Operation Manual IQ-MOTOR-eco GPS
5.2.2 Track and Bearing
Track is the direction into which an aircraft is moving over ground. The geographic true North
is always 0 or 360 degrees. (East = 90 ; South = 180 ; West = 270 Grad)
Bearing is the direction (according to the system described above) to a selected Waypoint seen
from the viewer.
Caution
: Track or Tracklog
is also called the sequence of recorded positions during one flight.
5.3
Coordinates / Position
For display of the current position on the earth’s surface the IQ MOTOR-eco-GPS applies the
geographical map system named
WGS84
(World Geodetic System 1984). This reference system
assumes that latitude is measured from the equator (0 degrees) to the North Pole, 90 ° N, and to
the South Pole - 90 ° S. Longitude is measured from the Greenwich zero meridian (near London),
East is counted positive and West is negative up to +/-180°.
In Basic Settings / Coordinate Format the data entry format is selectable between:
1)
degrees minutes decimal places of minutes (dd°mm.mmm)
(
factory setting
)
2)
degrees minutes seconds (dd°mm’ss“)
3)
degrees decimal places of degrees (dd.ddddd)
Basically one should always try to use possibility no. 1 (=factory setting), because only this format is
using exactly the same calculation format as the GPS receivers do. With all the other formats rounding
errors could sum up to 20 m.
It is exclusively calculated with the WGS84 system. Differing geodetic systems are no longer
selectable.
5.3.1
Display of actual coordinates
If the IQ-MOTOR-eco GPS
receives satellites by GPS-Receiver, the actual position is displayed
in the information field of the instrument by briefly pressing the key
i
Info.
After 20 sec. the previous display screen will automatically reappear.
This function is
useful in
relaying your location to some person after landing for your pick-up from there. Also when entering
a Waypoint with
WP
OK
Memorise
Pos.
the coordinates are displayed.
WP 2
WP 1
Kurs Linie
Course
Kursabweichung
Crosstrack error
N
Kurs
Track
Distanz
Distance
Peilung
Bearing
Geschwindigkeit
Speed
