FISH 4430 / 4431

F I S H F I N D E R S
Installation and Operation Manual

www.navman.com

FCC Statement
Note: 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 normal 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 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 off 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 output on a circuit different from that to which the receiver is connected. Consult the dealer or an experienced technician for help. A shielded cable must be used when connecting a peripheral to the serial ports.

Contents

1 Introduction.....Getting started....7 2-1 Simulation Mode. Operation.....8 3-1 Alarms. 9 3-2 HISTORY screen operation. 10 3-3 HISTORY screen interpretation. 11 3-4 ZOOM screen. 14 3-5 SONAR screen. 15 3-6 NAVIGATE screen. 16 3-7 DATA screen. 17 3-8 RANGE menu. SETUP menu..... 18 4-1 ALARMS menu. 19 4-2 UNITS menu.20 4-3 FISH SYMBOL. 21 4-4 CONTRAST menu. 21 4-5 ZOOM SPLIT. 21 4-6 LOG menu (FISH 4431 ONLY).22 4-7 INSTALL menu.22 4-8 CALIBRATION menu.23 4-9 Resetting to Factory Defaults.Installation..... 24 5-1 What comes with the FISH 4430/4431?.24 5-2 Options and Accessories.25 5-3 Mounting the FISH 4430/4431 Display Unit.25 5-4 Wiring Connection.26 5-5 Connecting a FISH 4430/4431 to other instruments.27 Appendix A - Specifications.... 28 Appendix B - Troubleshooting..... 29 Appendix c - How to contact us.... 31
Fish 4430/4431 Installation and Operation Manual

Important

It is the owners sole responsibility to install and use the instrument and transducers in a manner that will not cause accidents, personal injury or property damage. The user of this product is solely responsible for observing safe boating practices. NAVMAN NZ LIMITED DISCLAIMS ALL LIABILITY FOR ANY USE OF THIS PRODUCT IN A WAY THAT MAY CAUSE ACCIDENTS, DAMAGE OR THAT MAY VIOLATE THE LAW. Governing Language: This statement, any instruction manuals, user guides and other information relating to the product (Documentation) may be translated to, or has been translated from, another language (Translation). In the event of any conflict between any Translation of the Documentation, the English language version of the Documentation will be the official version of the Documentation. This manual represents the FISH 4430/4431 as at the time of printing. Navman NZ Limited reserves the right to make changes to specifications without notice. Copyright 2005 Navman NZ Limited, New Zealand, all rights reserved. NAVMAN is a registered trademark of Navman NZ Limited.
NAVMAN fishfinders are set up with default units of feet, F (Fahrenheit) and knots. Please refer to section 4-2 of this manual to change the units.

1 Introduction

Congratulations on choosing a NAVMAN fishfinder. For maximum benefit, please read this manual carefully before installation and use. This manual describes the installation and operation procedures for the FISH 4430/4431.

It is vital to the performance of the fishfinder that the transducer is installed in the best location. Please follow the instructions in the Transducer Installation manual very carefully. All of the NAVMAN 4000 Series fishfinders use proprietary SBN Technology for sonar processing to improve signal enhancement, bottom recognition and noise rejection. SBN Technology uses the latest in digital adaptive filter algorithms to enhance all returned signals. At the same time, SBN Technology uses active noise control to reject interference, which can often be mistaken by fishfinders for true returns. Using SBN Technology, the FISH 4430/4431 analyses the reflections from each pulse, filters false returns, and displays what is in the water under the boat. The distinctions between the four levels of shading help the user to better interpret what is in the water and what type of bottom is under the boat.

