Navman 8084, 8120 Operation Manual

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Navman

8120/8084

Installation and Operation Manual

www.navman.com

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IMPORTANT SAFETY INFORMATION

Please read carefully before installation and use.

This is the safety alert symbol. It is used to alert you to

DANGER

WAR NI NG

CAUTION

potential personal injury hazards, Obey all safety messages that follow this symbol to avoid possible injury or death.

WARNING indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury

CAUTION indicates a potentially hazardous situation which, if not avoided, could result in minor or moderate injury.

CAUTION used without the safety alert symbol indicates a potentially hazardous situation which, if not avoided, may result in property damage.

As NAVMAN is continuously improving this product we retain the right to make changes to the product at any time which may not be reflected in this version of manual. Please contact your nearest NAVMAN office if you require any further assistance.

Governing Language: This statement, any instruction manuals, user guides and other information relating to the product (Documentation) may be translated to, or have been translated from, another language (Translation). In the event of conflict between any Translation of the Documentation, the English language version of the Documentation will be the official version.

The 8120/8084 is set up with default units of feet, F (Fahrenheit), US gallons and knots. To change the units, see section 17-9.

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Contents

1 Introdu ction ............................................................................................................................................................................. 7

1-1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

1-2 Cleaning and maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

1-3 Plug-in cards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

1-4 Removing and replacing the display unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

2 Basic Op eration ........................................................................................................................................................................ 11

2-1 Using the keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

2-2 Turning on and off / auto power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

2-3 Backlight and night mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

2-4 Man overboard (MOB) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

2-5 Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

2-6 Simulate mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

2-7 The main windows . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

3 Navigati on: Chart ..................................................................................................................................................................... 21

3-1 Introduction to navigating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

3-2 Chart window . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23

3-3 Distance and bearing calculator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

3-4 Projected course . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

3-5 Tracks and tracking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

4 Video wi ndow .......................................................................................................................................................................... 27

5 Navigation: Highway wind ow ..................................................................................................................................................28

6 Navigati on: Waypoints ............................................................................................................................................................. 28

6-1 Waypoints window . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29

6-2 Managing waypoints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

7 Navigati on: Routes .................................................................................................................................................................. 31

7-1 Routes window . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

7-2 Managing routes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

8 Satelli tes ................................................................................................................................................................................. 34

8-1 Satellite window . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

9 Sonar f ishfinding : Introductio n ............................................................................................................................................... 35

9-1 Using the Instrument . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

9-2 Interpreting the display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

9-3 Single and Dual frequency fishfinding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

9-4 Fish detection and display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

9-5 Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

9-6 Gain and threshold . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

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10 Sonar fis hfinding: Wi ndows ...................................................................................................................................................4 4

10-1 Sonar history window - no split . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

10-2 Sonar Zoom and Full Screen Zoom displays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45

10-3 Sonar Bottom window . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

10-4 Sonar 50/200 window . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

10-5 Sonar A-Scope window . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

11 Gauges window ......................................................................................................................................................................4 8

12 Data window ..........................................................................................................................................................................48

13 Fuel functi ons and display ...................................................................................................................................................... 49

13-1 What the fuel computer does . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

13-2 Fuel display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

13-3 When you add or remove fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

13-4 Low fuel alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .51

13-5 Boat speed sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

13-6 Fuel consumption curves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

13-7 Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .55

14 Tides window ......................................................................................................................................................................... 56

15 User card win dow ................................................................................................................................................................... 57

16 AIS ......................................................................................................................................................................................... 59

16-1 Viewing AIS Vessels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

16-2 Dangerous Vessels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .60

16-3 AIS Windows . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .60

17 DSC/Buddy t rack windows ...................................................................................................................................................... 62

17-1 The windows . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .62

17-2 Using the windows . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .63

18 Radar .................................................................................................................................................................................... 64

18-1 Radar window . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64

18-2 Radar modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65

18-3 Enabling the radar functionality . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .65

18-4 Selecting standby mode or transmit mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65

18-5 Disabling the radar functionality . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65

18-6 Adjusting the quality of the radar window . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65

18-7 Changing the echo expansion setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .67

18-8 Turning the target trails on or off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .68

18-9 Using the VRM/EBL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .68

18-10 Changing the PPI position . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70

18-11 Using the radar guard zones . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70

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19 Setting up t he 8120/8084 ....................................................................................................................................................... 72

19-1 Setup > System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .73

19-2 Setup > Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74

19-3 Setup > Sonar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77

19-4 Setup > Radar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78

19-5 Setup > GPS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81

19-6 Setup > Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82

19-7 Setup > Track . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83

19-8 Setup > AIS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84

19-9 Setup > Logs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85

19-10 Setup > Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86

19-11 Setup > Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .87

19-12 Setup > Comms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .87

19-13 Setup > Calibrate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88

19-14 Setup > Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .89

19-15 Setup > Favorites . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90

19-16 Setup > Simulate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .90

20 Install ation ........................................................................................................................................................................... 91

20-1 Installation: What else comes with my 8120/8084? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92

20-2 Installation: Options and Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .93

20-3 Installation: The display unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94

20-4 Installation: Power/data cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .96

20-5 Installation: GPS antenna . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97

20-6 Installation: Sonar transducer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98

20-7 Installation: NAVMAN petrol/gasoline sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .98

20-8 Installation: NAVMAN diesel sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98

20-9 Installation: SmartCraft . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .99

20-10 Installation: Radar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .99

20-11 Installation: Other NavBus instruments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .100

20-12 Installation: Other NMEA instruments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .101

20-13 Installation: Setup and test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .101

Append ix A - Specifica tions ....................................................................................................................................................... 102

Append ix B - Troubl eshooting ................................................................................................................................................... 105

B-1 General problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .105

B-2 GPS navigation problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .106

B-3 Fuel consumption problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .106

B-4 Sonar fishfinding problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .107

B-5 Radar problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .109

Append ix C Glossary an d navigation data ................................................................................................................................. 110

Append ix D Compliance sta tements ...........................................................................................................................................113

NAVMAN 8120/8084 Installation and Operation Manual 5

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Warning

It is your sole responsibility to install and use the instrument and transducer(s) in a manner that will not cause accidents, personal injury or property damage. Always observe safe boating practices.

The choice, location, and installation of transducers and other components of the system are critical to the performance of the system as intended. If in doubt, consult your NAVMAN dealer.

To reduce the risk of misusing or misinterpreting this instrument, you must read and understand all aspects of this Installation and Operation Manual. We also recommend that you practice all operations using the built-in simulator before using this instrument at sea.

Global Positioning System: The Global Positioning System (GPS) is operated by the US Government which is solely responsible for its operation, accuracy and maintenance. The GPS is subject to changes which could affect the accuracy and performance of all GPS equipment anywhere in the world, including this instrument.

Electronic Chart: The electronic chart used by this instrument is an aid to navigation designed to supplement, not replace, official government charts. Only official government charts supplemented by notices to mariners contain the information required for safe and prudent navigation. Always supplement the electronic information provided by this instrument with other plotting sources such as observations, depth soundings, radar and hand compass bearings. Should the information not agree, the discrepancy must be resolved before proceeding any further.

AIS: The AIS features on this chart-plotter are designed as a safety aid only and do not guarantee safety at sea. AIS transmission is mandatory on some, but not all, vessels. You should check your local laws and regulations for requirements in your area. As a result of different legal requirements, different vessel sizes and uses, you should not assume that your AIS equipped chart-plotter will show the location of ALL vessels in your area. Careful prudence, judgement, and safe navigation practices should always be exercised. AIS should be used to complement radar, but AIS is not a substitute for radar.

Sonar performance: The accuracy of the sonar depth display can be affected by many factors, including the type and location of the transducer and water conditions. Never use this instrument to gauge depth or other conditions for swimming or diving.

Fuel data: Do not rely on this instrument as the sole source of information about fuel available onboard. You must supplement this instrument’s fuel data with visual or other checks of the fuel available. This is necessary because possible operator errors, such as forgetting to reset the fuel used when filling the tank or running the engine with this instrument not switched on, can render this instrument inaccurate. Fuel economy can change drastically depending on boat loading and sea conditions. Always carry adequate fuel onboard for the intended trip, plus a reserve to allow for unforeseen circumstances.

Simulate mode: Never have simulate mode on when you are navigating on the water. Failure to adhere to these warnings may lead to death, serious injury or property

damage. NAVMAN disclaims all liability for installation or use of this product that causes or contributes to death, injury or property damage or that violates any law.

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1 Introduction

Quick reference to the built-in and optional features:

Feature Type See Requires General How to use the keys and windows 2

Troubleshooting Appendix B Simulate mode 2-6 Glossary of special names Appendix C Specifications Appendix A

MOB Man overboard key 2-4 Navigation Overview of how to navigate 3-1 GPS fix

Finding the boat’s position on the chart 3-2 Navigate to any point or to a waypoint 3-1 Navigate along a route 3-1 Projected course: An estimate of progress 3-4 Tracks: records of where the boat has been 3-5 GPS receiver status 8-1 Saving and loading data with a user card 15 User card

Chart data Chart features (built in world chart) 3-2

Chart details 3-2-4 & 5 Chart card Tides at a port 14 Chart card AIS 16

Alarms Built in alarms 2-5 Boat data Data at top of main displays 2-7-3

Compass at top of main displays 2-7-4 Dedicated data display 12

Fuel Fuel computer, Instrument petrol/gasoline engine 13 Fuel sensors

Fuel computer, Instrument diesel engine 13 Diesel sensors Fuel computer, SmartCraft engines 13 SmartCraft What to do when you add or remove fuel 13-1

Sounder Overview of the depth sounder 9 Sounder

Depth, bottom features, water features 9 Sounder Fishfinder 9 Sounder

Other boats Track your buddy, polling other boats 17 DSC VHF

Distress calls 17 DSC VHF

(Continued next page)

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Radar Overview of the radar 18 Radar

The radar window explained 18-1 Radar Change the radar operation mode 18-2 Radar Change the radar rotation or motion mode 18-6, 18-7 Radar Optimize the quality of the radar window 18-9 Radar Find range and bearing with VRM/EBL 18-10 Radar Set up the radar guard zones 18-12 Radar

1-1 Overview

The NAVMAN 8120/8084 is a rugged, highly integrated marine chartplotter and fishfinder. It is easy to use and has a high resolution color display. Complex functions can be performed with only a few key presses, taking the hard work out of boating.

The available functions depend on the optional sensors and instruments that are installed:

The Video window requires the 8120/8084

to receive video from a compatible source, such as a camera.

Fuel functions require one or more

petrol/gasoline or diesel fuel sensors to be installed.

SmartCraft engine functions require a

SmartCraft system to be installed. For information on using SmartCraft, see the SmartCraft Gateway Installation and Operation Manual.

1-2 Cleaning and maintenance

The Instrument screen is covered by a proprietary anti-reflection coating. To avoid damage, clean the screen only with a damp cloth and mild detergent when dirty or covered in sea salt. Avoid abrasive cleaners, petrol or other solvents. If a plug-in card gets dirty or wet, clean it with a damp cloth or mild detergent.

Cover or remove a transom-mounted transducer when repainting the hull. If painting over a through hull transducer with

• DSC/Buddy track functions require an appropriate NAVMAN DSC VHF radio to be installed.

The 8120/8084 can send data to other

instruments, such as an autopilot, and receive data from other instruments.

• Radar functions require an optional NAVMAN radar system to be installed. Three radar systems are available; 2 kW, 4 kW, or 6 kW.

• AIS functions require an optional AIS receiver to be installed.

For information on installation options, see section 20.

This manual describes how to install and operate the 8120/8084. Special terms are explained in Appendix C. For more information on this instrument and other NAVMAN products, go to our website, www.navman.com.

antifouling paint, use only one coat of paint. Remove the previous coat of antifouling paint by sanding it lightly.

To optimize performance, avoid walking on or jamming cables and connectors. Keep the transducer free of weed, paint and debris. Do not use a high pressure water blast on a speed sensor paddlewheel as it may damage the bearings.

Push the dust cover over the display when the Instrument is turned off.

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1-3 Plug-in cards

The 8120/8084 can use two kinds of C-MAP™ SD-Card plug-in cards:

1. Chart cards have chart details required for navigating in a particular region. When you insert a chart card, the extra details automatically appear on the Chart window. You can plug in up to two chart cards at once. If the chart shows a region not covered by a chart card, then it displays a simplified built-in world chart.

2. User cards store navigation data. A user card allows navigation data to be transferred to another compatible instrument (see section 15).

Removing a plug-in card

CAUTION

Handle plug-in cards carefully. Keep them in their protective cases when not plugged into the 8120/8084.

Keep the 8120/8084 card cover closed at all times to prevent moisture from entering the card compartment.

1 2

Turn the 8120/8084 oﬀ (see section 2-2). Open the card cover on the right of the display.

Inserting a plug-in card

Hold the new card with the gold contacts on the far side.

Push the card down until it releases and can pop up.

Push the card into an empty socket until it clicks.

Lift the card out. Put the card in its case.

Close the card cover. Turn the 8120/8084 on (see section 2-2).

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1-4 Removing and replacing the display unit

If the 8120/8084 is bracket mounted then it can easily be removed for security.

Removing the display unit:

1 Turn the 8120/8084 off (see section 2-2)

and put the dust cover on.

2 Loosen the knobs on the mounting

bracket and lift the unit off the bracket.

3 Unplug the connectors from the

8120/8084; turn each locking collar anticlockwise until you can pull the plug out.

4 Store the 8120/8084 in a dry clean place.

Replacing the display unit

1 Plug the connectors into the back of the

display unit:

Match the connector’s color to the

socket color.

Insert each connector and turn the

locking collar clockwise until it is finger tight.

Nothing will be damaged if a cable is

plugged into the wrong socket by mistake.

2 Hold the 8120/8084 in place on the

mounting bracket. Tilt it for best viewing, then hand tighten the knobs on the mounting bracket. Remove the dust cover.

Knob

Mounting bracket

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2 Basic Operation

Overview of the 8120 keys

ESC

– Go back to an earlier menu or window.

In chart mode centers chart at boat’s position.

DISPLAY

– This is a powerful key that allows you to setup the display the way you want. Main displays can be saved as favorite displays for easy access from the

– Show a menu of the options for the

key.

current active window.

ENTER

– Start an action or accept a change.

t / – Changes the range on a window eg.

Chart or Sonar zooms

y , , , – Cursor keys, to move the cursor or

the selection highlight.

u – The key selects which window

you are working with. The Active window is indicated with a red border.

i – The key allows you to quickly

switch between your saved favorite displays.

GOTO

AUTO

– For a navigation display: Start navigating to a point, waypoint or along a route (see section 3-1-2). For sonar display: Select a sonar operating mode (see section 6).

SETUP

– The setup key takes you to the setup menu which allows advanced configuration of the 8120.

s – This key places a waypoint on the

Active Chart Window.

d – Man overboard (MOB, see section 2-4). f – Turn Instrument on and off (see section

2-2); adjust the backlighting (see section 2-3).

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Overview of the 8084 keys

ESC

– Go back to an earlier menu or window. In chart mode centers chart at boat’s position.

DISPLAY

– This is a powerful key that allows you to setup the display the way you want. Main displays can be saved as favorite displays for easy access from the

– Show a menu of the options for the current active window. The setup menu can be opened by pressing

ENTER

– Start an action or accept a change.

key.

twice.

t / – Changes the range on a window eg.

Chart or Sonar zooms

y , , , – Cursor keys, to move the cursor or

the selection highlight.

u – The key selects which window

you are working with. The Active window is indicated with a red border.

i – The key allows you to quickly

switch between your saved favorite displays.

o – This key places a waypoint on the

Active Chart Window.

a – Man overboard (MOB, see section 2-4).

s – Turn Instrument on and off (see section

2-2); adjust the backlighting (see section 2-3).

Note: Display refers to ALL windows and the data header/Compass

Window refers to a part of the display in which a particular function is shown e.g. The Chart window on a Chart + Sonar display.

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2-1 Using the keys

In this manual: Press means to push the key for less than

a second. Hold means to hold the key down. The internal beeper beeps when a key is

pressed (to adjust the beep volume, see section 19-1).

Using the menus

Operate the Instrument by selecting items from menus. Items can be submenus, commands or data.

Selecting a submenu

after a menu item indicates a submenu,

for example Chart

. Press or to move

the highlight to the submenu, then press

ENTER

Starting a command

Press

or to move the highlight to the

command, for example Goto cursor, then

ENTER

press

Changing data

First press

or to move the highlight to

the data to change, then:

a) To change a tick box

means On or Yes means Off or No.

Press

ENTER

or to change the tick box.

b) To select an option

1 Press 2 Press

ENTER

to display the list of options.

or to move the highlight to the

option you want, then press

ENTER

c) To change a name or number:

1 Press

2 Press

ENTER

to display the name or number:

or to select a letter or digit to

change. Press

or to change the letter

or digit.

Repeat this to change other letters or

numbers.

press

ENTER

to accept the new value. Or

ESC

to ignore the changes.

3 Press

d) To change a slider value

Press

to decrease the value or to increase

the value.

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2-2 Turning on and off / auto power

Turning on manually

If the Instrument is not wired for auto power, press

to turn the unit on. If necessary, adjust the display to be easy to read (see section 2-3).

WAR NI NG

If the Instrument is not wired for auto power then the Instrument does not record engine hours and will not record fuel consumption if not powered (see section 18-4).

Turning off manually

If the Instrument is not wired for auto power or if the ignition switch is off, hold down until the display turns off.

2-3 Backlight and night mode

To go to the Backlight window, press briefly.

Backlight

The display and keys are backlit. To change the backlight level, select Backlight, then press

to dim or to brighten. When you have finished, press

Tip: Press twice to give the brightest screen, with maximum backlight and Night mode off.

ESC

Auto power

If the Instrument is wired for auto power (see section 20-4), then:

• The Instrument automatically turns on when you turn the boat’s ignition switch on.

• You can not turn the Instrument off while the ignition switch is on.

• If Auto power off (see section 19-1) is Instrument automatically turns off when you turn the boat’s ignition switch off.

• If Auto power off (see section 19-1) is the Instrument stays on when you turn the boat’s ignition switch off. You can now turn the Instrument off manually.

, the

Night mode

Night mode sets the palette for all windows.

Normal palette, for daytime A palette optimized for night time.

To change mode, highlight Night mode, then press palette, see section 19-1.

ENTER

. To change only the chart

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2-4 Man overboard (MOB)

The MOB feature saves the boat’s position and then navigates back to this point.

WAR NI NG

MOB will not work if the Instrument does not have a GPS fix.

