Suunto X9_en manual Glossary

11. GLOSSARY

Alarm point	Position coordinates of a specific point on a route
	or in the MyPoints function that you can use, for
	example, to warn you about rocks and other
	hazards.
Altitude difference (dif)	Altitude difference between your current position
	and the next waypoint in the unit of your choice.
Altitude to finish (atf)	Total amount of ascent from the current position to
	the last waypoint.
Bearing (bea)	Compass direction from your current position to a
	destination.
Cross Track Error (xte)	This is the shortest distance from your current
	location to the straight line connecting the
	waypoints of the route.
Datum	A datum is a mathematically defined reference
	surface that approximates the shape of the earth,
	and enables calculations such as position and
	area to be carried out in a consistent and accurate
	manner. Every map has a datum or metric grid.
	You have to set your Suunto X9 to the correct
	datum/grid for it to function properly with the map.
Distance from start (dfs)	Traveled distance from the start point.
Distance to finish (dtf)	Distance from the current location to the last
	waypoint on the route (via each waypoint).
Distance to waypoint (dtw)	Distance to either the next or the active waypoint
	or to a My point depending on the chosen
	navigation method.
Estimated Time of Arrival (eta)	Estimated arrival time to the last waypoint based
	on the current speed.
Estimated Time Enroute (ete)	Estimated travel time to your current destination
	based on the current speed.
Global Positioning System (GPS)	Satellite tracking system.
Grid	A grid system is a set of lines that cross each
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