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
Troubleshooting 39 FishFinder Doesnt Power Up.... 39 FishFinder Defaults to Simulator with a Transducer Attached. 39 Display Problems.... 40 Finding the Cause of Noise... 41 Humminbird Fishfinder Accessories Specifications Contact Humminbird 44

How Sonar Work s

Sonar technology is based on sound waves. The Humminbird FishFinder uses sonar to locate and define structure, bottom contour and composition, as well as depth directly below the transducer. Your 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 of a second. It is unlikely that your boat can "outrun" this sonar signal. Your FishFinder will either have Single Beam sonar or DualBeam sonar. Find the correct sonar description that applies to your unit.
NOTE: All sonar units typically read to deeper depths in fresh water than in salt water.

Single Beam Sonar

Your Humminbird FishFinder 515, 525 or 535 uses 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.

DualBeam Sonar

NOTE: Entries in this Table of Contents which list (International Only) are only available on products sold outside of the US and Canada 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 334-687-0503 to locate the distributor nearest you. NOTE: Entries in this Table of Contents which list (with Temp/Speed 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 1-334-687-0503.

Your Humminbird FishFinder 565 uses a 200/83 kHz dual beam sonar system with a wide (60) area of coverage. DualBeam sonar is optimized to show the greatest bottom definition using a narrow (20) beam yet can still indicate fish found in the wide (60) beam when the Fish ID+TM feature is turned on. DualBeam 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.

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.

Big Digits View

Big Digits View provides digital data in a large, easy-to-see format. Depth is always displayed. Readouts for temperature, speed and Triplog information are displayed automatically if the appropriate accessory is connected to the system. The Triplog shows distance traveled, average speed, and time elapsed since the Triplog was last reset. The digital readouts in the Big Digits View cannot be customized. Big Digits View

Digital Depth

Temperature
Timer shows the time elapsed since Triplog was last reset Distance is the distance traveled since the Triplog was last reset Voltage - the battery voltage. Average Speed shows the speed since the Triplog was last reset
Full Range View Zoomed View Zoom Preview Box
Lower Depth Range Zoom Level

Bot t om Pr esen ta tion

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. Bottom Contour Profile with RTS Window. Temp/Speed Accessory is optional.
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.
Hard Bottom Soft Bottom Rocky Bottom
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.
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. 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. 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.

Ke y F unc tions

Your Humminbird 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.
Start-Up Options Menu - Press the MENU key during the power up sequence to view the Start-Up Options menu. X-PressTM Menu - Press the MENU key once for the Sonar X-Press Menu. The X-Press menu allows you to access frequently-used settings without having to navigate through the whole menu system. When the X-Press menu is displayed, you can use the UP or DOWN Cursor keys to move to a particular menu choice. As soon as you alter a parameter (using the RIGHT or LEFT Cursor keys) the X-Press menu will collapse temporarily, and the screen will update if it is affected by your menu setting change, allowing you to see the effects of your action immediately. Reactivate the XPress Menu by using the UP or DOWN Cursor keys. Main Menu - Press the MENU key twice for the tabbed Main Menu System. The Main Menu System is organized under tabbed headings to help you find a specific menu item quickly: Alarms, Sonar, and Setup tabs are part of your tabbed Main Menu System. Use the LEFT or RIGHT 4-Way Cursor Control key to select a tab; then use the DOWN or UP key to select the menu item, and the LEFT or RIGHT key to alter a menu setting.

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.

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.
NOTE: Upper Range only appears in Advanced User Mode when in Sonar or Big Digits View.

Simulator

NOTE: Zoom Level only appears in Sonar Zoom View.

S yst em S ta tus

Use System Status to view system connections and to conduct a unit self-test. The following screens are displayed in turn when you press the VIEW button when using System Status: Self Test Accessory Test.

Sonar X-PressTM Menu

Sensitivity
Sensitivity controls how much detail is shown on the display. Increasing the sensitivity shows more sonar returns from small baitfish and suspended debris in the water; however, the display may become too cluttered. 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. If Sensitivity is adjusted too low, the display may not show many sonar returns that could be fish.
System Status Self Test Screen
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. Accessory Test lists the accessories connected to the system.
NOTE: The speed accessory will be detected only if the paddlewheel has moved since your FishFinder was powered up.

Sensitivity at Low

Sensitivity at Medium

Sensitivity at High

Exit System Status by powering your FishFinder off.

