Index
20220596E 125
NMEA 0183 - A format (language) designed to permit
communication between various types of marine electronic
equipment. In essence this is a two-wire shielded, serial data
link, permitting one device to talk while other devices listen.
Numerous different sentences are available, permitting
communication between various different devices.
Route - A stored sequence of waypoints. These waypoints will
be listed in the order in which you desire to follow them. The
AP300DLX permits the storage of up to 20 routes.
SOG - Speed over ground is the actual speed of the vessel
relative to the ocean floor.
Waypoint - A discrete point, stored in a navigator, located on
the surface of the earth. Normally this point will be identified by
Lat/Lon coordinates although in some systems it may be shown
by T.D.'s. The AP300DLX has the capability of storing 98
waypoints.
XTE - Cross Track Error - Used to identify a vessels position
relative to a straight line drawn between two waypoints. The
amount the vessel is off to the left or to the right of this line is
known as the track. It is normally displayed in hundredths of a
nautical mile, equal to 60 ft or 18,5 m.
UTC - Universal Time Coordinated - Transmitted from
satellites to GPS receivers as the universal time reference for the
Global Positioning System.
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