1 Press The Instrument stores the boat’s position

as a waypoint called MOB.

2 The Instrument changes to the chart

window, with the MOB waypoint at the centre of the chart.

The chart zooms in for accurate

navigation. If the chart can not show the required small scale, the Instrument changes to plotter mode (a white window with crosshatching and no chart details, see section 19-2).

3 The Instrument sets the MOB waypoint to

be the destination to navigate to.

If the NMEA output (autopilot) is off

(see section 19-12) use the Instrument to manually navigate to the destination MOB waypoint (see sections 3-1-1 and 3-1-2).

If the NMEA output (autopilot) is on, the

Instrument asks if the autopilot is active.

Select:

No: Use the Instrument to manually

navigate to the destination MOB waypoint (see sections 3-1-1 and 3-1-2).

Yes : The Instrument asks if the boat is to

go to the MOB waypoint. Select: Yes : to immediately start navigating to the

MOB waypoint.

WAR NI NG

This might result in a sudden and dangerous turn.

No: disengage the autopilot; then use

the Instrument to manually navigate

to the destination MOB waypoint (see

sections 3-1-1 and 3-1-2).

To cancel MOB or set another MOB

1 Press

again to display a menu.

2 Select an option from the menu.

Tip: The MOB waypoint remains on the chart after the MOB has been cancelled. To delete the MOB waypoint, see section 6-2-5.

2-5 Alarms

When the Instrument detects an alarm condition, it displays a warning message on the display, the internal beeper sounds and any external beepers or lights operate.

NAVMAN 8120/8084 Installation and Operation Manual 15

ESC

Press

to clear the alarm. The alarm will sound again if the alarm condition occurs again.

The Instrument has user settable alarms (see section 19-10).

Page 16

2-6 Simulate mode

In Simulate mode, the Instrument ignores data from the GPS antenna and other transducers and sensors and the Instrument generates this data itself. Otherwise, the Instrument functions normally.

There are two simulate modes:

• Normal: Allows a user to become familiar with the Instrument off the water.

• Demo: Simulates a boat moving along a route and automatically displays different Instrument functions.

2-7 The main windows

To show one of the main windows full-size, press

To start and stop Simulate mode, and for more information, see section 19-16. In simulate mode, Simulate or Demo flashes at the bottom of the window.

WAR NI NG

Never have Simulate mode on when using the Instrument to navigate on the water.

DISPLAY

and select the window.

Note

1 The windows available depend on the optional sensors and instruments that are installed

(see section 1-1).

2 Set up commonly used windows as favorites and press

to switch between windows (see

section 2-7-2).

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To show one of the other windows full-screen, press window.

DISPLAY

, select M or e... and select the

ESC

Press

to return from one of these

windows to the previous window.

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2-7-1 Multi window displays

The 8120/8084 can show up to four windows at once, for example Chart, Sonar, Gauges and Video:

Adding a window to the display

DISPLAY

Press

Changing window size

1 Press 2 Press

, select Add window and select a window to add. The 8120/8084 automatically rearranges the display to show the new window.

DISPLAY

and select Split ratio.

or to change the width of the windows. If the 8120/8084 is displaying three or four windows, press

or to change the height of the windows. Note: Some windows are fixed in size.

3 Press

ENTER

Deleting a window from the display

1 Press

until the window you want to

delete has a red border.

2 Press

DISPLAY

and select Delete window.

Exchanging two windows on the display

1 Press until the first window has a red

border.

2 Press

DISPLAY

, select Replace and select the

second window.

The 8120/8084 exchanges the two

windows.

Replacing a window on the display

1 Press

until the window that you want

to replace has a red border.

2 Press

DISPLAY

, select Replace and select a

new window that is not currently visible.

Note

1 When some windows are small then not all

the data is shown.

2 Set up commonly used displays as

favorites and press

to switch

between displays (see section 2-7-2).

The active window

If there is more than one window displayed, the active window is indicated by a red border. To change the active window to the next window, press

Pressing

will display the options menu for the active window.

Red border

Press

Chart is active Sonar is active

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2-7-2 Favorite displays

The 8120/8084 has a list of commonly used displays, called favorite displays. There can be up to six favorite displays.

Each display can have one or more windows plus a data header (see section 2-7-3) and a compass (see section 2-7-4). Set up favorite displays for common situations, for example navigating along a route, travelling in a harbour, fishing.

Selecting a favorite display

To select another favorite, press one or more times. For example, with six favorites:

Adding a favorite display to the list

1 Set up the display with the window or

windows you want in the new favorite (see sections 2-7-1 and 2-7-4).

2 Press

DISPLAY

and select Save this display.

The 8120/8084 displays the favorites list.

3 Select where in the list to add the new

favorite. If you select an existing favorite display then the new favorite will replace the existing favorite in the list.

Deleting a favorite display from the list

1 Press

twice then select Favorites.

2 Highlight the display to delete, press

and select Delete.

Changing the order of the favorites list

1 Press

twice then select Favorites.

2 Highlight the display to move, press

and select Move up or Move down.

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2-7-3 Data header

The displays can show data at the top, called the data header.

When you select a window from the

display menu (see section 2-7) the 8120/8084 displays an appropriate data header for the window.

Each favorite display (see section 2-7-2) has

its own data header. When you press to recall a favorite display, the 8120/8084 recalls the favorite displays data header.

Setting the data header for a display

1 Press 2 To turn the data header on or off:

3 To select the size of the data:

4 To change the data displayed:

iii Repeat the above step to set the other

DISPLAY

and select Data header.

i Select Data. ii Select

or .

i Select Size. ii Select the size to display.

i Select Data setup. ii Change a data field:

a Press the cursor keys to highlight the field.

b Press

ENTER

to display a menu

of data items.

c Select a data item that is available

on your system or select None to leave the field empty.

data fields.

Tip: If all fields in a line are None then the line will not be displayed and the data header will take less space on the display.

5 Press

ESC

Tip: The data header will change when you select another display. To set a data header that you can recall later, set the header as part of a favorites display (see below).

Favorites displays and data headers

To set a data header for a favorites display, follow the steps to add a favorite (see section 2-7-2 - Adding a favorite display to the list). In step 1, set the data header for the favorite as described above.

2-7-4 Compass

The chart, sonar and highway displays can show a compass at the top of the window.

The compass always shows the boat’s course over ground (COG), a black symbol in the middle. When the boat is navigating to a point, the compass also shows bearing to the destination (BRG), a red symbol.

In this example, BRG is 260°M and COG is 321°M.

To turn the compass off or on: 1 Press 2 Set Compass to

and select Data header.

or .

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3 Navigation: Chart

The chart window shows the chart, the boat’s position course and navigation data.

3-1 Introduction to navigating

The Instrument has two ways of navigating, going straight to a point or following a route.

3-1-1 Navigating to a point

When the Instrument is navigating to a point, the chart and highway windows show navigation data:

A The boat position B The destination point marked with a circle. C The boat’s plotted course to the

destination.

D Two CDI lines, parallel to the boat’s plotted

course, which indicate the maximum expected deviation from the plotted course.

For more information, see Appendix C. If the Instrument is connected to an autopilot,

the Instrument will send data to the autopilot to steer the boat to the destination. Start the autopilot before starting to navigate to the point.

If the Instrument has no autopilot, steer the boat manually:

a use the boat position and destination on

the chart or highway windows

b or use navigation data displayed on the

data header (see section 2-7-3)

c or use COG and BRG on the compass (see

section 2-7-4).

Note:

1 If the XTE alarm is enabled, an alarm will

sound if the boat deviates too much from its intended course (see section 19-10).

2 If the arrival radius alarm is enabled, then

an alarm will sound to show that the boat has reached the destination (see section 19-10).

3 When the destination is reached an

arrival warning appears with the option to cancel navigation (goto or route). Yes the navigation is cancelled, no navigation continues however XTE and highway are no longer displayed.

3-1-2 Going to a waypoint or to a point on the chart

A waypoint is a position that you can set on the Instrument chart, for example a fishing spot or a point on a route (see section 6).

Going to a waypoint from the chart window

1 Go to the chart window. 2 Move the cursor to the waypoint: either

use the cursor keys or use Find (see section 3-2-5).

3 Press

Going to a waypoint from the waypoints window

1 Go to the waypoints window. 2 Press

3 Press

and select Goto waypoint.

or to highlight the waypoint to

go to.

and select Goto.

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Going to a point on the chart

1 Switch to a chart window. 2 Move the cursor to the destination point:

either use the cursor keys or use Find (see section 3-2-5).

3 Press

and select Goto cursor.

WAR NI NG

Make sure the course does not pass over land or dangerous waters.

Navigating

The Instrument navigates to the point as described in section 3-1-1.

Cancelling navigating

Go to a Chart window, press

and select

Cancel goto.

Tip: Before starting, create waypoints at points of interest. Create a waypoint at the start of the trip for you to navigate back to (see section 5-2-1).

3-1-3 Following a route

Preparing

A route is a list of waypoints that the boat can follow (see section 6).

To create waypoints before creating the

route, see section 6-2-1.

To create a route, see section 6-2-1.

Starting a route from the chart window:

1 Go to the chart window. 2 Press 3 Press

4 The Instrument asks for the direction to

and select Start Route

or to highlight the route to

follow. Press

ENTER

traverse the route. Select Forward (the order the route was created) or Reverse.

5 The Instrument displays the chart with the

route marked and starts navigating from the start of the route.

Starting a route from the routes window:

1 Go to the routes window. 2 Then follow step 3 as in starting a route

from the chart window above.

Navigating

The Instrument navigates to each waypoint on the route in turn as described in section 3-1-1.

The Instrument stops navigating to the waypoint at the end of the current leg and starts the next leg of the route:

1 When the boat comes within 0.025 nm of

the waypoint 2 Or when the boat passes the waypoint 3 Or if you skip the waypoint.

Skipping a waypoint

To skip a waypoint, go to a chart window,

press

and select Sk ip. The Instrument starts navigating straight towards the next waypoint on the route.

CAUTION

Skipping a waypoint with the autopilot on might result in a sudden course change.

Cancelling a route

When the boat has reached the final waypoint, or to stop the boat following the route at any time, cancel the route. Go to a chart window, press

and select Cancel

route.

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3-2 Chart window

To go to the Chart window:

• Press

DISPLAY

and select Chart

A typical chart window shows:

A Data header. To turn the data off or on

or to change what data is displayed (see section 2-7-3)

B Compass (see section 2-7-4) C Chart scale (see section 3-2-3) D Boat position (see section 3-2-1) E Boat track (see section 3-5) F Boat course and CDI lines (see Appendix C,

CDI).

G Distance and bearing of cursor from boat H Land I Sea J The cursor (see section 3-2-1) K A typical waypoint (see section 6 )

Note:

To change the types of information displayed on the chart, see section 17-2.

To change to a perspective view of the chart, see section 3-2-6.

If the region on the chart is covered by a chart card then the card’s information is automatically displayed on the chart. If the region is not covered by a chart card then the chart displays a simplified built-in world chart which is suitable for planning and general interest.

WAR NI NG

The built-in world chart does not show enough detail for navigation. When you use the 8120/8084 to navigate, always use a chart card which covers the region.

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3-2-1 Chart modes

The Chart has two modes:

Centre on boat mode

To switch to centre on boat mode in the chart window, press

ESC

. The boat is at the centre of the chart. As the boat moves through the water, the chart automatically scrolls to keep the boat in the centre of the chart. The cursor (see below) is turned off.

Cursor mode

The keys

and are called cursor keys. To switch to cursor mode in the chart window, hold down a cursor key. The cursor

appears

and moves away from the boat:

Press the key which points in the direction that the cursor will move, for example press

to move the cursor down.

Press midway between two of the cursor keys to make the cursor move diagonally.

Hold a cursor key down to make the cursor move continuously across the window.

In Cursor mode:

The distance (

DST) and bearing ( BRG) of the cursor from the boat are displayed at the bottom corner of the window.

The chart does not scroll as the boat moves.

If the cursor reaches the edge of the window, the chart will scroll.

For example, hold down

to move the cursor to the right side of the window and the chart will scroll to the left.

3-2-2 Latitude and longitude

Latitude and longitude can be displayed in the data header. The window is degrees and minutes to three decimal places, about 2 m (6 ft) resolution. Normally the position is the boat’s position, and the latitude and longitude has a boat symbol to show this:

36° 29.637’ N or S Latitude 175° 09.165’ E or W Longitude

If the cursor has been moved in the last ten seconds, then the position is the cursor’s

position, and the latitude and longitude has a cursor symbol to show this:

36° 29.841’ N or S Latitude 175° 09.012’ E or W Longitude

WAR NI NG

When reading the boat position, make sure the position is not the cursor position.

3-2-3 Chart scale

Press to zoom in and display a smaller area of the chart in more detail. Press

to zoom

out and display a bigger area in less detail. The chart scale is displayed at the top left of

the chart:

3-2-4 Chart symbols and information

The chart shows many kinds of symbols, such as waypoints, ports, marinas, buoys and beacons. If necessary, press or to choose a chart scale where the symbol is displayed.

To see stored information about a symbol: 1 Either move the cursor to the symbol on

the chart and wait two seconds

or use Find to move the cursor to a symbol

for a port or service (see section 3-2-5).

2 A window appears at the bottom of the

display with some information about the symbol.

3 To see more detail about a symbol or a list

of associated items for the symbol, press

ENTER

i Select an item to display. If there are

more items than will fit on the window, press

or to scroll up or down.

Select a camera icon to display a photo

of the item. If the photo is too big to fit on the window, press scroll the photo.

Select Tide Station to display a tide

chart for the position (see section 14).

, , or to

NAVMAN 8120/8084 Installation and Operation Manual24

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ii Select other items or press

ESC

return to the chart.

To see stored information about nearby symbols press

and select Chart info.

Then follow step 3 above.

3-2-5 Finding a chart symbol

To find and display a chart symbol: 1 Press 2 Select the type of symbol: Waypoints,

3 For Ports & services: select the type of

For Ports by name: press

4 A list of items is displayed. If there are

For Ports by name: to search for a different

5 Select the item and press

and select Find.

Routes, Ports by name, Ports & services, or Tide stations.

service to find.

, , or to enter a name or letters contained in the port name, then press

ENTER

more items than will fit on the window, press

or to page up and down.

port name, press then press

ENTER

ESC

. Change the name,

ENTER

. The chart window changes to show the item in the middle of the window.

To see stored information about the item,

ENTER

press

(see section 3-2-4).

3-2-6 Perspective view

Perspective view shows the chart from an angle instead of from straight above. To turn perspective view on or off, press Perspective to

or .

and set

3-2-7 Turn the radar overlay on or off

If you have a radar installed, you can overlay the radar screen on your chart screen. This is extremely useful because it can help you to:

• interpret the radar image by matching the radar targets with charted objects

• quickly identify objects that are not on the chart, such as other boats

The radar overlay is also very useful in conditions of reduced visibility, at night, or in busy or hazardous waters.

The range, rotation, mode, and centre position of the radar are all adjusted automatically to match your chart.

To turn the radar overlay on or off:

or .

and set

From the chart window, press Radar Overlay option to

An extra menu item will them be displayed to control the radar and overlay.

3-3 Distance and bearing calculator

The distance and bearing calculator can plot a course of one or several legs and show the bearing and length of each leg, as well as the total distance along the course. The completed course can be converted into a route.

To use the distance and bearing calculator: 1 Select the Chart window. Press

select Distance.

2 Move the cursor to the start of the first

leg. It does not matter if this point is a waypoint or not. Press

ENTER

3 To add a leg to the course, move the

cursor to the end of the leg. It does not matter if this point is a waypoint or not. The window shows the bearing and length

and

NAVMAN 8120/8084 Installation and Operation Manual 25

of the leg, as well as the total distance along the course. Press

ENTER

4 To remove the last leg from the course,

press

and select Remove.

5 Repeat the above two steps to enter the

whole course.

6 To save the new course as a route,

press

and select Save. This also saves any new points on the course as new waypoints, with default names. If necessary, edit the route later (see section 6-2-2) and edit any new waypoints later (see section 6-2-3).

7 Finally, press

ESC

to return to the chart

window.

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3-4 Projected course

If Projected course is turned on, then the Instrument will display the projected position based on the course over ground (COG), speed and a specified time. To turn Projected course on and off and to set the time, see section 19-2.

A Projected position B Boat’s projected course C Boat position

3-5 Tracks and tracking

Tracking records the boat’s position to memory at regular intervals, which can be:

Time intervals. Or distance intervals.

The track of where the boat has been can be displayed on the chart. The Instrument can display one track while recording another.

To work with tracks, see section 19-7. The Instrument can store five tracks:

Track 1 can hold up to 2000 points and is intended to record the normal progress of the boat.

Tracks 2, 3, 4 and 5 can hold up to 500 points each and are intended to record sections to be retraced accurately, for example entering a river mouth.

Tip: Record a reference tracks and then use the track to help navigate the same trip later. For example, record a reference track as you leave harbour. Then if you return to harbour and visibility is poor, select the chart and navigate manually along the reference track back into the harbour. Record reference tracks in good conditions.

When recording is on and the track becomes full then recording continues and the oldest points in the track are deleted. The maximum length of a track depends on the selected track interval: a small interval will give a shorter, more detailed track and a long interval will give a longer, less detailed track, as shown in these examples:

Time intervals

Interval Track 1 Track 2, 3, 4 or 5

1 sec 33 minutes 8 minutes 10 sec 5.5 hours 1.4 hours 1 min 33 hours 8 hours

Distance intervals

Interval Track 1 Track 2, 3, 4 or 5

0.01 20 5 1 2,000 500 10 20,000 5,000 The track lengths are in the current distance units, for example

nm.

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4 Video window

The video window shows a picture from a video device, such as a camera. The video window requires a video device to be installed. To select the video window, press

DISPLAY

and select Video.

Adjusting the video picture colour

1 Press 2 Press

or to highlight a control, then

press

or to adjust the control.

3 To return the colors to their default

settings, select Restore defaults.

4 Press

ESC

Changing the video picture

Press to zoom in

Press

to zoom out

or to move

Press the picture sideways

or to move

Press the picture up and down

ESC

Press whole picture in the window

NAVMAN 8120/8084 Installation and Operation Manual 27

to ﬁ t the

Page 28

5 Navigation: Highway window

D D

The highway window has a bird’s eye view of the boat’s course to a destination:

To go to the Highway window, press select More, then select Highway.

DISPLAY

6 Navigation: Waypoints

A waypoint is a position that you can set on the Instrument chart, for example a fishing spot or a point on a route. The Instrument can have up to 3000 waypoints. A waypoint can be created, changed or deleted.

