GeoSIG Ltd
GS_GXR_GPS_User_Manual_V03.doc / 22.06.2010
Page 8
GPS User Manual
3.2. With a CR-5P
In order to synchronise a GeoSIG CR-5P with the GPS, appropriate configuration should be made in
the Instrument. Once power supply, computer and GPS are connected to the Instrument, such
configuration and checks can be performed using GeoDAS and logging into the Instrument.
a
For more details about the GPS options, please consult GeoDAS and relevant Instrument
manuals.
a
At first installation or after a major (>2’000 km) relocation, it may take upto 5 minutes for
the GPS to correctly compute the exact location of the antenna.
The following is a brief recipe to check whether everything is operational in terms of the GPS:
•
While adding the CR-5P under “Channels of Digitizers”, make sure ‘External SYNC Signal’ is
selected as Time source, as shown in Figure 17.
•
After adding the CR-5P to GeoDAS restart the Software and the Window “Stations: Data Stream”
will appear.
•
When GPS is synchronised, the ‘GPS status’ will read “Locked to GPS”, as shown in Figure 18.
The Data Stream in the ‘Data Monitor’ will be in yellow, as shown in Figure 19.
a
Note that if no GPS is connected, GPS status will read “No Lock” and the colour of the
Data Stream will be white.
Figure 17. Set ‘External SYNC Signal’ as Time source
Figure 18. GPS status as ‘Locked to GPS’
Figure 19. Data Stream is in yellow
