User's Manual

5 Using the GPS Receiver
60 Juno SA Handheld User Guide
Starting the GPS field software
• Tap / Programs and then select the GPS field software, for example GPS
Controller.
When you first open any Trimble GPS field software, the Skyplot section is displayed.
Viewing available GPS satellites
Use the graphical Skyplot section or the Satellite Info
section in the Trimble GPS field software to view
detailed GPS information.
Note – To receive signals from GPS satellites, the
handheld must have a clear view of the sky. GPS positions
may not always be available, particularly in or near
buildings, in vehicles, or under tree canopy.
Resetting the GPS receiver
Trimble GPS field applications all have options to reset
the receiver to:
• delete the almanac
• delete information stored on the last known position
• restart the receiver
• reset the GPS receiver to factory default settings
Performing a reset to factory defaults or a hard reset on the Juno SA handheld will also
reset the GPS receiver to factory default settings.
Ensuring the accuracy of your GPS data
The Juno SA handheld has an integrated GPS receiver that provides accurate
positioning with real-time differential correction between two and five meters, or
postprocessed accuracy between one and three meters.
The accuracy that you obtain from your Juno SA handheld is affected by a number of
factors, including whether the data is differentially corrected in real-time or after data
collection, and the availability of GPS satellites in the sky when you collect the data.
The list below identifies the most important settings and techniques that you can use
in the field to improve the accuracy of your data:
1. If you are using TerraSync software to collect data, use accuracy-based logging.
For more information, see page 61.
2. Use real-time differential SBAS corrections. For more information, see page 62.