Gain adjustment soft keys, Gain sensitivity window

2. RADAR OPERATION

1.Press the [GAIN] key to show the “gain adjustment” soft keys. The last-used adjustment window appears. The example below shows the gain sensitivity adjustment window.

.250/	.125nm	319.9	° M
SP
H-UP

§GAIN SENSITIVITY

AUTO ROUGH

AUTO MODERATE

°AUTO CALM

MAN 0

GAIN
ADJUST
GAIN	Item selected for
	adjustment is
A/C	highlighted.
SEA
A/C
RAIN

A/C AT

ON /OFF

RETURN

+359.9° R 0.277nm

Gain adjustment soft keys

2.If the gain sensitivity window is not is not displayed, press the GAIN soft key to show it.

§GAIN SENSITIVITY

AUTO ROUGH

AUTO MODERATE

°AUTO CALM

MAN 0

Gain sensitivity window

3.Use the trackball to select AUTO ROUGH, AUTO MODERATE, AUTO CALM, or MAN (manual) as appropriate. Select an AUTO option according to the sea state.

4.For manual adjustment, rotate the [ENTER] knob to adjust, observing the radar echo. The range of adjustment is 0-100.

5.Press the [GAIN] key on the front panel or the RETURN soft key to finish.

2-3

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Image 37

Furuno 1933, 1943, 1833 manual Gain adjustment soft keys, Gain sensitivity window

