Options
last update: 30.07.2014
page 31
The GPS status indication is related to the HDOP (Horizontal Dilution of Precision).
DOP Value
Rating
Description
1
Ideal
This is the highest possible confidence level to be used for
applications demanding the highest possible precision at all times.
1-2
Excellent
At this confidence level, positional measurements are considered
accurate enough to meet all but the most sensitive applications.
2-5
Good
Represents a level that marks the minimum appropriate for
making business decisions. Positional measurements could be
used to make reliable in-route navigation suggestions to the user.
5-10
Moderate
Positional measurements could be used for calculations, but the
fix quality could still be improved. A more open view of the sky is
recommended.
10-20
Fair
Represents a low confidence level. Positional measurements
should be discarded or used only to indicate a very rough estimate
of the current location.
>20
Poor
At this level, measurements are inaccurate by as much as 300
meters with a 6 meter accurate device (50 DOP × 6 meters) and
should be discarded.
By pressing
you can see the GPS
coordinates.
If you take now a measurement, the GPS coordinates
will also be stored in the archive.
The WAAS GPS-unit is not able to receive a
positioning signal. The coordinates cannot be
displayed.
In this case, no GPS coordinates will be stored at the
measurement.
, connecting the WAAS GPS unit can take up to 15 minutes
until the unit is receiving coordinates. The performance of the WAAS GPS unit can be affected
by narrow streets and high buildings that prevent clear view to the sky. In most cases it is not
possible to receive coordinates indoors.
Technical Data:
Accuracy:
min. ±15 meters, < ±3 meters under good conditions
Earth Datum Index: WGS84