TABLE OF CONTENTS

Introduction...iii
Product Support....iii Product Registration...iii

Getting Started...1

Packing List.... 1 Transducers.... 2 Optional Transducers... 2 Installation... 3 Selecting a Proper Location.. 3 Installing the Swivel Mount... 3 Flush Mounting the Fishnder 250/250C Unit. 6 Connecting the Power/Data Cable.. 7 Interfacing.... 8 Installing the Transducer.. 10 Transom Mount Installation.. 10 Shoot-Thru-Hull Installation... 11 Testing the Installation... 12 Using the Keypad... 13 Using the Sonar Page... 14 Using the Adjustment Menu.. 16 Adjustment Options... 17 Pausing the Sonar Page... 20
Using the Main Menu.. 21 Graph Tab... 21 Tools Tab.... 23 Conguring Advanced Data Fields... 23 Temp (Temperature) Tab.. 25 Alarms Tab... 25 System Tab... 27 Units Tab.... 28 Sonar Tab... 28 Time Tab.... 30 Understanding Sonar.. 31 Transducer Coverage... 32 Understanding the Graph.. 33 Whiteline... 34 Thermoclines... 35

Appendix...36

Basic Operation...13
Physical Specications... 36 Power... 36 Sonar... 36 Cleaning and Storage... 36 Messages and Alarms... 37 Software License Agreement.. 38 Limited Warranty.. 38

Index...40

GETTING STARTED > PACKING LIST

GETTING STARTED

Packing List
Before installing and using your Fishnder 250/250C, check to see that your package includes the following items. The package part number can be found on the outside of the box. If any parts are missing, contact your Garmin dealer immediately. Fishnder 250 Standard Package (010-00343-00 w/o transducer):
Fishnder 250 Unit Swivel-Mount Bracket and Knobs Power/Data Cable Owners Manual Self-Adhesive Quick Reference Guide Protective Cover Flush Mount Hardware Kit
Fishnder 250C Standard Package (010-00341-00 w/o transducer):
Fishnder 250C Unit Swivel-Mount Bracket and Knobs Power/Data Cable Owners Manual Self-Adhesive Quick Reference Guide Protective Cover Flush Mount Hardware Kit
Fishnder 250C Optional Package (010-00341-01) includes Standard Package, plus:
Dual Frequency (200/50kHz, 10/40) Plastic Transom Mount Transducer with Depth and Temp Separate Speed Sensor
Fishnder 250C Optional Package (010-00341-02) includes Standard Package, plus:
Fishnder 250 Optional Package (010-00343-01) includes Standard Package, plus: Fishnder 250 Optional Package (010-00343-02) includes Standard Package, plus:
Single Frequency (200kHz, 14) Plastic Transom Mount Transducer with Depth and Temp Separate Speed Sensor NOTE: For the most recent list of available accessories for your unit, current user manuals, and software updates, visit our Web site at www.garmin.com.
Dual Frequency (200/50kHz, 10/40) Plastic Transom Mount Transducer with Depth and Temp
Single Frequency (200kHz, 14) Plastic Transom Mount Transducer with Depth and Temp

The Fishnder 250/250C must be properly installed according to the following instructions to get the best possible performance. To complete the installation, you need the appropriate fasteners and tools. Verify that all cables can reach the unit mounting location, and take time to read through these instructions prior to installation. Be sure to always wear safety goggles and a dust mask when drilling, cutting, or sanding. If you experience difculty installing the unit, contact Garmin Product Support or seek the assistance of a professional installer.
When choosing a location for the unit, consider the following conditions:
There should be at least a 3 (8 cm) clearance behind the case
to allow connection of the transducer and power/data cables. The mounting surface should be sturdy enough to support the unit and protect it from excessive vibration and shock.
NOTE: The temperature range for the Fishnder 250/250C is 5F to 130F (-15C to 55C). Extended exposure to temperatures outside this range (in storage or operating conditions) may cause failure of the LCD screen. This type of failure and related consequences are NOT covered by the manufacturers limited warranty.
Selecting a Proper Location
Choose a location that provides optimal viewing as you operate the vessel and allows easy access to the units keypad. Select a mounting surface capable of supporting the weight of the unit and protecting it from excessive vibration and shock. DO NOT mount the unit in an area exposed to extreme temperature conditions. When installing the mounting bracket, allow room for the routing and connection of the power and transducer cables.
Installing the Swivel Mount
The Fishnder 250/250Cs compact, waterproof case is suitable for mounting in exposed locations or at the nav station. The unit comes with a swivel-mount bracket that can be used for console or overhead mounting.
Fishnder 250/250C Owners Manual 3
To install the swivel-mount bracket:
Tools (not included)Drill, screwdriver (Phillips or standard), and either of the following: Three #8 (4mm) pan head machine bolts with matching nuts and washers and a 5/32 (5mm) drill bit. Three #8 pan head self-tapping screws and an appropriately-sized drill bit for drilling starter holes. Using the swivel base as a template, mark the location of the three holes that are used to secure the bracket to the mounting surface. Drill the mounting holes. If securing the base with machine bolts, drill three 5/32 (5mm) holes at the locations you marked. If securing the base with self-tapping screws, drill starter holes at the locations you marked. Starter holes should generally be no deeper than half the screw length. Secure the swivel base with three bolts or screws. DO NOT OVERTIGHTEN. Place the rest of the mount over the swivel base and secure with the short knob.

