Furuno 1815 - How to Program the FUNC Key; Echo Average

5. OPERATION
5-34
5.23 How to Program the FUNC Key
The FUNC key can be programmed to do the function you assign.
Function key operation
Press the FUNC key to do the function assigned to the key. Press the key successive-
ly to change the setting.
How to change a function key program
1. Press the MENU/ESC key to open the menu.
2. Use the Cursorpad ( or ) to select [Others] and press the ENTER key.
3. Use the Cursorpad ( or ) to select [Func Setup] and press the ENTER key.
4. Use the Cursorpad ( or ) to select a function from the list and press the EN-
TER key. Below are the available functions.
Function list
5. Press the MENU/ESC key to close the menu.
5.24 Echo Average
To identify true target echoes from the sea clutter, echoes are averaged over succes-
sive picture frames. If an echo is solid and stable, the echo is shown in its normal in-
tensity. The brilliance of sea clutter is reduced to easily identify true targets from the
sea clutter.
Note 1: Do not use the echo average function under heavy pitching and rolling. You
can lose a target.
Note 2: This feature requires a heading signal and position data. When either signal
becomes lost, echo average is deactivated.
To correctly use the echo average function, first reduce the sea clutter:
1. Press the MENU/ESC key to open the menu.
2. Use the Cursorpad ( or ) to select [Echo] and press the ENTER key.
Off
TLL
Rings Brill
Mark Brill
HL Brill
Char.Brill
Viewing Posn.
Display Color
Echo Color
Back. Color
Char. Color
Echo Col. Mode
Display Mode
Zoom
Echo Stretch
Echo Stretch
Echo Average
Int Rejector
Display-Curve
Watchman
Trail Time
Trail Erase
Trail Grad.
Trail Color
Vector Ref.
TT-Display
TT-Erase Lost
AIS-Display
AIS-Erase Lost