz
sonar returns in the Split Sonar View. The 83 kHz sensitivity can be adjusted without
affecting the sensitivity of the 200 kHz returns shown in the 200 kHz sonar window.
455 kHz Sensitivity
(Advanced, Down Imaging™ only [561 DI, 570 DI, and
571 HD DI])
Settings: -10 to +10; Default = 0
455 kHz Sensitivity adjusts the sensitivity of the 455 kHz beam. Increase the
sensitivity to display additional weak returns and decrease the sensitivity to
display fewer weak returns.
58
Sonar Menu Tab
Depth Lines
(Advanced)
Settings: Off, On; Default = On
Depth Lines divide the display into four equal sections which are separated
by three horizontal depth lines. The depth of each line is displayed along the
depth scale. You can turn Depth Lines On or Off.
Depth Lines
Depth Lines
Noise Filter
(Advanced)
Settings: Off, Low, Medium, High 1, High 2, High 3;
Default = Low
Noise Filter adjusts the sonar Noise Filter to limit interference on the display
from sources such as your boat engine, turbulence, or other sonar devices.
The Off setting removes all filtering. Low, Medium, High 1, High 2, and High 3
settings add progressive filtering of the sonar returns. High 1, High 2, and High
3 are useful when there is excessive trolling motor noise, but in some deep
water situations, the High settings may actually hinder your unit’s ability to find
the bottom.
Sonar Menu Tab
59
Max Depth
(Advanced)
Settings: Auto to 800 ft, Auto to 1200 ft (561 only), or Auto
to 260 m (International models only); Default = Auto
Max Depth controls the maximum depth of operation. When Max Depth is set
to Auto, the Fishfinder will acquire bottom readings as needed (within the
capacity of the unit). When Max Depth is set to match your fishing maximum
depth, your Fishfinder will not attempt to acquire sonar data below that depth,
so more detail will be shown on the screen.
NOTE: If the bottom is deeper than the Max Depth setting, the digital depth readout
will flash, indicating that the Fishfinder cannot locate the bottom.
Water Type
(Advanced)
Settings: Fresh, Salt (shallow), Salt (deep); Default = Fresh
Water Type configures your unit for operation in fresh or salt water. In salt
water, you can also choose the shallow or deep setting.
Water Type affects the accuracy of deep water depth readings. In salt water,
what would be considered a large fish might be 2 to 10 times bigger than a
large fish in fresh water (depending on the type of fish you are seeking). The
salt water setting allows for a greater range in fish size adjustment to account
for this difference.
60
Sonar Menu Tab
Digital Depth Source
(Advanced, Down Imaging™ models with optionalpurchase transducers only [561 DI, 570 DI, & 571 HD DI])
Settings: Auto, 2D Element; Default = Auto
Digital Depth Source specifies the beam that will be used to provide the depth
for the digital depth readouts (see Views and Setup Menu Tab: Select Readouts
for more information). It is important to set this menu option based on the
transducer that is connected to the control head, as follows:
• If a Down Imaging™ transducer is connected to the control head,
select Auto. Depending on the depth, Auto will automatically choose
the 2D conical beam or the Down Imaging™ beam to display depth in
the digital readout window. Auto is the default setting.
• If an accessory transducer is connected to the control head, select 2D
Element. For example, if you connect an ice transducer to your Down
Imaging™ unit, change the digital depth source to 2D Element in order
to display depth in the digital readout window. The 2D Element setting
should not be used with a Down Imaging™ transducer.
NOTE: Contact our Customer Resource Center to determine which accessory
transducers are compatible with your Humminbird® Fishing System, or visit our Web
site at humminbird.com.
Imaging Palette
(Down Imaging™ Views only [561 DI, 570 DI, and
571 HD DI])
Settings: Dark, Light, Inverse; Default = Dark
Imaging Palette allows you to select which monochrome palette you would like
to use for the Down Imaging™ display.
Sonar Menu Tab
61
Setup Menu Tab
From any view, press the MENU key twice to
access the tabbed Main Menu, then press the
RIGHT Cursor key until the Setup tab is selected.