The NAVMAN Fishfinder

The FISH 4430/4431 is an ultrasonic fishfinder with four levels of greyscale. It provides powerful software and a large, high-resolution screen with a zoom facility and a choice of fish symbols. As well as detecting fish, the FISH 4430/4431 measures the water depth, battery voltage, engine hours and water temperature. The Fish 4431 also measures boat speed and has two distance logs (Trip Log and Total Log). An installed FISH 4430/4431 has two parts: - The transducer attached to the hull. - The display unit. The transducer generates an ultrasonic pulse (sound that is above the hearing range of the human ear), which travels down towards the bottom, spreading out into a cone shape. When the pulse meets an object, such as a fish or the bottom, some of the pulse is reflected back up towards the boat and is received by the transducer. The depth of an object can be calculated by measuring the time between sending the pulse and receiving its echo. The NAVMAN FISH 4430/4431 will detect the bottom down to 600 feet (180 metres), depending on the clarity of the water and the type of transducer used. The strength of an echo can vary for a number of reasons. Larger fish usually return stronger echoes, and so do fish in the middle of the cone, where the pulse is strongest. Reasons for weak echoes include the fish or object being in deep water, turbid water or in the edge of the cone where the pulse is weakest. Turbid water scatters the ultrasonic pulse and is difficult to see through. Turbidity can be caused by air in the water (e.g. from another boats wake) or by mud in the water.

Assisting with navigation
The FISH 4430/4431 can be used to find fish, to locate features on the bottom such as reefs or wrecks, and to help recognise favourite fishing spots from the profile of the bottom. Use the NAVMAN fishfinder to assist navigation by following the depth contours marked on charts. IMPORTANT NOTE ON USE. While any fishfinder can be used as an aid to navigation, accuracy can be influenced by many factors including the location of the transducer. It is the users responsibility to ensure that the FISH 4430/4431 is installed and used correctly.

How to find fish

Underwater features like reefs, wrecks and rocky outcrops attract fish. Use the FISH 4430/4431 to find these features, then look for fish by passing over the feature slowly several times using the ZOOM screen (see section 3-4). Where there is a current, the fish will often be found downstream of the feature.
For deep-sea fishing with the FISH 4430/4431, a rapid change in temperature may indicate the edge of a warm or cold current. The temperature difference can form a barrier, and the fish may not swim through this. Search for fish on either side of the barrier.
transducer when repainting the hull. If painting over a through hull transducer with antifouling paint then use only one coat of paint. When repainting the transducer, remove previous coats of antifouling paint by sanding it lightly. When not in use, the FISH 4430/4431 can either be removed from the installation bracket and stored in a safe, dry, cool place such as the NAVMAN carry bag, or left on the installation bracket and securely covered with the optional sun cover.

Cleaning and maintenance

The FISH 4430/4431 should be cleaned with a damp cloth or mild detergent. Avoid abrasive cleaners and petrol or other solvents. Always cover or remove a transom-mounted

2 Getting started

Power and transducer connection
FISH 4430 One end of the integrated transducer/power cable has an 8 pin LT connector plug. Push this plug into the socket located on the rear of the display unit, then turn the collar to lock. Make sure that the collar is secure for a watertight connection. FISH 4431 One end of the power cable has a black 8 pin LT connector plug. Push this plug into the lower socket, which has a black nut and is located on the rear of the display unit, then turn the collar to lock. Make sure that the collar is secure for a watertight connection. One end of the transducer cable has a blue 8 pin LT connector plug. Push this plug into the upper socket, which has a blue nut and is located on the rear of the display unit, then turn the collar to lock. Make sure that the collar is secure for a watertight connection. If the transducer is not connected, the message NO TRANSDUCER DETECTED. ENTER SIMULATION MODE? will appear. Press to switch between YES, NEVER or NO. (More information on the simulation mode can be to found in the following section). Press confirm the selection and the startup sequence will continue. (Note: If the transducer was not intentionally disconnected, turn the display unit off and refer to the section on Troubleshooting in Appendix B.) Cursor key key Names of keys:

+ gain key - gain key

Power key
Definition of Press and Hold in this manual: Press means to push the key for less than one second. Hold means to push and hold the key down for more than one second.

Power on

To turn the fishfinder on press. Note: if the unit is wired for Auto Power (see section 5-4) the fishfinder will turn on automatically when the boats ignition is turned on. A title screen briefly appears which displays basic product information, including the software version. The FISH 4430/4431 then automatically displays the screen that was last used.

