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EXIT: Select this to exit the GPS menu
4 Press the key to accept your changes and exit
the GPS menu
5 Press the key to exit the menu
Note: When SBAS is ON the GPS system may take
longer to lock
Internal GNSS ‘GPS’
RD8100 GPS models have an internal GNSS module.
When internal GPS is enabled, it will automatically try to
“lock” onto a number of satellites as soon as the RD8100
unit is turned on.
The time required for the GPS module to lock onto the
GPS system varies depending on the length of time that
has passed since the last time the locator was used, and
on the presence of obstacles (like high buildings, trees,
etc.) that obstruct sight to the sky.
If the unit has not been used for several days the time to
first fix may take up to several minutes.
The RD8100 locator display provides a number of icons
indicating the presence of an internal and active GPS
and when this has locked to the GPS system, the quality
of the signal received or numbers of satellites received.
The accuracy of the GPS module is affected by the
number of satellites received and best accuracy is only
reached when the signal quality is at its maximum.
Figure 4.14 GPS Icons
The LCD GPS operation icons provide visual information
about the status of the internal GPS module:
Figure 4.15 GPS status and satellites in view
GPS signal
quality
GPS
operation
GPS active, seeking satellite lock
GPS satellite lock acquired
3 – 5 satellites fixed
6 – 8 satellites fixed
9 – 11 satellites fixed
12 or more satellites fixed
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