NOTE: Menu options will vary depending on which
accessories are attached to the unit.
NOTE: Menu options can be expanded or simplified by
setting the User Mode to Advanced or Normal. See Main
Menu: User Mode for details.
Setup Menu Tab
62
Setup Menu Tab
Units - Depth
Settings: Domestic Models: Feet, Fathoms; International
Models: Meters; Default = Feet/Meters
Units - Depth selects the units of measure for all depth-related readouts.
Units - Temp
(International models only)
Settings: Celsius, Fahrenheit; Default = Celsius
Units - Temp selects the units of measure for all temperature-related readouts.
International models only.
Units - Distance
(with Temp/Speed only)
Settings: Domestic Models: Statute Miles, Nautical Miles,
Default = Statute Miles; International Models:
Meters/Kilometers, Meters/Nautical Miles, Feet/Statute
Miles, Feet/Nautical Miles, Default = Meters/Kilometers
Units - Distance selects the units of measure for all distance-related readouts,
and will appear in the menu if a Temp/Speed Accessory is connected and the
paddlewheel has moved at least once.
Units - Speed
(with Temp/Speed only)
Settings: Domestic Models: mph, kts; International
Models: kph; Default = mph/kph
Units - Speed selects the units of measure for speed-related readouts, and will
appear in the menu if a Temp/Speed Accessory is connected and the
paddlewheel has moved at least once.
Setup Menu Tab
63
User Mode
Settings: Normal, Advanced; Default = Normal
User Mode sets the menu system to Normal or Advanced. When set to Normal
(default setting), the basic set of menu options are shown in the menu system.
When set to Advanced, additional menu options are added to the menu system.
See Main Menu: User Mode for details.
Language
(International models only)
Settings: Various, Default = English
Language selects the display language for menus. International models only.
Triplog Reset
(with Temp/Speed only)
Settings: Follow screen instructions to activate.
Triplog Reset resets the Triplog to zero, and will appear in the menu if a
Temp/Speed Accessory is connected and the paddlewheel has moved at least
once.
The Triplog provides the following information: timer for elapsed time, distance
traveled since last reset, and average speed.
NOTE: See Views to find out how to display Triplog information on the screen.
Restore Defaults
Settings: Follow screen instructions to activate.
Use this menu choice with caution!
Restore Defaults resets ALL menu settings to their factory defaults.
64
Setup Menu Tab
Select Views
(Advanced)
Settings: Visible, Hidden; Default = Visible
Select Views allows you to set the available
views to hidden or visible in the view rotation. The
view will be removed from the view rotation if it
is set to Hidden and will be displayed in the view
rotation if it is set to Visible.
NOTE: See Views for more information.
550 Select Views Submenu
Select Readouts
(Advanced, Sonar View and
Down Imaging™ View only)
Settings: Various, Default = Off
The readout
position on
the screen
is shown in
the Select
Readouts
Window.
Select Readouts
Select Readouts sets the information to display
in each of the 6 fixed-position data windows
arranged around the left and bottom edges of
the Sonar View and Down Imaging™ View
screen. To leave the data window blank, select
Off. See Views to change the Select Readouts.
Data windows can display readouts from
supported accessories such as Temp/Speed.
Each data window can be empty or contain one
of the following information categories:
• Speed
• Temperature
• Triplog
• Voltage
Setup Menu Tab
65
NOTE: The availability of the digital readout information corresponds with the view
selected and the accessory attached.
Default Sonar View
Sonar View with Select Readouts
Depth Offset
(Advanced)
Settings: -10.0 to +10.0 ft or -3.0 to 3.0 m (International
models only); Default = 0.0 ft
Depth Offset will adjust the digital depth readout to indicate depth from the
waterline or boat's keel. Enter a positive vertical measurement from the
transducer to the waterline to read the depth from the waterline. Enter a
negative vertical measurement from the transducer to keel to read the depth
from the keel.
Temp. Offset
(Advanced)
Settings: -10.0 to +10.0 degrees; Default = 0
Temp. Offset will adjust the temperature readout by the amount entered.
