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Nobeltec InSight Radar (IR2)
Operations Manual
Point and Click Radar (MARPA)
MARPA is an acronym for Mini Automated Radar Plotting Aid. Its primary purpose is
for collision avoidance and target tracking.
WARNING
No single navigational aid should be relied upon for
the safety of vessel and crew. The captain has the
responsibility to use all navigation aids to verify position.
Electronic navigation aids are not a substitute for basic
navigational principles and common sense.
Properly tuning and adjusting your radar in changing
conditions is critical for target tracking.
MARPA target tracking requires accurate heading data. A
poorly performing heading sensor makes target tracking
impossible. For best performance, use a high speed GPS
gyro compass and GPS.
Remember: MARPA requires a well adjusted and properly setup
digital compass. If using a magnetic compass, you will have to
setup a deviation table to adjust the compass input for magnetic
interferences on your boat. For more information on setting up
your compass deviation table see the chapter titled: Setting up
the InSight Radar
Chapter 3
Working with IR2
