Vector Attributes; What Is A Vector; Vector Time And Vector Reference - Furuno 1835 Operator's Manual

4. AIS OPERATION
4. Use the Cursorpad (S or T) to select the number of targets to display and press
the ENTER key.
5. Press the MENU key to close the menu.
4.10

Vector Attributes

4.10.1

What is a vector?

A vector is a line extending from a tracked target. A vector shows speed and course
of the target. The top of a vector shows estimated position of the target after the se-
lected vector time elapses. If you extend the vector length (time), you can evaluate the
risk of collision with any target.
4.10.2

Vector time and vector reference

1. Press the MENU key to open the menu.
2. Use the Cursorpad (S or T) to select [Target] and press the ENTER key.
3. Use the Cursorpad (S or T) to select [Vector Time] and press the ENTER key.
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.
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.
4-6
Vector Time setting window
Vector Reference options