Furuno 841, 821 specs

Image 58

Furuno 841, 821 manual

Contents

Marine Radar First Edition AUG Ground both the Display Unit and the Antenna Unit Safety ArrangementsElectrical Shock Hazard Useable Environment Table of Contents Features Foreword Transceiver Module contained in radome SPECIFICATIONS- ModelAntenna Unit Display Unit Warm-up time Modulator switching method Power supply & power consumptionProtection features Vibration Ambiont temperature Receiver front end MIC Michoeave IC Bandwidth 7 MHz Duplexer Interface Nmea Model 821/841 Page Configuration Model 821/841 Principle of Operation How radar works Operation Control Description Display Indications and Markers Turning the Radar On Off Transmitting Adjusting LCD Backlighting and Display ToneAdjusting Control Panel Brilliance Selecting the Range Adjusting GAIN, STC, A/C Rain and FTC STC MAN Auto Adjusting FTC Tuning the ReceiverAdjusting A/C Rain How to tune manually Measuring the Range Measuring the Bearing Menu Operation Target on collision course with your vessel? Menu description Selecting the Display Mode 11 Display modes Window Display Selecting the Presentation ModeCU course-up Guard Alarm WPT-UP waypoint-up Suppressing Radar Interference Guard Off Centering the Display Suppressing Noise InterferenceSelecting Pulselength Echo Trails Navigation Data Display Echo Stretch magnifying long range echoes Press the Menu key Select Nav Data and press the ENT key 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 Target Properties and Radar Wave Reflection Interpreting the DisplayRadar Wave and Radar Horizon Super-refraction Range Resolution Bearing ResolutionFalse Echoes Multiple echoes Nautical Chart and Radar Picture Blind and shadow sectors Forming any maintenance or Maintenance & TroubleshootingSafety Information Troubleshooting procedure Preventative Maintenance Replacing the Fuse Troubleshooting Troubleshooting table Self Test Self Test Installation Antenna Unit 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 Option connector Procedure Installation Check List Initial Adjustment of Picture Displaying the Installation Menus Entering Initial Settings Relative Bearing Alignment Closing the Installation Menus Sweep Timing Signal cable connection Page Page Page Page Page Page Page