Description and Operation
Setup and Survey
Kinematic (Stop & Go) Surveying for Rover Stations
After the survey completes, data the receivers collect can be downloaded onto a computer and processed
using post-processing software (for example, JAVAD GNSS Justin).
8.8. Kinematic (Stop & Go) Surveying for Rover Stations
In a kinematic, stop and go survey, the stationary receiver (Base station) is set up at a known point such as
a survey monument, or an unknown point. The receiver continually tracks satellites and logs raw data into
its memory. The Rover receiver is set up at an unknown point and collects data in static mode for 2 to 10
minutes. When finished, assign the Rover to kinematic status and move to the next survey point. At this
point, and each subsequent point, the receiver is changed to static mode to collect data. So, while moving,
the Rover is in kinematic mode, and while collecting data, the Rover is in static mode.
1. Set up the Rover at an unknown point and press power. Allow the Rover to collect static data for
two to ten minutes. The REC LED will be yellow.
2. Check the SAT light for satellites tracked.
3. When finished, press the FN button for less than 1 second to assign the Rover to kinematic.
4. Move the Rover to the next location (survey point), and press the FN button for less than a second
to collect the data in static mode for two to ten minutes.
5. Repeat steps five and six until all points have been surveyed. The occupation time for the points
depends on the same factors as for the static survey method.
6. When finished, press the FN button for one to five seconds to stop logging data. Turn off the
Rover if needed. This method of GNSS survey allows the operator to reduce the point occupation
time, thus permitting field crews to survey many more points compared to the other methods
available.
8.9. Real Time Kinematic Surveying
With RTK surveying, as with kinematic surveying described above, one receiver serves as the reference
station and conducts observations with its antenna affixed to a stationary tripod or some other device. The
other receiver functions as a rover and conducts observations (using an antenna) affixed to a mobile pole
and moved to observation points.
Unlike post-processed kinematic surveys, RTK surveys utilize a communications link between the Base
and Rover. Using a radio modem link, the Base receiver transmits its measurement and location data to
the Rover receiver. The Rover, based on the transmitted data and its own observation data, immediately
conducts a baseline analysis and outputs the results. For specific settings used in RTK surveys, see
"Configuring the Internal/External UHF Modem/GSM Module" on page 46 and "Configuring the
Receiver" on page 58.
Usually, the receiver will start to output the coordinates of the antenna's phase center along with the
solution type within 10–30 seconds. However, UHF radios and GSM phones may take as long as 60
seconds to synchronize.
The geodetic coordinates displayed on the Location tab are always computed in WGS84 and have four
solution types.
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