User Manual Part 2

3. ARPA OPERATION
3-5
3. Use the Cursorpad (S or T) to select [Vector Time] and press the ENTER key.
Vector Time setting window
4. Use the Cursorpad (S or T) to select time and press the ENTER key.
5. Use the Cursorpad (S or T) to select [Vector Reference] and press the ENTER
key.
Vector Reference options
6. Use the Cursorpad (S or T) to select [Relative] or [True] then press the ENTER
key. This function is not activate for [IEC] or [Russian-River] purpose. The mode
is set to [True].
[Relative]: Other ships’ vectors are displayed relative to your ship. This mode
helps find targets on a collision course. If a ship is on a collision course with your
ship, the vector of a ship points toward your ship position.
[True]: Your ship’s and other ships’ vectors are displayed at their true motions.
This mode helps discriminate between moving and stationary targets.
7. Press the MENU key to close the menu.
Note: The functions of the [Target] menu are shared by ARPA and AIS.
3.6.3 Vector of your ship
The vector of your ship is shown as an arrow from your ship position. The vector of
your ship is shown on the following conditions:
• Connect ARP-11 (option)
• Select [True] on the menu item [Vector Reference] on the [Target] menu
• Independent of on/off on the menu item [Display] on the [ARPA] menu
Note: The vector of your ship is shown in the same color as the ARPA symbol color
(see section 3.12).