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TABLE OF CONTENTS
1. FOREWORD _________________________________________ 1
2. SYSTEM CONFIGURATION_____________________________ 2
3. CONTROLS _________________________________________ 3
Operating Controls .......................................................................................................... 3
Main Panel....................................................................................................................... 4
Control Box Panel ........................................................................................................... 5
Menu Screen.................................................................................................................... 7
4. BASIC OPERATION __________________________________ 10
General .......................................................................................................................... 10
Turning the Power On/Off............................................................................................. 10
Lowering the Transducer............................................................................................... 11
Selecting a Display Range .............................................................................................11
Setting the Tilt Angle..................................................................................................... 11
Adjusting the Gain......................................................................................................... 15
5. FINE TUNING THE PICTURE___________________________ 16
General .......................................................................................................................... 16
Eliminating Unwanted Feeble Echoes........................................................................... 16
Displaying Surface Fish Clearly.................................................................................... 17
Suppressing Seabed Tail................................................................................................ 17
Suppressing Seabed and Sea Surface Reflections in Shallow Fishing Grounds ...........18
Rejecting Sonar Interference and Noise ........................................................................18
Selecting Horizontal Beamwidth................................................................................... 19
Selecting Vertical Beamwidth........................................................................................19
6. ADVANCED OPERATION______________________________ 20
General .......................................................................................................................... 20
Measuring Range and Bearing to a Target.....................................................................20
Detecting Fish Schools Aurally .....................................................................................20
Relocating Fish School for Easy Observation ...............................................................21
Finding Fish School Center ...........................................................................................22
Registering F1/F2 (function) key and Recalling ........................................................... 22
7. MARK AND DATA____________________________________ 24
Marks .............................................................................................................................24
Data................................................................................................................................ 25
8. INTERPRETING THE DISPLAY _________________________ 26
General .......................................................................................................................... 26
Interpreting the Display .................................................................................................26