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13.2
COMPASS
The GPS Chart Plotter computes compass direction from the constellation of GPS
Satellites. For the GPS Chart Plotter to compute direction the vessel must be moving
through the water unless connected to an optional Flux Gate Compass sensor. The
Compass menu allows the GPS Chart Plotter to customize the following selections:
Bearings
: Selects between True and Magnetic. When Magnetic bearings is enabled, the GPS Chart Plotter applies
the selected MagneticVariation (Auto or Manual, see next paragraph) to compute Magnetic bearing.
Variation
: Allows the user to select Auto or Manual. When Auto mode is selected the GPS Chart Plotter computes
the ofset by the curent GPS fixed location. Manual mode allows the user to enter in a magnetic variation
that is applied in the True conversion.
Calibration : This function allows a user to enter in the offset for areas that the vessel may cruise instead of entering
in a manual offset for one location. This offset is useful for cruising vessels or vessels that travel
internationally often.
13.3
ALARMS
This menu is used to select and setup audible and visual Alarms. Available alarms are
Arrival, XTE, Depth, Anchor and Grounding Alarm.
Arrival Alarm
: Alerts when the vessel is approaching a single destination point or when arriving at a leg in a Route.
Available selections: 0.00 to 9.99NM.
XTE Alarm
: Alerts when the vessel is deviating from a defined course. Available selections: 0.00 to 9.99NM.
Depth Alarm
: Alerts when the received depth Value from the optional FF525 (or FF520) 50/200kHz BLACK BOX
FISH FINDER or Depth Finder inputting NMEA data into the GPS Chart Plotter is lower than the
selected value. Available selections: 0000 to 3000FT.
Anchor Alarm
: Alerts when the ships moves off a selected locations by a selected distance. Available selections:
0.00 to 9.99NM.
Audible Alarm
: Enables or disables the alarm beep.
Grounding Alarm : This function looks ahead of the vessels heading to see if a potential danger exists. When the
Grounding Alarm is enabled the GPS Chart Plotter will draw a triangle in front of the vessel on the
Chart page showing the area that is being searched as shown below. The depth and range (distance)
of the area the GPS Chart Plotter looks ahead for a shallow area can be set using this function.
The Grounding Alarm function is available only if a NT
screen redraw speed so we suggest to disable it when not used.
When any of the objects checked are found for the first time, the GPS Chart Plotter shows a pop
up window to alert the user of the possible danger. The name of each new dangerous object found
is reported in the warning window. In the Grounding Alarm Report page the relative item has a tick
marker next to it, to identify the dangerous object currently detected. If in the next search cycle the
same objects are found again, the alarm window will not be shown. Instead, if in the next searches
the objects found before are no longer detected, their relevant item in the Grounding Alarm Report
page is cleared (note that in this case, if the same object type is found again later, the Alarm will
be shown). The GPS Chart Plotter shows an icon on the charts that identifies when a Grounding
Alarm is detected.
CP590
Figure 13.2 - Compass Table
NOTES
+
/MAX C-CARD is inserted. It also affects the
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