Humminbird 700 series User manual

700 Series™
Operations Manual
700 Series™
Operations Manual 531524-1_B

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Thank You!
Thank you for choosing Humminbird®, America's #1 name in fishfinders.
Humminbird® has built its reputation by designing and manufacturing top-quality,
thoroughly reliable marine equipment. Your Humminbird® is designed for trouble-free
use in even the harshest marine environment. In the unlikely event that your
Humminbird® does require repairs, we offer an exclusive Service Policy - free of
charge during the first year after purchase, and available at a reasonable rate after
the one-year period. For complete details, see the separate warranty card included
with your unit. We encourage you to read this operations manual carefully in order to
get full benefit from all the features and applications of your Humminbird® product.
Contact our Customer Resource Center at either 1-800-633-1468 or visit our web-
site at www.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.
Handling and/or opening this unit may result in exposure to lead, in the form of solder.
WARNING! This product contains lead, a chemical known to the state of California to
cause cancer, birth defects and other reproductive harm.
The WEEE Directive aims to minimize the impact of end-of-life electrical and elec-
tronic equipment on human health and the environment. Therefore, any product
bearing the WEEE symbol must not be included with unsorted municipal waste.
Instead, it must be separately collected, treated and recycled.
For proper disposal of this equipment, please contact the Johnson Outdoors distributor or
see www.humminbird.com.
Humminbird®, DualBeam PLUS™, SmartCast®, Selective Fish ID+™, WhiteLine®, QuadraBeam
PLUS™, RTS®, X-Press™ Menu, Fish ID+™, WideSide®, Structure ID®, TrueArch™,
UltraBlack™, Angler Profile Presets™, and WeatherSense® are trademarked by or registered
trademarks of Humminbird®.
© 2008 Humminbird®, Eufaula AL, USA. All rights reserved.
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.

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How Sonar Works 1
DualBeam PLUS™ Sonar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
QuadraBeam PLUS™ Sonar (with optional-purchase QuadraBeam PLUS™ transducer) . . . 4
WideSide® Sonar (with optional-purchase WideSide® transducer) . . . . . . . . . . . . . . . . . . . . 5
Universal Sonar 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
What’s On the Display 7
Views 9
Sonar View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Understanding Sonar History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Real Time Sonar (RTS®) Window . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Freeze Frame and Cursor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Bottom Presentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Sonar Zoom View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
200/83 kHz Split Sonar View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Big Digits View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Circular Flasher View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Side Beam View (with optional-purchase QuadraBeam PLUS™ transducer) . . . . . . . . . . . 20
WideSide® View (with optional-purchase WideSide® transducer) . . . . . . . . . . . . . . . . . . . 23
Key Functions 24
POWER/LIGHT Key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
VIEW Key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
MENU Key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
4-WAY Cursor Control Key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
EXIT Key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Accessory Bus 27
Powering Up the Unit 28
The Menu System 29
Start-Up Options Menu 31
Normal Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Simulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
System Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Self Test. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Accessory Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
PC Connect (with PC Connect Cable Only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Table of Contents