To ush mount the Fishnder 250/250C:
Connecting the Power/Data Cable
The power/data cable connects the Fishnder 250/250C to a 10-35 Volt DC system and provides interface capabilities for connecting external devices. The color code in the diagram (page 9) indicates the appropriate harness connections. If it is necessary to extend the power/data wires, use a wire of comparable size and keep your extension as short as possible. The unit can be wired directly to your boats battery or to an unused holder on your boats fuse block. When connecting the unit directly to the battery, make sure the 2-Amp in-line fuse supplied with the unit is installed. If needed, use a 2-Amp ACG/3AG replacement fuse. If you decide to route power through the boats fuse block, remove the in-line fuse holder on the units power/data cable.
1. Determine the polarity of the voltage source using a test light or voltmeter. 2. Connect the Red (+ or positive) wire to the positive voltage terminal. (If using the boats fuse block, route the positive connection through the fuse, as shown on the diagram.) 3. Connect the Black (- or ground) wire to the negative voltage terminal. 4. Install or check the 2-Amp fuse (either on the boats fuse block or in the in-line holder).
To 10-35 Volt boat supply

2-Amp fuse

To connect the power/data cable to a voltage source:

Boat ground

Black wire Red wire

To Fishnder 250/250C

The Fishnder 250/250C can be connected to another piece of NMEA compatible electronic equipment, such as a Garmin GPS (Global Positioning System). If equipped with a capable transducer, the Fishnder 250/250C can send depth, temperature, and speed information to the NMEA device. It can also mark a location (page 20) that could be displayed on another device and can accept GPS navigational data (page 23), such as position, time, course, distance, etc. Refer to the wiring diagram on the following page for interfacing the Fishnder 250/250C with other devices. To connect the power/data cable to a GPS or other NMEA device:
The Fishnder 250/250C allows for NMEA 0183, Version 2.3 input/output with a compatible GPS or navigation device. NMEA Input/Output must be set to On to send/receive data (page 27). For additional information on using your Fishnder 250/250C with NMEA devices, see pages 20 and 27. The following sentences are for NMEA 0183, Version 2.3: InputGPBOD, GPBWC (only used if RMB not present), GPGGA, GPGLL (only used if GGA not present), GPRMB, GPRMC, GPXTE (only used if RMB not present) OutputSDDBT, SDDPT, SDMTW, SDVHW, SDWPL* (only if a waypoint is marked in Pointer mode)
*Garmin GPS units will accept an SDWPL (WPL) NMEA sentence and create a waypoint (saved location) at that position (page 20). For compatibility with other brands of GPS or NMEA capable navigation devices, check with those manufacturers to see if their units accept/store NMEA 0183 SDWPL sentences/waypoints. The Fishnder 250/250C does not store the actual waypoint. Only the receiving device, if capable, will store the waypoint.

To permanently install the transducer:

Testing the Installation

Since water is necessary to carry the sounders sonar signal, the transducer must be in the water to work properly. It is not possible to get a depth/distance reading when out of the water. As the unit powers on, it should immediately start showing the bottom. Verify that the unit is not in the Simulator mode. If the unit is in the Simulator mode, make sure that the transducer is connected properly to the unit. When you place your boat in the water, CHECK FOR LEAKS around any screw holes that have been added below the water line. DO NOT leave your boat in the water for an extended period of time without checking for leaks. Begin testing the installation at a slow speed. If the sonar appears to be working properly, gradually increase the boats speed while observing the sonars operation. If the sonar signal suddenly is lost or the bottom return is severely degraded, note the speed at which this occurs. Return the boat to the speed the signal was lost. Make moderate turns in both directions and see if the signal improves. If the signal strength improves while turning, adjust the transducer so that it extends another 1/8" (3mm) below the transom of the boat. It may take several adjustments to eliminate the degradation. If the signal does not improve, it may be necessary to move the transducer to a different location.
NOTE: When adjusting the depth of the transducer, make the adjustments in small increments. Placing the transducer too deep can adversely affect the boats performance and put the transducer at greater risk of striking underwater objects.
Though it is possible to perform some checks with the boat trailered, the boat should be in the water to properly test the sonar installation. Press the POWER/BACKLIGHT key (page 13) and the Fishnder 250/250C should power on. If the unit fails to power on, verify that the power/data cable is seated properly in the back of the unit, the Red and Black wires are connected to the correct polarity, and the 2-Amp fuse is installed and not blown. If the unit is connected to a power supply that exceeds 35 Volts DC, a Battery Voltage High warning is displayed and the unit turns off. If the unit does not detect a transducer, it automatically enters Simulator mode. When the unit detects a transducer on initial power up, a Please set up transducer message is displayed. Press the ENTER key (page 13) to select the transducer type. Highlight your transducer type with the ARROW keys and press ENTER. Press ADJ/MENU to return to the Sonar display.