Contents

Marine Radar 00080918601 Do not open the equipment Furuno agent or dealer about replacementDo not disassemble or modify the equipment Keep heater away from equipment Table of Contents 11.6 Iii Plotter Operation Video Sounder Operation Customizing Your Unit Vii MAINTENANCE, Troubleshooting Viii Word to the Owner of the Model 1833/1933/1943 Marine Radar Features NavNet system NavNet system Two-unit NavNet system Two-unit NavNet systemThree-or-more-unit NavNet system Xii What is WAAS? Operational Overview Display unit controls Operating ControlsOverview of display unit controls Control panel Display unit Soft keysRadar display Enter knob Enter knob Alphabet, symbol, numericNumerics Trackball Remote controller Remote controller Chart card and card remover Inserting a Chart CardDisplay unit Startup sequence Turning the Unit On/Off Display brilliance, panel brilliance Brilliance adjustment soft keysDisplay brilliance and panel brilliance windows Brilliance boost Economy mode Display modes Selecting a DisplayDisplay screens Screen type and available display screen Display screen selection window Selecting a displayRadar combination screen selection window Switching control in combination screens Select source menu Selecting image sourceRadar source and sounder source windows Cursor, cursor data Trackball, Cursor MOB concept Entering the MOB Mark, Setting MOB as DestinationMOB mark messages Showing, hiding data boxes with soft key Data BoxesRearranging data boxes Temporarily erasing a data box Executing a function Function KeysFunction keys Simulation Display Simulation setup menuRadar NavNet display unit-generated echoes Plotter NavNet radar antenna-generated echoes Sounder Radar Display Radar Operation Adjusting the Gain TuningTuning window Transmitting, Stand-by Gain sensitivity window Gain adjustment soft keys SEA setting window Adjusting the A/C SEAReducing Sea Clutter How the A/C SEA works Rain setting window Adjusting the A/C RainReducing Precipitation Clutter Range scales nm, sm Range ScaleRange scales km Pulselength Signal process soft keys Selecting a presentation mode Presentation ModeRadar display soft keys Course-up presentation mode Head-up presentation modeDescription of presentation modes Head-up H-UP True motion presentation mode North-up presentation modeNorth-up N-UP True motion TR-M Measuring range by range rings Measuring the Range Measuring range by cursor How to measure range to a target with the cursor Measuring range by VRM How to measure range with the VRMEBL/VRM soft keys Erasing EBL/VRM data boxes Erasing a VRM, VRM indicationHiding EBL/VRM data boxes Moving EBL/VRM data boxes Measuring the Bearing How to measure bearing with the EBLMeasuring bearing by cursor Measuring bearing by EBL Erasing an EBL, EBL indication Erasing the Heading Line, North Marker Reducing Noise Interference Radar interference Rejecting Radar Interference Zooming in on radar targets ZoomZooming in on ARP, TTM targets Zoom Manual shift Shifting the PictureTarget no. selection window Shifting the picture manually Auto ship speed setting window Setting automatic shift maximum speedAutomatic shift Automatic shift Predicting collision course Using the Offset EBLPredicting collision course with the offset EBL Measuring range and bearing between two targets Measuring range & bearing between two targets Trail time Echo TrailsSample echo trails Trail soft keys Trail gradation Starting echo trailsMultitone and monotone trails Trail mode window Echo trail mode Types of echo stretch Echo Stretch Effect of echo averaging Echo Averaging Target soft keys Outputting TLL Data Setting a guard alarm zone Guard AlarmHow to set a guard alarm zone Cancelling the guard alarm When the alarm is violated… Watchman Setting watchman stand-by intervalHow watchman works Turning on/off watchman Second-trace echoes Suppressing Second-trace Echoes Waypoint marker Waypoint Marker Display accuracy is affected by the following 26 ARP, TTM Operation Activating/deactivating ARP, TTM ARP setup menuARP target info window Acquiring and tracking targets ARP ARP plot symbolsManual acquisition Automatic acquisition Automatic acquisition area Displaying target number ARP, TTMARP target number Terminating tracking of ARP targets Cancel all targets windowTerminating tracking of selected targets Terminating tracking of all targets What is a vector? Setting vector attributes ARPVector reference, vector time Past position displays Displaying past position ARPPlot interval window ARP target data 26.7 ARP, TTM target data CPA window 26.8 CPA/TCPA alarm ARP Canceling a lost target Lost target alarm ARPTcpa window Lost target mark General Interpreting the Radar DisplayMinimum and maximum ranges Bearing resolution Radar resolutionRange resolution Bearing accuracy Multiple echoes False echoesMultiple echoes Sidelobe echoes Virtual image Virtual imageShadow sectors Shadow sectors Sart Search and Rescue Transponder Appearance of Sart signal on the radar display General remarks on receiving Sart General procedure for detecting Sart response Racon Radar Beacon Appearance of racon signal on the radar displaySEA control Rain control This page is intentionally left blank Full-screen plotter display Plotter DisplaysFull-screen plotter display Nav data window Contents of nav data window001WPT Compass display Compass display Setting the range for the XTE monitor Reading the XTE cross-track error monitorXTE range setting window Soft keys Highway display Highway display Nav data displays Nav data display North-up Plotter display, north-up mode Auto course-up Course-upPlotter display, course-up mode, destination set Auto course-up display Charts scales Chart ScaleShifting the Display Chart card overview Chart CardsIndices and chart enlargement Chart icons and their meanings When a chart cannot be displayed Furuno and NavCharts chartsChart symbols Chart symbols Lighthouse mark Data for aids to navigationExample of buoy, lighthouse data Plotter display, showing port service display Port service icons NavCharts only Cursor and data display MAP chartsObjects window Example of caution area window Lighthouse icon Icon dataObject windows Tide information Sample lighthouse dataObjects window Date window Tide window Displaying track Working with TrackOwn ship track Track control menu Target track Stopping, restarting plotting of own ship track Track plotting method Track plotting method and interval for own ship trackInterval window Track plotting interval Track memory window Changing own ship track/mark distribution setting Erasing own ship track by area Erasing trackErase menu Erasing all target tracks Erasing all own ship track Entering a mark, line Marks, LinesChanging mark attributes Mark shapes Marks shape window Selecting line type Lines style window Erasing marks, linesErasing an individual mark Erasing an individual line Erasing all marks, lines Entering waypoints WaypointsEntering a waypoint at own ship position Entering a waypoint with the cursor Waypoint ark shape selection window Select Mark Entering a waypoint by range and bearing Entering a waypoint from the waypoint list Editing waypoint dataAlphanumeric and local waypoint lists Editing waypoint data from the waypoint list Plotter display Editing a waypoint from the plotter display Erasing a waypoint directly from the plotter display Erasing waypointsErasing a waypoint from the menu Erasing a waypoint from the waypoint list Chart details menu Changing waypoint