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Humminbird 525

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About

Humminbird 525Humminbird 500 Series 525 - Fishfinder - included transducer : XNT-9-20-T - single-beam
The 525 features a 12 level grayscale 240V x 240H 5" display and Single Beam sonar with 1600 Watts PTP power output.

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User reviews and opinions

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Comments to date: 3. Page 1 of 1. Average Rating:
thierry 4:33am on Saturday, July 10th, 2010 
Humminbird 535 I bought a Humminbird because of favorable past experiences with their fish finders, and this one is no exception.
Nil Filter 4:14pm on Wednesday, May 26th, 2010 
Humminbird 535 I bought a Humminbird because of favorable past experiences with their fish finders, and this one is no exception.
jimvg 1:21pm on Wednesday, May 19th, 2010 
Transducer We bought this for my 20 yr old son who loves to go icefishing. Great Product for the panfish fisherman!!! Not sure if my review will weight much to others but this product helps you put fish in the boat.

Comments posted on www.ps2netdrivers.net are solely the views and opinions of the people posting them and do not necessarily reflect the views or opinions of us.

 

Documents

doc1

Operations Manual

531368-1_A

Thank You!

Thank you for choosing Humminbird, America's #1 name in fishfinders. Humminbird has built its reputation by designing and manufacturing top-quality, thoroughly reliable marine equipment. Your Humminbird is designed for trouble-free use in even the harshest marine environment. In the unlikely event that your Humminbird does require repairs, we offer an exclusive Service Policy - free of charge during the first year after purchase, and available at a reasonable rate after the one-year period. For complete details, see the separate warranty card included with your unit. We encourage you to read this operations manual carefully in order to get full benefit from all the features and applications of your Humminbird product. Contact our Customer Resource Center at either 1-334-687-0503 or visit our website 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. NOTE: All screens and graphics used in this manual are based on the 320V x 320H display size of the Fishfinder535; however, this information is applicable to the models which have 240V x 160H, 240V x 240H and 640V x 320H displays also.
Humminbird, Selective Fish ID+TM, WhiteLine, RTS, X-PressTM Menu, Fish ID+TM, Structure ID, TrueArchTM, UltraBlackTM, Angler Profile PresetsTM are trademarked by or registered trademarks of Techsonic Industries, Inc. 2004. All rights reserved. i ii

Table of C on t en ts

How Sonar Works 1 Single Beam Sonar.... 1 DualBeam Sonar... 1 Whats On the Screen 2
Zoom Level (Sonar Zoom View Only)... 20 Sonar Menu Tab 21 Fish ID+.... 21 Fish Sensitivity... 22 Real Time Sonar (RTS) Window (Sonar View Only).. 23 Depth Lines (Advanced).... 24 Surface Clutter (Advanced)... 25 Noise Filter (Advanced).... 26 Max Depth (Advanced).... 26 Water Type (Advanced).... 27 Alarms Menu Tab 28 Depth Alarm.... 28 Fish ID Alarm.... 29 Low Battery Alarm.... 30 Alarm Tone.... 30 Setup Menu Tab 31 Units - Depth.... 32 Units - Temp (International Only)... 32 Units - Distance (with Temp/Speed Only).. 32 Units - Speed (with Temp/Speed Only)... 33 User Mode.... 33 Language (International Only)... 33 Triplog Reset (with Temp/Speed Only)... 34 Restore Defaults.... 34 Select Views (Advanced)... 35 Select Readouts (Advanced, Sonar View Only).. 36 Depth Offset (Advanced)... 37 Temp Offset (Advanced).... 38 Speed Calibration (Advanced, with Temp/Speed Only).. 38
Views 4 Sonar View.... 4 Understanding Sonar History... 5 Real Time Sonar (RTS) Window... 5 Sonar Zoom View.... 6 Big Digits View.... 7 Bottom Presentation.... 8 Key Functions 10 POWER/LIGHT Key.... 10 VIEW Key.... 10 MENU Key.... 10 4-WAY Cursor Control Key... 11 EXIT Key.... 11 Powering Up the Unit The Menu System 12 12
Start-Up Options Menu 15 Normal Operation.... 15 Simulator.... 15 System Status....16 Sonar X-Press Menu 17 Sensitivity.... 17 Upper Range (Advanced: Sonar and Big Digits View Only).. 18 Lower Range.... 18 Chart Speed.... 19 Bottom View.... 20