BASIC OPERATION > USING THE KEYPAD

BASIC OPERATION

Using the Keypad
NOTE: Press and release a key to activate its primary function. Pressing and holding a key activates its secondary function (if available).
The keypad contains the following keys: ARROW Keyspress to select (highlight) menu options and enter data. Press to control movement of the cursor when paused in Pointer mode. Allows direct control of Sonar page adjustments. ENTER Keypress to select a highlighted menu option. When entering data, allows you to initiate entry and then accept the selected value(s). When paused in Pointer mode, press to create a waypoint at the Pointer position (if interfaced with compatible NMEA GPS).
ADJ/MENU Keyfrom the Sonar screen, press and release to display the Adjustment Menu. Press and hold to access the Main Menu for unit conguration. From either menu, press and release to return to the Sonar page. POWER/BACKLIGHT Keypress and hold to turn the unit on and off. While the unit is on, press and release to display the light/contrast adjustment window. See page 14 for more information.
BASIC OPERATION > USING THE SONAR PAGE

Using the Sonar Page

The Sonar page is where your Fishnder 250/250C becomes a powerful shnder/asher. If the unit does not detect a transducer, a Sonar Turned Off message is displayed on the Sonar page. If in Simulator mode, a Running Simulator message appears. You can adjust the units backlight and contrast settings to improve screen readability.
1. Press and release POWER/BACKLIGHT to display the light/contrast adjustment window. The adjustment window automatically disappears when idle for 20 seconds. 2. Press the Up or Down ARROW keys to change the backlight setting. Press and release POWER/BACKLIGHT to toggle the backlight setting between maximum, user-set, and minimum brightness levels. 3. Press the Left or Right ARROW keys to change the contrast setting. 4. Press ENTER to return to the Sonar page.
To change the backlight/contrast settings:
The currently selected adjustment option (page 17) is displayed in the top left of the screen. Directly below the adjustment option, the screen displays numeric data such as Depth, Water Temperature and Water Speed (pages 23-24). The middle of the page contains a right-to-left moving sonar image of the water beneath your boat. Items appear as they pass under your transducer. Items on the right side of the screen are closer to you than those on the left. Along the right side of the screen is a scale that reects the depth of the area being displayed.

a higher gain percentage. If there is too much detail or if the screen is cluttered, lowering the sensitivity may increase the clarity of the display.
Bar represents area shown on 2x view
Target Leveladjusts which colors (Fishnder 250C) or shades of gray (Fishnder 250) are used to display sonar information. A Color Bar (page 23) is displayed on the right side of the screen as you adjust this setting. A higher percentage results in more strong-signaled colors or shades (page 15) displayed on the Sonar page. A lower percentage results in more weaker-signaled colors or shades (page 15) displayed on the Sonar page. This setting does not increase/ decrease the unit Gain. Whitelinecontrols how the unit displays information about the bottom type (hard or soft). When turned Off, all highintensity bottom returns are displayed as red on the Fishnder

Sonar view adjustment

250C and black on the Fishnder 250. When set at Normal or 1-100%, this option can be used to better determine bottom hardness. See page 34 for more information on this feature. Frequencyallows you to choose a sonar operation frequency. The frequency is the pitch of the sound that the transducer sends and receives. You may choose 200kHz, 50kHz, or Dual frequency (when using a dual frequency transducer). Depth Lineadds a horizontal depth line across the display to measure the depth of underwater objects. The depth of the line is displayed in a box on the right side of the line. When the Depth Line adjustment window is visible, press the Up or Down ARROW keys to control the position of the line on the graph. Noise Rejecthelps lter unwanted noise from the graph. This option can be turned Off, set to Normal (automatically adjusts for optimum viewing), or set to a xed 1-100% setting. Higher noise rejection settings make the unit less likely to show sh or structures. Scrolladjusts the rate that the graph scrolls from right to left. If you are sitting still or the graph is moving too fast, slowing the scroll rate or pausing it can be benecial. Auto automatically adjusts the scroll rate according to the boats speed. (See also Automatic Scroll Speed Limit on page 29.)
Size Splitenables width adjustment of the Sonar page split screen. This option is only available when a split zoom is selected. You may adjust the size of the split window anywhere from 1/4 to 3/4 width from the right half of the Sonar page. Defaultsrestores adjustment options back to original factory settings.

