Trimble Outdoors JUNO ST handheld - Manual (Page 55)

Juno ST Handheld User Guide 53
Using GPS 5
Using SBAS differential corrections
The Juno ST handheld has an integrated receiver that uses Satellite Based
Augmentation Systems (SBAS) correction messages to improve the accuracy and
integrity of GPS data as you collect it. The Juno ST handheld supports the WAAS SBAS
system, which provides real-time DGPS coverage for the United States of America. The
receiver tracks SBAS satellites according to its geographical location.
For more information about how real-time differential
GPS works, see
Differential GPS, page 48 .
To use SBAS corrections:
1. In the TerraSync software, open the Real-time
section and tap the
Setup button .
2. In the Choice 1 field, select Integrated SBAS.
3. In the Choice 2 field, specify whether to use
uncorrected positions or to stop using GPS
positions, if corrections are not available.
4. Tap OK.
Outputting NMEA data
You can use the Juno ST handheld's integrated GPS receiver with any GPS field
software that accepts NMEA messages.
If you connect to the GPS receiver using Trimble GPS
field software, NMEA output is switched off by default.
Note – You can only enable NMEA data output using the
GPS Controller software. The software is available as a free
download from the Trimble website. For more information,
see
GPS Controller software, page 50 .
To enable NMEA data output:
1. In the GPS Settings form, set the NMEA Output
field to On.
2. Tap the Setup button that appears next to the
NMEA Output field to configure the NMEA
message output settings.
For more information, refer to the GPS Controller Help.