Understanding sonar ........................................................... 4
No-skipping detection ......................................................... 5
Dual Beam Sonar ................................................................. 6
What's in the box ? ............................................................. 6
Transducer installation
1.
Transom installation ................................................ 7
2.
Shoot-thru-hull transducer installation. ...................... 12
Sonar unit installation ......................................................... 15
Operation Instruction
Understanding the Fishfinder screen ............................... 18
Real time sonar window ................................................. 19
Keyboard instruction ..................................................... 20
Data interface .............................................................. 21
Menu Operations
Chart speed .......................................................... 22
Noise Filter ........................................................... 22
Color line .............................................................. 24
Sensitivity ............................................................ 25
Fish ID. Sens ........................................................ 25
Water type .......................................................... 26
Frequency ........................................................... 27
TCG Control .......................................................... 28
Depth Range ......................................................... 29
Zoom Range ......................................................... 30
Backlight .............................................................. 31
Echostyle .............................................................. 32
Keel offset ............................................................ 33
Beeper ................................................................. 34
Simulator ............................................................. 35
Languages ............................................................ 36
System info .......................................................... 36
Load default .......................................................... 37
Temperature units ................................................. 37
Depth units ........................................................... 38
Fish ID alarm ........................................................ 38
Shallow ................................................................ 39
Battery ................................................................. 40
Trouble Shooting ................................................................. 41
Maintenance........................................................................ 43
Storage ............................................................................... 44
Guarantee Conditions ......................................................... 44
Specifications and features ................................................. 45
Echofish 820 – Installation & Operation manual
Table of contents
3