Raymarine L470 instruction manual Glossary of Terms

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Glossary of Terms

Glossary of Terms

Aft: Near or toward the rear part of the boat (nautical term).

Background noise: False or meaningless echo returns produced by bubbles, water turbulence, or debris

Bow: The front of the boat (nautical term).

Cavitation: Air bubbles in the water which affect the readings of a transducer. These are normally caused by mounting the transducer at an incorrect angle or location.

Chart Speed: The rate at which echoes scroll across the display.

Cursor: On a setup display, the place where the unit is ready to make a change or enter new information. This point is highlighted. You can move up or down the list or display using the < and V controls.

Deadrise angle: The slope or angle of the underside of the hull, mea- sured in the side-to-side direction.

Default value: A value or setting which is pre-loaded into the unit at the factory.

Fairing block: A block used when mounting a thru-hull transducer. The fairing block shims the transducer to align it on a perfect horizontal plane versus the rise of the hull.

Fathom: A unit of depth equal to 6 feet.

Frequency: The rate at which a sound source vibrates, or the rate at which a sound wave changes.

Fore: Near or toward the front part of the boat (nautical term).

Keel: The center of the hull, running from the bow to the stern.

kHz: “Kilo-Hertz” – a measure of frequency (For example, 200 kHz = 200,000 oscillations per second.)

Kick-up bracket: A bracket which is installed on the transom of a boat and holds the transducer in place. When the transducer strikes an obstruction, it is designed to release or “kick up” out of the water to prevent any damage.

Knot: One nautical mile per hour (1.15 statute miles per hour).

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Contents Raymarine Instruction ManualFishFinder L470 Contents InstallationIntroduction Operating Instructions4 Setup Instructions Maintenance and Troubleshooting SpecificationsList of Figures Pageviii Frequency Menu ItemAbout the FishFinder L470 1 - IntroductionIntroduction Optional Accessories System ComponentsStandard Equipment Standard TransducersTransducer switch box select between two L470 Installation 2 - InstallationAbout the Transducer Selecting the Correct Type of Transducer Use a transom-mount transducer ifUse a thru-hull transducer if Use an in-hull transducer ifAssembling the Transducer Bracket Positioning the Transom-Mount TransducerUse a trolling motor transducer if Use a Sidelooker transducerTransducer Mounted on Transom Transducer Bracket Side ViewAllow a clearance of at least 10 inches 254 mm 10 254 mm Transducer in released positionCorrect Mounting Position No!No!NoMounting the Transducer Mounting the Transom-Mount Transducer 3. Remove the two screws and the bracket covering the paddle wheels Installation Notes - Thru-Hull Transducer Installation Notes - In-Hull Transducer Installation Notes - Trolling Motor Transducers EMC Installation Guidelines Installation Notes - Transducer for Speed and Temperature OnlySuppression Ferrites Mounting the Display Unit - Standard Mount Dismounting the Display UnitDimensions 2-25/3270 mm 210 mmMounting the Display Unit - Flush Mount Flush-mount InstallationInstalling the Transducer Cable Disassembling from BracketCable feed-thru cap Cable clamp 1 25 mm Hull projections Installing Cable on TransomFiberglass 1/4 6mm Aluminum 1/2 13 mm Installing the Transducer Cable Installing the Transducer Cable - Sidelooker OptionInstallation with Separate Speed and Temperature Sensors Making the DC Power Connections DC 12V connector to battery T/D connector to transducer RED BLACK DC Power ConnectionsRF ground Calibrating the Sensors higher value for Speed Cal. If the display unit is reading high, use a smaller number for Speed Cal. You may enter any value between 75 and Controls on Display Panel 3 - Operating InstructionsOperating Instructions Left and right arrows - and Up and down arrows - andCLEAR Turning the Power On and Off Setup MemoryLamp/Contrast Menu Operating Pages ModeFunction See pageOnly if Sidelooker feature is turned onShallow alarm set FishFinder PageAuto frequency on Transducer frequency Top of display Fish alarm set From the System Setup Menu, you can turn this item off or Center of displayThis entry shows the speed of the boat through the water Bottom of display Choosing a Frequency Fish Indications When the boat is moving very fast50 kHz 200 kHz An arch-shaped image indicates a fishBottom Indications Hard Sand Soft Mud Bottom ConditionsRocks Window Page WindowContentsOption B Option D Option F Option H Option A Option C Option E Option GOptions for Window Page Sidelooker Page Once the Sidelooker feature has been turned on, you can reach the Sidelooker page easily. Press the or buttons on the Page Control Pad until the Sidelooker Page appears. The unit will present a display similar to Fig Here are the special items on this display Bottom/Shore Digital Page button. The Log may be reset to zero from the Zoom Mode A-Scope ModeBottom Lock Mode Performance ModesZoom Mode Performance ModesZoom display Zoom magnification A-Scope Bottom Coverage Mode Bottom coverage Bottom Lock Mode the selected range, then Bottom Lock will not display the bottom image 4 - Setup Instructions The Setup MenuSetup Instructions Fig.4-1Setup Instructions Range SettingSidelooker Sensitivity Setting Auto sensitivity Chart Speed Setting Changing the Chart Speed SettingFrequency Setting AUTO frequency Resetting the Log System Setup Menu Fig.4-8different languages. English is the default language which The unit can present the display information in one of sevenSetup Instructions Shallow Alarm For example, if the temperature reading onCLEAR conditions occurs shallow, deep, or fish alarm. For the water. You can silence the buzzer again by pressing theCode Units used for speedUnits used bySetup Menus for Zoom Mode Zoom Select Menufeature is particularly useful when fishing for species of fish button to leave this display, and store the Auto Zoom settingZoom Screen Split/Full Menu Item Setup Menus for Bottom Lock Mode Bottom Lock Range Menu ItemBottom Lock Split/Full Menu Item Setup Menu for Window Page Resetting from the Digital Page Setup Instructions for SidelookerSidelooker Range Menu Item Sidelooker Chart Speed Menu Item Sidelooker Sensitivity Menu ItemSidelooker View Menu Item Display Option Information ShownCombining Displays Resetting the Unit to Factory Defaults Default Settings Default - US model Default - Europe model5 - Maintenance and Troubleshooting Cleaning InstructionsTroubleshooting Suggestions Maintenance and TroubleshootingThe display unit “freezes” temporarily or permanently The display unit does not see the bottom or fish The FishFinder does not display fish archesThe depth setting flashes often The display unit shows lots of background “noise”How to Contact Raymarine For marine product and services informationFor accessories and parts Servicing a Thru-Hull TransducerFor product repair service For technical supportPrepaid Return Service Raymarine in EuropeMaintenance and Troubleshooting Specifications 6 - SpecificationsGeneral Information FishFinder Functions Feet, fathoms, metersConnector Diagrams ConnectorsGlossary of Terms GlossaryNautical mile 6076 feet Statute mile 5280 ftLimited Warranty Certificate Warranty Limitations