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10 Options
10.1 WAAS GPS-unit
If equipped with the optional WAAS GPS unit, the ZRP 6030+ will store the GPS-
coordinates of a measurement. If the ZRP 6030+ is switched on, the status of the
GPS unit will be indicated next to the battery status symbol.
No GPS signal
Weak GPS Signal
Normal
GPS signal
Intense
GPS signal
The GPS status indication is related to the HDOP (Horizontal Dilution of Precision).
DOP
Rating
Value
1
Ideal
1-2
Excellent
2-5
Good
5-10
Moderate
10-20
Fair
>20
Poor
The WAAS GPS-unit is not able to receive a
positioning signal. The coordinates cannot be
displayed.
The WAAS GPS-unit is receiving the positioning
signal. The quality of the GPS signal is poor.
The WAAS GPS-unit is receiving the positioning
signal. The quality of the GPS signal is ok.
The WAAS GPS-unit is receiving the positioning
signal. The quality of the GPS signal is excellent.
Description
This is the highest possible confidence level to be
used for applications demanding the highest possible
precision at all times.
At this confidence level, positional measurements are
considered accurate enough to meet all but the most
sensitive applications.
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.
Positional measurements could be used for
calculations, but the fix quality could still be improved.
A more open view of the sky is recommended.
Represents a low confidence level. Positional
measurements should be discarded or used only to
indicate a very rough estimate of the current location.
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.
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