Advanced Data Fieldstoggles On or Off the advanced
data elds on the Sonar page. Congure Advanced Data Fieldsactivates the advanced data eld setup screen. Conguring Advanced Data Fields The top left of the screen contains congurable data elds for the Sonar display. By default, the Basic display shows Depth, Water Temperature, and Speed (depending on the Graph tab settings and type of transducer/sensors attached). The Congure Advanced Data Fields option in the Tools tab allows you to customize the data elds that appear. The data eld setup screen shows a larger, congurable data eld with a white background. The setup screen allows you to select the type of data displayed and either a Narrow (small) or Wide (large) size format for each data eld.

Main MenuTools tab

Flasherthis option activates a graphic asher
representation, displayed on the right side of the graph. The graphic asher displays structure and bottom returns much the same as a true asher. You may nd this feature particularly useful when using sh symbols (pages 15, 22). Color Barshows a gradient scale of the current Target Level setting (page 18). Temperature Graphtoggles On or Off the display of a temperature graph on the Sonar page.
Sonar page with advanced data elds 23
The following selections require the proper NMEA data (pages 8-9) in order to display information in a data eld: Bearing, Compass, Course, Distance to Next, Off Course, Pointer, Position, Speed, Time of Day, Track, Turn, and VMG. NMEA Input/Output must also be enabled to receive this data (page 27). To toggle the data eld display:
1. Use the ARROW keys to highlight Advanced Data Fields and press ENTER. 2. Select On or Off and press ENTER.
appear with a black background and the associated eld on the left is outlined with a moving dotted line.
1. Using the ARROW keys, press Left to modify an existing eld or Right to add a new one, then press Up or Down to highlight the desired item. Press ENTER. The available options appear on the right. 2. Select an option from the list on the right and press ENTER. You may choose to display a Wide or Narrow sized format (some data elds are only available in Wide format), arrange the display order with Move Up or Move Down (Narrow data elds always arrange below Wide data elds), Remove a data eld, or Replace a data eld. For Replace, choose a replacement item from the list and press ENTER. 3. Highlight OK and press ENTER to save changes.

Main MenuSonar tab Fishnder 250/250C Owners Manual
Water Typeallows you to select either Fresh or Salt to
ensure accurate readings on the unit. Sound waves travel at different rates through each type. Depth Numbercontrols the efciency of the digital depth update rate. Fast Sonar Update updates quicker and is recommended for low-noise, deeper water (>50 ft.). Auto is best for shallow water or high noise areas, has a slower screen update, and is best used if you travel a wide variety of depths. If the unit is unable to track the bottom for any reason, the digits in the depth window ash on and off to alert you. Automatic Scroll Speed Limitmatches the scroll rate (page 19) to the speed of your vessel (if equipped with a speed sensor or receiving GPS NMEA input). Entering your maximum cruising speed will produce a 100% scroll rate when you reach that speed. One half of that speed will produce a 50% scroll rate, etc. Keel Offsetallows you to offset the surface reading for the depth of a keel in order to measure depth from the bottom of your keel instead of from the transducers location. Enter a positive number to offset for a keel. Enter a negative number to compensate for a large vessel that may draw several feet of water. The Keel Offset is reected in the depth reading.
Transducer at surface Enter a positive (+) Keel Offset number to show the depth from the bottom of the keel.
Transducer at bottom of keel Enter a negative (-) Keel Offset number to show the depth from the surface.
Transducer Typeallows you to specify what type of
transducer you are using, if you are not in Simulator mode. Do not use User Dened unless instructed to do so. Calibrate Water Speedappears only if you are using a speed-capable transducer/sensor. Calibration is required to ensure that the Water Speed displayed on your unit is accurate. The unit automatically uses GPS ground speed (if available via NMEA input) for comparison on the calibration. If a GPS ground speed is not available, use either your boats speedometer reading (not always accurate) or a stopwatch to determine your speed over a certain distance (distance / time = speed). It is recommended that the calibration take place in water having little or no current.
BASIC OPERATION > USING THE MAIN MENU 1. Use the ARROW keys to highlight Calibrate Water Speed and press ENTER. 2. Bring the boat to a cruising speed. Both the top GPS ground speed and uncalibrated water speed will be shown at the bottom of the calibration window. Note your top speed, then stop the boat and press ENTER. 3. By default, the top speed will automatically show in the What was your top water speed? eld. If a ground speed is not available, the top uncalibrated water speed is used instead. If the new speed is correct, highlight OK and press ENTER. To manually enter a calibration, press ENTER on the speed eld, enter a new speed and press ENTER. NOTE: If the boat is not moving fast enough or the speed sensor is not registering a speed, a Boat Is Not Moving Fast Enough To Calibrate message is displayed at the bottom of the screen. Check that the speed sensor wheel is moving or safely increase boat speed. If there is a problem with the speed sensor/unit or if a speed senor is not installed, a Water Speed Sensor Is Not Working message is displayed at the bottom of the screen. Check the connections of speed sensor cables.

