Javad DELTA, Руководство оператора

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Setup and Measuring
Real Time Kinematic Measuring
Measure Antenna Height
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4. Move the Rover to the next location (measuring 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 measured. The occupation time for the
points depends on the same factors as for the static measuring 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 measuring allows the operator to reduce the
point occupation time, thus permitting field crews to measuring many more points
compared to the other methods available.
4.5. Real Time Kinematic Measuring
With RTK measuring, as with kinematic measuring 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 measurings, RTK measurings 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 measurings, see “Configuring the Receiver” on page 30.
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.
• Standalone – where the receiver computes 3D coordinates in autonomous mode without
using differential corrections.
• Code differential – where the Rover receiver computes the current relative coordinate in
differential mode using only pseudo ranges.
• RTK float – where the Rover receiver computes the current relative coordinates in
differential mode using both pseudo ranges and phases; however, with a float solution, the
phase ambiguity is not a fixed integer number and the “float” estimate is used instead.
• RTK fixed – where the Rover receiver computes current relative coordinates, with
ambiguity fixing, in differential mode. The LQ field reflects the status of the received
differential messages and contains the following information:
• Data link quality in percentage