Suunto X9 Instruction Manual

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other at right angles on a map. Grid systems allow 
you to locate or report on a specific point on the 
map. 
Heading (hea) 
Compass direction on the present course.
Latitude 
Angular distance North or South of the Equator.
Longitude 
Angular distance West or East of the prime 
meridian.
Navigation 
Traveling between two locations on a route with 
knowledge of the current position in relation to the 
route.
Position 
Exact map coordinates of a given position.
Time of Sunrise (tsr) 
Time of sunrise based on the current GPS 
position.
Time of Sunset (tss) 
Time of sunset based on the current GPS 
position.
Time to Waypoint (ttw) 
Estimated travel time to the next waypoint based 
on the current speed.
UTC offset
UTC means Universal Time, Coordinated. There 
are 25 standard time zones around the world that 
are all an integer offset of hours to UTC-time. If 
UTC-time is 12:00 (Noon/PM), then people having 
offset +5 hours, have local time 17:00 (or 5:00 
PM). There are also some countries/places not 
using the standard time zones, they might be e.g. 
5 hours and 45 minutes ahead of UTC.
Universal Transverse Mercator (UTM) A grid system where the world is divided into 60 
north-south zones, each covering a strip 6° wide 
in longitude.
Waypoint Position 
coordinates on a course stored in the 
Suunto X9 memory.
WGS 84
WGS-84 (Geodetic, 1984) is an international 
reference system (map datum) which defines the 
shape of an earth ellipsoid, its angular velocity, 
mass, and gravity.