Power off

To turn the fishfinder off, hold. A countdown box appears. Continue to hold for three seconds until the fishfinder turns off. Note: If the unit is wired for Auto Power (see section 5-4) the fishfinder can only be turned off when the boats ignition is turned off.
4. The screen displays a list of languages. Press the Cursor or key to highlight a language, then press the Cursor key to select it. The fishfinder will continue the startup sequence. (For further information, see section 4-8).

Backlighting

Use the button to adjust the backlighting to suit individual preferences. Press once, at any time, to see the backlight bar. This is displayed at the bottom of the screen and shows the current setting. Press repeatedly until the desired backlighting level is achieved. The backlight bar will disappear two seconds after the last press.

Language selection

To check which language is currently selected, press to display the MAIN MENU. Follow these steps to change the language: 1. Power off the unit. 2. While the unit is off, hold down the key. 3. Keep holding down the power on the unit. key and

2-1 Simulation Mode

An internal simulator allows users to learn how to operate the fishfinder off the water. In Simulation mode the word SIMULATION flashes on the bottom of the screen. The fishfinder generates data so that all the main screens appear to be operational. Any changes made to the contrast, backlighting, alarms or the display setup are saved. To turn the Simulation mode ON or OFF, press SETUP highlight SIMULATE.

3 Operation

MAIN MENU screen
NAVMAN fishfinders are menu driven. Press to display the MAIN MENU screen. Press or to highlight an option, then press to select it. The MAIN MENU options are summarized below and fully explained in the following sections.

HISTORY screen (see section 3-2)
Displays the echoes received over time, with the most recent events on the right of the screen. Use this screen when travelling to show the bottom so reefs, wrecks and fish can be found.
ZOOM screen (see section 3-4)
This screen is split into two parts. On the right is the Full Range Section which shows part of the HISTORY Screen and to the left is the Zoom Section. Use this screen for taking a closer look at interesting underwater features.
SONAR screen (see section 3-5)
Displays the strength and depth of the echoes returned from each ultrasonic pulse. The depth range is displayed in the lower right corner. This screen is a powerful aid, ideal for showing the bottom hardness and the fish species. This screen can also be used to adjust the display shading on the HISTORY and ZOOM screens.
It also displays the boat speed and the enabled alarms.
DATA screen (see section 3-7)
The DATA screen displays the water temperature and water temperature history over the last 40 minutes. It also displays the boat battery voltage, log, engine-hours counter, boat speed, water depth and enabled alarms.
NAVIGATE screen (see section 3-6)
Prominently displays the water depth as a digital readout. The corresponding bottom trace is also shown. These two complimentary features are particularly useful for understanding depth trends when travelling at speed.
SETUP menu (see section 4)
Use this option to customise the FISH 4430/4431 to suit the boat and individual preferences.
RANGE menu (see section 3-8)
Use this option to select either Auto or Manual Range and to change the selected depth range.

3-1 Alarms

Alarms can be enabled to automatically detect certain conditions, such as the water being too shallow. The trigger settings for the alarms can be defined to suit the boat and individual preferences. The fishfinder has six alarms, TOO SHALLOW, TOO DEEP, FISH ALARM, TEMP VALUE, TEMP RATE and LOW BATTERY. The alarm symbols and beeper cycles for all of the alarms are shown in section 4-1. The FISH ALARM is three short beeps, the TOO SHALLOW ALARM is a rapid continuous beep while all others are a slower continuous beep. When an alarm condition is met, then: The beeper sounds. The ALARMS menu is displayed on the screen with the activated alarm(s) flashing.
Alarms automatically re-enable
The TOO SHALLOW, TOO DEEP and LOW BATTERY alarms automatically re-enable when the value moves outside the alarm trigger setting. The TEMP VALUE alarm automatically re-enables when the temperature is more than 0.45F (0.25C) above or below the alarm trigger setting. The TEMP RATE alarm automatically re-enables when the rate of temperature change falls below the trigger setting by more than 0.2F (0.1C) per minute.