Wha ts On the Scr een

The Humminbird FishFinder can display a variety of useful information about the area under and adjacent to your boat, including the following items:
Depth - water depth; can be set to alarm when the water becomes too shallow. Temperature - water surface temperature.
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+TM 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. 200kHz, Narrow Beam Shaded Fish Symbol 83kHz, Wide Beam Hollow Fish Symbol (Dual Beam Units Only) 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. Soft Bottom RTS (Real Time Sonar) Window Battery Voltage - the voltage of the boats battery; can be set to alarm if the voltage falls below a certain point.
Timer - Elapsed time with Temp/Speed Accessory. Distance - Distance traveled with Temp/Speed Accessory. Average Speed - Average speed reading with Temp/Speed Accessory. Bait Ball Hard Bottom Rocky Bottom 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 keep a Triplog of nautical or statute miles traveled.
FishFinder can display the speed of the boat, and can
The views available on your FishFinder are: Sonar View Zoom View Big Digits 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 Select View from the Advanced Setup Menu.

NOTE: When you change any menu settings that affect the sonar, the view will update immediately (i.e. you dont have to exit the menu to apply the change to the screen). For instance, by switching between "Inverse" and "Structure ID" from the X-PressTM menu it is possible to quickly alternate between the two viewing methods.
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-PressTM Menu). Either five or six additional Digital Readouts (depending on your model) 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 cant accurately receive continuous data.
Understanding Sonar Hist or y
It is important to understand the significance of the Humminbird 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.

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.

PO W E R/LIGHT Ke y

The POWER/LIGHT key is used to turn the FishFinder on and off, and also to adjust the backlight and contrast of the display. Press the POWER/LIGHT key to turn the unit on. The Title screen is then displayed until the FishFinder begins sonar operation. Your FishFinder will start up with the backlight on and will automatically turn it off to conserve power. To turn the backlight on for night fishing or to adjust the display constrast press the POWER/LIGHT key to access the Light and Contrast menu. Use the DOWN Cursor 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 menu. Press and hold the POWER/LIGHT key for 3 seconds to turn the unit off. A message will appear telling you how many seconds there are until shutdown occurs. Your FishFinder should always be turned off using the POWER/LIGHT key. This will ensure that shutdown occurs properly and any menu settings will be saved.
4 -Wa y C ursor C on tr ol Ke y
Use the DOWN or UP arrow keys to select a menu choice from the menu list, then use the LEFT or RIGHT arrow keys to change a menu setting.
NOTE: Menu choices are implemented and saved immediately - no further action is required.

VI EW Ke y

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 views available. Views can be hidden to optimize the system to your fishing requirements (see Setup Menu Tab: Select Views, Advanced).

EXIT Ke y

The EXIT key has multiple functions, depending on the situation: If an alarm is sounding, pressing EXIT will cancel the alarm. If a menu tab is selected, pressing EXIT will exit the menu mode and return to the view. If a menu is active, pressing EXIT will return to the previous level in the menu system. Pressing EXIT will cycle through the available views in reverse order.

M E N U Ke y

The MENU key is used to access the menu system.

P ow ering Up the Unit

Turn on your FishFinder by pressing the POWER/LIGHT key. The Title screen is displayed until the FishFinder begins operation. Your FishFinder will begin Normal or Simulator operation, depending on the presence or absence of a transducer.
This is a typical Title screen for the FishFinder 535. Your model may have a slightly different Title screen.

