Furuno GP-1610CF manual Interpreting the Display, Zero line, Fish school echoes, Bottom echo

Page 53

3.24 Interpreting the Display

Zero line

The zero line (sometimes referred to as the transmission line) represents the transducer’s position, and moves off the screen when a deep phased range is used.

Zero line

Shift

Figure 3-21 Zero line

Fish school echoes

Fish school echoes will generally be plotted between the zero line and the bottom. Usu- ally the fish school/fish echo is weaker than the bottom echo because its reflection prop- erty is much smaller compared to the bottom. The size of the fish school can be ascertained from the density of the display.

Bottom echo

Echoes from the bottom are normally the strongest and are displayed in reddish brown color (in default color arrangement) but the color and width will vary with bottom com- position, water depth, frequency, sensitivity, etc.

In a comparatively shallow depth, a high gain setting will cause a second or sometimes a third or a fourth echo to be displayed at the same interval between them below the first echo trace. This is because the echo travels between the bottom and the surface twice or more in shallow depths.

The color of the bottom echo can be used to help determine the density of the bottom ma- terials (soft or hard). The harder the bottom, the wider the trace. If the gain is set to show only a single bottom echo on mud, rocky bot- tom will show a second or third bottom re- turn. The range should be chosen so the first and second bottom echoes are displayed when bottom hardness is being determined.

Intensity difference in water depth

Second bottom echo

Size of fish school

Small Large school school

Rock base

Mud and sand

Figure 3-22 Fish school echoes

Figure 3-23 Bottom echoes

3-10

Page 52 Page 54
Image 53
Page 52 Page 54
Contents Page First Edition MAR Safety Instructions for the Operator Safety InstructionsSafety Instructions for the Installer Table of Contents by Subject Setting Destination Table of Contents by Display Item Word to GP-1610CF Owners ForewordFeatures Display Unit System ConfigurationEquipment Lists InstallationStandard supply Optional equipment520-5PSD Mounting considerations Installation of Standard EquipmentInstalling the display unit Tabletop mounting Installing the antenna unitTypical antenna unit mounting locations Antenna unit mounting procedureFastening pipe to antenna Securing antenna to mast with vinyl tape Power cable WiringAntenna unit Transducer11 Display unit, rear view Installing the inside-hull mount transducer Installation of TransducersRemarks on installation Necessary tools13 Coating the transducer face with silicone sealant Attaching the transducerPress twice to select Manual Observing the pictureFinal preparation Transducer outline drawings Installing the thru-hull mount transducerTransducer mounting location Acceptable transducer mounting locations Typical through-hull mount transducer installationsDeep-V hull High speed V-planing hull22 Construction of fairing block Procedure for installing the thru-hull mount transducer23 Transom mount transducer mounting locations Installing the transom mount transducerTransducer preparation 24 Transom mount transducer, mounting flush with hull26 Water temperature/speed sensor ST-02MSB Installation of Optional SensorsThru-hull mount water temperature sensor T-03MSB Transom mount water temperature sensor T-02MTBConnection of Optional Equipment Connecting a Dgps beacon receiver30 Connection of other Dgps beacon receivers Connecting a sensorMJ-A10SPF MJ-A6SRMDMJ-A10SRMD Sensor connection Initial SettingsAutopilot or remote display connection Press the Menu key Press the 0 key Press the 6 key35 Nmea setup menu Press t to select on in the Dgps line Dgps beacon receiver connectionPress the Menu key Press the 0 key Press the 8 key Control Description Operational OverviewTurning On/Off the Power Inserting Chart CardsInsert the chart card label side up, arrow forward Close the cover and fix itPlotter Displays Adjusting Tone and BrillianceSelecting a plotter display Sample plotter displaysData display Plotter/sounder displayGraphic display Highway displaySelecting a sounder display Sounder DisplaysNormal sounder display 50 kHzBottom-lock display Marker zoom displayBottom zoom display Scope displayPress the Menu key to escape Basic Menu OperationPress the Menu key to display the Main menu Principle of Operation Video Sounder OperationManually adjusting the sounder picture How to enable automatic sounder operationAutomatic Sounder Operation Manual Sounder OperationSuppressing Low Level Noise Press the 6 key to display the Video Sounder Setup menuErasing Weak Echoes Selecting Picture Advance SpeedSuppressing Interference Selecting Hue color arrangement Changing Zoom Magnification FactorMeasuring Depth Knowing Depth Change by Audible ChimeSelecting Unit of Depth Measurement Offsetting the Depth ReadoutDisplaying the Water Temperature Graph Press to select Fish on Fish AlarmOffsetting Water Temperature Readout Turning On/Off the Expansion Range Marker Bottom AlarmWater Temperature Alarm Stopping Transmission Receiver Sensitivity gain AdjustmentSelecting Bottom-Lock Expansion Width Zero line Interpreting the DisplayFish school echoes Bottom echo24 Surface noise/aeration Surface noise/aerationWhat is GPS? GPS, Chart OverviewPrinciple of GPS How the GPS receiver calculates positionThis manual Hdop is referred to as DOP Position-fixing accuracy HdopShifting the Cursor Presentation ModeNorth-up Course-upChart Cards Changing Chart Scale/ RangeSelecting Screen Center by Cursor Shifting the DisplayFuruno chart symbols Remarks on chart displayLighthouse and buoy data display Difference between Furuno and Navionics chartsStopping/Restarting Plotting of Track TrackChanging Track Color Erasing All TrackSmoothing Track Changing Track Plotting IntervalPress the ENT key Press the Menu key Press the Menu key Press the 0 key Press the 2 keyEntering Event Marks MarksEntering Marks Changing Mark Attributes Erasing Individual MarksEntering the MOB Mark Cancelling MOB position as destinationErasing All Marks Entering the MOB markRadar Target Mark Model Cable Connection procedure Operation on radarEntering Waypoints WAYPOINTS, RoutesEntering a waypoint at own ships position Enter a comment as followsEntering a waypoint by the cursor Entering waypoints by latitude and longitudeChanging Waypoint Position Erasing Individual WaypointsEntering waypoints by event position or MOB position Erasing waypoints by the cursorEntering Routes Changing Waypoint Mark SizeWaypoint mark size can be selected to large or small Press or to select route numberErasing Routes Editing RoutesSetting Destination Setting DestinationSetting destination by waypoint Setting destination by cursorPress or to select a route Setting destination by event position/ MOB positionSetting a route as destination How a waypoint is skipped Skipping Route Waypoints Cancelling DestinationArrival/Anchor Watch Alarm PLOTTER-RELATED AlarmsTrip Alarm XTE Cross Track Error AlarmSpeed Alarm POSITION-RELATED Operations Offsetting GPS PositionDisplaying Position in LOPs Displaying position in Loran C LOPsDisplaying True or Magnetic Bearings Selecting NavaidMagnetic Variation Press the ENT key followed by the Menu keyPress s to select on Offsetting Chart PositionGPS Operations GPS Setup MenuGPS Setup menu description Speed Averaging Setting up Dgps Beacon Receiver Optional Equipment SetupSensor Setup menu description Selecting SensorsDgps setup menu Customizing the Display Chart AttributesPlotter Display Marker Attributes Waypoint mark size Cursor sizeUnit of Distance Measurement Chart Range or Scale IndicationReplacement of Fuse, Battery Maintenance & TroubleshootingMaintenance Simple troubleshooting Simple TroubleshootingError messages Error MessagesMemory, I/O port test Diagnostic TestsPanel test To escape, press the ESC key three timesGPS monitor display description GPS Monitor DisplayDisplay test Memory Card Operations for technicians Demonstration DisplaySaving data Press s to select YESLoading data Clearing the MemoryDimensions and Weight Power and Environmental ConditionsVideo Sounder GPS ReceiverWorld Time Standards Geodetic Chart List Icons GPS Plotter Navigation calculation Magnetic variation offsetNmea Plotting intervalClutter ResolutionDetecting area Display colorSounding range Returning signalWater temperature sensor Menu Tree On next Page Decca Chains Page Page Page Page Page Index-1 IndexIndex-2 Index-3