mark size FURUNO, NavCharts Alphanumeric list Searching waypoints Creating routes RoutesEntering a route with existing waypoints Route menu Entering a route with the cursor Save route menu Creating voyage-based routesSave route window For manual entry of waypoints, do the following Displays for entry of time, distance intervalTo stop recording waypoints and save the route Connect route window Connecting routes Inserting a waypoint from the route list Inserting a waypoint in a routeEdit route menu Waypoint list for editing a route local list Inserting a waypoint in an intermediate location on a route Inserting a waypoint from the plotter display Erasing routes Removing waypoints from a routeRemoving a waypoint from the route list Removing a waypoint from the plotter display Navigating to a quick point NavigationSelecting quick point entry method Go to method window Navigating to multiple quick points Navigating to waypointsSelecting a waypoint from the plotter display Selecting a waypoint from the waypoint list Port services and sample port list Navigating to ports, port services NavCharts only Sample filling station locations southern Italy Selecting the route to follow Following a routePlotter display, route selected as destination Navigating waypoints in reverse order Restarting navigation Example of when to restart navigationLog display Switching waypoints Setting speed for ETA calculationAutomatic waypoint switching methods Select speed for ETA window Cancelling route navigation Audio alarm on/off AlarmsPlotter alarm menu Audio alarm window How the arrival alarm works Arrival alarmArrival alarm window How the anchor watch alarm works Anchor watch alarmAnchor watch alarm window Speed alarm XTE Cross-Track Error alarmHow the XTE alarm works XTE alarm window Proximity alarm window Proximity alarmProximity mark Trip alarm window Trip alarm Plotter alarm menu, Alarm information Plotter alarm messages and their meanings Alarm messages General setup menu, Resetting Trip Distance Underwater conditions and video sounder display Principle of Operation Sounder Displays Display mode windowSelecting a sounder display Description of sounder displays 114Single-frequency display Dual-frequency display KHz picture Dual-frequency displaySounding area and transmission frequency Marker-zoom display Bottom-zoom display Marker-zoom display plus normal sounder displayBottom-zoom display plus normal sounder display Bottom-lock display plus normal sounder display Bottom-lock displayBottom discrimination display Bottom discrimination display Scope display display only Selecting screen split method in combination displaysScope display Automatic Sounder Operation How to enable automatic sounder operationHow the automatic sounder works Types of automatic sounder modes Adjusting the gain Selecting the manual modeManual Sounder Operation Selecting display range Gain window Shifting the rangeShift concept Measuring Depth, Time How to measure depth and time Types of interference Reducing InterferenceNoise limiter window Appearance of clutter Reducing Low Level NoiseClutter window Erasing Weak Echoes Signal level windowAppearance of weak echoes Advancement independent of ship’s speed Picture Advance SpeedPicture advance window Advancement synchronized with ship’s speed How the speed-dependent picture advance mode works Sounder alarm menu Fish alarm Bottom alarmBottom alarm window Fish alarm window Fish alarm B/L window Fish alarm B/L Water temperature alarm window Water temperature alarm Depth Alarm When an alarm setting is violated Sounder alarm messages and their meanings Water Temperature Graph Zero line Interpreting the Sounder DisplayBottom echo Zero line Surface noise/Aeration Fish school echoesFish school echoes Surface noise/aeration General setup menu General Setup Con’t on next Contents of general setup menu Radar display setup Radar SetupContents of general setup menu con’t from previous Radar display setup menu Contents of radar display setup menu Radar range setup menu Radar range setup Radar function key Function key setupRadar function key options Menu Item Function Function Key Radar function keys Plotter setup menu Contents of plotter setup menu Plotter SetupNavigation options Function Default Function Key Key Label Function key setupPlotter function key menu Plotter function key options RUL Plotter function keys Chart offset Chart SetupPlotter display, chart offset selected FURUNO, NavCharts chart attributes Contour line menu FURUNO, NavCharts MAP chart attributesChart details menu C-MAP Cntour Line soft key Contents of chart details menu C-MAP Depth info menu C-MAP Depth Info soft key Data box menu Data Boxes Setup Hot page setup screen, Hot Page Setup HOT Contents of nav setup menu Navigator SetupNavigation data source GPS setup menu Contents of GPS setup menu GPS receiver setup Contents of GPS setup menu con’t from previous Contents of GPS sensor settings menu con’t from previous Contents of Waas Setup menu Waas Setup TD setup menu TD display setupDisplaying Loran C TDs Loran GRI & station pair window Decca chain and station pair window Displaying Decca TDs Nav data setup screen Nav Data Display SetupNav data setup window System setup Sounder SetupOn next TVG Sounder system setup menu description con’t from previous Sensor setup menu Sensor setupSensor setup menu settings Default basic ranges Sounder range setup menuSounding range, zoom range, bottom lock range Zoom range and bottom-lock ranges Sounder function key options Sounder function key menu Sounder function keys Formatting memory cards Memory Card OperationsSave data menu Saving data to a memory card Memory card messages Memory card messages Load data menu Playing back data from a memory card Uploading, Downloading Data Setting communication software on the PCUploading or downloading data Upload and download menus Waypoint data format Baud rate windowWaypoint data format Characters available for comment Route comment data format Route data menuEnd of sentence Loading Waypoint Data from Yeoman Receive data menu Receiving Data Via Network EquipmentHost name window Marks & lines window Select sentence menu Outputting Data Through the Network Replacement of Battery Preventive MaintenanceMaintenance program Trackball Maintenance Replacement of Fuse General troubleshooting Simple TroubleshootingRadar troubleshooting Radar Plotter Plotter troubleshooting Sounder Sounder troubleshooting Memory I/O test Diagnostics Display unit test results Display unit testGPS sensor test Requires GPS Receiver GP-310B/320B GPS receiver test results Network sounder test results Network sounder test Requires Network Sounder ETR-6/10NARP test results Test patterns Test pattern Screen for testing keyboard, remote controller Keyboard, remote controller test GPS status display GPS Status Display Memory clear menu Clearing MemoriesWindows for clearing memory Error messages Error Messages This page is intentionally left blank Menu key Menu Overview Appendix LAT/LON Format DD MM. MM’ DD MM. MMM’ DD MM. MMMM’ 4800 Plotter Chart Border Line ON, OFF Speed 010.0 kt 0-999.9 kt Temperature Graph ON, OFF Radar Alarms Alarm keyPlotter Alarms Sounder Alarms Geodetic Chart List World Time Chart V E Icons Model 1833/1933/1943 Specifications of Marine Radar E3502S01D Plotter Function Coating Color Index-1 Index Index Index-2 Messages Index-3 Index-4 Presentation mode Waypoints Index-5

319.9

Gain adjustment soft keys

Gain sensitivity window