66
Setup Menu Tab
Speed Calibration
(Advanced, with Temp/Speed only)
Settings: -20% to +20%; Default = 0%
Speed Calibration will adjust the speed readout by the percentage entered,
and will appear in the menu if a Temp/Speed Accessory is connected and the
paddlewheel has moved at least once.
Digits Format
(Advanced)
Settings: Small tenths, Large tenths, No tenths; Default =
Small tenths
Digits Format adds a tenth decimal place to the readouts such as Temperature
and Depth. Use the settings to change the display of the decimal place or
remove it from the digital readouts. Examples of the different settings are
displayed below. Also, see Select Readouts and Views.
Small tenths
Large tenths
No tenths
Demonstration
Settings: Off, Visible; Default = Visible
Demonstration controls whether the Demonstration Mode is visible or off. The
Demonstration Mode appears on the screen if you don’t press any keys during
the warning screen at power up. Menu settings cannot be saved in
Demonstration (see Power On and Start-Up Options Menu).
Sound Control
Settings: No Sounds, Alarms Only, All Sounds; Default =
All Sounds
Sound Control allows you to set when the control head will beep or sound
because of key presses and/or alarms.
Setup Menu Tab
67
Maintenance
Your Humminbird® fishfinder is designed to provide years of trouble free
operation with very little maintenance. Use the following procedures to ensure
your Humminbird® continues to deliver top performance.
Control Head Maintenance
It is important to consider the following precautions when using your
Humminbird® control head:
• Chemicals, such as those found in bug spray and sunscreen, may cause
permanent damage to the control head screen. Such damage is not
covered by the warranty.
• NEVER leave the control head in a closed car or trunk. The high
temperatures generated in hot weather can damage the electronics.
Use the following information to keep the control head and screen clean.
• Screen: To clean the control head screen, use a mild soap (such as a
non-abrasive liquid hand soap) and warm water. Wipe the screen dry
with a soft cloth. Be careful to avoid scratching the screen. If water
spots remain, use a solution of water and vinegar.
WARNING! Do not use a chemical glass cleaner on the screen. Chemicals in the
solution may cause cracking in the lens of the unit.
NOTE: Do not wipe the screen while dirt or grease is on the screen.
• Control Head: If the control head comes into contact with salt spray,
wipe the affected surfaces with a cloth dampened with fresh water.
Transducer Maintenance
Use the following information to maintain the transducer operation.
• If your boat remains in the water for long periods of time, algae and
other marine growth can reduce the effectiveness of the transducer.
Periodically clean the face of the transducer with liquid detergent.
NOTE: To clean the transducer, you may need to pivot the transducer up in the bracket.
68
Maintenance
• If your boat remains out of the water for a long period of time, it may
take some time to wet the transducer when it is returned to the water.
Small air bubbles can climb to the surface of the transducer and
interfere with proper operation. These bubbles dissipate with time, or
you can wipe the face of the transducer with your fingers after the
transducer is in the water.
Maintenance
69
Troubleshooting
Before contacting the Humminbird® Customer Resource Center, please read the
following section. Taking the time to review these troubleshooting guidelines
may allow you to solve a performance problem yourself, and therefore avoid
sending your unit back for repair.
Fishfinder Doesn’t Power Up
If your Fishfinder doesn’t power up, use the Installation Guide that also comes
with it for specific confirmation details, making sure that:
• The power cable is properly connected to the Fishfinder control head.
• The power cable is wired correctly, with red to positive battery terminal
and black to negative terminal or ground.
• The fuse is operational.
• The battery voltage of the power connector is at least 10 Volts.
Correct any known problems, including removing corrosion from the battery
terminals or wiring, or actually replacing the battery if necessary.
Fishfinder Defaults to Simulator with a Transducer Attached
A connected and functioning transducer will cause the newly-started
Fishfinder to go into Normal operating mode automatically. If, when you power
up the Fishfinder, it goes into Simulator mode automatically, even though a
transducer is already connected, this means that the control head is not
detecting the transducer. Perform the following troubleshooting tasks:
• Using the Installation Guide that also comes with your Fishfinder, check
to make sure that the transducer cable is securely connected to the
Fishfinder. Reconnect if necessary, and power up the Fishfinder again
to see if this fixes the problem.