The sh in the diagram is currently in a dead zone and is not detected by the sonar. The sh is in the coverage area of the transducer, but the rst strong return set the bottom level above the sh. The rst strong return to reset the bottom level below the sh will enable the sh to be detected. The following pages will show how this data can help you improve your shing.
The area covered by the transmitted sound waves is determined by the cone angle of the transducer and the water depth. Cone angles may vary among different types of transducers. For example, a 50kHz frequency may provide a wide 40 cone angle with a coverage width that is approximately 2/3 of the water depth. As shown in the diagram on the right, the 40 cone angle (50kHz frequency) approximately covers the area of a 20-foot diameter circle at a 30-foot depth. A 200kHz frequency may provide a narrow 10 cone angle with a coverage width that is approximately 2/10 of the water depth. As shown, the 10 cone angle (200kHz frequency) approximately covers the area of a 6-foot diameter circle at a 30-foot depth. When using the Fishnder 250/250C with Frequency set to Dual, the unit alternately transmits 50kHz and 200kHz signals and combines the information. This allows the unit to cover a large area and still retain good bottom resolution. The unit uses the narrow cone angle (200kHz) to display detailed bottom information (keeping dead zones to a minimum) and the wide cone angle (50kHz) for the large coverage area.

Transducer Coverage

200kHz - 10 cone angle 6-foot coverage at 30-foot depth
50kHz - 40 cone angle 20-foot coverage at 30-foot depth

Transducer coverage

Fish returns from the wide and narrow beams appear differently on the display. The wide beam tends to show longer sh returns than the narrow beam, as shown below.

Wide cone angle

Narrow cone angle

Understanding the Graph

It is important to understand that the unit does not display a 3-D representation of the underwater environment. The unit can display multiple items at the same time and determine when they were received but not where they originated. Examples 1 and 2 provide a look at the underwater world from a top view and illustrate how these views would be displayed on the graph. On both graphs it appears that the sh and tree are side-byside, as shown in Example 1. However, when we look at Example 2, we see that the sh can be several feet from the tree. It is important to remember that the Fishnder cannot determine where in the coverage area the tree or sh are, only that the returns were received at the indicated depths in the same time frame.

Fish AlarmA sh is detected. The unit displays an icon and beeps (if enabled). (This alarm does not display a message banner.) Running SimulatorThe unit is in Simulator mode. This message reappears after 2 minutes of inactivity. (If the unit does not detect a transducer attached, it automatically enters Simulator mode.) Shallow Water AlarmThe Shallow Water Alarm depth has been reached. Sonar Failed Unit Needs RepairThe unit has an internal problem. Contact your dealer or Garmin Product Support to have the unit serviced. Timer AlarmThe Timer Alarm value has counted down to 00:00:00. Transducer Disconnected Sonar Turned OffThe unit has no transducer attached, has a bad cable/transducer, or has a disconnected transducer cable. If the transducer cable is removed while the unit is on, reconnect and cycle power. Water Speed Sensor is not WorkingThe speed sensor is not detected. Check the connections. Water Temperature AlarmThe Water Temperature Alarm setting has reached a value above, below, inside, or outside of the specied value(s).
APPENDIX > SOFTWARE LICENSE AGREEMENT, LIMITED WARRANTY
Software License Agreement
BY USING THE FISHFINDER 250/250C, YOU AGREE TO BE BOUND BY THE TERMS AND CONDITIONS OF THE FOLLOWING SOFTWARE LICENSE AGREEMENT. PLEASE READ THIS AGREEMENT CAREFULLY. Garmin grants you a limited license to use the software embedded in this device (the Software) in binary executable form in the normal operation of the product. Title, ownership rights, and intellectual property rights in and to the Software remain in Garmin. You acknowledge that the Software is the property of Garmin and is protected under the United States of America copyright laws and international copyright treaties. You further acknowledge that the structure, organization, and code of the Software are valuable trade secrets of Garmin and that the Software in source code form remains a valuable trade secret of Garmin. You agree not to decompile, disassemble, modify, reverse assemble, reverse engineer, or reduce to human readable form the Software or any part thereof or create any derivative works based on the Software. You agree not to export or re-export the Software to any country in violation of the export control laws of the United States of America. WARNING: This product, its packaging, and its components contain chemicals known to the State of California to cause cancer, birth defects, or reproductive harm. This Notice is being provided in accordance with Californias Proposition 65. If you have any questions or would like additional information, please refer to our Web site at http://www.garmin.com/prop65.

