User's Manual Part 2

GeoExplorer 2008 Series User Guide 71
Using the GPS receiver 5
Configuring GPS settings
Note – This section describes the GPS Settings form in the GPS Controller software and the
Trimble GPScorrect extension.
Use the GPS Settings form in the Trimble GPS field software to configure the GPS
quality settings you require. The lower the GPS quality settings, the more productive
you are likely to be, as the GPS receiver will track more satellites and be better able to
calculate a GPS position. The stricter the GPS quality settings, the more precise the
GPS positions that are calculated.
Note – If you are using the TerraSync software version 3.21 or later, Trimble recommends
that you use accuracy-based logging (see page 67) to control the quality of the GPS
positions logged. Use the default GPS quality settings and let the TerraSync software
manage the logging of positions based on your required accuracy.
By default, the handheld is configured to receive satellite signals in most conditions.
To open the GPS Settings form, do one of the following:
• Ta p GPS Settings in the Setup section.
• Tap in the Skyplot, Satellite Info, or Plan section.
Selecting predefined settings using the GPS slider
Use the GPS slider to select predefined GPS quality
settings.
Select the slider check box. The slider control appears on
the GPS slider, and some fields in the form become
read-only. The values in these fields change as the slider
control position changes.
Drag the slider control to the left to decrease the GPS
quality requirements and to include more satellites when
calculating GPS positions. Drag it to the right to improve
the GPS quality and exclude satellites that do not meet
the precision requirements from GPS position
calculations.
Selecting custom GPS settings
To select custom GPS quality settings, clear the slider check box. The slider control
disappears from the GPS slider, and the remaining fields change to editable numeric
fields. To specify the required GPS quality settings, enter values in these fields. For
more information about each field, see Recommended GPS settings for maximum
precision, page 124.