Furuno 821, 841 manual

Contents Marine Radar First Edition AUG Useable Environment Safety ArrangementsElectrical Shock Hazard Ground both the Display Unit and the Antenna UnitTable of Contents Foreword FeaturesDisplay Unit SPECIFICATIONS- ModelAntenna Unit Transceiver Module contained in radomeVibration Power supply & power consumptionProtection features Warm-up time Modulator switching methodReceiver front end MIC Michoeave IC Bandwidth 7 MHz Duplexer Ambiont temperatureInterface Nmea Model 821/841 Page Model 821/841 ConfigurationPrinciple of Operation How radar works Control Description OperationTurning the Radar On Off Display Indications and MarkersSelecting the Range Adjusting LCD Backlighting and Display ToneAdjusting Control Panel Brilliance TransmittingSTC MAN Auto Adjusting GAIN, STC, A/C Rain and FTCHow to tune manually Tuning the ReceiverAdjusting A/C Rain Adjusting FTCMeasuring the Bearing Measuring the RangeTarget on collision course with your vessel? Menu OperationMenu description 11 Display modes Selecting the Display ModeSelecting the Presentation Mode Window DisplayCU course-up WPT-UP waypoint-up Guard AlarmGuard Suppressing Radar InterferenceSuppressing Noise Interference Off Centering the DisplaySelecting Pulselength Navigation Data Display Echo TrailsPress the Menu key Select Nav Data and press the ENT key Echo Stretch magnifying long range echoesSelecting Unit of Measurement for Range Selecting Bearing ReferenceWatchman Erasing the Heading Marker Deselecting RangesDisplaying Navigation Data During Stand-by Visual Alarm Indications Outputting Cursor Position to NavigatorDisplaying Cursor Position, Range and Bearing to Cursor Super-refraction Interpreting the DisplayRadar Wave and Radar Horizon Target Properties and Radar Wave ReflectionBearing Resolution Range ResolutionFalse Echoes Multiple echoes Blind and shadow sectors Nautical Chart and Radar PictureTroubleshooting procedure Maintenance & TroubleshootingSafety Information Forming any maintenance orReplacing the Fuse Preventative MaintenanceTroubleshooting table TroubleshootingSelf Test Self TestAntenna Unit Installation InstallationRemoving packing materials Mounting platformVent tube How to fasten the radome base To the mounting platform Ships bow Removing packing materials 10 Antenna unit Model 841, inside view, shield cover removed 12 Optional mounting bracket installation for sailboat Display Unit Installation 13 How to mount the display unit 14 Display unit, rear view Procedure Option connectorInstallation Check List Displaying the Installation Menus Initial Adjustment of PictureRelative Bearing Alignment Entering Initial SettingsSweep Timing Closing the Installation MenusSignal cable connection Page Page Page Page Page Page Page