Limited Warranty

This Garmin product is warranted to be free from defects in materials or workmanship for one year from the date of purchase. Within this period, Garmin will at its sole option repair or replace any components that fail in normal use. Such repairs or replacement will be made at no charge to the customer for parts or labor, provided that the customer shall be responsible for any transportation cost. This warranty does not cover failures due to abuse, misuse, accident or unauthorized alteration or repairs. THE WARRANTIES AND REMEDIES CONTAINED HEREIN ARE EXCLUSIVE AND IN LIEU OF ALL OTHER WARRANTIES EXPRESS OR IMPLIED OR STATUTORY, INCLUDING ANY LIABILITY ARISING UNDER ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, STATUTORY OR OTHERWISE. THIS WARRANTY GIVES YOU SPECIFIC LEGAL RIGHTS, WHICH MAY VARY FROM STATE TO STATE. IN NO EVENT SHALL GARMIN BE LIABLE FOR ANY INCIDENTAL, SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES, WHETHER RESULTING FROM THE USE, MISUSE, OR INABILITY TO USE THIS PRODUCT OR FROM DEFECTS IN THE PRODUCT. Some states do not allow the exclusion of incidental or consequential damages, so the above limitations may not apply to you. Garmin retains the exclusive right to repair or replace the unit or software or offer a full refund of the purchase price at its sole discretion. SUCH REMEDY SHALL BE YOUR SOLE AND EXCLUSIVE REMEDY FOR ANY BREACH OF WARRANTY. To obtain warranty service, contact your local Garmin authorized dealer or call Garmin Product Support for shipping instructions and an RMA tracking
APPENDIX > LIMITED WARRANTY
number. The unit should be securely packed with the tracking number clearly written on the outside of the package. The unit should then be sent, freight charges prepaid, to any Garmin warranty service station. A copy of the original sales receipt is required as the proof of purchase for warranty repairs. Garmin International, Inc. 1200 E 151st Street Olathe, Kansas 66062 U.S.A. Tel. 913/397.8200 Fax. 913/397.8282 Garmin (Europe) Ltd. Unit 5, The Quadrangle Abbey Park Industrial Estate Romsey, SO51 9DL U.K. Tel. 44/0870.8501241 Fax 44/0870.8501251 Online Auction Purchases: Products sold through online auctions are not eligible for rebates or other special offers from Garmin. Online auction conrmations are not accepted for warranty verication. To obtain warranty service, an original or copy of the sales receipt from the original retailer is required. Garmin will not replace missing components from any package purchased through an online auction. International Purchases: A separate warranty is provided by international distributors for units purchased outside the United States. This warranty is provided by the local in-country distributor and this distributor provides local service for your unit. Distributor warranties are only valid in the area of intended distribution. Units purchased in the United States or Canada must be returned to the Garmin service center in the United Kingdom, the United

Fishnder 250/250C Owners Manual 39
States, Canada, or Taiwan for service. The Garmin Fishnder 250/250C has no user-serviceable parts. Should you ever encounter a problem with your unit, please take it to an authorized Garmin dealer for repairs. The Fishnder 250/250C is fastened shut with screws. Any attempt to open the case to change or modify the unit in any way will void your warranty and may result in permanent damage to the equipment.
Accessories 2 Adjustment Menu 16 Advanced Data Fields 23 Alarms 25 Alarms Tab 25 ARROW Keys 13 Automatic Scroll Speed 29 Background Color 22 Backlight 13 Basic display 23 Battery Alarm 26 Beeper 27 Bottom Lock 18 Bottom Split 18 Calibrate Water Speed 29, 30 Cleaning 36 Color, Background 22 Color Bar 23 Contrast 13 Custom Range 22
Date 30 Daylight Saving Time 30 Deep Water Alarm 26 Defaults 19, 27 Depth 14, 17, 20, 22, 28 Depth Line 19 Depth Number 22, 29 Depth Units 28 Display Mode 27 Distance Units 28 Drift Alarm 26

Installation 3, 12

Keel Offset 29 Language Selection 27 Log and Graph Scale 25 Log Duration 25
Main Menu 22 MENU Key 13 NMEA 8, 20, 27, 29, 30 NMEA Setup 27 Noise Reject 19 Number Size 22
ENTER Key 13 Factory Settings 27 Fish Alarm 26 Fish Symbols 15, 22 Flasher 23 Fuse 7
Gain 18 Graph 33 Graph Tab 21
Packing List 1 Pointer 8, 13, 16, 20, 24 Position Format 28 POWER/BACKLIGHT key 12, 13 Power Up 12 Preface iii

Heading 28

Data Fields 14, 23 40
Range 17 Registration iii Fishnder 250/250C Owners Manual
Reset Odometer 27 Reset Scale 25 Scale 22 Scroll 19, 20 Scroll Speed 29 Setting an Alarm 26 Set Up Tab 33 Shallow Water Alarm 26 Simulator 27 Size Split 19 Software Version 27 Sonar, Understanding 31, 32, 34 Sonar Page 14 Span 18 Specications 36 Speed Units 28 Split Screen 17, 19 Storage 36 System Tab 27 Target Level 18 Temperature 22 Temperature Graph 23 Temperature Tab 25 Temperature Units 28 Testing the Installation 12 Time 30 Fishnder 250/250C Owners Manual Timer 26 Time Duration 25 Time Format 30 Time Tab 33 Time Zone 30 Tools Tab 23 Transducer 2, 11, 12, 19, 31, 32 Transducer Type 29
Understanding Sonar 33, 34 Understanding the Graph 33 Units Tab 28

View 18

Water Speed 22, 23, 29 Water Temperature 23 Water Temperature Alarm 26 Water Type 29 Whiteline 18, 34

Zoom 15, 17 ZOOM Key 13

For the latest free software updates (excluding map data) throughout the life of your Garmin products, visit the Garmin Web site at www.garmin.com.