Enabling Alarms and Changing Trigger Values
See section 4-1 for information about enabling alarms and changing the trigger values.
Press any key to acknowledge the alarm, stop the beeping and remove the ALARMS menu. This does not disable the alarm. The symbol will continue to flash until the alarm condition is no longer present.
3-2 HISTORY screen operation
Select MAIN MENU - HISTORY to display the HISTORY screen. The HISTORY screen displays the most recent echoes on the right of the screen and the oldest echoes on the left. These eventually disappear off the screen. The vertical bar on the right edge of the screen is the zoom bar. This shows the zoom range. To adjust the zoom range (see section 3-4). Selected depth range (0 to 150) Fish symbol with depth Zoom bar
Range is the depth of water displayed vertically. The NAVMAN fishfinder has two range modes, Auto Range and Manual Range: In Auto Range, the fishfinder adjusts the depth range automatically so that the bottom is always shown in the lower part of the screen. The use of Auto Range is recommended. In Manual Range, the fishfinder shows only a selected depth range. In areas of rapidly changing bottom depth, such as the sea floor around pinnacles, it can be useful to prevent the screen from rescaling to always show the bottom. If the bottom is deeper than the specified depth range, it will not be shown on the display screen.

Bottom

To change the range mode, (see section 3-8).

Alarms

Changing the Gain Mode
Gain (sensitivity) controls the amount of detail displayed on the screen. The fishfinder has two gain modes, Auto Gain and Manual Gain: In Auto Gain, the gain is automatically adjusted to compensate for water depth and clarity. The use of Auto Gain is strongly recommended when learning to use a fishfinder, or when travelling at speed. In Manual Gain, the user can adjust the gain to compensate for water depth and clarity. Manual settings range from 1 to 9. High settings may amplify normal background noise until it appears as random pixels on the screen. The ideal setting produces only a small number of random pixels. Normally the best results with a fishfinder are obtained in Manual Gain but practice and experience are required to understand how to adjust the gain correctly.
The HISTORY screen does not show a fixed distance travelled by the boat; rather, it displays what has passed below the boat during a certain period of time. The actual display depends upon the boat speed and the depth of the water. As the boat travels through shallow water, the echoes have less distance to travel between the objects and the boat. This means that the HISTORY screen display moves across the screen more quickly than when the boat is travelling in deep water. In deep water, the echoes take longer to travel between the objects and the boat, producing a display that moves across the screen more slowly. Note 1: Different fish symbols can be selected (see section 4-3). Note 2: The depth of bottom can be adjusted for keel offset (see section 4-7).

As the fish enters the weak edge of the sonar cone it generates a weak return signal that turns on the first pixel on the fishfinder screen. As the boat moves closer to the fish the distance between the transducer and the fish reduces and the return signal is displayed at progressively shallower depths, producing the start of an arch. When the fish is directly beneath the transducer and in the middle of
The following picture shows the HISTORY screen with the fish symbols turned off:
The strength of the returned echo varies with several factors, such as: The size of the fish, school of fish or other object. The depth of the fish or object. The location of the fish or object. The area covered by the ultrasonic beam is approximately cone-shaped and echoes are strongest in the middle. The clarity of water. Particles or air in the water reduce the strength of the returned echo. The composition or density of the object or bottom. Mud, weed and sand bottoms tend to weaken and scatter the sonar signal, which results in weaker returns. Rock or coral bottoms concentrate the return signal for strong returns.
Single fish Large school of fish
Small school of fish Bottom
Strength of returned echoes
The shading indicates differences in the strength of the returned echo from the bottom. A black pattern indicates a strong echo, and light grey indicates a weak echo. Fish symbols are always shown in black.
Note: That planing hulls at speed produce air bubbles and turbulent water that bombard the transducer. The resulting ultrasonic noise may be picked up by the transducer and obscure the real echoes.