Sonar X-Press™ Menu 35
Side (WideSide® transducer: WideSide® view only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Sensitivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Upper Range (Advanced: Sonar, Split Sonar, Big Digits and Circular Flasher Views only) . 38
Lower Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Side Beam Range (WideSide® transducer: WideSide® view only) . . . . . . . . . . . . . . . . . . . 40
Chart Speed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Bottom View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Quad Layout (with optional-purchase QuadraBeam PLUS™ transducer,
Side Beam View only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Zoom Level (Sonar Zoom view only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Bottom Lock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Bottom Range (Sonar Zoom View only, when Bottom Lock is On) . . . . . . . . . . . . . . . . . . . 44
Sonar Menu Tab 45
Beam Select . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Fish ID+™. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Fish ID Sensitivity. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Real Time Sonar (RTS®) Window . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Zoom Width . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
83 kHz Sensitivity (Advanced) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
455 kHz Sensitivity (Advanced, with QuadraBeam PLUS™ transducer) . . . . . . . . . . . . . . . 50
WideSide® Sensitivity (Advanced, with WideSide® transducer) . . . . . . . . . . . . . . . . . . . . . 51
Depth Lines (Advanced) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Surface Clutter (Advanced) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Noise Filter (Advanced) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Max Depth (Advanced) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Water Type (Advanced) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Transducer Select . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Alarms Menu Tab 57
Depth Alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Fish ID Alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Low Battery Alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Aux. Temp. Alarm (with optional-purchase temp. probe or Temp/Speed only) . . . . . . . . . . 59
Temp Alarm. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Alarm Tone . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Setup Menu Tab 61
Units - Depth . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
Units - Temp (International only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
Table of Contents
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Units - Distance (with Temp/Speed or GPS receiver) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
Units - Speed (with Temp/Speed or GPS receiver) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
User Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Language (International only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Triplog Reset (with Temp/Speed or GPS receiver) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
Restore Defaults . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
Select Readouts (Advanced, Sonar view only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
Depth Offset (Advanced). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
Aux. Temp. Offset (Advanced; with
optional-purchase temp. probe or Temp/Speed only) . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
Temp Offset (Advanced) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
Speed Calibration (Advanced, with Temp/Speed only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
Digits Format (Advanced) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
NMEA Output (Advanced) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
Views Menu Tab 71
Accessories Menu Tab 72
Troubleshooting 73
700 Series™ Doesn’t Power Up. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
700 Series™ Defaults to Simulator with a Transducer Attached . . . . . . . . . . . . . . . . . . . 73
Display Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
Finding the Cause of Noise . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
700 Series™ Fishing System Accessories 76
Specifications 78
Glossary 81
Contact Humminbird® 91
NOTE: Entries in this Table of Contents which list (International only) are only available on
products sold outside of the US by our authorized International Distributors. To obtain a list of
authorized International Distributors, please visit our website at www.humminbird.com or
contact our Customer Resource Center at 1-800-633-1468 to locate the distributor nearest you.
NOTE: Entries in this Table of Contents which list (with Temp/Speed or GPS Receiver), or (with
PC Connect Cable Only) require the purchase of separate accessories. You can visit our website
at www.humminbird.com to order these accessories online or contact our Customer Resource
Center at 1-800-633-1468.
Table of Contents

How Sonar Works
Sonar technology is based on sound waves. The 700 Series™ Fishing System
uses sonar to locate and define structure, bottom contour and composition,
as well as depth directly below the transducer.
Your 700 Series™ Fishing System sends a sound wave signal and determines
distance by measuring the time between the transmission of the sound wave
and when the sound wave is reflected off of an object; it then uses the
reflected signal to interpret location, size, and composition of an object.
Sonar is very fast. A sound wave can travel from the surface to a depth of
240 ft (70 m) and back again in less than 1/4 of a second. It is unlikely that
your boat can "outrun" this sonar signal.
SONAR is an acronym for SOund and
NAvigation Ranging. Sonar utilizes precision
sound pulses or "pings" which are emitted into
the water in a teardrop-shaped beam.
The sound pulses "echo" back from objects in
the water such as the bottom, fish and other
submerged objects. The returned echoes are
displayed on the LCD screen. Each time a new
echo is received, the old echoes are moved
across the LCD, creating a scrolling effect.
When all the echoes are viewed side by side, an
easy to interpret "graph" of the bottom, fish and
structure appears.
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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.

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DualBeam PLUS™ Sonar
Your 700 Series™ Fishing System uses a 200/83 kHz
DualBeam PLUS™ sonar system with a wide (60°)
area of coverage. DualBeam PLUS™ sonar has a
narrowly focused 20° center beam, surrounded by a
second beam of 60°, expanding your coverage to an
area equal to your depth. In 20 feet of water, the
wider beam covers an area 20 feet wide. DualBeam
PLUS™ sonar returns can be blended together,
viewed separately or compared side-by-side.
DualBeam PLUS™ is ideal for a wide range of
conditions - from shallow to very deep water in both
fresh and salt water. Depth capability is affected by
such factors as boat speed, wave action, bottom
hardness, water conditions and transducer
installation.

