Northstar
Explorer 538i/538
Installation and Operation Manual
61
Attention Area
- An important area on a chart,
such as a restricted anchorage or a shallow area
(see section 14-2).
Bathymetric line
- A depth contour line on
the chart.
Chart card
- A plug-in card that stores chart data
for a region (see section 1-3).
C-MAP
™
chart card
- See Chart card.
C-MAP
™
user card
- See User card.
Cursor
- A
symbol on the display (see section
3-2).
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
3-1).
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 three
legs.
MOB
- Man overboard.
MOB function
- Starts navigating back to the
place where someone fell overboard (see section
2-5).
NavBus
- A way of connecting Northstar
instruments together to share data (see section
15-8).
NMEA
- National Marine Electronics Association.
NMEA 0183
- A standard for interfacing marine
electronic devices (see section 15-9).
Route
: Two or more waypoints linked in
sequence to form a course for the boat (see
section 6).
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 Time (GMT).
Waypoint
- A position that you can set on the
Explorer chart, for example a fishing spot or a
point on a route (see section 5).
Glossary
Appendix C - Glossary and navigation data
