42 TRACKER 5430/5430i Installation and Operation Manual
Appendix C - Glossary and navigation data
Attention Area - An important area on a chart,
such as a restricted anchorage or a shallow area
(see section 13-2).
Bathymetric line - A depth contour line on the
Chart card - A plug-in card that stores chart data
for a region (see section 1-2).
C-MAP™ chart card - See Chart card.
C-MAP™ user card - See User card.
Cursor - A symbol on the display (see section
DGPS - Differential Global Positioning System. A
navigation tool based on GPS with some errors
corrected (see section 7).
Goto - A simple way of navigating straight to a
waypoint or to the cursor position (see section
GPS - Global Positioning System. A satellite-
based navigation tool (see section 7).
Leg - The straight segments of a route between
waypoints. A route with four waypoints has
MOB - Man overboard.
MOB function - Starts navigating back to the
place where someone fell overboard (see section
NavBus - A way of connecting NAVMAN
instruments together to share data (see section
NMEA - National Marine Electronics Association.
NMEA 0183 - A standard for interfacing marine
electronic devices (see section 14).
Route: Two or more waypoints linked in
sequence to form a course for the boat (see
User card - A plug-in card that stores waypoints,
routes and tracks (see section 1-2).
UTC - Universal Time Coordinated or
Coordinated Universal Time, which is a standard
world time, formerly called Greenwich Mean
Waypoint - A user-definable chart position (see