User's Manual

Table Of Contents
RADARPILOT / CHARTRADAR
ED 3038 G 232 / 01 (2002-06)
Operating Instructions
10 Trial Manoeuvres
10.3 Setting the Trial Manoeuvre in Relative Display Mode
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The following changes occur in the PPI:
- In the lower region of the PPI, a large, flashing is shown to draw attention to the fact that the trial
manoeuvre display is switched on and that, consequently, the symbols and vectors of the targets
being tracked are no longer being displayed in accordance with the real situation that actually exists
at that time.
- The vector display (of the radar targets) is switched on.
- The vectors are displayed in relative mode.
- Past position plots, if switched on, are displayed in relative mode.
Because the currently existing values were taken over, no manoeuvre has been simulated yet.
10.3 Setting the Trial Manoeuvre in Relative Display Mode
Because the vector display during the trial manoeuvre is a relative display, a collision course can be
recognised from the fact that the vector of a target is pointing towards the own ship symbol (constant
bearing). A manoeuvre must be simulated which avoids this constant bearing while at the same time
fulfilling other conditions (e.g. keeping within the channel, avoiding shallow water, etc.).
A suitable vector-length should be set.
Simulating a Course Manoeuvre
Click on the CSE area, set the trackball to the desired course
change, and press the DO key for the second time.
Because of the relative display mode, the target vectors are
rotated by the simulated course-change.
Display before switch-on of the trial manoeuvre
(with true vector display)
Display after switch-on of the trial manoeuvre
(the target on the right is on a collision course)
Trails remain
unchanged
Targets get
relative vectors
Identification
marking of trial
manoeuvre display
Past position plots
are displayed in
relative mode
CSE
1.DO
10°
3.DO
2.