Garmin Fishfinder

Garmin Fishfinder 120
Garmin Fishfinder 120: Se lo scopo visualizzare chiaramente i vostri obiettivi, lo strumento adatto il Fishfinder 120 con il suo schermo da 240 x 128 a 4 livelli di grigio, otterrete nitidezza e contrasto ottimali. Il Fishfinder 120 vi permette, inoltre, di visualizzare e modificare le impostazioni senza abbandonare la schermata del sonar. Caratteristiche tecniche: Profondit massima: 180 m, potenza: 100 Watt (RMS), 800 Watt (picco-picco), dimensioni display: 7.9 x 8.1 cm ; LCD FSTN a 4 livelli di grigio, cono 20, memoria interna che mantiene le impostazioni dellutente anche senza alimentazione esterna. Garmin Fishfinder 120: The Fishfinder 120 builds on the highly successful Fishfinder 80 as a feature-rich, affordable sonar device. It has one of the largest and highest-resolution displays of any fishfinder in its class, providing better separation and contrast for the recreational angler. The Fishfinder 120 allows you to view and change settings without leaving the sonar screen. It also has an internal backup system that automatically saves your settings and an "uninterrupted operation" feature so your sonar wont stop while youre changing settings. Packaged with the Fishfinder 120 is Garmin's innovative 360-degree swivel mount and quick-release mechanism to increase utility and security. Also included with the unit is a temperature-sensing 200-kHz transducer, which transmits at 800 watts (peak-to-peak) and 100 watts (RMS) to a maximum depth of 600 feet. The patented transducer design allows for mounting on either the transom or trolling motor. 240 x 128 pixel, four-level, grayscale FSTN display, Three-level adjustable incandescent backlighting for display and keypad, 3.3"W x 3.3"H (4.5" diagonal) viewing area, Internal memory, backup for user settings with power disconnected, graphic whiteline provides clear image of bottom hardness and structure, alarms for shallow water, deep water, battery voltage, and fish, adjustable range, gain, zoom, and scroll speed waterproof design to IPX-7 standards (submersible in three feet of water for up to 30 minutes). Code # 20354 - 155 x 125 x 66 mm - con trasdut. poppa 200 kHz / with transom transducer 200 kHz

Garmin Fishfinder 250

Garmin Fishfinder 250: Il Fishfinder 250 adatto sia per acque salate che dolci, ha uno schermo a gamma di grigio ad alta risoluzione. Caratteristiche tecniche: potenza di trasmissione 400 W (3200 da picco a picco) in singola frequenza, profondit 274 m, cono 20; potenza di trasmissione 500 Watt (4000 da picco a picco)frequenze 50 / 200 Hz, profondit 450 m, cono 10/40 (la pronfondit dipende dalla salinit dell'acqua, dal tipo di fondale e da altre condizioni), Schermo FSTN a 10 livelli di grigio, a 320 x 320 pixel. Schermo di 4,5 (11,43 cm) di diagonale, temperatura dell'acqua, interfacce antenna; alimentazione esterna; PC. Garmin Fishfinder 250: With its powerful sonar, high-resolution screens, abundant features and affordable price, the Garmin Fishfinder 250 will excite fishermen of all skill levels. The Garmin Fishfinder 250's high-performance sonar and high-resolution screens make fishing easy. Its single or dual-frequency sonar is dependable and intuitive to use. Suitable for both freshwater and saltwater, the Fishfinder 250 is available with either a dual-frequency 50/200 kHz transducer for deep-water applications, or a single-frequency 200 kHz transducer for shallow inland lakes and bays. All configurations feature Garmin's patented See-Thru technology which separates fish from thermoclines and structure and Depth Control Gain (DCG), for detailed images of structure and bottom densities. Additionally, anglers can connect a Garmin GPS receiver (sold separately) to the unit to mark waypoints directly from the Fishfinder's keypad. The Fishfinder 250's slim profile also makes it ideal for mounting in-dash or on the bow. The unique quick-release, one-knob tilt swivel-mount allows for easy viewing at any angle. Fishfinder 250 features: 320 x 320 pixel, grayscale, ten-level FSTN with adjustable CCFL backlight, Dual-frequency transducer: 500 watts (RMS), 4000 watts (PTP), Single-frequency transducer: 400 watts (RMS), 3200 watts (PTP) , Internal memory backup for user settings with power disconnected, Temperature log to maintain a graphical record of water temperature data, Adjustable range, gain, and zoom, and bottom lock, Alarms: shallow & deep water, fish by size, timer, water temperature, and low battery voltage. Code # 20358 - 155 x 124,4 x 73,66 mm - con trasduttore poppa 200 kHz / with transom transducer 200 kHz Code # 20352 - 155 x 124,4 x 73,66 mm - con trasdut. poppa 50/200 kHz / with transom transducer 50/200 kHz

