Desired Track (Dtk)
Desired Track is the course angle between the FROM and TO waypoints referenced to the
magnetic variation at the current FROM waypoint. Desired Track is shown from 0 to 359
degrees in one degree increments.
ete aSLE 00:37
0.006 “
Dtk 173 42.4nm
Leg (FROM-TO) Distance
The distance from current FROM waypoint to the current TO waypoint is shown as a
value on the bottom right of the Desired Track (DTK) Nav page, but does not show any
label. In this example, the leg (FROM-TO) distance is 42.4 nm. The nautical mile units
are 0.00 to 9.99 nm at 0.01 nm resolution, 10.0 to 99.9 nm at 0.1 nm resolution, and 100
to 9999 nm at one nm resolution. Kilometer units are 0.00 to 99.99 km at 0.01 km
resolution, 100.0 to 999.9 km at 0.1 km resolution, and 1000 to 9999 km at 1 km
resolution.
Track (Trk) Angle
Track Angle is the angle of your actual direction of travel. Track is shown from 0 to 359
degrees in one degree increments. Track is computed using the magnetic variation at the
Present Position. The Track value will be dashed if the FROM or TO waypoints are blank,
if the GPS receiver does not have a valid position, or if ground speed is less than 5 knots.
ete aSLE 00:37
0.006 “
Trk 175 Tae 002
Track Angle Error (Tae)
Track Angle Error is the difference between the Desired Track and Track Angle (Dtk -
Trk). Track Angle Error is shown from 0 to 359 degrees in one degree increments. Track
Angle Error is computed using the magnetic variation at the Present Position. The Track
Angle Error value will be dashed if the FROM or TO waypoints are blank, if the GPS
receiver does not have a valid position, or if ground speed is less than 5 knots.
Ground Speed (GS)
Ground Speed is the measure of your progress over the ground, not airspeed. Ground
Speed units are from 0 to 999 knots in 1 knot increments. The Ground Speed value will be
replaced with dashes if the speed is less than 5 knots, there is no valid GPS position, or
the TO waypoint is blank.
ete aSLE 00:37
0.006 “
Ft01:23 137kts
Navigation Basics
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