Standard Horizon CP180, Руководство пользователя

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GPS Chart Plotters Page 77
R
ROUTE WIDTH This selection allows you to select the width from the left and right of the Route leg where
the GPS Chart Plotter will check to confirm navigation threats. See the picture below. The
default for this selection is 0.04NM.
DEPTH LIMIT This selection allows you to select the water depth in the Route width area so the GPS
Chart Plotter can check and confirm underwater threats. It checks if some objects with
the depth attribute (like Shallow Water, Dredged Areas, Diffusers, Obstructions, Pingos,
Production Installation, Wreck) are above this depth level. Only if the depth attribute is
above the depth limit are they found and considered as dangerous. See the picture
below. The default setting is 10FT.
ACCURACY Defines a segment length into which a leg of the Route is divided in order to execute the
search for dangerous objects with better accuracy. When accuracy is maximal, a
segment length is the shortest. When accuracy is minimal, a segment length is the
longest. Selects among Minimum, Low, Medium, High and Maximum. See the picture
below. The default setting is Medium.
ROUTE CHECK REPORT Shows the list of the dangerous objects found on the charts crossed by the Route.
A
B
C
D
E
F
A - B = Width
C - D = Depth
E -F = Accuracy
Figure 9.8.0a - Route Check parameters
NOTE
Although the functionality is called Route Check, it can also be activated when the navigation is set
to a single point (like DSC, MOB, Mark). In the case of checking a single point towards which the
navigation is started, the leg for which the Route Check is executed is defined by the current position
(the leg’s starting point) and the destination point (the leg’s ending point).