Lowrance HOOK-4 User manual

lowrance.com
ENGLISH
HOOK Series
Operation manual
HOOK-4 HOOK-5 HOOK-7 HOOK-9

Copyright © 2016 Navico
All rights reserved.
Lowrance® and Navico® are registered trademarks of Navico.
Fishing Hot Spots® is a registered trademark of Fishing Hot Spots Inc.
Navionics® is a registered trademark of Navionics, Inc.
Navico may nd it necessary to change or end our policies, regulations and special oers at any time. We reserve
the right to do so without notice. All features and specications subject to change without notice.
Compliance Statements
Lowrance HOOK-4, HOOK-5, HOOK-7 and HOOK-9
• meets the technical standards in accordance with Part 15.103 of the FCC rules
• complies with CE under RTTE directive 1999/5/EC
• complies with the requirements of level 2 devices of the Radiocommunications (Electromagnetic
Compatibility) standard 2008
For more information please refer to our website: www.lowrance.com.

WARNING: When a GPS unit is used in a vehicle, the vehicle operator is solely responsible for operating
the vehicle in a safe manner. Vehicle operators must maintain full surveillance of all pertinent driving or
boating conditions at all times. An accident or collision resulting in damage to property, personal injury or
death could occur if the operator of a GPS-equipped vehicle fails to pay full attention to travel conditions
and vehicle operation while the vehicle is in motion.
Warning
The user is cautioned that any changes or modications not expressly approved by the party responsible for compliance
could void the user’s authority to operate the equipment. This equipment has been tested and found to comply with the
limits for a Class B digital device, pursuant to Part 15 of the FCC rules. These limits are designed to provide reasonable
protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio
frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to
radio communications. However, there is no guarantee that the interference will not occur in a particular installation. If
this equipment does cause harmful interference to radio or television reception, which can be determined by turning the
equipment o and on, the user is encouraged to try to correct the interference by one or more of the following measures:
• Reorient or relocate the receiving antenna
• Increase the separation between the equipment and receiver
• Connect the equipment into an outlet on a circuit different from that of the receiver
• Consult the dealer or an experienced technician for help
NOTE: This manual covers HOOK-4, HOOK-5, HOOK-7 and HOOK-9 units. As a result, screenshots of
menus and dialogs may not match the look of your unit.

45
Table of Contents | HOOK series Table of Contents | HOOK series
Introduction...................................... 6
Unit controls.............................................6
Inserting microSD cards ..........................7
Basic operation................................ 8
Setup wizard............................................8
Pages ......................................................8
Selecting pages....................................... 8
Page menus ............................................8
Working with menus ..............................10
Dialogs...................................................10
Entering text .......................................... 11
Fishing modes ....................................... 11
Cursor....................................................12
Goto cursor............................................12
Advanced mode ....................................13
Standby mode .......................................13
Restore defaults ....................................13
Pages.............................................. 14
Steer page............................................. 14
Sonar page............................................ 14
Downscan page ....................................15
Chart page.............................................15
Combo pages ........................................16
Overlay data ..........................................17
Sonar operation............................. 18
CHIRP ...................................................18
Trackback ..............................................19
Sonar menu........................................... 19
Sonar options ........................................23
Downscan options .................................24
Sonar settings........................................25
Installation .............................................27
Table of contents

45
Table of Contents | HOOK series Table of Contents | HOOK series
DownScan operation..................... 28
Trackback .............................................28
DownScan menu ...................................28
Ping speed.............................................30
Downscan options .................................30
Chart operation.............................. 33
Chart menu............................................33
Waypoints, Routes, Trails......................34
Routes screen .......................................35
Trails screen ..........................................39
Orientation............................................. 41
Chart settings ........................................42
Navigation settings ................................43
AIS................................................... 45
AIS setup............................................... 45
Target symbols ......................................46
Viewing AIS target information ..............47
Settings .......................................... 48
Settings menu........................................48
System...................................................48
Alarms ..................................................50
Saving screenshots ...............................50
Specications ................................ 52
Index ............................................... 56

67
Introduction | HOOK series Introduction | HOOK series
Getting started
Turn unit
on/off
To turn on/off the unit, press and
hold the LIGHT/POWER key for
three seconds.
Man
Overboard
waypoint
Press the ZOOM IN and ZOOM OUT
keys at the same time to set a Man
Overboard waypoint. Your system will
automatically create an active route
back to the MOB waypoint. You must
cancel navigation to terminate the
function.
Adjusting
the
backlight
This unit has 10 backlight levels.
Press the LIGHT/POWER key to
switch backlight levels.
Muting
Audio
Select Audio from the System
menu and press ENTER. Enable/
disable Mute.
Unit controls
LIGHT/POWER: controls backlight level
and turns unit on/off
KEYPAD: controls cursor & selects
items on menus
PAGES: allows you to select a page to
view
MENU: opens settings, context and
page menus
ENTER: nalizes menu selections; save
waypoint at cursor position
MOB: press and hold both Zoom keys to
create a Man Overboard waypoint
ZOOM Keys: used to zoom in/zoom out
microSD slot: insert a blank microSD card to save
screen captures; or insert a microSD mapping card to
use mapping data
Introduction

