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Nobeltec InSight Radar (IR2)
Operations Manual
Once you’ve identified a target, it takes a few full radar swings for Nobeltec to
properly acquire and track the target.
MARPA Symbology
Nobeltec uses the IMO approved MARPA symbology.
Symbol Description Meaning
Dashed box
Attempting to acquire target. Typically
takes up to 7 full rotations.
Blue Circle with
Vector
Tracking target. Vector shows course
and speed.
Red Triangle with
Vector
Target is a threat because it is inside the
alarm setting. Showing course and speed
through the vector.
Yellow Diamond Lost target. Attempting to re-acquire.
The predictor line extending from the targets symbol gives an estimate of target
course and speed. The end of the predictor line shows the position where, barring
changes, the target will be in a designated amount of time. The predictor line timing
is set to 5 minutes by default.
Tip: If the MARPA target is lost, another feature of the Point and
Click Radar is to use your mouse to drag the symbol back over
the radar echo to help it re-acquire. You can also delete targets
with the right click.
Once a target has been acquired you can see it in the Radar Console as we saw
earlier in the chapter, or on the Targets tab of the NavBar as shown here.
The Targets tab of the NavBar shows all the targets that are being tracked, including
AIS targets. Use the drop down box in its upper left corner to choose the target that
you wish to view. The More Info section is used to display the extra information from
AIS targets.
Chapter 3
Working with IR2
