Furuno FMD3100, Operator'S Manual

Page: 272 / 395

18. NAVIGATION SENSORS
18-6
18.4 CCRP, Primary and Secondary Positions of Own
Ship
This system displays position in one of four methods
• CCRP position : CCRP
• Primary position : Position generated by position source chosen as highest priority.
• Secondary position : Position generated by position source chosen as 2nd highest
priority.
• Pivot position : Ship’s pivot point position.
The position source for primary position of own ship is chosen as Primary on the
[POSN] page of the [Sensor] menu.
The position source for secondary position of own ship is chosen as Secondary on the
[POSN] page of the [Sensor] menu. Secondary position of own ship is not available as
latitude/longitude value for the user.
Past ship’s track can be plotted on the chart with reference
to CCRP, Primary, Secondary or Pivot position. You can
control their visibility of the tracks, etc. from the [Tracking]
page of the [Symbol Display] menu, shown in the right fig-
ure. In this example, past tracks are plotted using the pri-
mary position-fixing equipment.
Secondary position
of own ship
is is not valid
Position sensor
selected as
Secondary
Valid data exists
Position sensor
selected as priority
lower than
Secondary
Secondary
position of
own ship
used by
this system
No valid data
Valid data exists
No valid data