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V104n GPS Compass User Guide
V104n Alignment
The top of the V104n enclosure incorporates sight design features to help
you align the enclosure with respect to an important feature on your vessel.
To use the sights, center the small post on the opposite side of the enclosure
from you, within the channel made in the medallion located in the center of
the enclosure top as shown in Figure 2-4 and Figure 2-5. Alignment accuracy
when looking through the site (Figure 2-4)and (Figure 2-5) is approximately
+/- 1°.
Figure 2-4: Long site alignment channel
Figure 2-5: Long sight alignment center post
If you have another accurate source of heading data on your vessel, such as
a gyrocompass, you may use its data to correct for a bias in V104n alignment
within the V104n software configuration. Alternatively, you can physically
adjust the heading of the V104n so that it renders the correct heading
measurement; however, adding a software offset is an easier process.
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