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TABLE OF CONTENTS
Fish ID Sensitivity...................................................................................................................... 61
Real Time Sonar (RTS®) Window ........................................................................................ 61
Bottom View.............................................................................................................................. 62
Zoom Width
(Sonar Zoom View only).................................................................................... 62
50 kHz Sensitivity
(Advanced)................................................................................................ 63
Depth Lines
(Advanced)............................................................................................................ 63
Surface Clutter
(Advanced)...................................................................................................... 63
Noise Filter
(Advanced) ............................................................................................................ 63
Max Depth
(Advanced) ............................................................................................................ 64
Water Type
(Advanced) ............................................................................................................ 64
Color Bar...................................................................................................................................... 64
Temperature Graph
(Sonar View only, with Temperature input)...................................... 65
Navigation Menu Tab (987c SI Combo models only) 65
Tracks............................................................................................................................................ 66
Waypoints .................................................................................................................................. 66
Routes ........................................................................................................................................ 66
Chart Orientation .................................................................................................................... 67
North Reference........................................................................................................................ 67
Trolling Grid Rotation.............................................................................................................. 67
Trackpoint Interval.................................................................................................................... 67
Track Min Distance
(Advanced).............................................................................................. 68
Map Datum
(Advanced) .......................................................................................................... 68
Export All Nav Data
(Advanced) ............................................................................................ 68
Delete All Nav Data
(Advanced) ............................................................................................ 68
Chart Menu Tab (987c SI Combo models only) 69
Chart Detail Level .................................................................................................................... 69
Map Borders .............................................................................................................................. 69
Lat/Lon Grid .............................................................................................................................. 70
Spot Soundings ........................................................................................................................ 70
Shaded Depth............................................................................................................................ 70
Set Simulation Position
(Advanced) .................................................................................... 70
Set Map Offset
(Advanced) ...................................................................................................... 71
Clear Map Offset
(Advanced) .................................................................................................. 71
Alarms Menu Tab 71
Depth Alarm .............................................................................................................................. 72
Fish ID Alarm.............................................................................................................................. 72
Low Battery Alarm.................................................................................................................... 72
Temp Alarm................................................................................................................................ 72
Off Course Alarm
(987c SI Combo models only) .................................................................. 73
Arrival Alarm
(987c SI Combo models only) .......................................................................... 73
Drift Alarm
(987c SI Combo models only).............................................................................. 73
Alarm Tone.................................................................................................................................. 74
Setup Menu Tab 74
Units - Depth.............................................................................................................................. 75
Units - Temp
(International only)............................................................................................ 75
Units - Distance
(With Speed Input only) .............................................................................. 75
Units - Speed
(With Speed Input only).................................................................................... 75
User Mode .................................................................................................................................. 76
Language
(International only) ..................................................................................................76
Triplog Reset
(With Speed Input only).................................................................................... 76
Restore Defaults........................................................................................................................ 76
Select Readouts
(Advanced) .................................................................................................... 77
Depth Offset
(Advanced).......................................................................................................... 78
Temp Offset
(Advanced) .......................................................................................................... 78
Speed Calibration
(Advanced, with Speed Paddlewheel only) .......................................... 79
Local Time Zone
(Advanced, 987c SI Combo models only) ................................................ 79
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