The Menu S yst em

The menu system is divided into easy-to-use menu modules. The main components of the menu system are: Start-Up Options Menu - Press the MENU key during the power up sequence to view the Start-Up Options menu. X-PressTM Menu - The X-Press menu allows you to access the settings that are changed frequently without having to navigate through the whole menu system. Press the MENU key once to display the XPress Menu. When you select a menu item from the X-Press menu, the menu will collapse, leaving only the menu choice on the screen. Use the Up or Down Cursor keys to reactivate the X-Press menu.
Main Menu Tabs - Less frequently-adjusted menus are grouped into the Main Menu System. The Main Menu system is organized under the following tab headings to help you find a specific menu item quickly: Alarms, Sonar, and Setup. Press the MENU key twice for the Main Menu, then use the 4-Way Cursor LEFT or RIGHT key to select a tab, and use the DOWN or UP key to select a specific menu item under that tab, then use the LEFT or RIGHT keys again to change a menu setting. Press the EXIT key Main Menu System Normal User Mode to move quickly to the top of the tab. A down arrow at the bottom of a menu means that you can scroll to additional menu choices using the DOWN Cursor key. A right or left arrow on a menu choice means that you can use the RIGHT or LEFT Cursor keys to make changes or see more information.
NOTE: The Main Menu choices will vary depending on whether you are in Normal or Advanced user mode.
User Mode (Normal or Advanced) - An Advanced Mode is provided for users who desire the highest level of control over the FishFinder, and Normal Mode for users who desire greater simplicity and fewer menu choices. Additional Advanced menu choices will be displayed throughout the menu system when you navigate to specific menus while in Advanced Mode. Any changes made while in Advanced Mode will remain in effect after you switch back to Normal Mode. For example, if you set specific views to be visible while in Advanced User Mode, and then return to Normal User Mode, those views will still be visible. See Setup Menu Tab: User Mode for specific instructions on changing to Advanced User Mode.

X-PressTM Menu

NOTE: The X-Press Menu choices will vary depending on which view is active when you press the MENU key, as well as whether you are in Normal or Advanced user mode.

S tar t -Up Options Menu

Press the MENU key when the Title screen is displayed to access the Start-Up Options menu. Use the UP and DOWN 4-Way Cursor keys to position the cursor, then the RIGHT Cursor key to select one of the following choices. If you wait too long, the system will default to whichever menu mode happens to be highlighted: Normal Simulator System Status.

Sonar Tab, Advanced Mode Start-Up Options Menu

Sonar Tab, Normal Mode

See the following paragraphs for more information about each of these choices.
Total Screen Update - when you change any menu settings that affect the Sonar View, the view will update immediately (i.e. you dont 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 alternate quickly between the two viewing methods.

Normal Oper a tion

Use Normal operation for on the water operation with a transducer connected. In addition, your FishFinder uses advanced transducer detection methods to determine if a transducer is 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. Exit Normal operation by powering your FishFinder off.

Simula t or

Use the Simulator to learn how to use your FishFinder before taking your boat on the water. The Simulator is a very powerful tool that simulates on the water operation, providing a randomly-updated display. We recommend going through this manual while using the Simulator, since all of the menus function and affect the display the way they actually do when in Normal operating state.
NOTE: To get the full benefit of the Simulator, 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). Manually selecting Simulator from the Start-Up Options menu allows you to preconfigure your FishFinder for on the water operation. Any menu changes you make will be saved for later use.
A message will appear on the display periodically to remind you that you are using the Simulator. Exit the Simulator by powering your FishFinder off.
M Sonar X-Pr es s TTM Menu M The Sonar X-PressTTM menu provides access to the settings most frequently-used. Press the MENU key once while in any of the Sonar Views to access the Sonar X-Pressmenu.

To change the Surface Clutter setting: 1. Make sure you are in Advanced User Mode, then highlight Surface Clutter on the Sonar main menu. 2. Use the LEFT or RIGHT 4-Way Cursor Control keys to change the Surface Clutter setting. (Low = 1 to High = 10, Default = 5)

Noise Filt er

(Advanced) (Advanced) 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 Noise Filter menu choice is available when User Mode is set to Advanced (see Setup Menu Tab: User Mode).
NOTE: The Off setting removes all filtering; Low, Medium and High settings add progressive filtering of the sonar returns. In some deep water situations, the High setting may actually hinder your FishFinders ability to find the bottom.