A waypoint has:

A name (up to eight characters). An icon showing what kind of waypoint it

is. The available icons are:

The highway window shows: A Optional data header (see section 2-7-3) B Optional compass (see section 2-7-4) C Destination waypoint D Boat’s plotted course to destination E CDI lines, parallel to the boat’s plotted

course (see Appendix C, Navigation data, CDI). The CDI lines are like a highway over the water where the boat will move

F CDI scale G The boat position is at the bottom, centre

of the window

WAR NI NG

The highway window does not show land, dangerous waters or chart symbols.

A position. A color for the waypoint symbol and name

on the chart.

A type:

Normal: A normal waypoint can be

navigated to or included in a route.

Danger: A danger waypoint is a point

to avoid. If the boat comes within the danger radius of a danger waypoint the unit can sound an alarm (see section 19-10).

A display option:

Controls how the waypoint is displayed on

the chart (see section 19-2):

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6-1 Waypoints window

To go to the waypoints window, press

DISPLAY

select More, then select Waypoints. The waypoints window is a list of the

waypoints that have been entered, each with waypoint symbol, name, latitude and longitude, distance and bearing from the boat, type and display option.

If there are more waypoints than will fit on the window, press

or to scroll up or

down a page at a time.

6-2 Managing waypoints

WAR NI NG

Do not create a navigation waypoint on land or in dangerous water.

6-2-1 Creating a new waypoint

Creating and editing a new waypoint from the chart window

1 To create a waypoint at the boat position,

Or, to create a waypoint at a different

2 Press 3 A new waypoint, with the default name

4 Change the waypoint data if necessary

Creating a new waypoint from the waypoints window

1 In the waypoints window, press

2 A new waypoint, with a default name and

3 Change the waypoint data if necessary

ESC

press

to switch the chart to centre on

boat mode.

point, move the cursor to that point on the chart.

ENTER

and data is created.

(see section 6-2-7).

and

select Create.

data, is created at the boat position.

(see section 6-2-7).

Note: Waypoints can also be created when a route is created (see section 6-2-1).

6-2-2 Moving a waypoint

Moving a waypoint from the chart window

1 In the chart window, move the cursor to

the waypoint to move.

2 Press

and select Move.

3 Move the cursor to the new position and

ENTER

press

Moving a waypoint from the waypoints window

To move a waypoint from the waypoints window, edit the waypoint (see section 6-2-3) and change the latitude and longitude.

6-2-3 Editing a waypoint

Editing a waypoint from the chart window

1 In the chart window, move the cursor to

the waypoint to edit.

2 When the waypoint data is displayed,

3 Change the waypoint data

ENTER

press

(see section 6-2-7).

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Editing a waypoint from the waypoints window

1 In the waypoints window, press

highlight the waypoint to edit. Press

or to

and select Edit.

2 Change the waypoint data

(see section 6-2-7).

6-2-4 Displaying a waypoint on the chart

This goes to the chart window, and shows the selected waypoint at the centre of the window.

1 In the waypoints window, press

or to

highlight the waypoint to display. Press

and select Display.

Or, in the Chart window, press

, select Find, then select Waypoints. Select a waypoint from the list.

2 The Instrument switches to the chart

window, with the selected waypoint at the centre of the chart.

6-2-5 Deleting a waypoint

A waypoint can not be deleted if the boat is navigating to it or if the waypoint is used in more than one route. A waypoint that is used in one route can be deleted.

WAR NI NG

When a waypoint is deleted from a route, check that the changed route does not cross land or dangerous waters.

Deleting a waypoint from the chart window

1 In the chart window, move the cursor to

the waypoint to delete.

2 Press 3 Select Ye s to confirm.

and select Delete.

Deleting a waypoint from the waypoints window

1 In the waypoints window, press

to highlight the waypoint to delete. Press

and select Delete.

2 Select Ye s to confirm.

6-2-6 Deleting all waypoints

1 In the waypoints window and press

and select Delete all.

2 Select Ye s to confirm.

6-2-7 Changing a waypoint’s data

To change the waypoint data when it is displayed in a window:

1 Select the data to change. Press

ENTER

. Use the cursor keys to change the data. Press

ENTER

. 2 If necessary, repeat the above step to

change other data.

3 Select Save.

6-2-8 Sort Waypoints

To change how the waypoints list is displayed:

1 Press

and select Sort by. 2 Select how to display the list: Name: In alphabetical order by name. Ico n: Grouped by icon type. Distance: In order of distance from the

boat.

An arrow at the top of a column indicates how the waypoints are sorted.

6-2-9 Navigating to a waypoint

See section 3-1-2.

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7 Navigation: Routes

A route is a list of waypoints that the boat can navigate along. Routes can be created, changed and deleted.

The Instrument can have up to 25 routes. Each route can have up to 50 waypoints.

A route can:

Start and stop at the same waypoint . Include waypoints more than once.

7-1 Routes window

The routes window is a list of the routes that have been entered, each with route name, start waypoint, end waypoint, number of legs and total distance.

To go to the routes window, press select More, then select Routes.

If there are more routes than will fit on the window, press page at a time.

or to scroll up or down a

DISPLAY

The Instrument can navigate along a route in either direction. Waypoints on the route can be skipped.

Routes are a powerful feature when the Instrument is connected to an autopilot, allowing the vessel to be automatically guided along the route.

WAR NI NG

Make sure that routes do not cross land or dangerous water.

7-2 Managing routes

WAR NI NG

After creating or changing a route, display the route on the chart and check that it does not cross land or dangerous water.

7-2-1 Creating a new route

A. Creating a new route from the chart window

While creating the route:

Press or to change the range; scroll

the chart by moving the cursor to the edge of the chart.

NAVMAN 8120/8084 Installation and Operation Manual 31

• A data box at the bottom left of the

window shows the route name and total distance. If the cursor is near a leg, it shows the length and bearing of the leg as well.

The legs of a route must start and end at

waypoints. If a leg does not start or end at an existing waypoint then a new waypoint will be created automatically (to change the new waypoint data, see section 6-2-1).

You can not use a Danger waypoint in a

route.

Page 32

1 In the chart window, press

and select

New route.

2 The route is given a default name:

i Change the name if necessary. ii Select OK.

3 To enter the legs of the route:

i Move the cursor to the start of the

route and press

ENTER

ii A waypoint is created with a default

name. To save this waypoint press , to edit the waypoint refer to 6-2-3

iii Press

ENTER

a dotted leg line is displayed from the cursor to the previous waypoint

iv Move the cursor to the end of the first

leg and press

ENTER

v Repeat i to iv until the last waypoint in

the route is placed and saved

vi Press

ESC

to complete the route

Menu options while creating a route:

1 To add a waypoint to the route

i Press

and select Add.

2 To insert a waypoint in the route by

breaking one leg into two: i Move the cursor to the leg you want to

break.

ii Press

and select Insert.

iii Move the cursor to where the new

route waypoint will be.

iv Press

ENTER

3 To move a waypoint in the route:

i Move the cursor to the waypoint to

move.

ii Press

and select Move.

iii Move the cursor to where the waypoint

will be.

iv Press

ENTER

4 To remove a waypoint from the route:

i Move the cursor to the waypoint to

remove from the route.

ENTER

ii Press

and select Remove. The waypoint is removed from the route, but the waypoint is not deleted.

5 To start navigating the route

i Press

and select Start

6 To end creating the route

i Press

and select End

7 To delete the route

i Press

and select Delete

ii Select yes to confirm.

Tip: The distance and bearing calculator can also be used to enter a course and save it as a route (see section 3-3).

B. Creating a new route from the routes window

1 In the routes window, press

and

select Create.

2 A new route, with a default name and no

waypoints, is displayed.

3 To change the route name:

i Select the route name at the top of the

window and press

ENTER

. ii Change the name if necessary. iii Press

ENTER

4 To insert a waypoint in the route:

i Select where the waypoint will be:

To insert the first waypoint in a new

route, select Leg 1.

To insert a waypoint at the end of the route, select the unused leg at the end of the list of waypoints.

Otherwise, select the waypoint to insert the new waypoint in front of.

ii Press

ENTER

. A list of waypoints is

displayed. Select the waypoint to use.

As waypoints are inserted, the distance

and bearing of each leg is shown automatically. If the route has more waypoints than will fit on the window, press

or to see them.

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5 To remove a waypoint from the route:

i Select the waypoint to remove. ii Press

and select Remove.

6 Repeat this process until the route is

finished.

7 Press

ESC

8 Display the route on the chart (see section

6-2-3) and check that the route does not cross land or dangerous water.

7-2-2 Editing a route

Editing a route from the chart

1 In the routes window, select the route to

edit. Press

2 The selected route is displayed on the

chart, with a circle around the first waypoint.

3 Edit the route as described in section 6-2-1

A, starting at step 4.

Editing a route from the routes window

1 In the routes window, press

highlight the route to edit. Press select Edit.

2 The selected route is displayed: the route

name and a list of the waypoints.

3 Edit the route as described in section 6-2-1

B, starting at step 3.

and select Edit on chart.

or to

and

7-2-3 Displaying a route on the chart

To view the selected route at the centre of the window:

1 In the routes window, press

highlight the route to window. Press

or to

and select Display.

Or, in the Chart window, press

, select Find, then select Route. Select a route from the list.

2 The Instrument displays the selected route

on the chart.

7-2-4 Deleting a route

1 In the routes window, press or to

highlight the route to delete. Press and select Delete.

2 Select Yes to confirm.

7-2-5 Deleting all routes

1 In the routes window, press

select Delete all.

2 Select Ye s to confirm.

and

7-2-6 Navigating a route

See section 3-1-3.

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8 Satellites

GPS worldwide navigation

The US Government operates the GPS system. Twenty-four satellites orbit the earth and broadcast position and time signals. The positions of these satellites are constantly changing. The GPS receiver analyses the signals from the closest satellites and calculates exactly where it is on earth. This is called the GPS position.

The accuracy of the GPS position is typically better than 10 m (33 ft) for 95% of the time. A GPS antenna can receive signals from the GPS satellites when it is almost anywhere on earth.

DGPS

A DGPS system uses correction signals to remove some of the errors in the GPS position. The Instrument can use one of two types of DGPS system:

WAAS and EGNOS DGPS

WAAS and EGNOS are two satellite based

DGPS systems. The correction signals are broadcast by satellites and are received by the Instrument’s standard GPS antenna. The accuracy of the corrected GPS position is typically better than 5 m (15 ft) for 95% of the time.

WAAS covers all of the USA and most of

Canada. EGNOS will cover most of Western Europe when it becomes operational.

Differential beacon DGPS

Differential beacons are land based radio

transmitters that broadcast correction signals that can be received by a special receiver on the boat. Differential beacons are usually only installed near ports and important waterways, and each beacon has a limited range. The accuracy of the corrected GPS position is typically better than 2 to 5 m (6 to 16 ft).

GPS receiver

NAVMAN GPS units have a sensitive 12-channel receiver, which tracks signals from all GPS satellites visible above the horizon and uses measurements from all satellites more than 5° above the horizon to calculate the position.

Each time a GPS receiver is turned on, it normally takes about 50 seconds before it outputs the first position. Under some circumstances it will take up to two minutes or longer.

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8-1 Satellite window

The satellite window has information about the GPS satellites and GPS position.

To go to the satellite window, press

DISPLAY

select More, then select Satellite.

The satellite window shows:

9 Sonar fishfinding: Introduction

A Status of GPS antenna, for example

Acquiring, GPS fix, No GPS. If the unit is in Simulate mode it displays Sim ulate (see section 2-6).

B Time and date from GPS satellites. Time is

local time (UTC [GMT] plus local offset, see section 19-4)

C HDOP: The error in the GPS position

caused by satellite geometry. A low value indicates a more precise fix, a high value a less precise fix

D Signal strengths of up to twelve visible

GPS satellites. The higher the bar the stronger the signal

E Boat position F Positions of visible GPS satellites:

Outer circle is horizon Inner circle is 45° elevation Centre is directly above North is at top of window

G If the boat is moving, COG is a line from

centre

Sonar functions require an optional sonar transducer to be installed and set up.

This section explains how to interpret the sonar displays, when and why to use the different frequencies and how fish are detected and displayed.

9-1 Using the Instrument

The Instrument uses a sonar transducer attached to the hull. The transducer generates an ultrasonic pulse (sound that is above the hearing range of the human ear), which travels down towards the bottom at a speed of about 4800 ft/sec (1463 m/sec), spreading out into a cone shape.

When the pulse meets an object, such as a fish or the bottom, it is partly reflected back up towards the boat as an echo.

NAVMAN 8120/8084 Installation and Operation Manual 35

It also describes Gain and Range and shows examples of some of the different sonar displays.

The depth of the object or bottom is calculated by the Instrument by measuring the time taken between sending a pulse and receiving the echo. When an echo has been returned, the next pulse is sent.

The Instrument converts each echo into an electronic signal, displayed as a vertical line of pixels.

Page 36

The most recent echo appears on the extreme right of the window, with the older echoes being scrolled towards the left, eventually disappearing off the window.

The scroll speed depends upon the water depth and scroll speed setting. See sections 19-3 and section 9-2, for more information.

The appearance of echoes displayed are affected by:

• The Instrument settings (see sections 19-3, 9-5 and 9-6)

• Echoes (different fish types, different bottom types, wrecks and seaweed; see section 9-2)

• Noise (water clarity and bubbles; see section 9-2).

Cruise, Fishing and Manual Modes

The Instrument has three sonar operating modes:

9-2 Interpreting the display

• Cruising mode: Use this when on the move. The Instrument automatically adjusts its settings to compensate for water clarity and to display the bottom.

• Fishing mode: Use this when fishing. The Instrument automatically adjusts its settings to compensate for water clarity and to best display fish, the bottom and other details.

• Manual mode: Use this to fine-tune the Instrument settings by hand. Best results are often achieved in manual mode, but practice and experience are required to obtain the optimum settings for different conditions.

For more information about modes, see sections 9-5 and 9-6.

WAR NI NG

Use the automatic Cruising or Fishing modes when learning to use the Instrument or when travelling at speed.

The sonar windows do not show a fixed distance travelled by the boat; rather, they display a history, showing what has passed below the boat during a certain period of time.

The history of the sonar signal displayed depends the depth of the water and the scroll speed setting.

In shallow water, the echoes have a short distance to travel between the bottom and the boat. In deep water, the history moves across the window more slowly because the echoes take longer to travel between the bottom and the boat. For example, when the scroll speed is set to Fast, at depths over 1000 ft (300 m) it takes about 2 minutes for the data to move across the window, whereas at 20 ft (6 m) it takes only about 25 seconds.

NAVMAN 8120/8084 Installation and Operation Manual36

A School of fish B Single fish C Hard bottoms such as rock and coral show

as wide bands

D Soft bottoms such as mud, weed and sand

show as narrow bands

Page 37

The scroll speed can be set by the user to display either a longer history with less fish information or a shorter history with more fish details (see section 19-3).

If the boat is anchored, the echoes all come from the same area of bottom. This produces a flat bottom trace on the window.

The screen shot shows a typical sonar window with the Fish symbols turned Off. The sonar pulse generated by the Instrument transducer travels down through the water, spreading outwards in a cone shape. The cone width is dependent upon the frequency of the pulse; at 50 kHz it is approximately 45°, and at 200 kHz it is approximately 11°.

The differences in the cone width affect what is displayed. (See section 9-3)

Strength of echoes

The colors indicate differences in the strength of the echo. The strength varies with several factors, such as the:

• Size of the fish, school of fish or other object.

Frequency and cone width

• Depth of the fish or object.

• Location of the fish or object. (The area covered by the ultrasonic pulse is a rough cone shape and the echoes are strongest in the middle.)

• Clarity of water. Particles or air in the water reduce the strength of the echo.

• Composition or density of the object or bottom.

CAUTION

Planing hulls at speed produce air bubbles and turbulent water that bombard the transducer. The resulting ultrasonic noise may be picked up by the transducer and obscure the real echoes.

Bottom types

Mud, weed and sandy bottoms tend to weaken and scatter the sonar pulse, resulting in a weak echo. Hard, rocky or coral bottoms reflect the pulse, resulting in a strong echo.

Water Depth ft/m Cone width at 50 kHz Cone width at 200 kHz

45˚ cone 11˚ cone

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Page 38

Shadows

Shadows are created around areas where the ultrasonic beam cannot ‘see’. These areas include hollows on the bottom or beside rocks and ledges, where the strong echoes returned off the rocks obscure the weak echoes of the fish and may also create a double bottom trace. See following for

an example of the sonar window in such an environment. A double bottom trace is shown on the window.

When looking for fish with the wide angled 50 kHz frequency, be aware of increased shadows. Use the high frequency 200 kHz in areas that have rocks and ledges because this frequency reduces the shadow effect considerably.

Sonar window of same areaExample of shadows

A Fish is visible on the window B Fish is hidden by the strong echoes off the

bottom and is not shown on the window

9-3 Single and Dual frequency fishfinding

Sonar frequencies

The Instrument has two sonar frequencies, 200 kHz and 50 kHz. To select the sonar frequency to use:

1 Go to a sonar window (see section 9). 2 Press

, select Frequency and select

200 kHz, 50 k Hz, or Mixed.

When to use 200 kHz

The 200 kHz frequency is especially suitable for use in shallow and medium depth water, typically less than 500 ft (150 m) and while running at speed.

At 200 kHz, the narrow cone reduces any noise caused by air bubbles.

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The 200 kHz frequency generates a higher definition pulse which produces little shadow and returns excellent detail over a small area of bottom. Therefore, it gives excellent bottom discrimination capability and is particularly good at showing individual fish, including bottom dwellers.

When to use 50 kHz

The 50 kHz frequency is particularly suitable for use in deep water, typically greater than 500 ft (150 m).

At 50 kHz, the cone covers an area of water about four times wider than the 200 kHz cone and penetrates to a greater depth with minimal loss of the return signal.

However, it produces a lower definition display with more shadow compared to the 200 kHz frequency. This means that a group of small fish, for example, could be displayed as a single item, while any fish very close to the bottom may not be found at all.

This frequency is useful for getting a deep, wide overview of the area so that any areas of interest can be identified and then examined in detail with the 200 kHz frequency.

When to use Mixed

The Mixed frequency combines the 200 kHz and the 50 kHz echoes on one sonar window, filling in detailed echoes in the centre of the sonar cone.

When to use 50/200 kHz

Operating the Instrument at both 50 kHz and 200 kHz simultaneously on a split window can be very useful when operating in shallow to medium water, typically less than 500 ft (150 m), because the 50 kHz section of the window shows the general area, while the 200 kHz section can be viewed simultaneously for a more detailed look at any interesting feature.

