Furuno 841 MARK-2 specs

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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 hands Use the correct fuse Iii Table of Contents Foreword Features Antenna Unit SpecificationsTransceiver Module contained in radome Display Unit Interface Nmea Accessories FP03-05900 Installation Materials CP03-15xxEquipment List Complete Set Optional Equipment Model 841 MARK-2 Configuration Principle of Operation How radar works Control Description Operation Turning the Radar On and Off Display Indications and Markers5NM 675NM 220.9R 0.646NM 308.7R Adjusting Control Panel Brilliance Adjusting LCD Backlighting and Display ToneTransmitting Selecting the Range STC MAN Auto Adjusting GAIN, STC, A/C Rain and FTCGeneral procedure Adjusting A/C Rain Tuning the ReceiverAdjusting FTC How to tune manually Measuring the Bearing Measuring the Range See the table on the next Menu OperationPress the Menu key to open the menu. The main menu appears Menu Function Menu description 11 Display modes Selecting the Display Mode Window Display Selecting the Presentation ModeCourse-up, you may select CU or WPT- UP, on the menu CU course-up Setting the guard zone Guard AlarmSilencing the audible alarm WPT-UP waypoint-up Suppressing Radar Interference Canceling the guard zone Selecting Pulselength Suppressing Noise InterferenceOff Centering the Display Navigation Data Display Echo Trails Echo 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 off Selecting Bearing Reference Selecting Unit of Measurement for RangeWatchman Turning on watchman Erasing the Heading Marker Canceling watchmanDeselecting Ranges Displaying Navigation Data During Stand-by Error Visual alarm Visual Alarm IndicationsOutputting Cursor Position to Navigator Displaying Cursor Position, Range and Bearing to Cursor Radar Wave and Radar Horizon Interpreting the DisplayTarget Properties and Radar Wave Reflection Super-refraction Range Resolution Bearing ResolutionFalse Echoes Multiple echoes Indirect echoes Side-lobe echoes Nautical Chart and Radar Picture Safety Information Maintenance & Troubleshooting Period Check point Remarks Preventative MaintenanceReplacing the Fuse But Then Troubleshooting Self Test Self Test Mounting Antenna Unit InstallationSiting, handling considerations Parallel with the fore and aft line Holes for antenna unit Mounting considerations Display Unit Installation Display unit is designed to be mounted on a tabletop Mounting procedure Connections Signal cable connection For E/S To connect external equipment to the OP- Tion connectorNavigation aid, video sounder connection Heading Sensor Connection Radar Installation Check List Follow 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