Table Of Contents - Furuno 1721 Operator's Manual

Table of Contents

Table Of Contents3
Safety Information7
Features8
Specifications9
Principle Of Operation13
Operational Overview14
The Front Panel14
Description Of Controls15
Display Screen Indications16
Turning The Unit On And Off17
Basic Operation17
Range Selection18
Adjusting The Gain Control19
Adjusting The A/C Sea Control20
The Menu Touchpad21
Tuning The Radar Receiver21
Adjusting Front Panel Backlighting21
Erasing The Heading Mark21
Menu Description22
Measuring Range And Bearing23
Fixed Range Rings23
Cursor/Vrm23
Bearing24
Unit Of Range Measurement24
Cursor24
Ebl24
Reducing Interference26
Precipitation Clutter26
Radar Interference27
Shifting And Zooming The Display28
Guard Alarm29
Setting Guard Zone30
Auto In/Out Alarm31
Plotting32
Plot Brilliance32
Navigation Data33
Better Distinction Of Echoes34
Watchman35
Application36
Factors Affecting Minimum Range36
Sea Return36
Vertical Beamwidth36
Factors Affecting Maximum Range37
Radar Horizon37
Target Properties38
Interpreting The Display39
Land Targets39
Ship Targets40
Echo Size40
False Echoes41
Multiple Echoes41
Side-Lobe Echoes41
Blind And Shadow Sectors42
Indirect Echoes42
Radar Picture And Corresponding Chart43
Position Fixing With Radar44
Collision Avoidance And Relative Motion46
Assessing The Risk47
Maintenance48
Scanner Unit Maintenance48
Radome48
Mounting Base48
Display Unit Care49
Cleaning The Display Screen49
Fuse Replacement49
Troubleshooting50
Checking The Magnetron53
Installation56
General Mounting Considerations56
Scanner Unit Installation57
Mounting58
Unpacking58
Scanner Unit Outline Drawing60
Optional Mounting Bracket Installation For Sailboat61
Wiring And Final Preparation Of Scanner Unit62
Display Unit Installation64
Installation Of Rubber Vibration Isolators65
Power Connection65
Ground Connection66
Gyrocompass (Or Heading Sensor) Connection66
External Navigational Receiver Connection67
Checking The Installation69
Adjustments70
Sweep Timing70
Timing Adjustment71
Relative Bearing Alignment72
Calculating Bearing Error72
Location Of Heading Mark Key72
Display During Heading Adjustment73
Mag Or Gyro Indication74
Range Unit Selection74
Magnetron Heater Voltage75
Measurement Of Blind Shadow Sectors76
List Of Circuit Diagrams And Outline Drawings78
Interconnection Diagram79
Display Unit Diagram80
Scanner Unit Diagram81
Radar Display Unit Diagram82
Radar Scanner Unit Diagram83