67
Introduction | HOOK series Introduction | HOOK series
Inserting microSD cards
HOOK-5, HOOK-7 and HOOK-9 HOOK-4
Carefully slide the microSD card into the slot until it clicks into place. To remove, carefully push in the
card until it clicks out of place.

89
Basic Operation | HOOK series Basic Operation | HOOK series
Selecting pages
To select a page, press the keypad in the direction
of the desired page and press ENTER.
Page menus
The Steer, Downscan, Sonar and Chart pages have
menus that can only be accessed when those
pages are displayed.
Steer page
Steer menu
Setup wizard
The Setup wizard will appear when the unit is
turned on for the rst time. To choose your own
settings, do not run the setup wizard. To restart
the Setup wizard, restore defaults.
Pages dialog
Pages
Basic operation
NOTE: Available pages vary depending
on the unit and the connected transducer.

89
Basic Operation | HOOK series Basic Operation | HOOK series
Chart page Chart menu
Downscan page
Downscan menu
Sonar page
Sonar menu
Combo pages
Press the PAGES key twice to switch active
panels. The page menu for active page will be
displayed when the MENU key is pressed. The
active panel is denoted by an orange border.
Accessing the Settings menu
x2
Two-panel page Three-panel page

10 11
Basic Operation | HOOK series Basic Operation | HOOK series
On/Off features
Select an on/o menu item and
press ENTER to turn it on/o.
Dropdown menus
Access the dropdown
menu and press the
keypad up/down to select
the desired item and press
ENTER.
Dialogs
Dialogs are used for user input
or for presenting information to
the user. Depending on the type
of entry, dierent methods are
used to conrm, cancel or close
the dialog.
Accessing menu items
The keypad and ENTER key are used to select
menu items and open submenus. Use the keypad
to highlight the desired item and press ENTER.
Working with menus
There are several menu types used to make
adjustments to options and settings, including
scrollbars, on/o features and dropdown menus.
Scrollbars
Select the scrollbar and press the
keypad left (decrease) or right
(increase).
NOTE: Press the MENU key to Exit
menus.

10 11
Basic Operation | HOOK series Basic Operation | HOOK series
Fishing modes
(Conventional sonar only)
Fishing modes enhance the performance of your
unit by providing preset packages of sonar set-
tings geared to specic shing conditions.
Switches keyboard
between Alpha and
QWERTY layout
Switches letters
to uppercase/
lowercase
Entering text
Some functions, like naming a waypoint, route or
trail, will require you to input text.
To input text:
1. Use the keypad to select the desired
character and press ENTER.
2. Repeat Step 1 for each character.
3. When entry is completed, highlight OK
and press ENTER.

12 13
Basic Operation | HOOK series Basic Operation | HOOK series
Cursor
The keypad moves the cursor around the display,
allowing you to scroll the map, select map items
and review sonar history.
Press MENU and select Return to vessel or Exit
cursor mode to clear the cursor.
Goto cursor
Used to navigate to the cursor.
1. Move the cursor to a desired location
and press MENU.
2. Select Goto cursor and press ENTER.
Fishing mode options
General Use 1000 ft or less Coastal
Shallow
Water 60 ft or less Shallow weedy bottoms
Fresh Water 400 ft or less Inland/Near coastal
Deep Water 1000 ft or more Offshore
Slow
Trolling 400 ft or less Inland/Coastal
Fast
Trolling 400 ft or less Inland/Coastal
Clear Water 400 ft or less Inland/Coastal
Brackish
Water 400 ft or less Fresh-Saltwater mix
Ice 400 ft or less Ice shing
NOTE: Use Fresh Water mode when shing
in less than 100 feet of water; otherwise
your unit may not track bottom properly.

12 13
Basic Operation | HOOK series Basic Operation | HOOK series
Press the PWR/LIGHT key to access the Backlight
dialog.
Restore defaults
Resets unit options and settings
to defaults.
NOTE: Leaving your unit in Standby
mode when your boat is not in use will
run down your battery.
Advanced mode
Enables advanced features and settings.
The following features are enabled when Ad-
vanced mode is turned on:
• Navigation (Enables arrival radius, off-
course distance and Bearings setting)
• Alarms (Enables arrival, off course and
anchor alarm options)
• NMEA 0183 Output (Requires optional
Power/NMEA cable 000-0127-49)
• Units (Enables distance, speed, depth,
temperature, and bearings options)
Standby mode
Lowers power consumption by
turning o sonar and the display.

