Furuno FR-8252 Vector Attributes, What is a vector?, Vector time, vector reference, Target menu

3. ARP OPERATION

3.6Vector Attributes

What is a vector?

A vector is a line extending from a tracked target which shows speed and course of the target. The vector tip shows estimated position of the target after the selected vector time elapses. It can be useful to extend the vector length (time) in order to evaluate the risk of collision with any target.

Vector

Vector

Vector time, vector reference

Vector time can be set to 30 seconds, 1, 3, 6, 15 or 30 minutes. You may reference the vectors to North (True, requires heading and speed data) or ship's heading (relative) as desired.

1.Press the MENU key to open the menu.

2.Choose Target and press the ENTER key.

Menu

Brill/Color

Display

Echo

Target Trails

Mark

Custom 1

Custom 2

Custom 3

Tuning

GPS Buoy

Target

ARP

AIS

GPS

System

Target

Vector Time	: 6min
Vector Reference	: Relative
History Dots	: 5
History Intervals	: 1min
CPA	: Off
TCPA	: 1min
Proximity Alarm	: Off

[ENTER]: Enter [CANCEL/HL OFF]: Back

[MENU]: Exit

Target menu

3.Choose Vector Time and press the ENTER key.

4.Choose desired vector time and press the ENTER key.

5.Choose Vector Reference and press the ENTER key.

6.Choose Relative or True as appropriate and press the ENTER key.

Relative: Other ships move relative to own ship. This mode is useful as an anti-collision aid. If a vessel is on a collision course with own ship its vector will be pointing toward own ship position. True: Own ship and other ships move at their true motions. This mode is useful for discriminating between moving and stationary targets.

7.Press the MENU key to close the menu.

30sec

1min

3min

6min

15min

30min

Vector time choices

Relative

True

Vector reference choices

The functions of the Target menu are commonly shared by ARP and AIS.

Note

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