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QuadraBeam PLUS™ Sonar
(with optional-purchase QuadraBeam PLUS™
transducer)
Your 700 Series™ Fishing System also
supports QuadraBeam PLUS™ sonar with
the purchase of an additional QuadraBeam
PLUS™ transducer. QuadraBeam PLUS™
sonar provides an extremely wide 90° area
of coverage. QuadraBeam PLUS™ starts
with two fan-shaped 35° 455 kHz Side
Structure locating sonar beams to spot fish,
bait and structure to the left and right of the
boat over an area of the bottom that’s
always equal to twice your depth. For a
detailed view below the boat, QuadraBeam
PLUS™ uses DualBeam PLUS™ technology,
with precision 20° and wide 60° beams.
QuadraBeam PLUS™ finds more fish faster,
and can even tell you where to put your bait
by showing if fish are to the left, right or
directly beneath your boat.
90° Total Coverage
Bottom Coverage = 2 x Depth
35° 60° 20° 35°
455 kHz 455 kHz
83 kHz
200 kHz

WideSide® Sonar
(with optional-purchase WideSide® transducer)
Your 700 Series™ Fishing System also
supports WideSide® sonar with the
purchase of an additional WideSide®
transducer. The WideSide® transducer is a
specialized "side-looking" transducer that is
extremely useful for bank fishing or looking
for bait fish in open water. The WideSide®
transducer uses three different sonar
elements that transmit signals to the left,
right and straight down from your boat. The
downward beam is 200 kHz with a 24° area
of coverage. This beam maintains a
continuous digital depth readout from the
bottom directly beneath your boat. The side
beams are 455 kHz with a 16° area of
coverage. The side-looking elements can be
used independently, or together to locate
targets near the surface of the water on
either side of your boat.
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Universal Sonar 2
Your 700 Series™ Fishing System supports Universal Sonar 2, a state-of-the-
art, integrated and protected transducer that is built into the lower unit of
Minnkota trolling motors. With Universal Sonar 2, all wiring is concealed inside
the indestructible composite shaft—out of sight and out of harm’s way, with
no clamps, ties, or exposed wires. Universal Sonar 2 features new temperature
sensing and the performance of DualBeam PLUS™ technology (available with
all Humminbird® DualBeam PLUS™ models). An expanded view and greater
bottom detail gives you a totally new perspective of the water below, along
with optimal sonar performance to help you find fish.
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What’s On the Display
The 700 Series™ Fishing System can display a variety of useful information
NOTE: Entries in this view that list (with Temp/Speed or GPS Receiver) are available if either
information from the GPS receiver will be displayed on the view.
Timer - elapsed time with Temp/Speed
Accessory or GPS Receiver.
Average Speed - average speed reading with
Temp/Speed Accessory or GPS Receiver.
Depth - water depth; can be set to alarm
when the water becomes too shallow.
Speed - if a Temp/Speed accessory or GPS
Receiver is attached, the 700 Series™ can
display the speed of the boat, and can keep a
Triplog of nautical or statute miles traveled.
Second Sonar Return - when the sonar
signal 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.
Cursor Dialog Box - indicates cursor
the bottom directly below the cursor.
Bait Ball
Hard Bottom
Rocky Bottom
Cursor - available in Freeze Frame and
to provide depth of a sonar return and
Distance - distance traveled with
Temp/Speed Accessory or GPS Receiver.
Temperature - water surface temperature.

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about the area under and adjacent to your boat, including the following items:
device is connected to the Fishing System. If both devices are connected, then only the
depth on the display and the depth of
Battery Voltage - the voltage of the boat’s
battery; can be set to alarm if the voltage
falls below a certain point.
RTS® (Real Time Sonar) Window
Soft Bottom
Thermoclines - layers of water with different
temperatures that appear at different depths
and different times of the year. A thermocline
typically appears as a continuous band of
many gray levels moving across the display at
the same depth.
Structure - where fish may be hiding.
Fish - fish are displayed as arches and/or
fish icons, and the unit can be set to alarm
when a fish of a certain size is detected.
When a target is detected and Fish ID+
is on, a Fish ID+™ symbol with depth is
displayed. The size of the symbol shows 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.
can be positioned in the Sonar View
bottom depth below the cursor.
83 kHz, Wide Beam Hollow Fish Symbol
200 kHz, Narrow Beam Shaded Fish Symbol

