Humminbird ] 981 User Manual
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TABLE OF CONTENTS
Chart/Bird’s Eye Combo View
(987c SI Combo models only)
.......................................... 38
Chart View
(987c SI Combo models only)
.............................................................................. 39
Chart/Sonar Combo View
(987c SI Combo models only)
................................................ 39
Chart/Side Combo View
(987c SI Combo models only)
.................................................... 40
Chart Orientation
(987c SI Combo models only)
................................................................ 40
Viewing Cartography
(987c SI Combo models only)
40
Navigation (
987c SI Combo models only)
41
Waypoints, Routes and Tracks ............................................................................................ 42
Save, Edit, or Delete a Waypoint ........................................................................................ 42
Navigate to a Waypoint or Position .................................................................................. 43
Add a Waypoint Target or Trolling Grid .......................................................................... 44
Save, Edit or Delete a Route ................................................................................................ 45
Save or Clear a Current Track .............................................................................................. 45
Edit, Delete or Hide Saved Tracks ...................................................................................... 45
The Menu System
46
Start-Up Options Menu
47
Normal Operation.................................................................................................................... 48
Simulator .................................................................................................................................. 48
System Status .......................................................................................................................... 48
Self Test........................................................................................................................................ 48
Accessory Test............................................................................................................................ 49
GPS Diagnostic View
(987c SI Combo models only)
.......................................................... 49
Sonar X-Press™ Menu
50
Active Side.................................................................................................................................. 50
Split Position.............................................................................................................................. 50
Sensitivity .................................................................................................................................. 51
Upper Range
(Advanced, Sonar, Split Sonar and Active Sonar Side Views only)
.............. 51
Lower Range .............................................................................................................................. 52
Chart Speed .............................................................................................................................. 52
Zoom Level
(Sonar Zoom View, 981c SI models only)
.......................................................... 52
Bottom Lock
(Sonar Zoom View only)
.................................................................................... 53
Bottom Range
(Sonar Zoom View only, when Bottom Lock is On)
.................................... 53
Sonar Colors................................................................................................................................ 53
Side Imaging X-Press™ Menu
54
Active Side .................................................................................................................................. 54
Split Position .............................................................................................................................. 54
SI Side .......................................................................................................................................... 55
SI Sensitivity .............................................................................................................................. 55
SI Range ...................................................................................................................................... 55
Chart Speed .............................................................................................................................. 55
SI Colors ...................................................................................................................................... 56
Navigation X-Press™ Menu
(987c SI Combo models only)
56
Active Side .................................................................................................................................. 57
Split Position .............................................................................................................................. 57
Save Current Track .................................................................................................................. 57
Clear Current Track .................................................................................................................. 57
Save Current Route
(Only When Navigating)
...................................................................... 58
Skip Next Waypoint
(Only When Navigating)
.................................................................... 58
Cancel Navigation
(Only When Navigating)
........................................................................ 58
Remove Target
(Only If a Target is Active)
............................................................................ 58
Remove Grid
(Only If a Grid is Active)
.................................................................................... 59
Sonar Menu Tab
59
Beam Select .............................................................................................................................. 60
Side View Frequency................................................................................................................60
Fish ID+™ .................................................................................................................................... 60
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