4RF Aprisa LTE - Page 91

Managing the LTE | 91
Aprisa LTE User Manual 2.1
HDOP
The GPS Horizontal Dilution Of Precision (HDOP) information provides a GPS signal quality rating;
DOP Value
Rating
Description
< 1
Ideal
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.
Number of Satellites
The number of satellites reported as visible by the GNSS receiver.
Status
The status of the GNSS fix.
LAST KNOWN POSITION
Position Coordinates
The last known GNSS latitude and longitude. If position coordinates are manually set in Location > General
and auto fix is not available, then the manually configured position will be shown here.
Status
The last know GNSS status. This will show if last known position is an automatic fix or a manually configured
position.