Large fish Kelp / weed

Hard bottoms such as rock or coral show as wide bands at the bottom of the screen
Soft bottoms such as mud, weed and sand show as narrow bands at the bottom of the screen

Shadows

Shadows are areas where the ultrasonic beam cannot see. These include hollows on the bottom or beside rocks and ledges where the strong echo returned off the rock obscures the weaker echo of the fish. When looking for small objects including fish, users should consider that there are places where fishfinders cannot see. Shadow - where objects are hidden in the bottom echo. These fish will be hidden in the bottom echo.

Recognising the Type of Fish
Different species of fish have different sizes and shapes of swim bladders. The air in the swim bladder reflects the ultrasonic pulse, so the strength of the echo varies between fish species according to the size and shape of the swim bladder. The sonar display is 70 pixels wide, so it can show 70 levels of return echo strength, which is a powerful feature. When fishing among a school of fish and catching them, note the fish species and the strength of the echo that it returns on the fishfinder on the Sonar Echo screen. Then, the next time that particular return on the fishfinder is seen, it is likely to be the same fish species.
Adjusting the Shading Bar
The Shading Bar is displayed as a horizontal bar in the lower half of the screen. Adjust the Shading Bar so different strength echoes have a different shade on the screen. Weaker echoes can be shown as light grey, and the strongest echoes shown as black. Increase the black part of the Shading Bar by pressing if there are too few long (strong) echoes being displayed in black. Decrease the black part of the Shading Bar by pressing if there are too many long (strong) echoes being displayed.
Recognising the Type of Bottom
The bottom trace is the strongest echo shown in the lower part of the left side of the screen. A bottom trace with a wide black layer is indicative of a hard bottom, because a hard bottom returns strong echoes. Conversely, a soft bottom produces medium or weak echoes, which are shown by a narrower trace. Small strong echo (e.g. fish). This usually flashes on and off as the ultrasonic pulse strikes the fish. Large strong signal (e.g. bottom) Shading Bar

Manual Gain

When Manual Gain is selected, increasing the gain setting will result in more detail being shown on the fishfinder display. Decreasing the gain will reduce detail being shown. See Changing the Gain Mode in section 3-2 for more information on changing Gain settings.

Gain setting

These echoes will be shown in grey on the Fish History section. These strong echoes will be shown in black on the Fish History section. The weak echoes within this white section of the shading bar will not be shown - they are below the threshold of where the shading begins. Increasing Gain by pressing + will move the edge of the light grey bar to the left and result in weaker echoes being displayed in the Fish History section. Pressing - will move the edge of the grey bar to the right.

3-6 NAVIGATE screen

Select MAIN MENU - NAVIGATE to display the NAVIGATE screen. The NAVIGATE screen displays useful information while travelling at speed. It prominently displays the water depth, the boat speed, the bottom profile and any alarms that are enabled. Depth can be displayed in feet (FT), fathoms (FA), or metres (M). Use the SETUP - UNITS - DEPTH menu to select the required depth units (see section 4-2). Speed (F4431 ONLY) can be displayed in knots (KN), miles per hour (MPH), or kilometres per hour (KPH). Use the SETUP - UNITS - SPEED menu to select the desired speed units (see section 4-2).
TIP: Use the < key to immediately return to the fish finder screens.

3-7 DATA screen

Select MAIN MENU - DATA to display the DATA screen:

Temperature

The temperature can be displayed in F (Fahrenheit) or C (Celsius). Use the SETUP - UNITS - TEMPERATURE menu to select the desired temperature units (see section 4-2). Alarms that indicate a specific temperature, or rate of change of temperature, may be enabled (see section 4-1). Log (F4431 ONLY) One of two distance logs can be displayed: Trip Log or Total Log. Both logs are retained in the FISH 4430/4431 memory when the unit is switched off. Use the SETUP - LOG menu to select the Trip Log or Total Log (see section 4-6). The Trip Log must be reset manually (e.g. to record total mileage during a season, or the distance travelled on this trip). Note: That the units displayed on each Log will correspond with the Speed. Speed (F4431 ONLY) can be displayed in knots (KN), miles per hour (MPH), or kilometres per hour (KPH). Use the SETUP - UNITS - SPEED menu to select the desired speed units (see section 4-2).
Temperature Graph Battery Log Engine hours Speed Enabled alarms Depth
A graph displays the surface water temperature for the last 40 minutes and is updated every 30 seconds. The current water temperature is displayed above the graph and is updated every second.