Wa t er Type

(Advanced) (Advanced) Water Type configures your unit for operation in fresh or salt water. The Water Type menu choice is available when User Mode is set to Advanced (see Setup Menu Tab: User Mode).
NOTE: 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. Also, make sure that the Water Type is set accurately, especially in salt water, as this affects the accuracy of deep water depth readings.
To change the Noise Filter setting: 1. Make sure you are in Advanced User Mode, then highlight Noise Filter on the Sonar main menu. 2. Use the LEFT or RIGHT 4-Way Cursor Control keys to change the Noise Filter setting. (Off, Low, Medium, High, Default = Low)
To change the Water Type setting: 1. Make sure you are in Advanced User Mode, then highlight Water Type on the Sonar main menu. 2. Use the LEFT or RIGHT 4-Way Cursor Control keys to change the Water Type setting. (Fresh, Salt, Default = Fresh)

Max Depth

(Advanced) (Advanced) Max Depth adjusts the maximum depth of operation. The performance of your FishFinder can be tuned to the maximum depth you will be fishing in by setting the Max Depth. When a maximum depth is set, your FishFinder will not attempt to acquire sonar data below that depth, thus increasing overall performance. When Max Depth is set to Auto, the FishFinder will acquire bottom readings as needed (within the capacity of the unit). If the bottom is deeper than the Max Depth setting, the digital depth readout will flash, indicating that the FishFinder cannot locate the bottom. The Max Depth menu choice is available when User Mode is set to Advanced (see Setup Menu Tab: User Mode). To change the Max Depth setting: 1. Make sure you are in Advanced User Mode, then highlight Max Depth on the Sonar main menu. 2. Use the LEFT or RIGHT 4-Way Cursor Control keys to change the Max Depth setting. (AUTO, 10 to 800 feet or 3 to 260 meters [International Models Only], Default = AUTO)

Alarms Menu Tab

From any view, press the MENU key twice to access the Main Menu System. 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 you enter a new instance of the alarm condition.

Fish I D Alarm

Fish ID Alarm sounds when the FishFinder detects fish that correspond to the alarm setting. Fish ID Alarm will only sound if Fish ID+TM 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.

Alarms Menu

To change the Fish ID Alarm setting: 1. Highlight Fish ID Alarm on the Alarms main menu. 2. Use the LEFT or RIGHT 4-Way Cursor Control keys to change the Fish ID Alarm setting. (Off, All, Large/Medium, Large, Default = Off) All Large/Medium Large

Depth Alarm

Depth Alarm sounds when the depth becomes equal to or less than the menu setting. To change the Depth Alarm setting: 1. Highlight Depth Alarm on the Alarms main menu. 2. Use the LEFT or RIGHT 4-Way Cursor Control keys to change the Depth Alarm setting. (OFF, 1 to 100 feet, or 5 to 30 meters [International Models Only], Default = OFF)

L ow Ba t t er y Alarm

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 which 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 instance, 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. To change the Low Battery Alarm setting: 1. Highlight Low Battery Alarm on the Alarms main menu. 2. Use the LEFT or RIGHT 4-Way Cursor Control keys to change the Low Battery Alarm setting. (Off, 8.5V - 13.5V, Default = Off)

Setup Menu Tab

From any view, press the MENU key twice to access the tabbed Menu System, then press the RIGHT cursor key until the Setup tab is selected. NOTE:
Units - Temp Units - Distance Units - Speed Triplog Reset Language Select Views Select Readouts Depth Offset Temp Offset Speed Calibration (International Models Only) (Only if Temp/Speed is Connected) (Only if Temp/Speed is Connected) (Only if Temp/Speed is Connected) (International Models Only) (Advanced) (Advanced) (Advanced) (Advanced) (Advanced, Only if Temp/Speed Connected)

Languag e

(International Only) (Int ernational Language selects the display language for menus. International Models Only. To change the Language setting: 1. Highlight Language on the Setup menu. 2. Use the LEFT or RIGHT 4-Way Cursor Control keys to change the Language setting. (Default = English)

Triplog R eset

(with Temp/Speed Only) Temp/Speed Triplog Reset resets the Triplog to zero, and will only 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 Setup Menu Tab: Select Readouts (Advanced) to find out how to display Triplog information on the screen.

Selec t Views

(Advanced) (Advanced) Select Views sets the available views to either 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. The following views are available: Self Test, Accessory Test, Sonar View, Sonar Zoom View, Big Digits View, and their display status can be changed only when in Advanced User Mode (see Setup Menu Tab: User Mode.)