• Replace the non-functioning transducer with a known good transducer
if available and power up the control head again.
• Check the transducer cable. Replace the transducer if the cable is
damaged or corroded.
70
Troubleshooting
Display Problems
There are several main conditions or sources of possible interference that may
cause problems with the quality of the information displayed on the control
head. Look in the following table for some symptoms of display problems and
possible solutions:
Problem
Possible Cause
The control head loses
power at high speeds.
If the power output of your boat’s engine is unregulated,
the control head may be protecting itself using its
over-voltage protection feature. Make sure the input
voltage does not exceed 20 Volts.
When the boat moves
at higher speeds, the
bottom disappears or
suddenly weakens, or
the display contains
gaps.
The transducer position may need to be adjusted. A mix of
air and water flowing around the transducer (cavitation)
may be interfering with the interpretation of sonar data.
See your Installation Guide for suggestions on adjusting the
transducer position.
There are no fish
detected, even when
you know they are in
the water under the
boat, or sonar readings
seem weak or faulty.
Electrical noise from the boat’s engine may be interfering
with sonar reception. See Finding the Cause of Noise for
more information.
Sonar readings may be affected if the transducer is not
positioned correctly (i.e. mounted at an angle, not straight
down), or there is some kind of mechanical interference,
either because it is mounted inside a hull that is too thick
for proper sonar transmission, the bond between the
transducer and the hull is not airtight, or because the
transducer is dirty. Check with your Installation Guide for
guidance on re-positioning the transducer, and make sure
the transducer is clean.
Low battery voltage may be affecting the power of signal
transmission.
Electrical noise from the boat’s engine may be interfering
with sonar reception. See Finding the Cause of Noise for
more information.
Troubleshooting
71
Finding the Cause of Noise
Electrical noise usually affects the display with many black dots at high speeds,
and high sensitivity readings. One or more of the following sources can cause
noise or interference:
Possible Source of Noise
Isolation
Other electronic devices
Turn off any nearby electronic devices to see if
the problem goes away, then turn them on one
at a time to see if the noise re-appears.
The boat’s engine
To determine whether the boat’s engine is the
source of the noise, increase the RPMs while
the boat is in neutral and stationary to see if
the noise increases proportionately; if noise
appears when you rev the engine, the
problem could be the spark plugs, alternator,
or tachometer wiring. Replace the spark plugs
with resistor plugs, install an alternator filter,
or route the control head power and
transducer cables away from the engine
wiring.
Cavitation from the boat’s
propeller
Turbulence created by the propeller can cause
noise; make sure the transducer is mounted
at least 15” (38 cm) from the propeller, and that
the water flows smoothly over the face of the
transducer at all times.
72
Troubleshooting
550 Specifications
Depth Capability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 800 ft (243 m)
Power Output . . . . . . . . . . . . . . . 200 Watts (RMS), 1600 Watts (Peak to Peak)
Operating Frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . 200 kHz (Single Beam)
Area of Coverage . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20° @ -10 dB in 200 kHz
Target Separation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 1/2 Inches (63.5 mm)
Power Requirement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-20 VDC
LCD Matrix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 240 V x 240 H
Transducer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . XNT 9 20 T
Transducer Cable Length . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 ft (6 m)
Current Draw . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 300 mA
IPX Rating. . . . . . . . . . . . IP67 Waterproof/Submersible @ 1 m for 30 minutes
and dust tight
NOTE: Humminbird® verifies maximum stated depth in saltwater conditions, but actual
depth performance may vary due to transducer installation, water type, thermal layers,
bottom composition and slope.
NOTE: Product specifications and features are subject to change without notice.