To use 50/200 kHz, select the Split 50/200 window (see section 9-4).

A Narrow angle, more detailed 200 kHz cone B Wide angle, less detailed 50 kHz cone

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Comparison of the same fish scenario displayed at different frequencies:

1 minute ago

50 kHz display

30 seconds ago Now

200 kHz display

200/50 Khz display Mixed display

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9-4 Fish detection and display

Where to find fish

Underwater features like reefs, wrecks and rocky outcrops attract fish. Use the 50 kHz or 50/200 kHz frequency window to find these features, then look for fish by passing over the feature slowly several times using the Zoom window (see section 9-2). If there is a current, the fish will often be found downstream of the feature.

When fishing with the Instrument with the Fish symbols Off, a weak fuzzy band may appear between the bottom trace and surface. This might indicate a thermocline

- a rapid change in water temperature, such as the edge of a warm or cold current. The temperature difference can form a barrier which the fish may not swim through. In fresh water, fish often collect around a thermocline.

Fish symbols

The Instrument uses NAVMAN’s SBN II technology to analyze sonar echoes and identify which are likely to be fish. The Instrument can be set up to display a fish symbol and the depth over these echoes (see section 19-3, Fish symbols). While SBN II is very sophisticated it is not foolproof - there will be times when the Instrument will not be able to differentiate between fish and large air bubbles or rubbish.

Depending on the strength of a fish signal, the Instrument can display a small, medium or large symbol (see section 19-3, Fish filter).

To see the maximum amount of information from the echoes, turn Fish symbols off. Fish appear as arches on the window.

Fish arches

In good conditions, a fish passing through the cone-shaped ultrasonic pulse is displayed as a fish arch. The 50 kHz frequency uses a wider cone than the 200 kHz frequency. This makes the fish arches easier to see.

A fish arch starts when a fish enters the weak edge of the sonar cone, generating a weak echo that is displayed as the start of the fish arch. As the fish moves closer to the middle of the cone, the distance between the transducer and the fish reduces and the echo is displayed at progressively shallower depths, producing a rising shape. When the fish passes directly beneath the middle of the cone, the echo becomes strongest and thickest. As the fish passes out of the middle of the cone the reverse happens with a progressively weaker and deeper echo.

There are many reasons why fish arches may not be seen. For example:

• Poor transducer installation (see Transom Transducers Installation Guide).

• If the boat is anchored then fish will tend to show on the window as horizontal lines as they swim into and out of the transducer sonar beam. Slow speeds in deeper water give the best fish arch returns.

• Range is important. It will be much easier to see fish arches when using zoom mode to concentrate on a particular section of water, rather than just displaying everything from the surface to the bottom. Zooming increases screen resolution and is necessary for good fish arches.

• It is difficult to get fish arches in shallow water as the transducer sonar beam is very narrow near the surface and fish do not stay within the beam long enough to display an arch. Several fish in shallow water tend to display as randomly stacked areas of color.

• Wave motion may result in distorted fish arches.

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Normal fish symbolFun fish symbol

9-5 Range

Range is the vertical depth displayed on the Instrument sonar window. For example, if the range is 100 m, then the sonar window shows depths between 0 and 100 m. The range is displayed at the bottom, right corner of a sonar window.

The Instrument has two range modes: Auto: The Instrument adjusts the range

automatically so that the bottom of the water is always shown at the bottom of the window. Auto range is recommended for normal operation.

To set Auto mode:

1 Go to a sonar window (see section 9). 2 Press

Manual: The Instrument does not adjust

the range automatically. If the bottom depth is below the range, the bottom will not appear on the window. Manual range is useful if the bottom depth changes rapidly, because Auto range will cause the window to change range frequently.

, select Range then Auto.

Fun symbol + depth

Fish arch + depth

To set Manual range or to change the

range: 1 Go to a sonar window (see section 9). 2 Either press

press

to increase range or

to decrease range

WAR NI NG

Use the Auto range when learning to use the Instrument or when travelling at speed.

Zoom range and offset

The sonar Zoom and Bottom windows can show a magnified part of the range (see sections 9-2 and 9-3).

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9-6 Gain and threshold

Gain and threshold settings control the amount of detail displayed on a sonar window:

Gain: The gain of the sonar receiver. The gain should be high to display good detail, but if the gain is too high then information from the strong bottom signal is lost and false echoes might be displayed. There is a separate gain setting for each sonar frequency, 50 kHz and 200 kHz.

Threshold: Return echoes less than the threshold are ignored. The threshold should be as low as possible, but if the threshold is too low, unwanted noise will be displayed. Threshold is set as a percentage of gain. For example, if the threshold is 50 %, then return echoes less than 50 % of the maximum signal are ignored. There is a separate threshold setting for each sonar frequency, 50 kHz and 200 kHz.

The gain window

To display or change the current settings for gain, select a sonar window and press Select Threshold to display the thresholds.

ENTER

Changing mode

The Instrument has three operating modes, In Cruising and Fishing modes, the Instrument automatically adjusts gain and threshold for good performance. In manual mode, you can hand adjust the settings.

To change the mode from the Gain window, Select Mode and then select Fishing,

Cruising or Manual. When you select Manual, the Instrument reverts to your last

manual settings.

Changing gain and threshold

1 In the Gain window, press

or to select

the setting to adjust.

2 Press

or adjust the setting. The

Instrument changes to Manual mode.

Tip: Use the A-scope window to help set

gain or threshold manually (see section 10-5) .

This window is called the gain window.

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10 Sonar fishfinding: Windows

To show the Sonar window, press

DISPLAY

, then

select Sonar. There are five kinds of sonar window. To use a

window, press

, select Sonar splits,

then select the type of window to use: No split: Sonar history window at a single or

mixed frequency (see section 10-1). Split zoom: Sonar history plus a zoomed

section (see section 10-2)

Full screen zoom: (see section 10-2) Split bottom: Sonar history plus a bottom

trace in a zoomed section (see section 10-3) Split 50/200: Sonar histories at 50 and 200

kHz (see section 10-4)

10-1 Sonar history window - no split

Split A-Scope: Sonar history plus echo

strength (see section 10-5) If the window is split, adjust the split ratio if

required: 1 Press 2 Press 3 Press

and select Sonar window split.

or to adjust the ratio.

ENTER

A Optional data header (see section 2-7-3) B Optional compass (see section 2-7-4) C Depth D Color bar E Bottom F Range G Fish symbols with depth H Depth line

The window scrolls from right (most recent echoes) to left (oldest echoes).

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10 -1-1 E xt ende d hist or y mod e

To review an old sonar echo, use and to move back and forward through the sonar history. The time since the echoes shown on the screen were recorded is displayed at the bottom of the screen. Press

ESC

to return to

the most recent echo. The digital depth shown is always the current

depth, even in extended history mode. The History Position Bar indicates the age of

the most resent echo on the screen, and the position of the current screen in the recorded history.

10-2 Sonar Zoom and Full Screen Zoom displays

D E

A Divider line B Depth line marks the centre of the

zoomed area

C Zoom bar D Zoom section E Sonar history

History position bar

These windows show a zoomed section of the sonar history. The Sonar Zoom display shows the sonar history on the right and the zoomed section on the left. The Full Screen Zoom display shows the zoomed section only.

The zoom bar on the far right shows the area of the history that is magnified in the zoom section:

• Press

or to adjust the zoom range (the range of depths included in the zoom section).

• If Bottom lock is on, the zoom depth (the depth of the zoom section) is adjusted automatically so that the bottom is always displayed in the zoom section.

If Bottom lock is off, press

or to manually adjust the zoom depth. If bottom lock is on it will turn off.

Bottom lock

To turn Bottom lock on or off: 1 Press

and select Bottom lock.

2 Select On or Off. Or if Bottom lock is

on, pressing

or will turn it off.

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10-3 Sonar Bottom window

A Zoomed bottom signal B Sonar history

10-4 Sonar 50/200 window

The window shows the sonar history on the right and the bottom signal as a flat trace in the centre of the zoom section on the left. The flat trace make it easy to compare the echo strengths shown in the bottom signals. This can help to identify the type of bottom and objects close to the bottom.

The zoom bar on the far right shows the area of the history that is magnified in the zoom section:

• Use the

range.

• The Instrument calculates the zoom depth automatically.

It is not necessary to turn Bottom lock on for this window.

The window shows:

A the 50 kHz sonar history on the left B the 200 kHz sonar history on the right.

Gain can be set independently for each frequency (see section 9-6). Range applies to both frequencies (see section 9-5).

or keys to adjust the zoom

A B

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10-5 Sonar A-Scope window

The window shows the sonar history on the left and the A-Scope window on the right. The A-Scope shows:

A, B, C, The strengths of echoes being received now from different depths - the longer the horizontal line the stronger the signal:

A Unwanted noise echoes. B Echoes from fish and the bottom C The strongest echo, usually from the

bottom

D A vertical line showing the threshold,

the weakest echo to display on the sonar history

E A vertical line showing the gain setting;

echoes above this strength will display as the maximum signal strength

Use the A-Scope while adjusting the gain and threshold settings manually (see section 9-6).

Setting gain and threshold

It is convenient to use the A-scope window when adjusting gain and threshold manually. Follow this procedure to adjust gain and threshold for normal circumstances:

1 Switch to a sonar window (see section 9). If

necessary, press that the bottom is displayed.

2 If necessary, select the sonar frequency to

adjust the settings for. Press

Frequency and select 200 kH z or 50 kHz.

or to adjust range so

, select

, select Sonar splits then select

Split A-scope.

ENTER

to display the Gain window. To

3 Press

4 Press

adjust gain or threshold for a frequency, press

or to select the setting to

adjust, then press

or to change the

setting.

5 Set threshold to zero. 6 Adjust Gain so the peak of the strong

signal from the bottom just touches the gain line.

7 Adjust threshold so that it is just to the

right of the noise.

8 Press

ESC

to close the gain window.

9 If required, repeat these steps to

adjust gain and threshold for the other frequency.

Note: Setting the gain higher will display more detail from weak echoes, like fish, but will loose detail from the strong echo from the bottom.

Fish recognition

The echo strengths shown on the A-scope can be useful in recognizing the type of fish. Different species of fish have different sizes and shapes of swim bladders. The air in the swim bladder reflects the ultrasonic pulse, so the strength of the echo varies between fish species according to the size and shape of the swim bladder.

When catching fish from a school, note the species and the strength of the echo that it returns on the A-scope. Then, when that particular echo is seen again, it is likely to be the same fish species.

Bottom type

The shape of the echo strengths in the A-Scope can help you to recognise the type of bottom.

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11 Gauges wi ndow

The Gauges window shows boat data, such as water speed, as analog gauges. To select the Gauges window, press

DISPLAY

, select More, then select Gauges. Before using the Gauges window, set Speed range, Max RPM and Max fuel flow (see section 19-13).

12 Data window

Selecting a Gauges layout

The Gauges window can show one of four gauge layouts. To select a layout from the Gauges window, press

, select Layout

and select a layout.

Changing a gauge layout

You can change the data displayed on each gauge in a layout.

1 Select the layout to change (see above). 2 Press 3 Highlight the gauge to change. Press

and select Gauge setup.

ENTER

and select the data to display in the gauge.

4 Repeat the above step to change other

gauges.

5 Press

ESC

The data window has large numeric data fields and a graph of depth and water temperature if available. To go to the data window, press

DISPLAY

, select More, then select

Data.

To select what data is displayed: 1 Press

and select Data setup.

2 Change a data field:

i Press the cursor keys to highlight the

field.

ii Press

ENTER

to display a menu of data

items.

iii Select a data item that is available on

your system or select None to leave the field empty.

3 Repeat the above step to set the other

data fields.

4 Press

ESC

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13 Fuel functions and display

The Fuel functions require optional petrol/gasoline, diesel or SmartCraft fuel sensors to be installed and set up.

13-1 What the fuel computer does

Each engine has a flow sensor installed to

measure the engine’s fuel flow. The 8120/8084 use these flows, together with

boat speed and engine RPM if available to estimate the fuel remaining in the tank(s), fuel used, range and fuel economy. This data is displayed on the fuel display (see section 13 -2) .

You can:

display the fuel used during a trip

(see section 13-2) set low fuel alarms (see section 13-4) make fuel consumption curves - graphs

of fuel consumption and boat speed as a

function of engine RPM - to monitor and

optimize boat performance.

(see section 13-6)

To ensure the fuel data is accurate:

When you add or remove fuel from a

tank, tell the 8120/8084 (see section 13-3)

If the boat has petrol/gasoline sensors,

calibrate them during installation or if the fuel readings seem inaccurate (see section 13-7)

Choose an appropriate type of

boat speed sensor or GPS source to calculate economy, range and the fuel consumption curve (see section 13-5)

If the boat uses a paddlewheel sensor

to measure speed, calibrate it during installation or if the speed readings seem inaccurate.

WAR NI NG

13-2 Fuel display

Fuel display

To go to the Fuel display, press More, then select Fuel.

The display differs according to the number of engines and tanks. If engine RPM is available and if you have made and selected a Fuel Consumption Curve (see section 13-6), press

to switch between a Summary or a

Fuel curve display.

DISPLAY

, select

The Fuel display shows

Speed

To select a boat speed sensor, see section 13-5-1.

RPM (if available)

If engine RPM is not available, the display shows depth.

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Remaining

The fuel remaining in the tank(s) is shown as a vertical gauge on the right of the display. The height of the yellow bar(s) show how much fuel remains in the tank(s). If you have set a low fuel alarm (see section 13-4), a red bar shows the level at which the alarm will trigger. If there are two tanks, the left bar shows the port tank, the right bar shows the starboard tank.

Used

The fuel used during a trip. On a multi-engine boat, the data for the port engine is on the left of the display.

When you want to start measuring how much fuel is used, go to the Fuel display and:

In a single engine boat, press

and

select Clear used. In a multi-engine boat, the fuel used by

each engine and the total fuel used are

shown. Press

, select Clear used

and select: Port or Starboard to clear the fuel

used by one engine Both to clear the total fuel used.

Fuel flow

The fuel flow for the engine(s). On a multi engine boat, the data for the port engine is on the left of the display. Use the flows to check the load of each engine.

Range

The estimated boat range at the current fuel flow. The value can depend on the type of speed sensor (see section 13-5).

Economy

The distance travelled per unit of fuel used. The value can depend on the type of speed sensor (see section 13-5). The larger the value, the better the fuel economy. Adjust the throttle and trim to achieve the best economy.

Fuel consumption curve

A graph of fuel consumption and boat speed as a function of engine RPM. Use the curve to monitor and optimize boat performance (see section 13-6).

13-3 When you add or remove fuel

When you add or remove fuel, you must tell the 8120/8084, otherwise the fuel data will be meaningless.

A When you completely fill a tank

Go to the fuel display and press Then:

On a single-tank boat, select Fill tank. On a multi-tank boat, select Fill tank,

then select the tank you have filled.

Note: Underfloor fuel tanks are often difficult to refill to the same level twice, due to air pockets.

With underfloor fuel tanks:

Trim the boat to the same angle in the

water each time you follow procedure A.

NAVMAN 8120/8084 Installation and Operation Manual50

Mostly use procedure B below when adding fuel, but completely fill the tank and follow procedure A about every tenth time you add fuel.

B When you part fill a tank

1 Add fuel to a tank and write down how

much fuel you add.

2 From the Fuel display, press

and

select Add fuel.

3 On a multi-tank boat, select the tank that

you have added fuel to.

4 Change the number to the amount of fuel

that you added.

Note: If you follow procedure B every time you add fuel, then a small error will accumulate, because it is hard to measure exactly how much fuel you add. To avoid this, completely fill the tank and follow procedure A about every tenth time you add fuel.

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C When you remove fuel

1. Before removing fuel, go to the Fuel display, press

and select Set

remaining.

2. On a multi-tank boat, select the tank that you are removing fuel from.

3. Write down the value of Remaining for the tank; this is the amount of fuel originally in the tank.

4. Remove fuel from the tank and write down how much fuel you remove.

13-4 Low fuel alarm

5. Subtract the amount of fuel you removed from the amount of fuel originally in the tank to calculate the amount of fuel now in the tank.

6. Change the number on the Set Remaining menu to the amount of fuel that you calculated was now in the tank.

7. Press

ENTER

Note: You can also use this procedure when you add fuel to a tank. In this case, add the fuel you have added to the amount of fuel originally in the tank to calculate the amount of fuel now in the tank.

To set a low fuel alarm for a tank: 1 Press

twice, select Fuel, then select

Setup tanks.

2 On a multi-tank boat, select the tank to set

the alarm for.

3 Select Ta nk alarm and enter a fuel level

to trigger the low fuel alarm; or enter zero to disable the alarm.

13-5 Boat speed sensors

13-5-1 Selecting a boat speed sensor

The fuel calculations can use boat speeds from the GPS, or from a paddlewheel sensor or pitot sensor if these optional sensors are installed:

Paddlewheel and pitot sensors measure

the speed through the water; GPS speed is speed over ground; these sensors can give different values for Range, Economy and the fuel consumption curves (see section 13 -5- 2).

A pitot sensor is more accurate than a

paddlewheel sensor at high speeds but is not accurate at low speeds. A paddlewheel sensor is more accurate than a pitot sensor at low speeds.

When a low fuel alarm is set, the alarm’s fuel level is shown on the fuel display tank levels as a red bar. The alarm can also be set using the Alarms setup menu (see section 19-10)

To select an optional speed sensor

1 Press

twice, select Fuel, then select

Speed source.

2 To use a paddlewheel or pitot sensor,

select Water speed, otherwise select Ground speed to use GPS speed.

3 If you selected Water speed and you have

both a paddlewheel sensor and a pitot sensor:

i Press

ESC

, select SmartCraft and

select Speed type

ii Select Paddlewheel or Pitot.

Tip: You can select a different speed

sensor during a trip.

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13-5-2 Water speed and ground speed

A paddlewheel sensor and a pitot sensor measure water speed, the boat speed through the water. A GPS measures ground speed, the boat speed over the bottom of

Water speed is better for measuring the boat’s potential performance, Ground speed is better for going to a destination because it takes currents into account. To select a speed sensor, see section 13-5-1.

the water. If there is a current, then these speeds will be different, and the log, trip log, economy and range will be different, as shown below.

