E-Series Reference Manual
5.13 Using the 3D chart with a fishfinder ..................................................................126
5.14 Navigating with 3D charts ................................................................................127
5.15 Setting up the 3D Chart ....................................................................................127
Chapter 6: The Fishfinder...................................................................................... 129
6.1 The fishfinder display ........................................................................................129
6.2 Background information ...................................................................................129
6.3 Operating the fishfinder ....................................................................................130
6.4 Explaining the readout .....................................................................................130
6.5 Factors influencing the readout ........................................................................130
6.6 Display mode settings .......................................................................................131
Adjusting the position of the zoomed area ..................................................133
Bottom lock and bottom shift ......................................................................134
Using A-Scope to view a live image .............................................................134
‘A-SCOPE’ modes ........................................................................................135
6.7 Range control ...................................................................................................135
Changing the range ....................................................................................135
Range shift ..................................................................................................136
6.8 Presentation toolbar .........................................................................................136
Adjusting gain and power ...........................................................................136
Auto gain settings .......................................................................................137
Manually-set gain levels .............................................................................137
Power setting ..............................................................................................138
6.9 Measuring depth and distance .........................................................................138
Measuring depth and distance with VRM ...................................................139
Adjusting the scroll mode and speed ...........................................................140
Pausing scroll ..............................................................................................140
Viewing frequencies within a preset ...........................................................141
Placing waypoints .......................................................................................141
6.10 Fishfinder alarms ..............................................................................................141
6.11 Editing presets ..................................................................................................141
Manual frequency selection ........................................................................142
Automatic frequency selection ....................................................................142
6.12 Fishfinder configuration ....................................................................................143
DSM and transducer setup ..........................................................................143
81244_4.book Page viii Thursday, January 31, 2008 1:53 PM
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