Furuno Radar Troubleshooting Manual for Models 821/841

MARINE RADAR

MODEL MODEL 821/841

Image 1

Furuno 821, 841 manual Marine Radar

Contents

Marine Radar First Edition AUG Electrical Shock Hazard Safety ArrangementsGround both the Display Unit and the Antenna Unit Useable Environment Table of Contents Foreword Features Antenna Unit SPECIFICATIONS- ModelTransceiver Module contained in radome Display Unit Protection features Power supply & power consumptionWarm-up time Modulator switching method Vibration Receiver front end MIC Michoeave IC Bandwidth 7 MHz Duplexer Ambiont temperature Interface Nmea Model 821/841 Page Model 821/841 Configuration Principle of Operation How radar works Control Description Operation Turning the Radar On Off Display Indications and Markers Adjusting Control Panel Brilliance Adjusting LCD Backlighting and Display ToneTransmitting Selecting the Range STC MAN Auto Adjusting GAIN, STC, A/C Rain and FTC Adjusting A/C Rain Tuning the ReceiverAdjusting FTC How to tune manually Measuring the Bearing Measuring the Range Target on collision course with your vessel? Menu Operation Menu description 11 Display modes Selecting the Display Mode Window Display Selecting the Presentation ModeCU course-up WPT-UP waypoint-up Guard Alarm Guard Suppressing Radar Interference Off Centering the Display Suppressing Noise InterferenceSelecting Pulselength Navigation Data Display Echo Trails Press the Menu key Select Nav Data and press the ENT key Echo Stretch magnifying long range echoes Selecting Bearing Reference Selecting Unit of Measurement for RangeWatchman Deselecting Ranges Erasing the Heading MarkerDisplaying Navigation Data During Stand-by Outputting Cursor Position to Navigator Visual Alarm IndicationsDisplaying 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 Blind and shadow sectors Nautical Chart and Radar Picture Safety Information Maintenance & TroubleshootingForming any maintenance or Troubleshooting procedure Replacing the Fuse Preventative Maintenance Troubleshooting table Troubleshooting Self Test Self Test Antenna Unit Installation Installation Mounting platform Removing packing materialsVent 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 connector Installation Check List Displaying the Installation Menus Initial Adjustment of Picture Relative Bearing Alignment Entering Initial Settings Sweep Timing Closing the Installation Menus Signal cable connection Page Page Page Page Page Page Page