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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