3-8 RANGE menu

Select MAIN MENU - RANGE to change the manual range and adjust the selected depth range. The range setup box is displayed. This shows the depth of water displayed vertically and the range mode setting. NAVMAN fishfinders has two range modes, Auto Range and Manual Range. The use of Auto Range is recommended. See section 3-2 for more details. To change between Auto Range and Manual Range, press. The Manual Range mode offers the user a choice of pre-selected water depths. Use and to display the options and select a water depth. Press to exit.

4 SETUP menu

Select MAIN MENU - SETUP to display the SETUP menu: Use the SETUP menu to customize settings to suit the boat and individual preferences, as follows: Specify the trigger settings for the alarms (see section 4-1). Choose the units for depth, temperature, speed and fuel (see section 4-2). Turn the key beep on or off. Choose the fish symbol (see section 4-3). Choose the contrast level (see section 4-4). Turn Simulation mode on or off Turn Zoom Split on or off (see section 4-5) Select the Trip Log or the Total Log (see section 4-6). Zero Trip Log or zero all logs (see section 4-6). Select language, setup the keel offset (see section 4-7). Calibrate speed and temperature sensors (see section 4-7).
Press or to highlight an option, then see the following sections.

4-1 ALARMS menu

Select MAIN MENU - SETUP - ALARMS to display the available alarms. Press or to highlight an option. Alarms can be enabled to automatically detect certain conditions, such as the water being too shallow. Trigger settings can be defined to suit the boat and individual preferences. The beeper cycle is different for some alarms. All of the alarm symbols and beeper cycles are shown:
Symbol Alarm Name Temp Value Temp Rate Beeper Cycle
Alarm condition is met when: the temperature equals the alarm trigger value the rate of change of temperature equals the alarm trigger value the depth is less than the alarm trigger value the depth is greater than the alarm trigger value an echo matches the profile of a fish the battery voltage is less than the alarm trigger value

/2 sec /2 sec

Too Shallow Too Deep

/5 sec /2 sec

When an alarm condition is met, then: The beeper sounds. The ALARMS menu is displayed on the screen with the activated alarm symbol(s) flashing.
Fish Alarm Low Battery 3 short beeps

/2 sec

Note: The FISH ALARM gives only three short beeps.
Flashing Light and/or External Beeper
If a secondary alarm indicator is required, a flashing light and/or external beeper can be installed. These can be positioned anywhere suitable on the boat. For installation advice see section 5-4.
Press or to highlight an alarm, then press to select it. To enable or disable an Alarm, press to switch between ON and OFF. To set the trigger value for an Alarm, press or to increase or decrease the trigger value. The alarm trigger value is retained even when the alarm is disabled.

4-2 UNITS menu

Select MAIN MENU - SETUP - UNITS to define the units for depth, temperature, speed and fuel. Press or to highlight an option.

TEMPERATURE

Can be displayed in F (Fahrenheit) or C (Celsius). Press to select the required temperature units.
Can be displayed in knots (KN), miles per hour (MPH), or kilometres per hour (KPH). Press to select the required speed units. Note: Distance units will change automatically to match the speed units.

Can be displayed in units of feet (FT), fathoms (FA), or metres (M). Press to select the required depth units.

4-3 FISH SYMBOL

Select MAIN MENU - SETUP - FISH SYMBOL to display the fish symbol options for the screen displays. There are three options. Press OFF Displays echoes as dots on the screen. Displays any echoes returned that match the profile of a fish as a fish symbol in one of three sizes: Strongest echo Average echo Weakest echo Use the FISH FILTER setting to adjust the fish detection. (see section 4-9) OFF to select: Echoes which are not recognised as fish are displayed as dots on the screen. Displays any echoes returned that match the profile of a fish as a fish symbol in one of three sizes as above. The depth of the fish is shown to the left of the symbol. Echoes which are not recognised as fish are displayed as dots on the screen.

