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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Suunto X9_en manual Glossary