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3. ARPA OPERATION
3-5
3. UseS or T to select [Vector Time] and press the ENTER key.
Vector Time setting window
4. Use S or T to select time and press the ENTER key.
5. Use S or T to select [Vector Reference] and press the ENTER key.
Vector Reference options
6. Use 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 the 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 see the differences 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).
Example of vector display
6min
( 1min~30min)
Relative
True
+
Vector of
your ship
01
Data box
02
Cursor
03
04