Furuno GP-1670F Operator's Manual page 8

TABLE OF CONTENTS
6. MAP SETTINGS, 2D PERSPECTIVE/3D DISPLAYS AND
SATELLITE OVERLAY..........................................................................................6-1
6.1 Map Setup.................................................................................................................. 6-1
6.2 2D Perspective Display .............................................................................................. 6-5
6.3 3D Display.................................................................................................................. 6-6
6.3.1 3D display description .................................................................................... 6-6
6.3.2 How to tilt and rotate the 3D display .............................................................. 6-7
6.3.3 How to make the 3D view clearer .................................................................. 6-7
6.4 Satellite Photo Overlay............................................................................................... 6-8
7. FISH FINDER OPERATIONS ................................................................................7-1
7.1 How the Fish Finder Works........................................................................................ 7-1
7.2 Fish Finder Display .................................................................................................... 7-2
7.3 How to Activate the Fish Finder ................................................................................. 7-3
7.4 How to Start, Stop Transmission................................................................................ 7-3
7.5 How to Select a Display ............................................................................................. 7-3
7.5.1 How to select a single frequency or dual frequency....................................... 7-3
7.5.2 How to select a zoom display......................................................................... 7-4
7.5.3 A-scope display.............................................................................................. 7-5
7.5.4 Bottom discrimination display......................................................................... 7-6
7.6 Automatic Fish Finder ................................................................................................ 7-8
7.6.1 How the automatic fish finder works .............................................................. 7-8
7.6.2 How to select an automatic fish finder mode ................................................. 7-8
7.6.3 How to adjust the gain in the auto mode........................................................ 7-8
7.7 Manual Fish Finder Operation.................................................................................... 7-9
7.7.1 How to select a display range ........................................................................ 7-9
7.7.2 How to shift the range .................................................................................... 7-9
7.7.3 How to adjust the gain.................................................................................. 7-10
7.7.4 How to reduce clutter ................................................................................... 7-10
7.8 Picture Advance Speed............................................................................................ 7-11
7.9 How to Reduce Interference .................................................................................... 7-12
7.10 How to Erase Weak Echoes .................................................................................... 7-12
7.11 How to Measure Depth, Time Between Locations ................................................... 7-13
7.12 How to Balance Echo Strength ................................................................................ 7-13
7.13 White Marker............................................................................................................ 7-14
7.14 White Line ................................................................................................................ 7-14
7.15 Alarms ...................................................................................................................... 7-14
7.15.1 How to set an alarm ..................................................................................... 7-15
7.15.2 How to select the echo signal level that triggers the fish alarm ................... 7-15
7.16 ACCU-FISHTM ........................................................................................................ 7-16
7.16.1 Considerations for ACCU-FISHTM .............................................................. 7-16
7.16.2 How to activate ACCU-FISHTM, select display information ........................ 7-17
7.16.3 Fish size correction ...................................................................................... 7-17
7.17 Water Temperature Graph ....................................................................................... 7-18
7.18 FISH FINDER Menu................................................................................................. 7-19
7.19 Interpreting the Display ............................................................................................ 7-22
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