User Manual Part 2

3. ARPA OPERATION
3-4
3. Use the Cursorpad (S or T) to select [All Cancel] and press the ENTER key.
All Cancel options
4. Use the Cursorpad (S) to select [Yes] and press the ENTER key. All symbols are
erased from the screen and the long beep sounds.
5. Press the MENU key to close the menu.
3.6 Vector Attributes
3.6.1 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.
When vector time is 15 minutes
3.6.2 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.
Target menu
Vector
Current position of the target
Vector time
Vector time
Vector time
Predicted position of the target in 15 minutes late
r