4-4 CONTRAST menu

Select MAIN MENU - SETUP - CONTRAST to display the contrast setting box and the current setting. The contrast level can be set at any level between 0 and 16. The default setting is 6. Press or to increase or decrease the setting to the required level. Then press to exit.

4-5 ZOOM SPLIT

Select OFF to obtain a zoom only screen. (full screen zoom) Select ON to obtain a split zoom / history screen (default)
4-6 LOG menu (FISH 4431 ONLY)
Select MAIN MENU - SETUP - LOG to display the available options. Press or to highlight an option:

ZERO TRIP LOG

Resetting the trip log will return the trip log value to zero. The trip log is retained in the fishfinder memory so it retains the distance value if the fishfinder is switched off during a trip. Therefore, the trip log needs to be reset manually each time the user wishes to log a trip. Press or to highlight ZERO TRIP LOG, then press to select it. The message box ZERO TRIP LOG YES appears. Press to select YES or NO. Then press to reset the trip log and exit. or
Selects which log is displayed on the DATA screen, TOTAL or TRIP. Press to choose between TRIP or TOTAL. Both logs are retained in the NAVMAN fishfinder but only the selected log is displayed.

ZERO ALL LOGS

Resetting both logs will return both the trip log and the total log values to zero. Press or to highlight ZERO ALL LOGS, then press to select it. The message box ZERO ALL LOGS YES appears. Press to select YES or NO. Then press or to exit.

4-7 INSTALL menu

Use this menu at installation time, to select the language and to enter the keel offset value, the number of engines and the fuel tank size. The INSTALL menu can also be used to calibrate the water temperature and boat speed. Select MAIN MENU - SETUP - INSTALL to display the menu. Press or to highlight an option.

KEEL OFFSET

Keel offset is the distance between the location of the depth transducer and the point the displayed depth is measured from. Enter a keel offset value when the transducer is located below the water surface but a display of total water depth is required, or when the depth of water below the boats keel is required. Press or to select KEEL OFFSET, then press to display the keel offset box. Negative values display the depth as measured from a point below the transducer (e.g. keel). Positive values display the depth as measured from a point above the transducer (e.g. water surface). Press or to increase or decrease the value.

NMEA Instruments (F4431 ONLY)
Use the white wire, if desired, to connect the fishfinder to other NMEA instruments such as NAVMANs depth repeater. (See section 5-5 for more information).
5-5 Connecting a FISH 4430/4431 to other instruments
Several NAVMAN instruments can be connected together to share data such as Depth or Speed. The FISH 4431 uses the NMEA protocol to output data to other instruments. instrument over an NMEA line can be read and displayed by another instrument that accepts NMEA 0183 Version 2. Depth, speed and temperature data is output by the FISH 4431 and can be read and displayed by the NAVMAN REPEAT 3100, DEPTH 2100, GPS Chartplotter (5000 series), or other NMEA instrument.
NMEA is an industry standard for marine instrument communications. Data sent by one
REPEAT 3100 Repeater for depth, speed, water temperature and battery voltage. Can accept many other NMEA data inputs from other instruments.
DEPTH 2100 Depth repeater.
Please contact your NAVMAN dealer for information on NAVMANs full range of NMEA enabled instruments and connection options.
Appendix A - Specifications
Depth range 2 ft (0.6 m) to 600 ft (180 m). FSTN greyscale. Screen resolution 160 high x 120 wide (pixels). White multi-level back lighting. 10 to 16.5 V DC. 280 mA min - no backlighting. 400 mA max - full backlighting. 32 to 122F (0 to 50C). 26 ft (8 m) - FISH ft (10 m) - FISH seconds at 100 feet (30 m). 200 kHz. 150 Watts RMS @ 13.8 V DC. Max 20 soundings/second Better than 10 micro volts RMS.
27.9 mm 30.5 mm 126.0 mm (5) (1.1) (1.2)
Standards Compliance EMC: USA FCC Part 15 Class B. Europe (CE) IEC60945 New Zealand & Australia (C Tick) CISPR 22 Environment: IPx6 & IPxto 99.9F (0 to 37.7C) Resolution 0.1 units. 1 to 50 kn (57.5 mph, 96.6 kph). 0.0 to 9.9, 10 to 50. NMEA 0183 (Ver 2.0) 4800 Baud. Temperature measurement range