When the current is from ahead, ground speed is less than water speed

Water speed 10 knots

Current 4 knots

Gives a ground speed of 6 knots

Water speed 10 knots

Gives a ground speed of about 8 knots Current 4 knots at 45º

For this example: If the boat travels for one hour, uses 3 gallons of fuel per hour and has 50

gallons of fuel left:

Speed Log Economy Range

Using water speed: 10 knots 10 nm 3.3 nm / gal 165 nm Using ground speed: 6 knots 6 nm 2.0 nm / gal 100 nm

When the current is from behind, ground speed is more than water speed

Water speed 10 knots

Gives a ground speed of 14 knots

Current 4 knots

Water speed 10 knots

Gives a ground speed of about 13 knots

Current 4

knots at 45º

For this example: If the boat travels for one hour, uses 3 gallons of fuel and has 50 gallons of fuel left:

Speed Log Economy Range

Using water speed: 10 knots 10 nm 3.3 nm / gal 165 nm Using ground speed: 14 knots 14 nm 4.7 nm / gal 235 nm

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13-6 Fuel consumption curves

A fuel consumption curve shows fuel consumption (fuel used per unit of distance travelled) and boat speed as a function of engine RPM. Fuel consumption curves require engine RPM, which requires SmartCraft or diesel sensors to be installed. Fuel consumption curves are powerful tools for assessing boat performance in different conditions and for helping you to run at the most economical speed for the conditions.

13-6-1 Making a fuel consumption curve

To make a fuel consumption curve you will need to run the boat in a straight line for about 15 minutes using the engine’s full RPM range. For your first curve, choose a calm day with light wind and little current; have a typical load and a freshly cleaned hull. Later, you can make fuel consumption curves for different boat, weather or sea conditions. Compare these with your first curve to see how your boat’s performance changes with conditions.

Making a curve

1 Start running the boat in a straight line. 2 Choose a speed source for the curve (see

section 13-5-1). Normally choose Water speed to measure the boat’s potential

performance. 3 Press 4 Select Fuel consumption curve,

5 Enter the comfortable maximum RPM

twice, then select Fuel.

then select New.

you know you can achieve for the engine

rather than the maker’s value.

6 The 8120/8084 then asks you to set the

minimum RPM. Set the throttle to idle; on a multi engine boat set all engines to about the same idle RPM. Now, do not change the engine speed. Wait for about 60 seconds for the boat to stabilise, then press

ENTER

. Wait while the

fuel computer records the data.

7 The 8120/8084 then asks you to set the

throttle to achieve a target RPM. On a multi engine boat set all engines to about the target RPM. When the engine RPMs are correct, the Target RPM box will turn green.

Now, do not change the engine speed. Wait for about 60 seconds for the boat to stabilise, ensuring the Target RPM box stays green. Then press

ENTER

. Wait while

the fuel computer records the data.

8 The 8120/8084 repeats the above step

to record data up to the maximum RPM. Then the 8120/8084 asks if you want to save the curve. Select Yes. The fuel computer asks for a name for the curve. Change the default name if required. Then

ENTER

press

. The 8120/8084 stores the new

curve.

Note To interrupt making the curve at any

time, press

ENTER

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13-6-2 Managing fuel consumption curves

Renaming a curve

1 Press

twice, then select Fuel.

2 Select Fuel consumption curve.

Select Name and select the name of the

curve to rename. 3 Select Rename and press

ENTER

. Change

the name.

13-6-3 Using fuel consumption curves

Deleting a curve

1 Press 2 Select Fuel consumption curve.

3 Select Delete.

Selecting a curve

1 You must make a fuel consumption curve

2 On the Fuel display, press

3 On the fuel display, press

Note

a On a multi engine boat, keep the RPM of

b The shape of the curve depends on the

c More information about fuel consumption

Using a curve

Compare your boat’s performance now, at the current RPMs, with the boat’s performance when you made the curve. You can compare your boat’s performance now with a curve made under ideal conditions or with a curve made under similar conditions.

twice, then select Fuel.

Select Name and select the name of the

curve to delete.

before you can use it (see section 13-6-1).

, select Fuel consumption curve and select the name of the curve to use.

if necessary to select Fuel curve and display the fuel consumption curve.

all engines similar while using a curve.

type of speed sensor you selected when making the curve (see sections 13-5-1 and 13 -5) .

curves is available in NAVMAN’s Diesel flow

sensors installation and operation manual.

Information in a curve A RPM of the boat now. For a twin engine

boat, the RPM is the average of the two RPMs.

B Red curve: boat speeds at different

RPMs recorded when you made this fuel consumption curve.

C Red marker: the boat speed now. This

marker is below the red curve, showing that the boat speed now at this RPM is less than when you recorded the curve.

D Blue curve: fuel consumption at different

RPMs recorded when you made this fuel consumption curve.

E Blue marker: the fuel consumption now.

This marker is below the blue curve, showing that the fuel consumption now at this RPM is better than when you recorded the curve.

F If the blue curve has a dip, then running

the boat at this RPM will give the best speed for the least fuel consumption.

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13-7 C alibration

Calibrate petrol/gasoline fuel flow sensors during installation, or if the fuel readings seem inaccurate and the other troubleshooting suggestions do not help (see Appendix B troubleshooting).

Note

SmartCraft fuel sensors and NAVMAN

diesel sensors are factory calibrated and should never need recalibrating.

On a multi engine boat, calibrate each

engine’s sensor. This can be done at the same time with a portable tank for each engine or at different times using one portable tank.

Calibrating a sensor requires accurate

measurement of the fuel consumption. This is best done using a small portable tank. At least 4 gallons (15 litres) of fuel should be used to ensure an accurate calibration.

It is often very difficult to fill underfloor

tanks to the same level twice due to air pockets, so the more fuel used, the more accurate the calibration.

To calibrate the sensor(s): 1 Record the level of the fuel in the tank(s). 2 Connect the portable tank(s) to the engine

through the fuel sensor(s).

3 Run the engine at normal cruising speed

until at least 4 gallons (15 litres) of fuel has been used per engine.

4 Check the actual amount of fuel used per

engine by refilling the portable tank(s) to the original level and noting the reading(s) of the fuel dispenser’s gauge.

5 Press

twice, select Fuel, then select

Setup engines.

6 On a single engine boat, select

Calibrate and change the displayed value to be equal to the reading of the fuel dispenser’s gauge, then press

ENTER

On a multi-engine boat select the engine.

Select Calibrate and change the displayed value to be equal to the reading of the fuel dispenser’s gauge, then press

ENTER

. Repeat for the other engines.

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14 Tides window

The tides window is available on Chart cards. The tides window shows tide information at a tide station for the selected date.

CAUTION

The tides window requires the local time offset to be set to work correctly (see section 19-14)

To show the tides window for the tide station nearest to the boat, press then select Tides.

To go to the tides window for any tide station:

The tides window shows data for the chosen date

DISPLAY

, select More,

E G

D F D

1 From the chart window, press

and

select Find. 2 Select Tide stations. 3 A list of tide stations are displayed. Select

the tide station to display. The chart

redraws with the tide station centred.

4 Press

and select Chart info.

5 Select Tide height.

Choosing the date of the tide chart

1 From the tides window, press

. 2 Select Today, Next day or Prev day. To choose a different date from these,

select Set date, edit the date,

ENTER

press

A Tide station name and distance from boat B Current time and chosen date for display C Tide chart D Night E Dawn F Day G Dusk H Tide height I Time cursor, a vertical dotted line. Press

to move cursor sideways

NAVMAN 8120/8084 Installation and Operation Manual56

J Time of cursor and tide height at that time K Data for the chosen date L Tide height cursor, a horizontal dotted

line. Press

or to move cursor up and

down.

M Height of cursor on the tide chart N Moon phase for moon at the current time

on the chosen date

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15 User card window

A user card is an optional plug-in card that can store data files (see section 1-3). There are three types of files: waypoints, routes or a track.

To go to the user card window, press

DISPLAY

select More, then select User card.

CAUTION

1 Before using a user card, remove any

chart card and plug the user card in. When you have finished with the user card, remove the user card and replace the chart card (see section 1-3).

The user card window has:

File list

A list of the files on any user card in the Instrument. If there are more files than will fit on the window, press

or to scroll up or

down a page at a time.

Waypoints, Routes

The number of waypoints and routes currently in the Instrument.

Track 1 to Track 5

The number of points in tracks 1 to 5 currently in the Instrument.

Note:

1 To save Instrument data onto the user

card, use the Save command (see below).

2 Data stored on the user card and shown

on the file list is not available to be used by the Instrument until loaded into the Instrument with the LOAD command (see below).

Saving data to the user card

This saves all the Instrument’s waypoints, all the Instrument’s routes or one of the Instrument’s tracks to one file on the user card.

1 Press

and select Save. 2 Select Waypts, Routes or Tracks. 3 For Tracks, select the track number to

save.

4 The new file is created. Change the name

if required. The new file appears in the file list.

Loading data from the user card to the Instrument

This loads one file from the user card to the Instrument:

A waypoints file: The new waypoints are

added to any existing waypoints in the Instrument. If a new waypoint has the same name as an existing waypoint but has different data, the Instrument displays both waypoints. Select:

Skip: Do not load the new waypoint. Replace: Load the new waypoint and

replace the existing one.

Skip all: Do not load any new

waypoints which have the same names as existing waypoints.

Rplc all: Load all new waypoints

which have the same names as existing waypoints; the new waypoints replace the existing waypoints.

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A routes file: The new routes are added

to any existing routes in the Instrument. If a new route has the same name as an existing route but has different data then the Instrument asks which route to keep.

A track file: The new track will replace the

existing track in the Instrument. To load a file to the Instrument: 1 Select the file to load. 2 Press

and select Load.

Deleting a file from the user card

1 Select the file to delete. 2 Press 3 Select

and select Delete.

Yes to confirm.

Rereading the file information

This reads the file names from the user card and displays them. Reading does not load any file data into the Instrument. You should not need to do this.

1 Press 2 Select Read.

and select Card.

Formatting the user card

Formatting prepares a user card for use. Format the card if there is an error message saying that the card is not formatted. Any data files on the card are deleted.

1 Press

and select Card. 2 Select Format. 3 Select Yes to confirm.

WAR NI NG

Do not format a chart card.

Sorting the file names

This sorts the displayed file names.

1 Press 2 Select sort by Name, Type or Time.

and select Sort.

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16 AIS

AIS is short for Automatic Identification System. The International Convention for Safety of Life At Sea (SOLAS) requires all vessels greater than 300 tons and all passenger vessels to be equipped with AIS Transponders. All vessels equipped with AIS permanently broadcast via one or more of the two dedicated VHF channels. This transmission may include information about the vessels MMSI-number, its call sign, name, position, course, heading, speed, rate of turn and type of vessel.

This unit can receive and display AIS information when connected to an AIS

16-1 Viewing AIS Vessels

A typical AIS window shows:

receiver. Available AIS vessels transmitting in the local area are shown on the chart when this feature is enabled.

The following AIS receivers are supported by this unit:

• Comar SLR200 (external GPS).

• Weatherdock Two Channel AIS Receiver

“EASY AIS”, Part No. 5-A-013 (external GPS).

• NASA Marine AIS Engine 2 channel

MultiPlex Receiver (external GPS).

Other AIS receivers may work but have not been tested with this unit.

To enable AIS from the system menu check the AIS box. (see section 16-3)

A AIS Vessel B Dangerous Vessel C Projected Course D Data Box E Range Rings

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When the cursor is placed over an AIS vessel for at least two seconds, a data box appears at the bottom of the window with information about the AIS vessel.

For complete AIS information of the AIS vessel place the cursor over an AIS vessel for at least two seconds and press

Press either information.

or to clear the

16-2 Dangerous Vessels

The 8120/8084 calculates the time of closest point of approach (TCPA) and closest point of approach (CPA) for each AIS vessel.

This is used to determine potential dangerous vessels. If the TCPA and the CPA is below the trigger values then it will be considered dangerous. (See section 19-8 for setting the dangerous vessel alarm)

16-3 AIS Windows

To go to the AIS windows, press , select

More, select AIS, then press or to select

one of the two windows: Vessels or Safety msgs (rx).

If there are more items than will fit on the window, press

or to see the others.

A dangerous vessel is indicated on the chart by a red circle around the icon.

TCPA 15 min

CPA 0.5 nm

Vessels

This is a sorted list of vessels currently being received by the AIS receiver. The maximum number of vessels that the system will support is 250. Once maximum is reached, vessels furthest away from the current location will be replaced. A vessel will be removed from the list if no information is received within 6 minutes from the last message.

Displaying an AIS vessel on the chart

1 Press 2 Press

to select a vessel.

and select Display. The Instrument switches to chart window, with the selected vessel position in the middle.

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Displaying Full AIS Details

1 Press 2 Press

This window displays all information for

to select a vessel.

and select More Info or

press

the selected AIS vessel provided by the AIS receiver.

Sorting Vessels

Press , select Sort and select one of

the options.

This sorts the list based on the chosen

category.

Safety msgs (rx)

Safety msgs (rx) are broadcasted messages received by the AIS receiver. This window displays the date and time of message received, MMSI of AIS vessel that broadcasted the message, and the message itself. Safety msgs (rx) list will store up to 10 messages. The oldest message is replaced when the list is full.

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17 DSC/Buddy track windows

Buddy track requires an optional NAVMAN DSC VHF radio to be installed. Buddy track tracks other boats which have DSC radios connected to their GPS receivers by NavBus and are in VHF range. For information on setting up and using the VHF radio for buddy track, see the radio’s operation manual.

17-1 The windows

Distress

Boats that have sent DSC distress messages and their positions.

When your DSC radio receives a distress message, the Instrument creates a distress waypoint at the boat position. Distress waypoints have default names like DSTRSS01. The Instrument displays a Distress warning.

Select:

OK to return to what you were doing. Display to switch to Chart and display

the position of the boat sending the distress message.

Poll

Boats you have manually polled on the VHF radio, and their position at that time.

To go to the DSC windows, press More, then press

or to select one of the

DISPLAY

, select

three windows: Distress, Poll or Buddy track. If there are more items than will fit on the

window, press

or to see the others.

Buddy track

Buddy boats from your DSC radio. The radio regularly calls the boats and updates their positions.

Boat positions

The boat positions on the Instrument can differ from the true boat positions:

Distress: The position is the distress

waypoint, which is where the boat was when it sent the distress message.

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Polled boats: The position is where the

boat was when you last polled the boat.

Buddy track: The position is where the

boat was when your radio last polled the boat.

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17-2 Using the windows

Displaying a boat on the chart

1 Press or to select a boat. 2 Press

and select Display. The Instrument switches to chart window, with the selected boat position in the middle (see Boat positions above).

Going to a boat

1 Press or to select a boat. 2 Press

and select Goto. The Instrument starts navigating to the boat’s position (see Boat positions 17-1).

Creating a waypoint

Polled and buddy track boats are not waypoints. To create a waypoint at the position of a polled boat (see Boat positions above):

1 Press 2 Press

or to select a boat.

and select Create waypoint. Edit the waypoint data if

required (see section 6-2-7).

Editing a waypoint

A distress message creates a waypoint for the boat or you can create a waypoint at a polled boat’s position. To change the data of these waypoints:

1 Press 2 Press

or to select a boat.

and select Edit waypoint. Edit the waypoint data if required (see section 6-2-7).

On a chart window:

A Distress boats are distress waypoints B Buddy track boats are buddy symbols

Deleting a boat

At the Distress or Poll windows: 1 Press 2 Press

or to select a boat.

and select Delete. The boat is deleted from that window. Delete any boat waypoint manually (see section 6-2-5).

Buddy track boats automatically disappear from the Buddy track window when your DSC radio can not pick up their signal.

Deleting all boats

At the Distress or Poll windows: 1 Press 2 Press

or to select a boat.

and select Delete all. All boats are deleted from that window and any boat waypoints are deleted.

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18 Radar

Radar is the Radio Detection And Ranging system. Radar functions require an optional NAVMAN radar system to be installed. Three radar systems are available; 2 kW, 4 kW, or 6 kW.

When the radar is operating, the scanner transmits powerful microwave radio pulses which are reflected back from any solid objects such as land masses or other boats. These objects are called targets and are shown on the radar window.

18-1 Radar window

The scanner rotates through 360° so the radar window shows all of the area around your boat within the range of the scanner, producing a map-like display called the PPI (Plan Position Indicator).

Typically, your boat is in the centre of the radar window with concentric range rings surrounding it. The range rings help you to quickly estimate the distance to various targets.

If you prefer to view the radar overlaid on the chart screen see section 3-2-7.

The radar window shows: A Distance between each range ring (in this

example, 1/8 nautical mile)

B Range of radar (in this example, shown in

large digits)

C Radar rotation (in this example, North Up) D Radar motion mode (in this example,

Relative Mode)

E Cursor F Distance and bearing to the cursor from

the vessel position

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G Compass ring H Range ring I North line (blue) J Heading line (white) K The bearing (in Relative, True, or Magnetic

mode)

L Echo Expansion setting M Interference Rejection setting

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18-2 Radar modes

There are four radar modes:

• Disabled. This saves on power consumption and magnetron usage. If the radar is disabled, it has to warm up and enter standby mode before it can start transmitting.

• Warming. The radar on and is warming up. This can take up to 90 seconds, depending on your scanner type.

18-3 Enabling the radar functionality

When the radar is enabled, it will turn on, warm up, and enter standby mode. The different radar modes are explained in Section 18-2.

To enable the radar functionality: 1 Press

twice to display the Setup

menu, then select

System.

18-4 Selecting standby mode or transmit mode

You can quickly change between these two modes.

• Standby. The radar is on and is warmed up. It is ready to start transmitting immediately.

• Transmitting. The radar is actively sending and receiving microwave radio pulses. An open array will be rotating.

If you want to save on power but be able to start transmitting immediately, use standby mode.

2 Set Radar to

3 The radar immediately turns on and enters

warm-up mode. A message shows how long this will take.

4 When the warm-up period is complete,

the radar enters standby mode and is ready to transmit. To start the radar transmitting, see Section 18-4.

1. From the radar window, press set the Transmit option to mode) or

(standby mode).

and

(transmit

18-5 Disabling the radar functionality

1 Press

2 Set Radar to

twice to display the Setup

menu, then select

System.

18-6 Adjusting the quality of the radar window

Common problems that can degrade the quality of the radar window include:

• sea clutter

• rain clutter

• false echoes (sometimes called ghost echoes) and background noise

• side lobe patterns (false echoes that appear as an arc or a broken arc)

NAVMAN 8120/8084 Installation and Operation Manual 65

3 A warning message appears. If you are

sure that you want to disable the radar functionality, select

Yes.

4 The radar enters disabled mode

immediately.

• shadows (blind spots)

• multiple echoes off the same object

• incorrect threshold setting If the radar is installed at a suitable height

and in a suitable location on your boat, side lobe patterns and shadows (blind spots) caused by obstructions such as funnels or masts will be minimized. If you are having

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problems with these, you may need to relocate the scanner. Consult the Installation Guide for your NAVMAN scanner or talk to your dealer or installer.

