| Almanac
data |
Satellite constellation information (including location and health of satelites)
that is transmitted to your receiver from every GPS satellite. Almanac data must be
aquired before GPS navigation can begin. |
| Latitude
(Lat) |
The north/south measurement of position in relation to the earth´s polar axis. |
| Velocity
Made Good (VMG) |
The speed you are traveling in the direction of the destination. |
| Differential
GPS (DGPS) |
An extension of the GPS system that uses land-based radio beacons to transmit
position corrections to GPS receivers. |
| Desired
Track (DTK) |
The compass course between the "from" and "to" waypoints. |
| Grid |
Coordinate system that projects the earth on a flat surface, using square zones
for position measurements . UTM/UPS and Maidenhead formats are grid systems. |
| Track
(TRK) |
The direction of movement relative to a ground position. |
| Crosstrack
Error (XTE) |
The distance you are off a desired course in either direction. |
| Longitude
(Lon) |
The east/west measurement of position perpendicular to the earth´s polar axis. |
| Navigation |
The process of travelling from one place to another and knowing where you are in
relation to your desired course. |
| Bearing
(BRG) |
The compass direction from your position to a destination. |
| Position |
An Exact, unique location based on a geographic coordinate system. |
| Estimated
Time of Arrival (ETA) |
The time of day of your arrival at a destination. |
| Estimated
Time Enroute (ETE) |
The time left to your destionation at your present speed. |
| Speed
over Ground (SOG) |
The speed you´re moving in relation to the earth´s surface. |
| Waypoint |
A specific location saved in the receivers memory. |
