Furuno 841 MARK-2 manual

Contents Marine Radar B . N o . O M E 3 4 4 4 Safety Instructions Stay away from transmitting antenna Do not open the equipmentDo not disassemble or modify the equipment Do not operate the equipment with wet handsUse the correct fuse IiiTable of Contents Foreword FeaturesAntenna Unit SpecificationsTransceiver Module contained in radome Display UnitInterface Nmea Accessories FP03-05900 Installation Materials CP03-15xxEquipment List Complete SetOptional Equipment Model 841 MARK-2 ConfigurationPrinciple of Operation How radar works Control Description OperationTurning the Radar On and Off Display Indications and Markers5NM 675NM 220.9R 0.646NM 308.7RAdjusting Control Panel Brilliance Adjusting LCD Backlighting and Display ToneTransmitting Selecting the RangeSTC MAN Auto Adjusting GAIN, STC, A/C Rain and FTCGeneral procedure Adjusting A/C Rain Tuning the ReceiverAdjusting FTC How to tune manuallyMeasuring the Bearing Measuring the RangeSee the table on the next Menu OperationPress the Menu key to open the menu. The main menu appears Menu Function Menu description11 Display modes Selecting the Display ModeWindow Display Selecting the Presentation ModeCourse-up, you may select CU or WPT- UP, on the menu CU course-upSetting the guard zone Guard AlarmSilencing the audible alarm WPT-UP waypoint-upSuppressing Radar Interference Canceling the guard zoneSelecting Pulselength Suppressing Noise InterferenceOff Centering the Display Navigation Data Display Echo TrailsEcho Stretch magnifying long range echoes Setting up the nav data displayPress the Menu key Select Nav Data and press the ENT key Turning echo stretch on or offSelecting Bearing Reference Selecting Unit of Measurement for RangeWatchman Turning on watchmanErasing the Heading Marker Canceling watchmanDeselecting Ranges Displaying Navigation Data During Stand-byError Visual alarm Visual Alarm IndicationsOutputting Cursor Position to Navigator Displaying Cursor Position, Range and Bearing to CursorRadar Wave and Radar Horizon Interpreting the DisplayTarget Properties and Radar Wave Reflection Super-refractionRange Resolution Bearing ResolutionFalse Echoes Multiple echoesIndirect echoes Side-lobe echoesNautical Chart and Radar Picture Safety Information Maintenance & TroubleshootingPeriod Check point Remarks Preventative MaintenanceReplacing the Fuse But Then TroubleshootingSelf Test Self TestMounting Antenna Unit InstallationSiting, handling considerations Parallel with the fore and aft line Holes for antenna unitMounting considerations Display Unit InstallationDisplay unit is designed to be mounted on a tabletop Mounting procedureConnections Signal cable connectionFor E/S To connect external equipment to the OP- Tion connectorNavigation aid, video sounder connection Heading Sensor ConnectionRadar Installation Check ListFollow the procedure below to obtain proper radar picture Initial Adjustment of PictureDisplaying the Installation Menus Sweep Timing Entering Initial SettingsRelative Bearing Alignment Press the Menu key and turn off the power Closing the Installation MenusPage Page Page Page Page Page