Display type

Supply voltage Supply current
Speed range Speed resolution Communications NMEA output NMEA (0183 format) is a standard for interfacing marine electronic devices. The NAVMAN fishfinder can output the following data: DBT (Depth Below Transducer). DPT (Depth and Keel offset). TDK (Depth NAVMAN - proprietary). TKV (Speed NAVMAN - proprietary). VHW (Speed). MTW (Water temperature). XDR (Battery voltage).
Operating temperature Transom transducer cable length
Typical depth acquisition time from startup Transmit frequency Transmit power Transmit rate Receiver sensitivity

143.5 mm (5.6)

126.0 mm (5)

88.5 mm (3.5)

Appendix B - Troubleshooting
This troubleshooting guide is written with the assumption that the user has read and understood the relevant sections in this manual. It is possible in many cases to solve difficulties without having to send the display unit back to the manufacturer for repair. Please follow this trouble-shooting section before contacting the nearest NAVMAN dealer. There are no user serviceable parts. Specialised methods and testing equipment are required to ensure that the display unit is reassembled correctly and is waterproof. Users who service a NAVMAN fishfinder themselves will void the warranty. Repairs to the FISH 4430/4431 may only be carried out by a service centre approved by NAVMAN. If the display unit must be sent into a service centre for repair, it is essential to send in the transducer(s) at the same time. More information can be found on our Website: www.navman.com 1. The fishfinder wont turn on: a) NAVMAN fishfinders are designed to operate on 12 volt battery systems, where the voltage may vary from 10 to 16.5 volts. If an excessive voltage is supplied to the unit, a resettable fuse will be tripped, turning the display unit off. b) Check that the power cable LT connector at the back of the display unit is securely plugged in and the collar is locked in place. The collar must be secure for watertight connection. c) Measure the battery voltage while the battery is under load - turn on some lights, radio, or other electrical equipment connected to the battery. If the voltage is less than 10 volts: The battery terminals or wiring on the terminals may be corroded. The battery may not be charging correctly or may need replacing. d) Inspect the power cable from end to end for damage such as cuts, breaks or squashed sections. e) Ensure that the red wire is connected to the positive battery terminal and the black wire to the negative battery terminal. If wired for the Auto Power option, ensure the yellow wires are connected to ignition circuit. Also check the boats main switch circuit (see section 5-4). f) Check for corrosion on the power cable LT connector and clean or replace if required. g) Check fuses that are placed in line with the power cable. A fuse can be blown despite appearing to be good, or the fuse may be corroded. Test the fuse or replace it with a fuse known to be good. 2. The fishfinder wont turn off: The fishfinder may have been wired with the Engine Hours feature enabled. In this case, the fishfinder cannot be turned off while the ignition power is on. (See Auto Power Wiring in section 5-4). 3. The fishfinder operates erratically: a) Check that the transducer does not have debris (e.g. weed, plastic bag) caught around it. b) The transducer may have been damaged during launching, running aground, or running underway with debris etc. If the transducer has been impacted, it may have been kicked up on the bracket. If it is not physically damaged, reset the transducer back to its original postion. (See the Transducer Installation Guide for more information). c) When in water less than 2 feet (0.6 m) the bottom and depth readings may become inconsistent and erratic. This depth is measured from the transducer and does not allow for any keel offset setting. d) Manual Gain may be set too low, which may cause weak bottom echo, or no fish signals. If Auto Gain is disabled try increasing the gain.

4. Bottom is not displayed: a) The fishfinder may have Manual Range selected and the depth may be outside the range value selected. Either change the fishfinder to Auto Range or select another depth range (see section 3-8).

Made in New Zealand

Lon 174 44.535E

Lat 36 48.404S

FISH / 4 431