Furuno NAVNET 1724C - Manual (Page 154)

5. AIS OPERATION
5-3
5.2 AIS Symbols
When RANGE or SECTOR is selected, AIS-equipped ships are marked on the display at
their current position with the appropriate AIS symbol as shown below.
AIS symbols
Symbol Description
Activated target
Activated automatically or manually. The dashed line shows ship’s
SOG and COG (or STW and CTW). The solid shows target bearing.
Dangerous
target
A target whose CPA and TCPA are within the CPA and TCPA values
set by the operator.
Lost target
A target is declared a lost target when no data is received for three to
five reporting intervals. When this occurs, the target is marked with the
(flashing) lost target symbol.
Target selected
for data display
Target selected on radar display. (Dashed square does not appear
when target is selected on plotter display.)
5.3 Setting Number of AIS Targets to Display
Up to 100 of the closest AIS targets may be displayed on the screen. If you do not require
all targets you choose the number of targets to display, from 1-100.
1. Press the MENU key to display the main menu.
2. Press the SYSTEM CONFIGURATION soft key.
3. Press the GENERAL SETUP soft key.
4. Press the AIS OPTION soft key to show the AIS OPTION menu.
5. Choose THE NUMBER OF AIS TARGET and press the EDIT soft key.
6. Enter the number of AIS targets you wish to display and press the ENTER soft key.
7. Press the MENU key to close the menu.