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