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Nobeltec InSight Radar (IR2)
Operations Manual
Aligning the Radar Image
Getting the radar to properly align with the electronic chart requires a few key
devices and software settings. As a summary, these three are:
Compass Master Heading Correction: In certain cases, it is not possible to install
the digital compass exactly parallel with the vessel center line. This software setting
allows an offset to be entered into the program to compensate for this occurrence.
Radar Heading Line: For similar reasons to the compass, it is not always possible
to install the radar with the front of the radar exactly parallel with the vessel’s keel
line or center line. The Radar Heading Line adjustment can compensate for this
occurrence.
Compass Deviation: Magnetic compasses can give incorrect readings for many
reasons. The most typical is magnetic interference on the boat. The engine block,
a large anchor or chain, and even electronics can create magnetic interference.
The Nobeltec software allows you to make entries in a deviation table that tells the
software how to adjust the incoming heading data to compensate for these local
deviations.
Tip: Using a Combination GPS/Heading sensor that determines
heading based on dual GPS antennas (instead of magnetic
influence) significantly improves the accuracy of incoming heading
data and simplifies the radar alignment process.
Remember: Aligning the radar with a chart is not a perfect
science. Remember that a chart is a hydrographers artistic view
of the coastline and surrounding navigable information. A radar
on the other hand is a real depiction of what is being returned
and interpreted by the radar. You should expect that there will be
some level of disparity between the chart and the radar.
Setting up IR2
