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Contents ix
5.8 Setting up your fishfinder ..................................................................................110
Display settings ...........................................................................................111
Transducer Calibration ................................................................................112
DSM Setup ..................................................................................................113
5.9 Other settings affecting the fishfinder image ....................................................114
Operating frequency modes ........................................................................114
Gain modes .................................................................................................115
Adjusting the power setting ........................................................................117
Chapter 6: Using the Radar ...................................................................................119
6.1 Introduction ......................................................................................................119
6.2 What is radar? ..................................................................................................119
Detecting targets ........................................................................................119
Maximum radar range ................................................................................120
Factors impairing a radar picture .................................................................120
6.3 Powering on/off the various scanner operating modes .....................................124
6.4 The radar picture ...............................................................................................125
6.5 Marking a position on the radar screen ............................................................126
6.6 Changing what you see in the radar window ....................................................126
Setting the orientation of the radar .............................................................126
Setting the motion mode ............................................................................128
Showing or hiding the range rings ..............................................................130
Changing the bearing mode for EBLs ..........................................................130
6.7 Getting the best picture ....................................................................................130
Using the GAIN functions ............................................................................130
Using the enhance echoes functions ...........................................................132
6.8 Changing the displayed range ..........................................................................135
Radar range and chart scale synchronization ..............................................135
6.9 Measuring distances, ranges and bearings .......................................................136
... Using the range rings ..............................................................................136
... Using the cursor ......................................................................................136
... Using VRMs and EBLs ..............................................................................137
... Using floating VRMs/EBLs .......................................................................139
6.10 Using radar to avoid a collision .........................................................................140
Guard Zones ...............................................................................................140
MARPA .......................................................................................................143
Setting up MARPA .......................................................................................146
81221_4.book Page ix Tuesday, February 28, 2006 5:24 PM