User's Manual Part 2

5 Using the GPS receiver
70 GeoExplorer 2008 Series User Guide
Using real-time corrections from an external correction source
You can improve the accuracy of your data by using real-time corrections from an
external correction source, such as a GeoBeacon receiver or a DGPS radio. Connect the
external correction source to a Bluetooth port (see page 86) or to the optional serial
clip (see page 109). Use the GPS field software to set up and monitor the real-time input
source that you want to use.
The integrated GPS receiver communicates only through its GPS COM ports (COM2,
COM3, and COM4). Trimble GPS field software, such as TerraSync and GPS Controller,
automatically redirects input from an external correction source connected to COM1
or to a Bluetooth port to the real-time GPS COM port (COM4).
To set up an external correction source in the Trimble GPS field software:
1. In the GPS field software, open the Real-time
section and then tap the
Setup button .
2. In the Choice 1 field, select External Source.
3. Tap the
Setup button next to the Choice 1
field.
4. In the Connection Method field, select Serial Port.
5. In the Port field, select the COM port to use. If you
are using:
– the serial clip, select COM 1.
– a Bluetooth wireless connection, select the
COM port you configured for the Bluetooth
connection in the COM Ports tab of the Bluetooth manager.
6. Tap
OK.
To set up an external correction source for use with non-Trimble GPS field software:
1. In the Trimble GPS Controller software, configure the GPS receiver to use
real-time corrections on COM4. For more information, see the steps above.
2. In the GPS Connector software, manually redirect the real-time correction
source to COM4 by tapping Setup then select the real-time source from the drop
down list.
3. Configure your data collection software to monitor and use real-time
corrections as required.
Note – To receive real-time corrections, the GPS Connector software must remain running
on the handheld.