Accessory Test Screen

To adjust the Sensitivity: 1. Highlight Sensitivity on the Sonar X-Press menu. 2. Use the LEFT or RIGHT 4-Way Cursor Control keys to increase or decrease the Sensitivity setting. (Low = 1, High = 20, Default = 10)

Upper R ang e

(Advanced: Sonar and Big Digits Views Only) (Advanced: Upper Range sets the shallowest depth range that will be displayed on the Sonar and Big Digits Views. The Upper Range menu choice is available when User Mode is set to Advanced (see Setup Menu Tab: User Mode). 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), and will show greater detail for that area between 20 and 50 feet.
To adjust the Lower Range: 1. Highlight Lower Range on the Sonar X-PressTM menu. 2. Use the LEFT or RIGHT 4-Way Cursor Control keys to increase or decrease the Lower Range setting. (AUTO, 10 to 800 feet, 3 to 260 meters [International Models Only], Default = AUTO)

Char t Speed

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 in the Sonar View 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. Adjust Chart Speed to your personal preference. To adjust the Chart Speed: 1. Highlight Chart Speed on the Sonar X-Press menu. 2. Use the LEFT or RIGHT 4-Way Cursor Control keys to increase or decrease the Chart Speed setting. (1-9, Ultra, where 1 = Slow, 9 = Fast, Ultra = Fastest, Default = 4)
To adjust the Upper Range: 1. Make sure you are in Advanced Mode, then highlight Upper Range on the Sonar X-Press menu. 2. Use the LEFT or RIGHT 4-Way Cursor Control keys to increase or decrease the Upper Range setting. (0 to 790 feet or 0 to 257 meters [International Models Only], Default = 0)

L ow er R ang e

Lower Range sets the deepest depth range that will be displayed. Automatic is the default setting. When in automatic mode, the lower range will be adjusted by the unit to follow the bottom. Selecting a specific setting locks the depth range into Manual mode. Use both Upper and Lower Range together to view a specific depth range manually when looking for fish or bottom structure. M will be displayed in the lower right corner of the screen when you start manually adjusting the Lower Range to indicate that you are in Manual mode.
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, allowing you to see a more detailed view than you would see if the display went all the way to the bottom.

Bot t om View

Bottom View selects the method used to represent bottom and structure on the display. Inverse represents weak returns as dark pixels and strong returns as 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. Bottom Black displays all pixels below the bottom contour as black, regardless of signal strength. Any targets such as fish, structure and thermoclines will be shown using the Structure ID method. This has the benefit of providing a high contrast between the bottom and other sonar returns on the display. (See Bottom Presentation on page 8 for more detail). To adjust the Bottom View: 1. Highlight Bottom View on the Sonar X-Press menu. 2. Use the LEFT or RIGHT 4-Way Cursor Control keys to change the Bottom View setting. (Inverse, Structure ID, WhiteLine, Bottom Black, Default = Inverse)

Sonar Menu

Sonar Menu Tab
Press the MENU key twice to access the Main Menu System and then press the RIGHT Cursor key to select the Sonar tab.
NOTE: Depth Lines, Surface Clutter, Noise Filter, Max Depth, and Water Type only appear in Advanced User Mode.

M Fish I D+ TTM

Z oom L e v el
(Sonar Zoom View Only) Zoom Zoom Level sets the magnification level for the Sonar Zoom View, and is only available on the X-PressTM menu when the Sonar Zoom View is active. Use Zoom to increase the display resolution to separate sonar returns that are very close together. To adjust the Zoom Level: 1. Highlight Zoom Level on the Sonar X-Press menu. 2. Use the LEFT or RIGHT 4-Way Cursor Control keys to change the Zoom Level setting for the Sonar Zoom View. (2x, 4x, 6x, 8x, Default = 2x)
NOTE: The Zoom Preview Box tracks the bottom and cannot be moved by the user.
Fish ID+TM 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. Single beam sonar FishFinders represent targets as Shaded Fish Symbols. Dual beam sonar FishFinders represent targets detected in the 200 kHz narrow beam as Shaded Fish Symbols, and represent targets detected in the 83 kHz wide beam as Hollow Fish Symbols with their associated depths. The sonar return for the Hollow Fish Symbols will not be shown.
200kHz, Narrow Beam Shaded Fish Symbols
83kHz, Wide Beam Hollow Fish Symbols(Dual Beam Only)
When Fish ID+ is turned off, the FishFinder shows only the raw sonar returns on the display. For dual beam Fishfinders, when Fish ID+ is turned off, only the narrow beam is used to detect sonar returns. 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.
(Sonar View Only) 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 Real Time Sonar (RTS) Window for additional detail).
Transducer Cone and Fish Arches RTS Window (Wide) RTS Window (Narrow) RTS Window (Off)