Multiple echoes off the same object are most likely to occur when you are close to a large target and are usually only a temporary nuisance.

You can adjust the radar to reduce the effects of sea clutter, rain clutter, and interference from other radars. You can also change the gain mode setting and the gain level setting to help reduce false echoes.

1 From the radar window, press

select

Presentation.

2 Select

Adjust Radar and press

ENTER

then

18-6-1 Changing the gain mode

Use the radar gain mode to specify whether you want to adjust the radar gain yourself or have it adjusted automatically.

To change the radar gain mode: 1 From the radar window, press

select

Adjust Radar.

2 Select

Gain Mode. There are three

choices:

• Manual. Adjust the radar gain yourself

to suit your local conditions and preferences.

• Auto. The radar gain is adjusted

automatically.

• Range rider. Select this to adjust the

radar gain yourself for a particular radar range, then have those settings stored and automatically re-used whenever you operate at that range again.

then

18-6-2 Changing the gain level

Use the radar gain level to adjust the sensitivity of the radar receiver. Ideally, the radar gain level should be set so that background noise is just visible on the radar window.

If the radar gain level is too low, weak echoes won’t be shown. If the radar gain level is too high, strong echoes will be difficult to see amongst the large amount of background noise.

(If the radar Gain Mode is set to Auto and you adjust the gain level manually, the Gain Mode is changed to Manual.)

To change the radar gain level: 1 From the radar window, press

select

Adjust Radar.

2 Select

Gain Level then use and

then

to decrease or increase the setting.

18-6-3 Changing the sea clutter mode (Manual mode)

Sea clutter usually appears as confusing, random signals close to your boat on the radar window.

High waves that can reflect the radar signal will produce the maximum amount of sea clutter.

You can change the sea clutter mode yourself or have it changed automatically to compensate for the sea conditions.

To change the sea clutter mode: 1 From the radar window, press

select

Adjust Radar.

2 Select Sea Clutter Mode. There are

four choices:

• Manual. Adjust the sea clutter setting yourself.

• Harbour. The sea clutter setting is adjusted automatically to suit a harbour environment.

• Offshore. The sea clutter setting is adjusted automatically to suit an offshore environment.

then

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• Range Rider. Adjust the sea clutter setting yourself for a particular radar range, then have those settings stored and automatically re-used whenever you operate at that range again.

18-6-4 Changing the sea clutter level

If the sea clutter level is set too low, a lot of sea clutter will be displayed. If the sea clutter level is set too high, small targets may not be shown in the radar window.

If the sea clutter mode is set to Harbour or Offshore, and you adjust the sea clutter level manually, the sea clutter mode changes to Manual.

If you are in Range Rider mode when you adjust the sea clutter level, the sea clutter mode does not change to manual but the setting is stored and used automatically whenever you use the same range again.

To change the sea clutter level: 1 From the radar window, press

select

Adjust Radar.

2 Select

Sea Clutter Level then

use

and to decrease or increase the

setting.

then

18-6-5 Changing the rain clutter

Rain clutter consists of random dots that can merge into badly-defined echoes on your radar screen.

The random signals are returned from rain, hail, sleet, or snow and can result in a confusing display.

If the rain clutter is set too low, there will be excessive rain clutter displayed whenever it’s raining. If the rain clutter is set too high, very large targets such as the coastline will appear to be hollow.

To change the rain clutter setting: 1 From the radar window, press

select

Adjust Radar.

2 Select

Rain clutter then use

and

to decrease or increase the setting.

then

18-6-6 Changing the threshold level

Use this to define the threshold level of the weakest echo that you want to show on the radar screen. The threshold level is shown as a percentage.

100% is the maximum threshold level, meaning that only the strongest echoes are shown. 0% is the minimum threshold level, meaning that all echoes are shown.

To change the threshold level: 1 From the radar window, press

select

Presentation.

2 Select

Threshold then use and

to decrease or increase the setting.

then

18-7 Changing the echo expansion setting

If you have several small targets in view and want to make them easier to see, use the echo expansion option. Note that the resolution decreases as the target size increases, so use this option only when target detection and visibility is more important that the quality of the display.

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To change the echo expansion setting: 1 From the radar window, press

select

Presentation.

2 Select

Echo Expansion. There are

three choices:

• Off. No echo expansion.

• 1. Targets expanded x 2.

• 2. Targets expanded x 3.

then

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18-8 Turning the target trails on or off

If you turn the target trails on, each target leaves a 30 second trail on the radar screen. You cannot change the length of the target trail.

If you turn the target trails off, the targets do not leave trails.

Note that if the radar motion mode is set to true, stationary targets won’t leave a trail. If the radar motion mode is relative, any target that is moving relative to your boat will leave a trail.

18-9 Using the VRM/EBL

Use one, or both of the VRM/EBL (Variable Range Markers/Electronic Bearing Lines) to quickly find the precise range and bearing of a target.

A VRM can be fixed or floating. Use the VRM to find the range (distance) to the target.

• A fixed VRM is shown as a thin, dashed, circle centred around your boat. Use this to find the distance of a target from your boat.

• You can move the centre of the VRM away from your boat; for example, to measure the distance between two islands. This is called a floating VRM.

The EBL is shown as a thin, dashed line extending from the centre of the VRM to the edge of the radar window. Use the EBL to find the bearing of the target.

1 From the radar window, press

select VRM/EBL.

then

NAVMAN 8120/8084 Installation and Operation Manual68

To change the target trails setting: 1 From the radar window, press

select

Presentation.

2 Set the

Target trails option to

(target trails are on) or

then

(target trails are

off).

18-9-1 Finding range and bearing with a fixed VRM/EBL

1 From the radar window, press

select

VRM/EBL.

2 Select

VRM/EBL then 1 (VRM/EBL 1) or 2

(VRM/EBL 2).

3 Set Enable to

to show the VRM and EBL

on the radar window (or

4 Select EBL reference if you want to change

the EBL bearing reference. There are two choices:

• °R shows the EBL bearing relative to your boat’s head.

• °M/°T shows the EBL bearing relative to magnetic North or true North.

5 Select

Adjust to adjust the positions of

the VRM and the EBL so that you can align them with the target. Use:

•

and to decrease and increase the radius of the VRM until it touches the target to measure the range.

•

and to move the EBL until it touches the target to measure the bearing.

6 The range and bearing of the target is

shown at the bottom of the screen.

7 If you want to hide (or change the settings

for) the range rings, North line, and/or heading line, press

to hide them).

then select

then

Radar.

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8 To clear the VRM/EBL display, press ESC

and repeat steps 1 and 2. Then set Enable to

If you want to find the range and bearing of another target, repeat the sequence using the other VRM/EBL. This is shown in a different pattern.

18-9-2 Finding range and bearing with a floating VRM/EBL

If you move the centre of a VRM away from your boat it is called a floating VRM. Use this to measure the range and bearing between two locations on the radar window, such as a headland and a buoy.

1 From the radar window, press MENU then

select VRM/EBL.

2 Select VRM/EBL then 1 (VRM/EBL 1) or 2

(VRM/EBL 1).

3 Set Enable to

on the radar window (or

4 Select EBL reference if you want to change

the EBL bearing reference. There are two choices:

• °R shows the EBL bearing relative to your boat’s head.

• °M/°T shows the EBL bearing relative to magnetic North or true North.

to show the VRM and EBL

to hide them).

5 Select

Set centre to move the VRM

and EBL centre away from your boat. Use the arrow keys to move the centre so that it is aligned over the first location.

6 Press

ENTER

to save the new centre

position, then press

and reselect the

VRM/EBL.

7 Select

Adjust to adjust the positions of

the VRM and the EBL so that you can align them with the second location. Use:

•

and to decrease and increase the radius of the VRM until it touches the second location to measure the range.

•

and to move the EBL until it touches the second location to measure the bearing.

8 The range and bearing of the target is

shown at the bottom of the screen.

9 If you want to hide (or change the settings

for) the range rings, North line, and/or heading line, press MENU then select Radar.

10 To clear the VRM/EBL display, press ESC

and repeat steps 1 and 2. Then set Enable to

If you want to find the range and bearing between two other locations, repeat the sequence using the other VRM/EBL. This is shown in a different pattern in the radar window.

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18-10 Changing the PPI position

You can move the PPI (Plan Position Indicator) centre to a different location if you are in Relative motion mode. (If you are in True motion mode, the radar automatically positions the PPI centre.)

To change the PPI position: 1 From the radar window, press MENU then

select Position.

2 There are three choices:

• Centre. The PPI centre is in the centre of the radar window so that all other objects move relative to your boat.

18-11 Using the radar guard zones

You can set one or two radar guard zones and alarms to notify you when a target enters or exits a specified area around your boat.

You can customize the size and shape of the radar guard zones and set up alarms.

1. From the radar window, press MENU then select Guard zone.

18-11-1 Turning a radar guard zone on or off

Two radar guard zones are available. You can turn either or both on or off.

To turn a radar guard zone on or off: 1 From the radar window, press MENU then

select Guard zone.

2 Select Zone. There are two choices:

• 1 selects radar guard zone 1.

• 2 selects radar guard zone 2.

• Look Ahead. The PPI centre is positioned so that the radar window is offset from the centre to give you the maximum view ahead.

• Set. Offset the PPI centre in the radar window. (This works only when you are using relative motion (RM) mode). Use the arrow keys to move the PPI centre to the new position then press confirm. The new position must allow most of the radar sweep to appear on the radar window; if it doesn’t, the PPI centre will be moved as close as possible to the desired position.

ENTER

18-11-2 Displaying the area covered by a radar guard zone

1 From the radar window, press MENU then

select Guard Zone.

2 Select Zone then radar guard zone 1 or

radar guard zone 2.

3 Set Enable to

zone) or

(show the radar guard

(hide the radar guard zone).

18-11-3 Change the setting for a radar guard zone alarm

When a radar guard zone is on, the guard zone alarm is set automatically but you can change the setting to suit your preferences.

1 From the radar window, press MENU then

select Guard Zone.

2 Select Zone then radar guard zone 1 or

radar guard zone 2.

3 Select Alarm preference. There are three

choices:

• Enter sounds the alarm only when a target enters the radar guard zone.

• Exit sounds the alarm only when a target leaves the radar guard zone.

• Both sounds the alarm when a target enters or leaves the radar guard zone.

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18-11-4 Adjusting the boundaries of a radar guard zone

To adjust the boundaries and change the area that is covered by a radar guard zone:

1 From the radar window, press MENU then

select Guard Zone.

2 Select Zone then 1 (radar guard zone 1) or

2 (radar guard zone 2).

3 Select Adjust to display the current

boundaries of that radar guard zone. The following information is also shown in the top left corner:

• Guard Zone The number shows the radar guard zone that is selected.

• Sector or Circular The shape of the radar guard zone.

• INR The distance between the inner boundary and your boat.

• OUR The distance between the outer boundary and your boat.

• WDT The angular width of the radar guard zone (in degrees).

• BRG The bearing of a line drawn from your boat through the centre of the radar guard zone (in degrees).

4 Use < and > to select the parameter to

change.

5 Then use ^ and v to change the parameter.

18-11-5 Adjusting the sensitivity of the alarm

You can set the sensitivity of the alarm for the radar guard zones, to define the size of the target that will trigger the alarm. The size of target is shown as a percentage.

100% is maximum sensitivity, meaning that very small targets will trigger the guard zone alarm. 0% is minimum sensitivity, meaning that only very large targets will trigger the alarm.

The same sensitivity setting is applied to both of the radar guard zones if both are turned on.

To set the alarm: 1 From the radar window, press MENU then

select Guard Zone.

2 Select Zone then select 1 (radar guard

zone 1) or 2 (radar guard zone 2).

3 Select Alarm sensitivity then use < and >

to decrease or increase the setting.

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19 Setting up the 8120/8084

The 8120/8084 has a number of advanced features which are set up through the setup menu. We recommend that you become familiar with the operation of the unit using the default settings before making any changes in these menus.

To go to a setup option menu, press (8120 only) or press

twice, to display the

SETUP

setup menu, then select an option.

System Setup (see section 19-1)

Sonar Setup (see section 19-3) Radar Setup (see section 19-4) GPS Setup (see section 19-5) Fuel Setup (see section 19-6)

Track Setup (see section 19-7) AIS Setup (see section 19-8) Logs Setup (see section 19-9 ) Alarms Setup (see section 19-10) Units Setup (see section 19-11) Comms Setup (see section 19-12) Calibrate Setup (see section 19-13) Time Setup (see section 19-14) Favorites Setup (see section 19-15) Simulate Setup (see section 19-16)

Note:

1 The Setup menu options are explained in

the following sections.

2 Section 2-1 describes how to set or change

data in the setup menus.

3 The setup data available will depend on

the optional sensors and instruments installed.

Chart Setup (see section 19-2) Chart General Setup (see section 19-2) Chart Water Setup (see section 19-2) Chart Land Setup (see section 19-2) Chart Other Setup (see section 19-2)

See the SmartCraft Gateway Instalation and Operation Manual

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19-1 Setup > System

Press

twice, then select System:

Language

Select the language for the windows. The options are: English, Italian, French, German, Spanish, Dutch, Swedish, Portuguese, Finnish and Greek.

Tip: In case you can’t read the current language, the language setting is found at the top of the system menu.

Backlight

Select the backlight level for the keys and display (see also section 2-3)

Night mode

Night mode sets the palette for all windows

Normal palette, for daytime All windows have a palette optimized for

night time.

See also section 2-3. To change only the chart palette, see section 19-2.

Beep volume

Select the beep volume for key presses.

Auto power off

See section 2-2.

Factory reset

This option returns all of the Instrument settings (except the language, waypoints and routes) to the default factory settings shown on the setup menus.

About

The about window shows:

• The software version and date.

• The world chart version.

• Any card fitted.

• The number of waypoints, routes and tracks you have stored.

• Connector wiring information.

In the unlikely event of having to contact a NAVMAN dealer for service, quote the software version number and date.

Sonar

Disable any sonar transducer and disable

sonar functions.

A sonar transducer is fitted. Enable sonar

operation.

See section 19-3.

Radar

No appropriate Radar system is fitted.

Disable RADAR.

An appropriate Radar receiver is fitted.

Enable AIS.

See section 19-4.

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SmartCraft

No SmartCraft gateway is fitted. Disable

SmartCraft functions.

SmartCraft gateway is fitted. Enable

SmartCraft operation.

See section 20-9.

AIS

No appropriate AIS receiver is fitted.

Disable AIS.

An appropriate AIS receiver is fitted.

Enable AIS.

See section 19-8.

19-2 Setup > Chart

Press

twice, then select Chart:

Buddy track

No appropriate NAVMAN DSC VHF radio

is fitted. Disable Buddy track.

An appropriate NAVMAN DSC VHF radio

is fitted. Enable Buddy track.

See section 20-11

Rotation

The options for chart rotation are: North up: North is always at the top of

the chart window.

Track up: The chart is rotated so

that the boat direction is to the top of the window. This option is useful for navigating narrow harbours or rivers. The Instrument asks for a course deviation resolution; this is how much the boat direction needs to change to make the chart redraw.

NAVMAN 8120/8084 Installation and Operation Manual74

Tip: If the chart redraws too

frequently, increase the course deviation setting.

Course up: This option is only available

if the boat is navigating to a destination. The chart is rotated so that the plotted course to the destination is vertical.

Page 75

Palette

Select the color scheme for the LCD window. The options are:

Normal Sunlight: Brighter colors, more visible in

sunlight. Night: Reversed colors for night, to

preserve night vision.

Map datum

Instrument GPS positions are based on a worldwide reference (datum) known as WGS

84. Most paper charts are based on WGS

84. However, some paper charts are based on other datums In these cases, the latitude and longitude coordinates of objects on the Instrument chart window are different to the latitude and longitude coordinates of these objects on the paper chart. This applies to all objects, such as the boat, waypoints, tracks, lines of latitude and longitude and cartographic features such as land, rocks, buoys and depth contours.

Use Map datum to select the Instrument map datum to match the datum of the paper chart. Then, the latitude and longitude coordinates of objects displayed on the Instrument will change to match the corresponding coordinates on the paper chart.

Setting map datum

1 In the Chart setup menu, select Map

datum.

2 Select the map datum for the paper chart

you are using.

3 If you select a datum other than WGS 84

the Instrument asks if you want to apply the NMEA datum offset (see below).

WAR NI NG

When you change to a chart with a different datum, change the Instrument map datum again.

NMEA datum offset

If you select a map datum other than WGS 84, the map datum offset can be applied to latitude and longitude coordinates sent on the Instrument NMEA output:

Latitude and longitude coordinates displayed on any NMEA repeater do not match the coordinates on the Instrument. Latitude and longitude coordinates broadcast on any NMEA VHF transmitter will be the same as the coordinates on a WGS 84 chart.

Latitude and longitude coordinates displayed on any NMEA repeaters match the coordinates on the Instrument. However, latitude and longitude coordinates broadcast on any NMEA VHF transmitter will be slightly offset from coordinates on a WGS 84 chart.

WAR NI NG

Map shift is for eliminating minor offsets. It should not be used if the correct datum is available. Use map shift with caution: incorrect application will cause incorrect boat positions.

Map shift

Some charts have consistent position errors. To correct this, apply a map shift. After a map shift:

The positions of cartographic features

(such as land, rocks, buoys and depth contours) move on the Instrument chart window to where they should be.

The positions of the boat, waypoints,

tracks, and lines of latitude and longitude on the Instrument chart window remain unchanged.

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Applying a map shift

1 Move the boat to a known point on the

chart, for example a marina berth.

2 In the Chart setup menu, select

Map shift.

3 Move the cursor to the position on the

chart where the boat actually is. 4 Press 5 Press

and select Set.

ESC

to set the new map shift.

Clearing the map shift

Clearing the map shift removes any map shift from the cartographic features on the Instrument chart window.

1 In the Chart setup menu, select

Map shift. 2 Press 3 Press

and select Clear.

ESC

The boat will now be displayed at its actual location.

General submenu

Plotter mode Only scales available on the chart card can be displayed.

Mixing levels Mixes lower detail charts with higher detail charts on chart boundaries.

If you press or to select a chart scale which is not available, on the chart card, the chart window will change to this scale but will only display the boat position and track (if enabled). The rest of the window is white with black crosshatch lines and no chart information is displayed. This is useful to zoom to a small scale to track small boat movements or if there is no detailed chart for an area.

:Lower detail chart is not shown.

:Lower detail chart shown; this is slower to redraw.