14 15
Pages | HOOK series Pages | HOOK series
Steer page
The Steer page has a compass that shows your
current track, the direction to your destination,
and a digital data navigation panel.
Your location
Direction to cursor
Compass
Current Track
Navigation
information
Sonar page
Displays the water column moving from right to
left on your unit’s screen.
Fish arches
Surface Clutter
Range
Scale
Bottom
Pages

14 15
Pages | HOOK series Pages | HOOK series
Downscan page
The Downscan page shows the water column
moving from right to left. You can overlay
downscan sonar on the conventional sonar page
by selecting Downscan Overlay on the Sonar
settings menu.
Chart page
Consists of map that moves in real-time as you
move. By default, the map is shown from a birds-
eye view with North at the top of the screen.
Current location
Waypoint
Current cursor location;
distance to cursor
Depth
contours
Zoom
Range
Structure
Fish Surface clutter
Range scale
Cursor

16 17
Pages | HOOK series Pages | HOOK series
Combo pages
This unit has four pre-congured combo pages.
Chart/Sonar Chart/Downscan
Sonar/Downscan Chart/Sonar/Downscan
NOTE: Press the PAGES key twice to
switch active panels.
Customizing combo pages
You can adjust the panel size
of combo pages and control
how the pages will be
arranged on the screen:
vertically (side) or horizontally (over).
To make adjustments to combo page panels,
select a combo page from the Pages carousel and
press MENU.
NOTE: To adjust panel size, access the
customize menu after selecting a combo
page for display and select Panel size.

16 17
Pages | HOOK series Pages | HOOK series
To add overlay data:
1. From the Sonar, Chart or DownScan
page, press MENU.
2. Select Overlay data and press ENTER.
3. Select Congure and press ENTER.
4. Press MENU and select Add. Press
ENTER.
5. Select a data category and press
ENTER.
6. Select the desired data and press
ENTER.
7. Press MENU and select Return to
Overlays. Press ENTER.
8. Press MENU, select Done Conguring
and press ENTER.
Overlay data
Used to select data shown on the Sonar, Structure
and Chart pages.
Show
Enables/disables the display of overlay data,
allowing you to remove overlay data from the
screen without deleting the current overlay data
conguration.
Congure
Allows you to select/customize overlay data.
Overlay data

18 19
Sonar Operation | HOOK series Sonar Operation | HOOK series
of the selected transducer type. This results in
better image quality, better target separation and
greater depth penetration.
This unit supports High CHIRP, Medium CHIRP
and Low CHIRP, depending on the transducer.
CHIRP can be used with Lowrance conventional
sonar transducers.
• 50/200 kHz (Low/High CHIRP)
• 83/200 kHz (Medium/High CHIRP)
To use CHIRP, select the desired CHIRP frequency
from the Frequency menu.
This unit supports two types of sonar:
Conventional and Downscan.
The features described in this section are for
conventional sonar. Refer to the Downscan section
for information on Downscan features.
CHIRP
A CHIRP (Compressed High Intensity Radar
Pulse) transducer transmits a modulated pulse
of multiple frequencies within the bandwidth
Sonar operation

18 19
Sonar Operation | HOOK series Sonar Operation | HOOK series
Blue sonar history bar
Trackback
You can review your recent sonar history by mov-
ing the cursor to the left until the screen starts to
move in reverse.
Move the sonar history bar all the way to the right
to resume normal sonar scrolling, or press MENU
and select Exit cursor mode.
Sonar menu
Press MENU from any sonar
page to access the Sonar
menu.
Sonar Menu
(Advanced Mode)
(Only active with
Downscan overlay
turned on)
Used to record
sonar logs

20 21
Sonar Operation | HOOK series Sonar Operation | HOOK series
New waypoint
Places a waypoint at your current position or
at the cursor position. From the new waypoint
dialog, you can input a waypoint name, select an
icon and input a desired latitude/longitude.
Adjust
Used to make adjustments to Sensitivity
and Colorline.
New waypoint menu
Sensitivity
Controls the level of detail shown on the display.
Too much detail will clutter the screen. If Sensitivity
is set too low, desired echoes may not be displayed.
Colorline
Helps distinguish sh or structure from the
bottom by showing hard returns as light colors
and soft returns as darker colors. A lower colorline
setting will display only the hardest returns,
shown in light colors.
Auto sensitivity
Keeps sensitivity at a level that works well under
most conditions, reducing the needs for adjust-
ments. Auto Sensitivity is turned on by default.