GP1670F_1870F Operator's Manual - Furuno USA

7. FISH FINDER OPERATIONS7.15.2 How to activate ACCU-FISH TM , select display information1. Open the [FISH FINDER] and [ACCU-FISH] menus.2. Select [FISH INFO] to activate or deactivate ACCU-FISH TM and select the informationto display.[Off]: Deactivate ACCU-FISH TM .[Fish Size]: Show fish size.[Depth]: Show depth to the fish.Fish length or depthis shown in red.Note: You can show the fish info figure alone (without fish symbol) by turning off[FISH SYMBOLS].3. Select [INFO SIZE] to choose the size of the fish info indication, [Small] or [Large].4. Select [FISH SYMBOLS] to choose the style for the fish symbol, [Off], [Solid] or[Striped]. The size of the symbol is scaled according to fish length.Large fish symbol(more than 50 cm, ormore than 20 inches)Small fish symbol(10 to 49 cm, or 4 to19 inches)StripedSolid7.15.3 Fish size correctionThe fish size shown on the display can be different from the true size. If the size indicatedis wrong, add an offset to the measured value to get an accurate indication onthe screen. Open the [FISH FINDER] and [ACCU-FISH] menus and select [FISH SIZECORRECTION]. Use the RotoKey TM to set a correction percentage. The settingrange is -80% to +100%, in intervals of 10%.SettingRevised fish length+100 Two times+50 1.5 times-50 1/2-65 1/3-75 1/4-80 1/57-17