Anticlutter

Hides some less important names and icons when they overlap to make the chart clearer. Value added data Projected course The Instrument can estimate the course after a given time, based on the current speed and heading

CDI scale See Appendix C. The options are 0.05, 0.1, 0.2, 0.5, 1.0, 2.0, 4.0 and 10.0 distance units. Lat/lon grid Boundaries Displays boundaries around areas where more detailed chart coverage is available: Auto shows the

Text/icon size Select the size of chart text and icons.

Names and icons shown. Note: this is independent of the change in detail shown at diﬀ erent zoom levels.

Non marine chart data shown

(see section 3-4). The options are 2 minutes, 10 minutes, 30 minutes, 1 hour, 2 hours or Oﬀ .

displays a latitude and longitude grid.

next four detail levels; On shows all.

Water submenu

Water features displays nature of sea bed (for example, M shows areas of mud)

Bathymetric[s] lines Displays underwater depth contours between Bath & dndgs min

Spot soundings Displays underwater depth contours between Bath & dndgs min

Bath & sndgs min The minimum depth for Bathymetrics and Spot soundings. Bath & sndgs max The maximum depth for Bathymetrics and Spot soundings. Tidal stream

and tide station icons.

and max.

displays dynamic tide ﬂ ows: arrows on a chart showing the present tide stream and orientation (requires a GPS ﬁ x and an NT-MAX card)

Land submenu

Land features displays land features, for example regions, rivers, roads, railways, airports. Land elevation

displays land contours, shaded like depths (requires an NT Max card)

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Other submenu

Waypoints Displays waypoints: Hide all only displays waypoints on any selected route; Selected displays

Names Lights Light House window options: Off hides all light indicators (the icon still shows); No sectors

Nav-aids Displays signals (fog, radar, radio stations) and buoys. Int and US select the icon format; Simpl

Attention areas

waypoints with their display option set to Icon or I+N (Icon and Name); Show all displays all waypoints (see section 5).

displays place names.

hides sectors; On shows sectors; Animated activates light animation. Note: with light animation enabled, animation only operates chart.

draws simpler icons.

displays attention area boundaries and information icons ; attention areas are important areas, such as restricted anchorages or shallow areas.

19-3 Setup > Sonar

Press

twice, then select Sonar:

Frequency

There is a choice of: 200 kHz, 50 kHz and Mixed. For information about selecting a

suitable frequency for the water conditions, see section 9-3.

Scroll speed

Use this to set the scroll speed on the display. There is a choice of: Very Fast, Fast, Medium, Slow and Pause. The depth of the water also affects the speed of the display.

Faster scroll speeds combined with a slow boat speed (typically between 2 and 6 knots) shows the most fish detail. Medium or Slow scroll speeds result in sonar information being displayed over a longer period, but with less detail (see Section 9-2).

Fish symbols

The Instrument always displays echoes from fish (fish arches, see section 9-4). If fish symbols are on, a symbol is displayed over the arch (see section 9-4). The options are:

• Off: No fish symbol is displayed.

• Fun or Normal: A fish symbol is displayed.

Fish depth labels

When this is turned on, the depth of a fish is printed next to the fish arch.

Fish filter

Use this to select the minimum fish size that will be displayed as a fish symbol and to trigger the Fish alarm. The options are: Small, Medium and Large.

Fish sensitivity

Selects the minimum strength fish echo that will be displayed as a fish symbol. Higher values will display more fish symbols.

Digit size

Use this to remove or change the size of the depth window on the sonar windows. There is a choice of: Small, Medium and Large.

Palette

Use this to select a color palette. Each color within the palette represents a different echo strength, as shown on the sonar windows.

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There is a choice of five color palettes: Black, Blue, White, Vivid and 8 color. The first four palettes display more detail, and each color covers a 1.5 dB signal range. The 8 color palette displays less detail, and each color covers a 3 dB signal range.

Interference filter

No filter, normal setting.

Filters the echo signal to remove spiky interference such as engine noise or depth sounders on nearby boats.

Noise filter

Averages the echo signal to remove rapid changes. Select Medium or High to give a smoother bottom trace–this may help to detect a deeper bottom; however these settings may also remove fish echoes. Select Off for best fishfinding.

19-4 Setup > Radar

Surface clutter filter

Use this filter to hide the surface noise. Any significant echoes (such as fish) will still be displayed.

Pulse length

This can be used to specify the length of the transmitted ultrasonic pulse. A short pulse length improves the window detail but contains less energy, therefore it does not penetrate as deeply into the water as a longer pulse.

There is a choice of Auto, Short, Medium or Long. The Auto setting is recommended.

Pulse power

This can be used to specify the power output of the transmitted ultrasonic pulse. Low power output conserves the battery and produces a clear display in shallow water.

There is a choice of Auto, Low, Medium or High. The Auto setting is recommended.

Note: This option is shown only when the radar is enabled (see Section 18-3)

1 Press MENU twice to display the Setup

menu, then select Radar:

NAVMAN 8120/8084 Installation and Operation Manual78

Rotation

The current radar rotation is shown in the top left corner of the radar screen. If COG data or heading data is not available from a compass, the radar rotation is automatically set to Head up. However, you are strongly recommended to use a good quality product (such as a NAVMAN HS02, HS03 or Autopilot) to provide heading data.

If heading data is available from a compass, the options are:

• North up works only when COG data or heading data from a heading sensor is available. North is always at the top of the radar screen. You can easily compare the radar screen to a chart in North up.

• Head up means that the radar image rotates underneath your boat, so the direction in which you are heading is pointing to the top of the radar screen.

Page 79

You can easily compare the visual view in front of your boat with the radar screen.

• Course up works only when COG data or heading data from a heading sensor is available and there is an active route. It means that your desired heading is always pointing to the top of the radar screen so that you can compare the leg bearing of the active route with the radar screen. (If you’re in Course up rotation but don’t have an active route, the radar uses Head up rotation until a route is made active.)

Motion mode

True motion mode is not available if there is no position data, and no heading or COG data. However, you are strongly recommended to use a good quality product (such as a NAVMAN HS02, HS03 or Autopilot) to provide heading data.

There are two choices:

• Relative (RM). Your boat remains in a fixed location on the radar screen and all other objects move relative to your position. (You can choose the position of the fixed location, see Section 18-10). RM is the default.

• True (TM). Your boat, and moving targets, move across the radar screen as you travel. All stationary objects remain in a fixed position. You must have position data, and heading or COG data for this option to be

available.

Interference filter

If the radar on another boat is operating at the same frequency as your radar, it can cause interference patterns on the radar window.

Interference patterns always appear in a different place with each sweep. They can be randomly scattered bright dots or dotted lines that extend from the centre to the edge of the radar window, often producing a spiral pattern. Generally, the stronger the interference, the wider the interference lines.

Use the interference rejection option to reduce both the interference patterns and the width of the interference lines.

There are four choices:

• Off. Interference rejection is off.

• Low operates the interference rejection at minimum strength.

• Medium operates the interference rejection at medium strength.

• High operates the interference rejection at maximum strength. This setting can make it more difficult to detect some targets and radar beacons. Use this setting only

when necessary.

Palette

Select the color scheme for the radar window.

Digit size

The range of the radar is shown on the radar window; for example 1/16. You can show this information in small, medium or large digits.

Range ring

The range rings and compass ring help you to quickly estimate the range and bearing of a target from your boat.

The range ring and compass ring are shown. The number of range rings and the spacing interval between them is set automatically according to the range setting. The current spacing interval is shown in the top left corner of the radar window.

Range ring and compass ring are hidden.

North line

Whatever the radar windorotation, you can always show the blue North line.

If the bearing mode is set to:

• magnetic, the North line always points to

magnetic North.

• true, the North line always points to true

North. Show the North line. Hide the North line.

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Heading line

The heading line is a white line that extends from your boat to the edge of the radar window.

Show the heading line. Hide the heading line.

19-4-1 Setup > Radar > Installation

Note: This option is shown only when the radar is enabled (see Section 18-3)

1 Press MENU twice to display the Setup

menu, then select Radar.

2 Select Installation:

Park position

If your radar has an open array and you take it out of enabled mode, the open array continues to rotate for a short distance before it finally stops. The stop position is known as the park position. You can adjust the angle of the parking position so that the open array will always stop at your preferred position; for example, facing the bow.

1 Select Park position then enter the angle

of the new park position.

Note: You may need to try a few different park positions to find the correct one. The strength of the wind will also affect the park position.

Zero bearing

Use the zero bearing alignment to rotate the radar image, one degree at a time, so that a known object dead ahead is directly under the boat’s heading marker.

This means that the radar image is aligned with the displayed chart and the compass.

An accurate bearing alignment is particularly important when the radar image is overlaid onto the chart.

Adjust this on a chart window with the radar overlay on.

1 Select Zero bearing then use the arrow

keys to enter the new bearing angle.

Zero range

The zero range is also known as the radar range offset and as the trigger delay.

If your radar window shows a blank, black circle around the centre or a solid circle of color at the centre, you need to adjust the zero range setting until this circle disappears or almost disappears. Ideally, the radar sweep should start at your boat (a radar range of zero).

To adjust the zero range setting: 1 Position your boat about 45 to 90 m (50

to 100 yards) away from and parallel to a

straight-walled jetty or similar feature.

2 Adjust the gain setting if necessary, so

that a reasonably good image of the jetty

echo is displayed on the radar window. At

this stage, the jetty echo may appear to be

bent.

3 Select Zero range then use the arrow keys

to adjust the zero range setting until the

jetty echo appears as a straight line on the

radar window.

Antenna height

The Installation Manual for your NAVMAN radar explains how to find the optimum height for your radar scanner (antenna).

Select Antenna height then enter the height of the antenna above sea level.

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19-5 Setup > GPS

Press

twice, then select GPS:

GPS Source

• NMEA: Use the external GPS antenna supplied or an external GPS or DGPS source connected via NMEA (see section 20-12).

• NavBus: Use an external GPS or DGPS source connected via NavBus (see section 20-11).

DGPS Source

Refer to section 20-5

Restart GPS

Refer to section 20-5

Static Navigation

When the boat stops or moves very slowly, the calculated GPS speed and course become erratic. Static navigation allows the erratic values to be filtered:

• 0.01 to 99.9: If the boat speed is slower than this, the speed is displayed as zero and the course stays unchanged.

• 0 (Off): The calculated speed and course are always used.

Speed and Course Filter

Waves and wind cause the boat speed and course to fluctuate slightly. To give stable readings, the Instrument calculates these values by taking several measurements and averaging them.

A lower value averages measurements

over a shorter period of time. This gives the most accurate value but has the most fluctuations.

A higher

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19-6 Setup > Fuel

Fuel functions require optional fuel flow sensors to be installed. Press

twice, then

select Fuel:

WAR NI NG

Fuel consumption can change drastically depending upon the boat loading and the sea conditions. Always carry adequate fuel for the journey, plus a reserve.

Source

Select the fuel flow sensors to use if the boat has more than one set of fuel sensors. Normally select Auto.

Num engines

Set the number of engines, or select 0 to disable the fuel functions. If there are two engines they are called port and starboard.

Num tanks

Set the number of fuel tanks. If there are two tanks they are called port and starboard.

Setup engines

If the boat has more than one engine, select Engine and select each engine in turn.

For the selected engine, you can enter:

From tank: The fuel tank the engine is connected to.

Flow filter: Most engines do not draw fuel from the tank at a steady rate. To give a stable fuel flow reading, the 8120/8084 calculates the flow by taking several measurements and averaging them. Use the Flow filter to set the period over which the fuel flow is averaged.

The Flow filter can be set from 0 to 30 seconds. Use the lowest value which gives a stable flow.Usually a value of 5 to 10 seconds will give a satisfactory result for two-stroke carburetor engines. Fuel injected or fourstroke engines may require a larger value.

This setting affects the Fuel flow and Fuel economy reading on the Fuel display but it does not affect the Fuel used reading.

Setup tanks

If the boat has more than one tank, select Tank and select each tank in turn.

For the selected tank, you can enter:

Tank size: The tank capacity. NAVMAN recommends measuring tank size by draining the fuel tank, filling it to capacity and using the fuel dispenser’s reading. Beware of air pockets, especially in underfloor tanks.

Fuel alarm: See section 13-4.

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Diesel sensors

If the boat has more than one diesel engine and has NAVMAN diesel sensors, set up the diesel sensors:

1 In the fuel setup menu, select Diesel

sensors. The display shows fuel flow and RPM for the engines.

2 Identify which line has data for a known

engine; for example vary the speed of one engine or have one engine running and the other(s) stopped.

3 Press

or to select the line with data

for the known engine. Press

ENTER

, select

the known engine’s name and press

ENTER

4 Repeat the above step for the other

engines in turn.

5 Press

ESC

Fuel consumption curve

See section 13-6.

Speed source

If both water speed and ground speed are available, select which to use for fuel calculations (see section 10-5-1).

Max fuel flow

The maximum fuel flow from a fuel tank to be displayed on an analog fuel flow gauge (see section 8)

Max RPM

The maximum engine RPM to be displayed on an analog RPM gauge. Required only if

NAVMAN diesel flow sensors are installed. Enter the maximum RPM you know you can achieve for the engine rather than the maker’s value.

19-7 Setup > Track

Press

twice, then select Track:

Tracking records and displays the boat’s course on the chart (see section 3-5). Five different tracks can be recorded: track 1 has up to 2000 points and tracks 2, 3, 4 and 5 have up to 500 points each.

Record

Off: The Instrument stops recording a

track.

1 to 5 (select a track number): The

Instrument starts recording the boat’s course into the selected track.

Display

Off: No track is shown on the chart. 1 to 5 (select a track number): The

selected track is shown on the chart.

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Plotting Interval

Select the plotting and recording interval. The options are Distance or Tim e.

Distance

Select the distance plotting interval: 0.01,

0.05, 0.1, 0.5, 1.0, 2.0, 5.0 or 10.0 distance units.

Time

Select the time plotting interval: 1, 5, 10 or 30 seconds or 1 minute.

Memory used

The percentage of memory used in the track being recorded.

19-8 Setup > AIS

Tip: Use the user card window to check the number of points recorded in each track (see section 15).

Send track

This option is included for compatibility with older units. For information, see your NAVMAN dealer.

Delete track

The data in the track selected for Record (see above) is deleted.

Note: This feature requires an AIS receiver. There are multiple methods to filter AIS

vessels that are displayed onto the charts.

Filter by Type

Vessel types that are not selected will be filtered off the chart. Default is set to all types enabled allowing all vessels to be displayed on the chart.

Filter by distance

Vessels outside the radius selected from our current position are filtered off the chart. Default value is set to 300 nm allowing all vessels to be displayed on the chart within that distance.

Filter by speed

Vessels with speed below the value selected are filtered off the charts. Default is set to 0 nm allowing all vessels to be displayed onto the chart.

Show Dangerous Only

Show only vessels that have a TCPA/CPA below the trigger values. This filter will override any other filter option.

Dangerous Vessel Alarm

When enabled an alarm will activate when both the TCPA and CPA are less than the trigger values.

Note: Even when this setting is disabled the dangerous vessels will still be indicated on the chart.

TCPA Limit

Set the Time of Closet Point of Approach limit.

CPA Limit

Set the Closet Point of Approach limit.

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Projected Course

Show the estimated course of all vessels based on their current SOG and COG.

Range Rings

Show a selectable number of range rings around the boat. The rings are drawn in multiples of the current chart scale.

19-9 Setup > Logs

Proximity Alarm

When enabled an alarm will activate when any AIS vessel is within the proximity alarm radius.

Press

twice, then select Logs:

The values can be reset independently of each other. These log values are saved when the unit is turned off.

Reset trip dist

This resets the trip distance to zero.

Reset total dist

This option resets the total distance to zero.

Reset engine hours

Use this option to reset the engine hours to zero. This can be useful after an engine service or to count the engine hours between service intervals.

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19-10 Setup > Alarms

Press

twice, then select Alarms:

For all alarms select to turn the alarm on or select

to turn the alarm off. For most alarms there is a trigger value. The alarm will sound each time the alarm value equals the trigger value.

For example, the Danger alarm will sound if the boat comes closer to a danger waypoint than the trigger value and the Anchor alarm will sound if the boat moves by more than the trigger value.

You can display the alarm status in the data header (see section 2-7-3). The alarm status shows the symbol for each alarm that is on. The symbol is normally black and turns red if the alarm triggers.

Symbol Alarm Beeper Alarm sounds when it is on and the:

Arrival radius Boat is closer to the destination or to a waypoint than the alarm trigger

Anchor alarm Boat moves by more than the alarm trigger value

XTE Boat moves oﬀ course by more than the CDI scale (see section 5)

Danger Boat comes closer to a danger waypoint than the alarm trigger value

Too shallow

Too deep

Fish 1 short beep Echo matches the proﬁ le of a ﬁ sh

Temperature

Temperature rate

Low battery

Low fuel

Loss of DGPS ﬁ x Instrument can not receive the DGPS signal (beacon, WAAS or EGNOS)

/5 sec Depth is less than the alarm trigger value

/2 sec Depth is greater than the alarm trigger value

/2 sec Temperature equals the alarm trigger value

/2 sec Rate of change of temperature equals the alarm trigger value

/2 sec Battery voltage is less than the alarm trigger value

/2 sec Low fuel remaining equals the alarm trigger value; on a multitank boat

value

you can set separate alarms for each tank (see section 13-4)

Loss of GPS ﬁ x Instrument can not receive the GPS signal (this alarm is always on)

Loss of AIS receiver communication

Dangerous vessel

NAVMAN 8120/8084 Installation and Operation Manual86

8120/8084 is no longer receiving communication from the AIS receiver (Alarm is on when AIS is enabled)

The TCPA/CPA of another vessel is less than the trigger values (see section 13)

Page 87

19-11 Setup > Units

Press

The default units are shown above.

twice, then select Units:

Distance

nm (nautical miles), mi (miles) or km (kilometers)

Distance small

ft (feet) or m (metres)

Speed

kn (knots), mph (miles per hour) or kph (kilometers per hour)

19-12 Setup > Comms

Depth

ft (feet), m (metres) or fa (fathoms)

Height

ft (feet) or m (metres)

Fuel

Litres, USGal (US gallons) or ImpGal (Imperial Gallons)

Compass

°T (True north) or °M (Magnetic north)

Tem pe ra tur e

°F (Fahrenheit) or °C (Celsius)

Wind (optional)

Requires a wind instrument: True or App (Apparent)

Note: that the units for wind speed are the speed units.

Pressure

Requires SmartCraft: kPa or psi

Baro (Barometric pressure)

Requires a NAVMAN VHF receiver with barometer connected by NavBus: InHg or mB.

