Furuno
821, 841
manual
Troubleshooting
Specifications
Install
Guard Alarm
Maintenance
Configuration
Option connector
Adjusting A/C Rain
Entering Initial Settings
Resolution
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Contents
Marine Radar
First Edition AUG
Useable Environment
Safety Arrangements
Electrical Shock Hazard
Ground both the Display Unit and the Antenna Unit
Table of Contents
Foreword
Features
Display Unit
SPECIFICATIONS- Model
Antenna Unit
Transceiver Module contained in radome
Vibration
Power supply & power consumption
Protection features
Warm-up time Modulator switching method
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
Selecting the Range
Adjusting LCD Backlighting and Display Tone
Adjusting Control Panel Brilliance
Transmitting
STC MAN Auto
Adjusting GAIN, STC, A/C Rain and FTC
How to tune manually
Tuning the Receiver
Adjusting A/C Rain
Adjusting FTC
Measuring the Bearing
Measuring the Range
Target on collision course with your vessel?
Menu Operation
Menu description
11 Display modes
Selecting the Display Mode
CU course-up
Selecting the Presentation Mode
Window Display
WPT-UP waypoint-up
Guard Alarm
Guard
Suppressing Radar Interference
Selecting Pulselength
Suppressing Noise Interference
Off Centering the Display
Navigation Data Display
Echo Trails
Press the Menu key Select Nav Data and press the ENT key
Echo Stretch magnifying long range echoes
Watchman
Selecting Unit of Measurement for Range
Selecting Bearing Reference
Displaying Navigation Data During Stand-by
Erasing the Heading Marker
Deselecting Ranges
Displaying Cursor Position, Range and Bearing to Cursor
Visual Alarm Indications
Outputting Cursor Position to Navigator
Super-refraction
Interpreting the Display
Radar Wave and Radar Horizon
Target Properties and Radar Wave Reflection
False Echoes
Bearing Resolution
Range Resolution
Multiple echoes
Blind and shadow sectors
Nautical Chart and Radar Picture
Troubleshooting procedure
Maintenance & Troubleshooting
Safety Information
Forming any maintenance or
Replacing the Fuse
Preventative Maintenance
Troubleshooting table
Troubleshooting
Self Test
Self Test
Antenna Unit Installation
Installation
Vent tube
Removing packing materials
Mounting platform
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
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