GP-1610CF specifications

The Furuno GP-1610CF is a sophisticated marine navigation system designed for enthusiasts who demand accuracy and reliability on the water. Featuring a 10.4-inch color LCD display with a resolution of 640 x 480 pixels, this unit provides crystal-clear images of charts and navigation information, even under direct sunlight. Its user-friendly interface allows for intuitive management of various functions, making it accessible for both novice and experienced mariners.

One of the standout features of the GP-1610CF is its integrated GPS receiver, which boasts a high sensitivity that ensures rapid acquisition of satellite signals and precise positioning. The unit supports a range of positioning formats, including WAAS (Wide Area Augmentation System), allowing for enhanced accuracy within the coastal dimensions. Additionally, the GP-1610CF is compatible with DGPS (Differential GPS) systems, further refining positional accuracy and providing a reliable navigation experience.

The GP-1610CF also supports C-MAP NT+ charting, offering an extensive variety of cartographic data covering numerous regions. This enables users to visualize marine environments with detailed bathymetric information, harbor layouts, and navigational aids. The system's customizable waypoints and route planner facilitate efficient marine navigation, allowing users to create multiple routes and track them in real time.

In terms of connectivity, the GP-1610CF offers NMEA 0183 output, which allows it to interface seamlessly with other marine electronics such as autopilots, radar systems, and depth sounders. This enabling communication between devices enhances overall situational awareness and improves navigation assistance.

The unit is built to withstand the harsh marine environment, featuring a robust housing that is resistant to saltwater, humidity, and temperature variations. Additionally, the GP-1610CF can function in challenging lighting conditions thanks to its adjustable contrast and brightness settings, which help maintain visibility during nighttime operation.

Overall, the Furuno GP-1610CF stands as a reliable choice for sailors seeking a high-performance navigation solution. With its combination of advanced GPS technology, high-resolution display, extensive chart compatibility, and robust design, this device continues to be a trusted companion for marine adventures around the globe. Whether cruising, fishing, or engaging in professional navigation, the GP-1610CF delivers essential features that empower users to navigate with confidence and accuracy.
Top Page Image Contents