Furuno 841 MARK-2 manual

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Contents

Marine Radar B . N o . O M E 3 4 4 4 Safety Instructions Do not operate the equipment with wet hands Do not open the equipmentStay away from transmitting antenna Do not disassemble or modify the equipment Use the correct fuse Iii Table of Contents Foreword Features Display Unit SpecificationsAntenna Unit Transceiver Module contained in radome Interface Nmea Complete Set Installation Materials CP03-15xxAccessories FP03-05900 Equipment List Optional Equipment Model 841 MARK-2 Configuration Principle of Operation How radar works Control Description Operation 675NM 220.9R 0.646NM 308.7R Display Indications and MarkersTurning the Radar On and Off 5NM Selecting the Range Adjusting LCD Backlighting and Display ToneAdjusting Control Panel Brilliance Transmitting General procedure Adjusting GAIN, STC, A/C Rain and FTCSTC MAN Auto How to tune manually Tuning the ReceiverAdjusting A/C Rain Adjusting FTC Measuring the Bearing Measuring the Range Press the Menu key to open the menu. The main menu appears Menu OperationSee the table on the next Menu Function Menu description 11 Display modes Selecting the Display Mode CU course-up Selecting the Presentation ModeWindow Display Course-up, you may select CU or WPT- UP, on the menu WPT-UP waypoint-up Guard AlarmSetting the guard zone Silencing the audible alarm Suppressing Radar Interference Canceling the guard zone Off Centering the Display Suppressing Noise InterferenceSelecting Pulselength Navigation Data Display Echo Trails Turning echo stretch on or off Setting up the nav data displayEcho Stretch magnifying long range echoes Press the Menu key Select Nav Data and press the ENT key Turning on watchman Selecting Unit of Measurement for RangeSelecting Bearing Reference Watchman Displaying Navigation Data During Stand-by Canceling watchmanErasing the Heading Marker Deselecting Ranges Displaying Cursor Position, Range and Bearing to Cursor Visual Alarm IndicationsError Visual alarm Outputting Cursor Position to Navigator Super-refraction Interpreting the DisplayRadar Wave and Radar Horizon Target Properties and Radar Wave Reflection Multiple echoes Bearing ResolutionRange Resolution False Echoes Indirect echoes Side-lobe echoes Nautical Chart and Radar Picture Safety Information Maintenance & Troubleshooting Replacing the Fuse Preventative MaintenancePeriod Check point Remarks But Then Troubleshooting Self Test Self Test Siting, handling considerations Antenna Unit InstallationMounting 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 Heading Sensor Connection To connect external equipment to the OP- Tion connectorFor E/S Navigation aid, video sounder connection Radar Installation Check List Displaying the Installation Menus Initial Adjustment of PictureFollow the procedure below to obtain proper radar picture Relative Bearing Alignment Entering Initial SettingsSweep Timing Press the Menu key and turn off the power Closing the Installation MenusPage Page Page Page Page Page