Use this feature when the Instrument is connected to other NAVMAN instruments through NavBus or any compatible NMEA instrument.

Press

twice, then select Comms:

NAVMAN 8120/8084 Installation and Operation Manual 87

NMEA out

NMEA is generally used with third party instruments (see section 20-12). Select this to transmit NMEA sentences, for example to an autopilot.

NMEA data

Use this to specify which NMEA sentences will be transmitted (see section 20-12 and Appendix A).

Lat/lon dps

Select the number of decimal points used for latitude and longitude transmitted in NMEA sentences.

Page 88

NavBus

NavBus is the preferred method for connecting the Instrument to other NAVMAN instruments. Select this if the instruments are connected using NavBus.

19-13 Setup > Calibrate

NavBus Group

Use this when a group of NAVMAN instruments are connected together using NavBus, to specify a group of instruments for backlighting, if required. Then, if the backlight setting on one instrument in the group is adjusted, the other instruments change automatically. Otherwise, select 0. See section 20-11.

Press

twice, then select Calibrate:

Speed

This calibrates the speed from a paddlewheel sensor connected to the Instrument. Calibration may be required because different hull shapes have different flow characteristics. Obtain an accurate measurement of the boat’s speed from a GPS receiver; or by following another boat travelling at a known speed; or by making a timed run over a known distance.

Note: for accurate calibration:

• The speed from a GPS receiver should be greater than 5 knots.

• The speed from another paddlewheel transducer should be between 5 and 20 knots.

• Best results are achieved in calm conditions where there is minimal current (best at high or low tide).

Calibrating speed:

1 Travel at a constant, known speed. 2 In the Calibrate menu, select Speed. 3 Press

4 Press

or to change the displayed

speed to the true value.

ENTER

Speed filter

Waves and wind cause the boat speed from the paddlewheel transducer to fluctuate slightly. To give stable readings, the Instrument calculates these values by taking several measurements and averaging them. Set the Speed filter to the lowest value which gives stable readings. The range is 1 to 30 seconds or Off (0).

Temperature

The factory settings should be sufficiently accurate for normal usage. To calibrate the temperature readout, first measure the water temperature with a thermometer known to be accurate.

Use the cursor keys to display the temperature readout box, then increase or decrease the value to match the measured temperature. The temperature can be set from 32° to 99.9°F (0° to 37.7°C) with a resolution of 0.1° unit.

To change the units between °F (Fahrenheit) or °C (Celsius), see section 19-11.

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Temperature filter

Water turbulence and currents cause the water temperature to fluctuate slightly. To give stable readings, the Instrument calculates these values by taking several measurements and averaging them. Set the Temperature filter to the lowest value which gives stable readings. The range is 1 to 30 seconds or Off (0).

Keel Offset

A depth transducer measures depths below where the transducer is mounted on the boat, usually the bottom of the boat. The Instrument calculates the depths to display by adding the keel offset to all measured depths.

A Have a zero keel offset to display depths

below the transducer.

B Enter a positive keel offset to increase the

displayed depth. For example to display the total depths below the surface, enter the depth of the transducer below the surface.

C Enter a negative keel offset to decrease

the displayed depth. For example, to display the depths of clear water below the boat, enter minus the depth of the deepest part of the boat below the transducer.

Tra ns duc er ; depths measured below here

Depths measured below here

Speed range

The maximum reading to display on an analog boat speed gauge (see section 11). Choose a range suitable for your boat.

Fuel

See section 13-7, Calibrate.

19-14 Setup > Time

Press

twice, then select Tim e:

Local offset

The difference between local time and UTC (GMT). Change local offset when daylight saving time starts and ends. The range is 0 to ± 13 hours, in 30 minute steps.

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1 Select Local offset. 2 Press

or to change the offset, then

ENTER

press

Time format

The options are 24 hour or 12 hour.

Date format

The options are dd/MMM/yy, MMM/dd/yy, dd/MM/yy or MM/dd/yy.

Page 90

19-15 Setup > Favorites

See section 2-7-2.

19-16 Setup > Simulate

Simulate mode is a way of becoming familiar with the Instrument (see section 2-6).

Press

twice, then select Sim ulate:

Simulate

Turn simulate mode off Turn simulate mode on

WAR NI NG

Never have simulate mode on when the Instrument is navigating on the water.

Mode

There are two choices for Mode:

1 Normal

Simulates the boat moving from the selected start point at the given speed and heading.

The options required for Normal are:

Speed: The simulated boat speed to use. Course: The simulated course over

ground.

Note: To select the start point, go to the chart window before starting the simulation. Then:

• To start the simulation from the boat position, press

ESC

to switch to centre on

boat mode.

• To start the simulation from a different point, move the cursor to that point on the chart.

Tip: To calculate a course, use the cursor

(see section 3-2-1).

Tip: As the boat moves, vary Course to

simulate the boat moving off course.

2 Demo

Simulates a boat moving along a route and automatically displays different Instrument functions. The options required for Demo are:

Speed: The simulated boat speed to use. Route: The route to follow.

NAVMAN 8120/8084 Installation and Operation Manual90

Page 91

20 Installation

WARNING

Ensure that any holes cut are in a safe position and will not weaken the boat’s structure. If in doubt, consult a qualified boat builder.

CAUTION

Do not mount any part where it can be used as a hand hold, where it might be submerged or where it will interfere with the operation, launching or retrieving of the boat.

To help ensure proper operation, do not mount any part or cable within 0.5 m (20”) of the plane of a radar antenna or within 1 m (3 ft) of a compass or source of electrical noise, such as engines, fluorescent lights, and power inverters.

When fitting a cable, do not crush or strain the cable. Secure the cable at regular intervals. Ensure no connectors or exposed terminals are in wet area.

If the cables supplied are too long, do not shorten the cable; instead coil the cable. Most cables can be extended with NAVMAN extension cables. Do not fit more than one extension cable.

NAVMAN 8120/8084 Installation and Operation Manual 91

Page 92

20-1 Installation: What else comes with my 8120/8084?

NAVMAN GPS 1240 Antenna

GPS 1240 Antenna bottom cone

GPS 1240 Antenna gasket

GPS 1240 mounting kit

Sun cover for display unit Note: Place over display when not in use

Front Bezel Note: Fit this after installing the display unit

Power cable

Mounting bracket and locking knobs

Bracket mounting screws (5 x14 Gauge self tapping screws)

Flush mounting screws (4 x 8 Gauge self tapping screws)

NAVMAN wallet

Contains the following items:

• Flush mounting template

• LCD cleaning cloth

• Warranty card

• Quick start guide

• CD manual

• 8120/8084 Installation and operation manual

• GPS 1240 Antenna Installation and operation manual

NAVMAN 8120/8084 Installation and Operation Manual92

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Page 93

20-2 Installation: Options and Accessories

• Replacement paddle wheel.

• C-MAP™ NT-MAX, NT+ or NT chart SD cards.

• NAVMAN NavBus junction boxes simplify wiring, particularly if several instruments are connected. For more information, see the NavBus Installation Manual.

Optional sensors and instruments

External alarms: Lights or sounders in the boat to sound alarms through the boat (see section 20-4).

GPS or DGPS antenna: For GPS navigation, see section 20-5.

Sonar transducer: For depth sounding and fish finding, see section 20-6.

Fuel sensors: For fuel functions. The Instrument can use these optional fuel flow sensors, fitted to one or two engines:

• NAVMAN petrol/gasoline sensors (see section 20-7)

• NAVMAN diesel sensors (see section 20-8)

• SmartCraft fuel sensors (see section 20-9) DSC VHF radio: Tracks other boats with

GPS receivers and DSC radios and displays barometric pressure (see section 20-11).

SmartCraft: With one or two SmartCraft capable Mercury petrol/gasoline engines, the Instrument can display engine data and trim and can control troll speed (see section 20-10).

Radar: For radar functions. A NAVMAN 2 kW, 4 kW or 6 kW radar system must be installed (see section 20-10).

Other instruments: The Instrument can receive data from other instruments and send data to other instruments by NavBus or NMEA (see sections 20-11 and 20-12).

Please consult your NAVMAN dealer for more information.

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Page 94

Connections

q Sonar Sonar Transducer w Video in Video Input

(Analogue composite [NTSC-PAL])

e Comms Not Used r GPS NAVMAN 1240 GPS Antenna t Fuel/Nav - NAVMAN Fuel TXD

- Diesel Fuel TXD

- SmartCraft Gateway

y Radar NAVMAN Radar Processor

u Power/data cable

Wire Function

Black Ground: power negative, NMEA ground (Connect both black wires to ground) Brown Not Used

71 2 3 4 5 6

White NMEA out Blue NavBus Red Positive power in, 10 to 35 V DC Orange NavBus+ Yellow Auto power - Connect to red wire (positive power in) to enable Auto power No Auto power - Leave disconnected or connected to Black wire (ground) Green External Alarm output or light out, switches to ground during alarm condition, 200 mA maximum.

20-3 Installation: The display unit

Start by selecting a suitable mounting position for the 8120/8084 display unit:

• Consider the best possible position for viewing and operating the 8120/8084. This will generally be a relatively shaded area

free from obstructions.

• At least 4” (100 mm) away from the compass, at least 12” (300 mm) away from any radio transmitter and at least 4 ft (1.2 m) away from any antenna.

NAVMAN 8120/8084 Installation and Operation Manual94

• For optimum performance and reliability consider mounting the unit where it will not be unnecessarily exposed to direct sunlight, water and protected from other physical damage which could occur during rough sea passages.

• If bracket mounting chose a flat area where the display will not be subjected excessive vibration.

• Select an area with adequate clearance for cabling and access to the power source.

• Before drilling any holes ensure that the drill area is free from cables or other obstructions.

Page 95

There are two mounting arrangements:

Flush Mounting the 8120/8084

1. Attach the flush mounting template to the selected mounting position using adhesive tape.

2. Drill a pilot hole for each of the hole saw cuts shown on the template before cutting the larger hole with the hole saw.

3. Next cut all the way around the inside of the cut-out line with a saw to remove the waste material shown on the template.

4. Check that the unit fits correctly in the cut out area. Adjust the fit with a file if required.

5. Select a 2-3.5 mm 1/8” drill bit depending on hardness of material to drill. Smaller diameter holes will be needed for soft woods and larger diameter pilot holes will be required if mounting to hard materials such as fiberglass (we recommend 3.5 mm (1/8”) for fiberglass and Aluminum).

With the selected drill bit drill the 4 pilot

holes for the 8 gauge screws used to attach the unit. These are indicated on the corners of the mounting template.

6. Connect all cables to the rear of the unit before placing the unit into the console.

7. Firmly secure the unit in place with the 4 x 8 gauge self tapping screws.

Note: the 5 x 14G self tapping screws are for bracket mounting only.

8. To finish off the installation firmly clip the front bezel in place.

Bracket Mounting the 8120/8084

An alternative to flush mounting the 8120/8084 is to bracket mount the unit. This method has the advantage that the display can be easily removed when it is not in use. The display may be tilted for best possible viewing angle when bracket mounted.

Note: The mounting bracket does not allow for rotation of the unit to the left and right.

1. Use the mounting bracket as a template to mark the 5 positions of the screw holes.

2. Select a suitable drill bit (note: larger diameter pilot holes may be required if mounting to fiberglass) and drill 5 pilot holes in the marked positions.

3. Secure the mounting bracket using the 5 x 14G self tapping screws.

4. Slide the 8120/8084 into the mounting bracket and secure in place with the bracket knobs.

5. To finish off the installation firmly clip the front bezel in place.

8 gauge screws

Bezel

8120/808 4

Dash

8120/808 4

Knob

14G self tapping screws

Mounting bracket

NAVMAN 8120/8084 Installation and Operation Manual 95

Page 96

20-4 Installation: Power/data cable

The power/data cable has a black locking collar and flying leads. 1 Wire the Instrument for auto power to have the Instrument turn on with the boat’s ignition

switch or to record engine hours or if the Instrument must add up the total fuel used (for example if NAVMAN petrol/gasoline fuel sensors are installed or if SmartCraft is installed without fuel tank level sensors). Otherwise wire for basic power (for more information, see section 2-2).

Basic power

Power/data cable

Black

Auto power

When wired for Auto Power On the unit will turn on when the ignition switch is on, if you would like the unit to turn off when the ignition switch is off then set the unit for Auto Power Off (see section 2-2 and 17-1)

Red

Yellow

Black

Fuse 2A

Main switch

12/24 V DC

Black

Power/data cable Yellow

Red

Black

Fuses 2A

Ignition

Ignition switch

Main switch

12/24 V DC

2 Wire any external alarm beepers or lights. The alarm output switches to ground to sound the

alarm. If the current is more than 200 mA, fit a relay.

3 Connect the power/data cable to the black display unit connector; turn the collar to lock the

connector.

Power/data cable Red

Black

Green

External beepers or

lights

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20-5 Installation: GPS antenna

Selecting an antenna

Fit one of these GPS antennas:

• Normally use the GPS antenna supplied.

• An optional differential beacon DGPS antenna to give enhanced accuracy within range of land based differential beacons in areas where WAAS or EGNOS are not available. Such a DGPS antenna has both a GPS receiver and a beacon receiver, and it automatically applies the beacon correction to the GPS position.

• A compatible GPS or DGPS instrument or antenna connected by NavBus (see section 20-11) or NMEA (see section 20-12). In this case, the Instrument does not need its own antenna.

Note:

• To configure the Instrument for different antenna options, see section 19-4.

For more information, contact your NAVMAN dealer.

DGPS Source:

Enables or disables the satellite based DGPS correction (see section 8). The options are None or WAAS/EGNOS. Do not Enable WAAS/EGNOS outside their coverage areas or the accuracy of the position might be degraded.

WAAS covers all of the USA and most of Canada. To use WAAS, the GPS antenna must have a clear view of the sky towards the equator. EGNOS will cover most of Western Europe.

Restart GPS:

Restarts the GPS receiver, satellite reception will be lost until the receiver completes its restart and acquires the satellites. Select restart GPS and press

WAR NI NG

ENTER

MOB will not work if the Instrument does not have a GPS fix.

Installing an antenna

If an external antenna is required, install the antenna and fit the antenna cable back to the display unit. Follow the instructions in the manual supplied with the antenna. Fit an optional NAVMAN extension cable if required.

During setup, configure the Instrument for the chosen antenna, see section 19-4.

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20-6 Installation: Sonar transducer

WAR NI NG

Do not install plastic through hull transducers in solid wooden hulls. Leakage through the hull may result.

Do not install bronze transducers in metal hulls. This will cause electrolytic corrosion that may result in damage to the hull or transducer.

20-7 Installation: NAVMAN petrol/gasoline sensors

Fit the optional petrol/gasoline fuel kit following the instructions supplied with the kit.

Note:

SmartCraft engines have fuel flow sensors,

therefore NAVMAN fuel sensors are not required as well.

For dual engines, fit two kits. Wire the Instrument for auto power (see

section 20-4).

20-8 Installation: NAVMAN diesel sensors

Fit the optional diesel fuel kit following the instructions supplied with the kit. Note:

SmartCraft engines have fuel flow sensors,

therefore NAVMAN diesel sensors are not required as well.

For dual engines, fit two kits. Wire the two

diesel flow sensor cables in parallel.

Normally, power the diesel sensors

from the boat ignition switch. Then the Instrument does not need to be wired for auto power (see section 18-4).

Sonar cable

Blue

Connect the transducer to the blue Instrument connector; tighten the locking collar.

During setup a) set Sonar to

(see section 19-1)

b) set up the sonar options (see section 19-3)

During setup: a) set the fuel data (see section 19-6)

White

Fuel sensor cable

Diesel sensor cable

During setup: a) set NavBus to

(see section 19-12)

b) set the fuel data (see section 19-6)

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20-9 Installation: SmartCraft

If the boat has one or two SmartCraft capable Mercury petrol/gasoline engines, connect the Instrument to the SmartCraft engines with an optional SmartCraft gateway. The display unit can display engine data and trim and can control troll speed.

Note:

Fit a single gateway for single engines and

a dual gateway for dual engines.

SmartCraft engines have fuel flow sensors,

therefore NAVMAN fuel sensors are not required as well.

If the fuel tank does not have SmartCraft

level sensors, wire for auto power (see section 20-4).

20-10 Installation: Radar

Install the NAVMAN radar as described in the Installation Manual supplied with the radar.

Carefully read the important safety and warning information and also the location and wiring guidelines BEFORE installing the radar.

White

SmartCraft Gateway

During setup enter the SmartCraft setup data. For information on installing, setting up and using SmartCraft, see the SmartCraft Gateways Installation and Operation Manual.

Set up the radar as described in section 19-4.

Radar cable

RADAR

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20-11 Installation: Other NavBus instruments

NavBus is NAVMAN’s system for connecting instruments together to interchange data and share transducers. When instruments are connected by NavBus:

If the units, alarms or calibration are

changed in one instrument, then the values will automatically change in all other instruments of the same type.

Each instrument can be assigned to a

group of instruments. If the backlight is changed in an instrument in group 1, 2, 3 or 4 then the backlight will automatically change in the other instruments in the same group.

If the backlight is changed in an

instrument in group 0 then no other instruments are affected.

If an alarm sounds, mute it by clearing the

alarm on any instrument which can display that alarm.

NavBus and the Instrument

The 8120/8084 can:

Display wind speed and direction from an

optional NAVMAN Wind instrument

Receive and display depth from an

optional NAVMAN depth instrument.

Receive and display boat speed and water

temperature from a paddlewheel sensor on an optional Speed instrument.

Receive data from an optional NAVMAN

VHF radio (with NavBus functionality). The 8120/8084 can display:

Baro: barometric pressure Baro history: barometer history

Weather: a predication, based on changes

in barometric pressure

Fish forecaster: a prediction based on

changes in barometric pressure

DSC/Buddy Track: (see section 17)

Receive data from an optional GPS or

GPS/DGPS source.

Send data to optional NAVMAN

instruments, for example to a repeater.

During setup for NavBus instruments, set NavBus to

and assign the instrument a

NavBus group number (see section 19-12)

Black

Power/data cable

Orange

Blue

NavBus wires to other

NavBus instruments

20-11-1 Installation: NAVMAN VHF radio

Fit and set up the optional NAVMAN VHF radio (with NavBus functionality) following the instructions supplied with the radio.

Black

Power/data cable

Orange

Blue Grey

Blue

Radio data cable

NAVMAN 8120/8084 Installation and Operation Manual100

Navman 8084, 8120 Operation Manual

Specifications and Main Features

Frequently Asked Questions

User Manual