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Views
The views available on your Fishing System are:
• Sonar View
• Zoom View
• 200/83 kHz Split Sonar View
• Big Digits View
• Circular Flasher View
• Side Beam View
• WideSide® View.
Sonar View is the default view. When the VIEW key is pressed, the display
cycles through the available views. When the EXIT key is pressed, the display
cycles through the available views in reverse order. Any view can be hidden or
displayed as part of the view rotation using the Views Menu tab.
NOTE: When you change any menu settings that affect the sonar, the view will update
immediately (i.e. you don’t have to exit the menu to apply the change to the screen). For
instance, by switching between "Inverse" and "Structure ID®" from the X-Press™ Menu it is
possible to quickly alternate between the two viewing methods.
NOTE: Side Beam View and WideSide® View require the purchase of the QuadraBeam PLUS™
transducer for the Side Beam View and the WideSide® transducer for the WideSide® View. You
can visit our website at www.humminbird.com to order these accessories online or contact
our Customer Resource Center at 1-800-633-1468.

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Sonar View
Sonar View presents a historical log of sonar returns. Depth is always
displayed. Readouts for temperature and speed are automatically displayed if
the appropriate accessory is connected. The most recent sonar returns are
charted on the right side of the window; as new information is received, the
older information is moved across the display to the left. A Digital Depth
Readout is displayed in the upper left corner. A scale with Upper and Lower
Depth Range readouts appears along the right edge of the Sonar View. The
scale indicates the distance from the surface of the water to a depth range
sufficient to show the bottom. Depth Range is automatically selected to keep
the bottom visible on the display, although you can adjust it manually as well
(see Sonar X-Press™ Menu). Six Digital Readouts display information from
optional-purchase accessories.
These information boxes can be customized to show only the information
desired (see Setup Menu Tab, Select Readouts).
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.
Sonar View
Upper Depth
Range
Sonar History
Window
Depth
Cursor
Dialog Box
Temperature
Triplog
Lower Depth
Range
RTS® Window
Cursor

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Understanding Sonar History
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.

Real Time Sonar (RTS®) Window
A Real Time Sonar (RTS®) Window appears on the right side of the display in
the Sonar View only. The RTS® Window always updates at the fastest rate
possible for depth conditions and shows only the returns from the bottom,
structure and fish that are within the transducer beam. The RTS® Window plots
the depth and intensity of a sonar return (see Sonar Menu - RTS® Window).
Freeze Frame and Cursor
Freeze Frame - Pressing any arrow on the 4-WAY Cursor Control key will freeze
the screen and a cursor will be displayed on the screen. The cursor can be
positioned on the display using the 4-WAY Cursor Control key to determine the
depth of any sonar return. The RTS® Window continues to update in Freeze
Frame. In addition, see the effects of menu setting changes with Instant Image
Update. Pressing EXIT will exit Freeze Frame and the display will start to scroll.
Freeze Frame is available in Sonar, Sonar Zoom and 200/83 kHz Split Sonar Views.
The Narrow RTS® Window
indicates the sonar intensity
through the use of grayscale.
The grayscale used matches
the bottom view grayscale
setting used in the sonar
history window (i.e. 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.
The
Wide RTS® Window
indicates the sonar intensity
through the use of a bar
graph. The length of the
plotted return provides an
indication of whether the
return is weak or strong. The
depth of the sonar return is
indicated by the vertical
placement of the return on
the display depth scale. The
Wide RTS® Window does not
make use of grayscale.
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Bottom Presentation
As the boat moves, the unit charts the changes in depth on the display to create
a profile of the Bottom Contour. The type of bottom can be determined from
the return charted on the display. A Hard Bottom such as compacted sediment
or flat rock appears as a thinner line across the display. A Soft Bottom such as
mud or sand appears as a thicker line across the display. Rocky Bottoms have
a broken, random appearance.
The sonar returns from the bottom, structure and fish can be represented as
either Inverse (default), WhiteLine®, Structure ID®, or Bottom Black. See
Sonar X-Press™ Menu: Bottom View for details on how to set the bottom
view.
Bottom ContourProfile with RTS® Window.
Temp/Speed Accessory is optional.
Rocky Bottom
Hard Bottom
Soft Bottom

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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.

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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.
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. Any targets such as fish,
structure and thermoclines will be shown using the Structure ID® method.