NorthStar MX500, Operator'S & Installation Manual

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96 Version 3.0
Operator’s Manual Position
Position
There are three POS screens in the CDU. The POS functions are
highly interactive with a number of CFG1 menu selections.
The following CFG1 menus directly impact the POS functions:
¾ COG SOG - sets the filtering time for the displayed values.
¾ Datum - sets the reference datum for your present position.
¾ DGPS - sets the internal or external control for RTCM SC-104
corrections which affect your position accuracy.
¾ GPS - sets an offset for calculating the GPS antenna position if
you can’t physically locate the antenna exactly where you want it
(i.e. over the centerline of the boat); sets the minimum elevation
angle to look for satellites; and in 6 channel models, it also con-
trols the satellite selection process.
¾ Navigation - sets a variety of important functions and alarms (used
in other function screens), but only the Range units:
nautical miles (Nm)
nautical miles and meters (Nm/mtrs)
nautical miles and feet (Nm/ft)
statute miles (Sm)
statute miles and meters (Sm/mtrs)
statute miles and feet (Sm/ft)
kilometers (Km), or
kilometers and meters (Km/mtrs), affect the
POS screens.
¾
Position - sets Lat/Lon or UTM, Grid (optional) and some alarm
limits.
¾ Time - sets appropriate offsets, and 12 or 24 hour clock mode.
POS1 - Position Display (Large Digits)
This single window display provides the largest presentation of the
coordinate information from the CDU. In addition to the coordinates
and datum in use, this screen displays the current course and speed