Specifications
73
560 Specifications
Depth Capability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 800 ft (243 m)
Power Output . . . . . . . . . . . . . . . 250 Watts (RMS), 2000 Watts (Peak to Peak)
Operating Frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200 kHz (Single Beam)
Area of Coverage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20° @ -10 dB in 200 kHz
Target Separation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 1/2 Inches (63.5 mm)
Power Requirement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-20 VDC
LCD Matrix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 320 V x 320 H
Transducer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . XNT 9 20 T
Transducer Cable Length . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 ft (6 m)
Current Draw . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 300 mA
IPX Rating. . . . . . . . . . . . IP67 Waterproof/Submersible @ 1 m for 30 minutes
and dust tight
NOTE: Humminbird® verifies maximum stated depth in saltwater conditions, but actual
depth performance may vary due to transducer installation, water type, thermal layers,
bottom composition and slope.
NOTE: Product specifications and features are subject to change without notice.
74
Specifications
561 Specifications
Depth Capability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1200 ft (366 m)
Power Output . . . . . . . . . . . . . . . 250 Watts (RMS), 2000 Watts (Peak to Peak)
Operating Frequency . . . . . . . . . . . . . 200 kHz and 83 kHz (DualBeam PLUS™)
Area of Coverage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60° @ -10 dB in 83 kHz
20° @ -10 dB in 200 kHz
Target Separation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 1/2 Inches (63.5 mm)
Power Requirement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-20 VDC
LCD Matrix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 320 V x 320 H
Transducer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . XNT 9 20 T
Transducer Cable Length . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 ft (6 m)
Current Draw . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 300 mA
IPX Rating. . . . . . . . . . . . IP67 Waterproof/Submersible @ 1 m for 30 minutes
and dust tight
NOTE: Humminbird® verifies maximum stated depth in saltwater conditions, but actual
depth performance may vary due to transducer installation, water type, thermal layers,
bottom composition and slope.
NOTE: Product specifications and features are subject to change without notice.
Specifications
75
561 DI Specifications
Depth Capability . . . . . . . . . . . . . . . . . . . . . . . . 250 ft (76 m) Down Imaging™,
600 ft (183 m) Traditional Sonar
Power Output. . . . . . . . . . . . . . . . . . . . . 500 W (RMS), 4000 W (Peak to Peak)
Operating Frequency . . . . . . . . . . . . . 455 kHz and 800 kHz (Down Imaging™);
200 kHz and 455 kHz (Traditional Sonar)
Area of Coverage . . . . . . . . . . . . . . Down Imaging™: 75° @ -10 dB in 455 kHz
45° @ -10 dB in 800 kHz
Traditional Sonar: 25° @ -10 dB in 200 kHz
16° @ -10 dB in 455 kHz
Target Separation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 1/2 Inches (63.5 mm)
Power Requirement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-20 VDC
LCD Matrix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 320 V x 320 H
Transducer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . XNT 9 DI T
Transducer Cable Length . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 ft (6 m)
Current Draw . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 300 mA
IPX Rating. . . . . . . . . . . . IP67 Waterproof/Submersible @ 1 m for 30 minutes
and dust tight
NOTE: Humminbird® verifies maximum stated depth in saltwater conditions, but actual
depth performance may vary due to transducer installation, water type, thermal layers,
bottom composition and slope.
NOTE: Product specifications and features are subject to change without notice.
76
Specifications
570 Specifications
Depth Capability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 800 ft (243 m)
Power Output . . . . . . . . . . . . . . . 250 Watts (RMS), 2000 Watts (Peak to Peak)
Operating Frequency . . . . . . . . . . . . . 200 kHz and 83 kHz (DualBeam PLUS™)
Area of Coverage. . . . . . . . . . . . . . DualBeam PLUS™: 60° @ -10 dB in 83 kHz
20° @ -10 dB in 200 kHz
Target Separation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 1/2 Inches (63.5 mm)
Power Requirement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-20 VDC
LCD Matrix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 320 V x 320 H
Transducer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . XNT 9 20 T
Transducer Cable Length . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 ft (6 m)
Current Draw . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 300 mA
IPX Rating. . . . . . . . . . . . IP67 Waterproof/Submersible @ 1 m for 30 minutes
and dust tight
NOTE: Humminbird® verifies maximum stated depth in saltwater conditions, but actual
depth performance may vary due to transducer installation, water type, thermal layers,
bottom composition and slope.
