Version 3.0
245
Glossary
Operator’s Manual
COMPASS HEADING
Compass reading before correction for deviation and variation.
COMPASS MAGNETIC VARIATION
See MAGNETIC VARIATION.
COURSE
The horizontal direction in which a vessel is steered or intended to
be steered, expressed as angular distance from north clockwise
through 360°. (Strictly the term applies to direction through the
water, not the direction intended to be made good over the ground).
The course is often designated as
true
,
magnetic
, or
compass
as
the reference direction is true, magnetic, or compass, respectively.
COURSE LINE
A line, as drawn on a chart, extending in the direction of a course
(Rhumb Line).
COURSE OVER GROUND
Course made good relative to the sea bed.
CROSS TRACK ERROR (XTE)
The perpendicular distance from the vessel to the actual course
line (track) as defined in the active route.
CURSOR
A flashing rectangle superimposed on a character position in the
display window, indicating that a character may be entered in that
position, or that the existing character may be changed via the
keyboard.
DATUM
The framework on which the coordinates used to define position
on the Earth’s surface are based. In the navigator, a datum is de-
fined by the following parameters:
A and I/F. Size and shape of a reference ellipsoid.
DX, DY, DZ. Position of the reference ellipsoid origin in relation to
the satellite datum ellipsoid origin.
Summary of Contents for MX500
Page 1: ...oOperator s Installation Manual MX500 Navigation System ...
Page 14: ...Version 3 0 ix Table of Contents Operator s Manual ...
Page 165: ...Version 3 0 151 Configuration Operator s Manual ...
Page 167: ...Version 3 0 153 Datum List Operator s Manual ...
Page 195: ...List of Components Installation Manual Version 3 0 181 APPENDIX F INSTALLATION SECTION ...
Page 196: ...Installation Manual List of Components 182 Version 3 0 SECTION 1 LIST OF COMPONENTS ...
Page 219: ...Installation Notes Version 3 0 205 Installation Manual SECTION 5 INSTALLATION NOTES ...
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