User's Manual

Table Of Contents
GeoExplorer 6000 Series User Guide 125
Troubleshooting 8
GNSS receiver issues
Problem Cause Solution
The handheld is not
receiving GNSS positions.
The integrated GNSS
receiver is not activated.
Use the Connect or Activate GNSS/GPS command in the
field software to open the GNSS COM port and activate
the integrated GNSS receiver. For more information,
see Using the GNSS Receiver, page 61.
Incorrect configuration of
serial COM port.
When supplying GNSS data to an external device using
the COM1 USB to serial converter cable, set the baud
rate to the high-speed TSIP setting: 38400, 8, 1, Odd.
The GNSS COM port is
already in use. Only one
application at a time can
have the port open.
Do the following
Exit the software that is using the GNSS COM port
and then retry in your application.
Check that a GNSS application is not running in the
background. Tap / Task Manager and then
select and close (click
End Task) any GNSS
applications you are not using.
Make sure that connections are not left in use by
the GNSS Connector software; close the application
when you are not using the connections.
The GNSS field software is
using the wrong GNSS
COM port.
Connect to COM2 if the GNSS field software uses NMEA
messages, or COM3 for TSIP messages. For information
on which protocol to use, check the documentation for
the application.
Not enough satellites are
visible.
Move to a location where the receiver has a clear view
of the sky and ensure the antenna is not obstructed.
Alternatively, adjust the GNSS settings to increase
productivity. For more information, refer to the Help
provided with the GNSS field software.
If you are using Trimble field software, use smart
settings. See Using Smart Settings, page 71.
The DOP (Dilution of
Precision) value for the
current position is above
the maximum DOP
setting.
Wait until the DOP value falls below the maximum DOP
specified.
Alternatively, adjust the GNSS settings to increase
productivity. For more information, refer to the Help
provided with the GNSS field software.
If you are using Trimble field software, use smart
settings. See Using Smart Settings, page 71
Wait for real-time is
selected in the GNSS field
software and the
integrated receiver is
waiting to receive
real-time corrections.
If you are collecting data for postprocessing, clear the
wait for real-time selection.
Check that the real-time correction source is setup
correctly (see Connecting to a real-time differential
correction source, page 69).
External antenna
connected but not
receiving data.
The handheld can take up to two seconds to detect
that an external antenna has been connected or
disconnected.
NMEA data includes
autonomous positions.
The integrated GNSS
receiver outputs
autonomous positions
when real-time
corrections are
unavailable.
Configure the NMEA application to filter out
non-DGNSS positions.