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)

Alarm Tone

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. To change the Alarm Tone setting: 1. Highlight Alarm Tone on the Alarms main menu. 2. Use the LEFT or RIGHT 4-Way Cursor Control keys to change the Alarm Tone setting. (High, Medium, Low, Default = Medium)

Units - Depth

Units - Depth selects the units of measure for all depthrelated readouts. To change the Units - Depth setting: 1. Highlight Units - Depth on the Setup menu. 2. Use the LEFT or RIGHT 4-Way Cursor Control keys to change the Units Depth setting. (Meters [International Models Only], Feet, Fathoms; Default is Meters for International models, and Feet for Domestic models)

Units - Speed

(with Temp/Speed Only) Temp/Speed Units - Speed selects the units of measure for speed-related readouts, and will only appear in the menu if a Temp/Speed Accessory is connected and the paddlewheel has moved at least once. To change the Units - Speed setting: 1. Highlight Units - Speed on the Setup menu. 2. Use the LEFT or RIGHT 4-Way Cursor Control keys to change the Units - Speed setting. (kph [International Models Only], mph, kts, Default = kph for International models and mph for Domestic models)

Units - Temp

(International Only) (Int ernational Units - Temp selects the units of measure for all temperature-related readouts. International Models Only. To change the Units - Temp setting: 1. Highlight Units - Temp on the Setup menu. 2. Use the LEFT or RIGHT 4-Way Cursor Control keys to change the Units - Temp setting. (Celsius, Fahrenheit; Default = Celsius)

User Mode

User Mode sets the menu system to either Normal or Advanced. When set to Normal (default setting,) only the basic menu options are shown. When set to Advanced, additional menu choices are available. To change the User Mode setting: 1. Highlight User Mode on the Setup menu. 2. Use the LEFT or RIGHT 4-Way Cursor Control keys to change the User Mode setting. (Normal, Advanced, Default = Normal)

Units - Distanc e

(with Temp/Speed Only) Temp/Speed Units - Distance selects the units of measure for all distance-related readouts, and will only appear in the menu if a Temp/Speed Accessory is connected and the paddlewheel has moved at least once. To change the Units - Distance setting: 1. Highlight Units - Distance on the Setup menu. 2. Use the LEFT or RIGHT 4-Way Cursor Control keys to change the Units - Distance setting. (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)

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)

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.
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 boats engine may be interfering with sonar reception. See Finding the Cause of Noise for more information.
Cavitation from the boats propeller
Humminbird Fishfinder Ac c es sories
Accessories customize the Humminbird to your needs and enable you to stay on the edge of new technology and to catch more fish. When an accessory is connected to the system, additional menus and readouts are added automatically to your Humminbird menu system. Accessories available today that are supported by your Humminbird include: Temperature/Speed: simply plugs into the Humminbird control head and provides real time speed and temperature readouts, as well as a valuable Triplog function.

NOTE: If an external Temperature/Speed (TS-W) or Temperature (TG-W) accessory is connected AND a transducer with temperature built in is connected at the same time, the TS-W or TG-W accessory will override the temperature built in to the transducer.

Specifica tions

Depth Capability.. 800 ft (250 m) Power Output.. 250 Watts (RMS) 2000 Watts (Peak to Peak) Operating Frequency.. 200 kHz Single Beam (515, 525 and 535) 200 kHz and 83 kHz Dual Beam (565 Only) Area of Coverage... 60 @ -10 dB in 83 kHz 20 @ -10 dB in 200 kHz Target Separation... 2 Inches (63.5 mm) Power Requirement... 10-20 VDC LCD Matrix... 240 V x 160 H (515) 240 V x 240 H (525) 320 V x 320 H (535) 640 V x 320 H (565) Transducer... XHS-9-20-T Transducer Cable Length... 20 ft (6 m)
Be sure to check out our website www.humminbird.com for additional new and exciting accessories to grow your Humminbird Fishfinder!
NOTE: Accessories require a separate purchase.
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