Select Views

To Reset Triplog: 1. Highlight Reset Triplog on the Setup menu. 2. Use the RIGHT 4-Way Cursor Control key to initiate Triplog Reset. 3. The Confirm dialog box will appear. To reset the Triplog, press the RIGHT Cursor key once more. To cancel Reset Triplog, press the LEFT Cursor key. To Select Views:

R est or e Def aults

Restore Defaults resets ALL menu settings to their factory defaults. Use this menu choice with caution! To Restore Defaults: 1. Highlight Restore Defaults on the Setup menu. 2. Use the RIGHT 4-Way Cursor Control key to initiate restoring defaults. 3. The Confirm dialog box will appear. To reset the defaults, press the RIGHT Cursor key once more. To cancel Restore Defaults, press the LEFT Cursor key.
1. Make sure you are in Advanced User Mode, then highlight Select Views on the Setup menu. 2. Use the RIGHT 4-Way Cursor Control key to initiate this procedure. 3. The Select Views submenu will appear, showing a list of all Views that can be hidden or made visible. Use the UP or DOWN Cursor keys to select a particular view, then use the RIGHT or LEFT Cursor keys to change the View status from Visible to Hidden or vice versa.

Selec t R eadouts

(Advanced, Sonar View Only) (Advanced, Select Readouts sets individual digital readouts on the Sonar View. This Advanced feature allows you to select what data will be displayed in each of either 5 or 6 (depending on your model) fixedposition data windows arranged around the left and bottom edges of the Sonar View screen, or whether a particular window will be turned off, displaying nothing in that area; you can access this menu choice only when in Advanced User Mode (see Setup Menu Tab: User Mode.)

Tr oubleshooting

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 Doesnt Power Up If your FishFinder doesnt 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.

Speed C alibr a tion

(Advanced, with Temp/Speed Only) (Advanced, Temp/Speed Speed Calibration will adjust the speed readout by the percentage entered, and will only appear in the menu if a Temp/Speed Accessory is connected and the paddlewheel has moved at least once when the unit is in Advanced User Mode (see Setup Menu Tab: User Mode.) To change the Speed Calibration setting: 1. Make sure you are in Advanced User Mode, then highlight Speed Calibration on the Setup menu. 2. Use the LEFT or RIGHT 4-Way Cursor Control keys to change the Speed Calibration setting. (-20% to +20%, Default = 0%)
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 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.

Displa y Pr oblems

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
The control head loses power at high speeds.
Finding the C ause 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

Other electronic devices

Possible Cause
If the power output of your boats 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. 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. Electrical noise from the boats engine may be interfering with sonar reception. See Finding the Cause of Noise for more information.

How to Isolate It

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. To determine whether the boats 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. 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.

The boats engine

When the boat moves at higher speeds, the bottom disappears or suddenly weakens, or the display contains gaps.
There are no fish detected, even when you know they are in the water under the boat, or sonar readings seem weak or faulty.

Product specifications and features are subject to change without notice.

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): 334-687-0503
By e-mail (typically we respond to your e-mail within three business days): custserv@techsonic.com
For direct shipping, our address is: Techsonic Industries, Inc. Service Department 678 Humminbird Lane Eufaula, AL 36027 USA

 

Technical specifications

General
Product TypeFishfinder - included transducer : XNT-9-20-T
Width7 in
Depth4 in
Height7 in
Sonar
FeaturesSonar echo enhancement, Selective Fish ID+
Transducer
Transducer TypeSingle-beam
Transducer MountTransom, in-hull
Maximum Depth800 ft
Target Separation2.5 in
Beamwidth20 degrees
Operating Frequency200 kHz
Power Output (Peak to Peak)1600 W
Power Output (RMS)200 W
Transducer FeaturesBuilt-in temperature sensor
Built-in Display
TypeFSTN
Resolution240 x 240
Display Diagonal5"
Color SupportMonochrome
Color Depth12-level grayscale
Display IlluminationYes
FeaturesSplit screen zoom, Real Time Sonar (RTS) window
Power
Low Voltage PowerDC 10 - 20 V
Miscellaneous
WaterproofYes
Universal Product Identifiers
BrandHumminbird
Part Number406260-1
GTIN00082324028823

 

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