Garmin Fishfinder 250C

Garmin Fishfinder 250C: Il Fishfinder 250C adatto sia per acque salate che dolci, vanta uno schermo TFT 16-color. Caratteristiche tecniche: potenza di trasmissione 400 W (3200 da picco a picco) in singola frequenza, profondit 274 m, cono 20; potenza di trasmissione 500 Watt (4000 da picco a picco)frequenze 50 / 200 Hz, profondit 450 m, cono 10/40 (la pronfondit dipende dalla salinit dell'acqua, dal tipo di fondale e da altre condizioni), Schermo FSTN a 10 livelli di grigio, a 320 x 320 pixel, Schermo di 4,5 (11,43 cm) di diagonale, temperatura dell'acqua, interfacce antenna; alimentazione esterna; PC. Comprende il sensore di velocit. Garmin Fishfinder 250C: Serious anglers and casual fishermen alike will love the new Garmin Fishfinder 250C with its powerful sonar, spectacular color display, abundant features and affordable price. The Garmin Fishfinder 250C's high-performance sonar and high-resolution, dazzling color screens make this no ordinary fishfinder. Its single or dual-frequency sonar is easy-to-use. "With the Fishfinder 250C, Garmin has delivered the highest-quality color sonar product. The Fishfinder 250C is available with either a dual-frequency 50/200 kHz transducer for deep-water applications, or a single-frequency 200 kHz transducer for shallow inland lakes and bays. Additionally, anglers can connect a Garmin GPS receiver to the unit to mark waypoints directly from the Fishfinder's keypad. The Fishfinder 250C's slim profile also makes it ideal for mounting in-dash or on the bow. Features: 320 x 320 pixel, sunlight-readable 16-color CSTN with adjustable CCFL backlight comes standard with a separate speed sensor, Dual-frequency transducer: 500 watts (RMS), 4000 watts (PTP) output Single-frequency transducer: 400 watts (RMS), 3200 watts (PTP) output, internal memory backup for user settings with power disconnected, temperature log to maintain a graphical record of water temperature data, adjustable range, gain, and zoom, and bottom lock, alarms: shallow and deep water, fish by size, drift, timer, water temperature, and low battery voltage. Code # 20356 - 155 x 124,4 x 73,66 mm - con trasduttore poppa 200 kHz / with transom transducer 200 kHz Code # 20355 - 155 x 124,4 x 73,66 mm - con trasdut. poppa 50/200 kHz / with transom transducer 50/200 kHz

Garmin Fishfinder 320C

Garmin Fishfinder 320: il pi avanzato ecoscandaglio Garmin e dispone di un trasduttore a doppia frequenza fornito di serie. Quando opera alla frequenza pi bassa vedrete un'area pi vasta sotto l'imbarcazione senza alcuna perdita nella profondit e le eco verranno visualizzate su magnifico display a colori dal prezzo competitivo. E' completo di trasduttore di velocit e temperatura. Caratteristiche tecniche: display a 16 colori, 234 W x 320 H pixels; 4,46 x 10,21 cm; LCD TFT, potenza di trasmissione di 500 W (RMS); 4000 W (da picco a picco), frequenza 50/200 kHz, profondit massima 458 m (la profondit dipende dalla salinit dell'acqua, dal tipo di fondale e da altre condizioni locali), consumo massimo di 12 W, dimensioni 16 x 15,7 x 8,2 cm, temperatura standard. Garmin Fishfinder 320: It is Garmin's first stand-alone color fishfinder for both freshwater and saltwater. This unit incorporates several software enhancements. Plus, it allows remote waypoint marking, which means you can send a specific location from your Fishfinder 320C to a Garmin GPS. Five-inch (diagonal), 16-color TFT display that's viewable in direct sunlight, user-selectable settings for overcast, sunny, and nighttime viewing Simple sonar interface, with vital information on depth, zoom, range, frequency, and gain one touch away Depth Control Gain automatically adjusts sonar sensitivity by depth and delivers a highly detailed image of bottom structure See-Thru technology separates fish returns from thermoclines and underwater structure to remove the guesswork in interpreting fish arches bottom lock gives anglers a constant view of the bottom within a user-configured depth parameter (e.g., viewing all activity from 40 feet down to the bottom), temperature log graphically records temperature data GPS repeater allows communication with a Garmin GPS, unit can be ordered with a single-frequency (200 kHz) transducer, dual-fequency (200/50 kHz) transducer, or display only (if you have a Garmin transducer already installed). Code # 20357 - 120 x 125,47 x 61,7 mm - con trasduttore poppa 50/200 kHz / with transom transducer 50/200 kHz