User's Manual

Table Of Contents
5 Using the GNSS Receiver
68 GeoExplorer 6000 Series User Guide
Accuracy settings and using accuracy-based logging
If you are using the TerraSync software, use accuracy-based logging to ensure that only
GNSS positions that meet the specified estimated accuracy are logged. GNSS positions
that do not meet your accuracy requirements are not logged.
Note – Accuracy estimates for streaming (dynamic) GNSS positions may not be as good as
those for static GNSS positions.
To configure accuracy-based logging in the TerraSync software:
1. In the Setup section of the TerraSync software, tap
Logging Settings. The Logging Settings form
appears.
2. Tap the
Setup button below the Accuracy
Settings field. The Accuracy Settings form appears.
3. In the Accuracy Value For Display/Logging fields,
select the parameters that will be used to
determine the estimated accuracy:
Select whether to use the horizontal or
vertical accuracy of the current GNSS
position.
Select In the field to use the current
estimated accuracy (recommended if you are using a real-time correction
source), or select Postprocessed to use the predicted estimated accuracy
that will be achieved after the field data has been postprocessed.
4. If you selected Postprocessed:
a. select the estimated distance to the base station that will be used for
postprocessing from the Postprocessing Base Distance field. If you will use
more than one base station (during H-Star processing), specify the
estimated distance to the closest base station.
b. select the type of data that your base station(s) will provide to ensure that
PPA (Predicted Postprocessed Accuracy) values can be predicted
accurately:
If your base station(s) are providing corrections for GPS and GLONASS
satellites, select GPS + GLONASS.
For base stations with only GPS satellite corrections, select GPS.
If you don't know what base station data you will use, or what base data is
provided by your base stations, select GPS.
5. Set the Use Accuracy-based Logging field to Yes. The settings fields for
accuracy-based logging appear.
6. In the Apply Accuracy-based Logging To field, select the feature types that you
want to log only if the GNSS positions meet your required accuracy.