NOTE: Product specifications and features are subject to change without notice.
Specifications
77
570 DI Specifications
Depth Capability . . . . . . . . . . . . . . . . . . . . . . . . 250 ft (76 m) Down Imaging™,
600 ft (183 m) Traditional Sonar
Power Output . . . . . . . . . . . . . . . . . . . . . 500 W (RMS), 4000 W (Peak to Peak)
Operating Frequency . . . . . . . . . . . . . 455 kHz and 800 kHz (Down Imaging™);
200 kHz and 455 kHz (Traditional Sonar)
Area of Coverage . . . . . . . . . . . . . . Down Imaging™: 75° @ -10 dB in 455 kHz
45° @ -10 dB in 800 kHz
Traditional Sonar: 25° @ -10 dB in 200 kHz
16° @ -10 dB in 455 kHz
Target Separation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 1/2 Inches (63.5 mm)
Power Requirement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-20 VDC
LCD Matrix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 640 V x 320 H
Transducer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . XNT 9 DI T
Transducer Cable Length . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 ft (6 m)
Current Draw . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 300 mA
IPX Rating. . . . . . . . . . . . IP67 Waterproof/Submersible @ 1 m for 30 minutes
and dust tight
NOTE: Humminbird® verifies maximum stated depth in saltwater conditions, but actual
depth performance may vary due to transducer installation, water type, thermal layers,
bottom composition and slope.
NOTE: Product specifications and features are subject to change without notice.
78
Specifications
571 HD DI Specifications
Depth Capability . . . . . . . . . . . . . . . . . . . . . . . . 250 ft (76 m) Down Imaging™,
600 ft (183 m) Traditional Sonar
Power Output . . . . . . . . . . . . . . . . . . . . . 500 W (RMS), 4000 W (Peak to Peak)
Operating Frequency . . . . . . . . . . . . . 455 kHz and 800 kHz (Down Imaging™);
200 kHz and 455 kHz (Traditional Sonar)
Area of Coverage . . . . . . . . . . . . . . Down Imaging™: 75° @ -10 dB in 455 kHz
45° @ -10 dB in 800 kHz
Traditional Sonar: 25° @ -10 dB in 200 kHz
16° @ -10 dB in 455 kHz
Target Separation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 1/2 Inches (63.5 mm)
Power Requirement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-20 VDC
LCD Matrix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 640 V x 320 H
Transducer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . XNT 9 DI T
Transducer Cable Length . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 ft (6 m)
Current Draw . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 300 mA
IPX Rating. . . . . . . . . . . . IP67 Waterproof/Submersible @ 1 m for 30 minutes
and dust tight
NOTE: Humminbird® verifies maximum stated depth in saltwater conditions, but actual
depth performance may vary due to transducer installation, water type, thermal layers,
bottom composition and slope.
NOTE: Product specifications and features are subject to change without notice.
Specifications
79
ENVIRONMENTAL COMPLIANCE STATEMENT: It is the intention of Johnson Outdoors
Marine Electronics, Inc. to be a responsible corporate citizen, operating in compliance with
known and applicable environmental regulations, and a good neighbor in the communities
where we make or sell our products.
WEEE DIRECTIVE: EU Directive 2002/96/EC “Waste of Electrical and 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 compliance may not be required in 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. Johnson Outdoors Marine Electronics, Inc. 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.
80
Specifications
Glossary
Sonar Terms:
Beam (Sonar Beam) The wide, cone-shaped projection of sound waves formed as sound
travels underwater. See Cone Angle.
Bottom Contour The profile of the bottom graphed to the display as the depth changes.
Bottom Hardness The density (or composition) of the bottom. Varying levels of hardness
can be determined by interpreting the “thickness“ of the main sonar return. Hard returns
appear thin and black, softer returns appear thicker and less black. It is important to note
that a sonar return from a sloping bottom can have the appearance of a softer bottom.
Cavitation The effect of air bubbles created as the propeller rotates and the boat moves
through the water.
