User's Manual

Table Of Contents
NACOS Platinum
ED 3100 G 140 / 04 (2011-11)
Operating Instructions
III-3 Permanent Area for Navigation
III Main Applications.fm / 10.11.11
III-28
3.1.4 CCRP
The Consistent Common Reference Position can be chosen from three
different possibilities:
- Conning:
The measurements are stated relative to the conning posi-
tion, which is a defined position on the bridge.
- RADAR:
The measurements are stated relative to the position of the
selected radar antenna.It another transceiver is selected, the
reference position is changed automatically. If RADAR is not
selected as CCRP, its location on the ship symbol is marked
by a small cross:
- Track:
Referring to section 2.1 it must be noted here that the
Trackpilot is utilising the data of the so called System Posi-
tion in the bow of the ship for its control purpose and also
for calculation of all ship relative data (course and track
deviation, drift angle, bearing, distance and time to go to
waypoint and wheel over point, etc.). When in the Trackpilot
Section of this manual the term own ship or own ship‘s
position is used, the own ship‘s System Position (at the
bow of the ship) is referenced.
See chapter 2.1 on page III-16 for details on reference systems.
In each case the minimized ship symbol , the speed vector,
EBL, VRM, range rings and stern line are starting from the selected CCRP and all measurement tools and
the graphic cursor are working and indicating relative to this reference point.
Note: The display of the own ship symbol outline in true scale is depending on user selection and
the selected display range, if True Scaled is switched on.