Simrad CE33 ChartSounder Manual page 147

CE33 Glossary of terms Appendix A-1
Almanac – a satellite's almanac data, is data which determines an approxi-
mate lane for satellites in orbit. The almanac data is used by the GPS receiver
to find and lock onto the satellite signal. CE33 has a built-in basic almanac.
Auto trackpoint shift – will automatically shift to the next trackpoint in the
track and provide new steering details (Track navigation).
Auto waypoint shift – will automatically shift to the next waypoint in the
route and provide new steering details (Route navigation).
AVN – Approximate Velocity Necessary – to arrive at a specific waypoint at a
specific time.
Bearing – is the direction of where to go e.g. towards a specific waypoint.
Course – Course Over Ground, magnetic or true. The direction of which the
vessel is moving.
Configuration – the configuration functions of the CE33 allow you to adapt
the system more specifically to your needs. You may set Units of measure
(feet, fathoms, meters, etc.), Menu languages, Scroll speed, etc.
dGPS – differential data is received from built-in DGPS module or an exter-
nal DGPS Receiver.
ETA - Estimated Time of Arrival - at a specific waypoint if keeping a steady
speed.
Great circle – the shortest distance between two points on the globe.
Grid - on chart can be set to AUTO / ON / OFF.
ON = the grid is always visible on the chart display.
OFF = the grid is turned off and will not show on the chart display.
AUTO = the grid will not appear in the ordinary chart display, but will be
there when in overzoom and when "Chart" is turned off in the Chart setup,
which means that there will be no World chart presented and no C-MAP
charts presented – only user-made data such as waypoints, routes, lines and
tracks, etc.
Heading – the direction of which the vessel is pointing (from ext.compass).
LOG speed calibration – the unit is preset to receive 19000 pulses per nauti-
cal mile from the log transducer (paddle wheel). However the figure might
have to be changed to compensate for various transducers and actual water