Cone Angle The angular measurement of the sonar beam at a specific dB down point
(i.e. -10 dB). See dB Down Point.
Dead Zone The area of the sonar beam that receives the sonar signal after the main
bottom return. Fish and other objects close to the bottom that fall within the dead zone will
probably not be visible in the sonar beam. Precision sonar beams, such as the Humminbird®
20° beam, have a smaller dead zone than wider sonar beams.
Decibel The measurement for sound pressure level, or “intensity”of the sonar return. See
dB Down Point.
dB Down Point The standard decibel level at which the sonar cone angle is measured,
and is written as “@ -10 dB” or “@ -3 dB“. Measurements at smaller down points (bigger
negative numbers) indicate that the less intensive sonar signals are being used for the
measurement.
Display, FSTN (Film Super-Twist Nematic) FSTN is a monochrome display technology
characterized by black, high-contrast pixels. All monochrome fixed mount Humminbird®
products use FSTN technology.
Frequency A measure of the number of sound wave cycles per second of a sound impulse
transmitted underwater. A typical frequency for fishfinders is 200 kHz, which offers a good
balance of performance under many conditions. Lower frequencies, such as 50 kHz, are
capable of penetrating to greater depths, but with less resolution. Higher frequencies, such
as 455 kHz, offer greater resolution, but are limited in depth performance. Humminbird®
uses a variety of frequencies that are optimized for specific applications.
Glossary
81
Grayscale The use of varying shades of gray to represent the strength of the sonar signal
on the display. Traditionally, the strongest sonar signals are represented in black, and
progressively weaker signals are represented in progressively lighter shades of gray.
Noise The unintentional, external sound waves that interfere with the optimal operation
of sonar. Noise appears as random “dots“ on the display and is caused by a variety of
sources. Many Humminbird® products have a Noise Filter menu setting that allows the user
to clear the screen of noise that is difficult to eliminate (also, see Troubleshooting).
Pixels The “picture elements“, or small square blocks, that make up the image on the LCD.
Measured as a vertical by horizontal number (i.e. 640V x 320H), this key specification
typically indicates the quality of resolution. In fishfinders, the total resolution (vertical
multiplied by horizontal) is often less important than the “Vertical Pixel“ resolution because
a greater number of vertical pixels provide finer resolution of targets detected by sonar.
Sonar information on the horizontal axis can vary greatly, depending on boat speed and the
Chart Speed setting.
Power Output The amount of sound energy emitted into the water by the transducer’s
transmitter. Power output is measured using either RMS (Root Mean Square) or P-T-P (Peakto-Peak) measurement systems. Either method is acceptable, but it is important when
comparing power outputs, to make sure that the same measurement system is being used
for both outputs, because P-T-P numbers are 8 times higher than RMS numbers. Greater
power output allows the sonar signal to penetrate through weeds and thermoclines, reach
deeper depths and operate more effectively in noisy environments, such as when the boat
is running at high speed.
Pulse Width (Pulse Length) The length of time that a sonar sound burst is transmitted
into the water. Shorter pulse widths provide better target separation, but cannot travel to
great depths. Longer pulse widths provide better depth penetration, but result in poorer
target separation. Humminbird® varies pulse width based on depth to optimize both target
separation and depth performance. See Target Separation.
Second Return Describes the appearance of a second sonar return below the primary
sonar return (bottom contour) at exactly twice the true depth. The second return is caused
by the same sonar energy bouncing off the bottom once, rebounding to the water surface
and then traveling back down to the bottom to be reflected again. Second returns are more
common in shallow water and over hard bottoms; it is possible to see a third sonar return
under some circumstances. The second return provides useful information to help
determine bottom hardness, as areas with harder bottoms will generally create a second
return. The second return can be used as a guide to set Sensitivity when in shallower water.
82
Glossary
SONAR (SOund and NAvigation Ranging) Sonar technology uses precision sound
bursts transmitted underwater to determine the distance and other attributes of objects in
the water. Distance can be determined because the speed of sound in water is constant,
and the time for the signal to return is measured. Sound also travels very quickly
underwater, making sonar a responsive, cost-effective tool. Sonar is the basic technology
behind all recreational and commercial fishfinding and depthfinding devices.
Sonar Update Rate
The number of times per second that the transducer’s
transmitter/receiver sends and receives sonar signals. A very fast sonar update rate collects
more information and provides a more detailed image of the bottom, fish, and structure.
Many Humminbird® units operate at up to 40 times per second when in single frequency
operation. Due to the limitation of the speed of sound in water, the update rate begins to
slow as depth increases to deeper than 50 feet. In very shallow water (less than 10 feet),
however, update rates as much as 60 times per second can be achieved.
Speed The rate at which the boat moves through the water. Boat speed can be measured
as Speed Over Ground or Speed Through Water. Speed Over Ground is provided by GPS, and
is the measurement of the boats progress across a given distance. Speed Through Water is
provided by a speed paddlewheel, and is the measurement of the flow past the boat, which
may vary depending on current speed and direction. Speed Through Water is most critical
for anglers using downriggers, as it impacts the running depth of the down riggers. Speed
Over Ground is optimal for navigation, as accurate destination times can be derived from
this measurement. Humminbird® products allow for input and display of both sources.
Structure A general term for objects on the bottom that present a discontinuity and are
a likely attractor for fish. This includes bottom contour features (drop-offs, humps, and
holes), standing structure (stumps, timbers, brush piles), and a wide range of other
potential objects (sunken boats, reefs).
Surface Clutter A phenomenon where sonar returns are reflected off of tiny objects near
the surface of the water, including algae and even air bubbles. Typically, saltwater
environments have significantly greater surface clutter than freshwater due to continuous
wind and wave action that causes aeration at the surface.
Target Separation The measurement of minimum distance that a fishfinder needs to be
able to recognize two very close objects as two distinct targets (i.e. two fish hanging very
close, or a fish hanging very close to structure). Humminbird® fishfinders provide a very
good 2 1/2 inches of target separation in shallower than 100 feet of depth. Target
separation decreases as depth increases due to the need for longer Pulse Width to achieve
greater depth. See Pulse Width.
Glossary
83
Thermoclines Water layer(s) of distinctly different temperatures that create a sonar
reflection due to the density of the differing water temperatures. Typically a thermocline will
appear as a continuous band across the display at some distance above the bottom contour.
Thermoclines are of interest to anglers because fish will suspend above or below the
thermocline as they seek the optimum temperature and oxygen levels.
Time Variable Gain (TVG) A processing step applied to the sonar return to “normalize“
the data so that objects of equal size (i.e. fish) appear to be the same size, even if they are
separated by a good distance.
Transducer The transducer is part of the sonar system, which mounts on the boat and is
in contact with the water, that converts the electrical energy from the transmitter into
sound energy, and that forms the sonar beam in turn. Internally, the transducer consists of
one or more piezo electric disks that expand by very minute amounts to create the sound
wave. This element also works in reverse, converting the returned sound energy back into
an electrical signal that the receiver interprets. See SONAR.
Zoom A feature that focuses on a smaller area of the bottom to provide enhanced
resolution. With enhanced resolution, the angler can more easily see fish hanging in
structure or multiple fish hanging close together.
Zoom, Bottom Lock Bottom Lock Zoom is a feature that focuses on a smaller area just
above the bottom to provide enhanced resolution. Unlike regular zoom, it continuously
graphs the bottom at a constant point on the display regardless of changes in depth. This
“flattens“ out the bottom contour, but is effective at showing fish on or near the bottom,
and is preferred by many saltwater anglers.
84
Glossary
Contact Humminbird®
Contact the Humminbird® Customer Resource Center
in any of the following ways:
By Telephone:
(Monday - Friday 8:00 a.m. to 4:30 p.m. Central Standard Time):
1-800-633-1468
By e-mail:
(typically we respond to your e-mail within three business days):
[email protected]
For direct shipping, our address is:
Humminbird®
Service Department
678 Humminbird Lane
Eufaula, AL 36027 USA
85
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