To start an RTX survey

  1. Start the survey using the RTK survey style you configured for RTX. See Configuring an RTX survey.

    When data from the RTX correction service is being received via:

    • RTX (SV signals), the radio icon changes to an RTX icon , and RTX appears on the status line.
    • RTX (internet), the GNSS internet source icon appears.
  2. Wait for convergence.

    Typical convergence times depend on the region you are working in and the GNSS receiver you are using:

    • If the GNSS receiver has Trimble ProPoint technology, in most cases you should experience convergence in 1-3 minutes in RTX fast regions and 3-10 minutes globally.

    • If the GNSS receiver does not have Trimble ProPoint technology, convergence will typically take 5-10 minutes in RTX fast regions and less than 15-30 minutes globally.

    For more information on convergence times, see RTX correction service.

    When the message Convergence has been gained appears, you can begin surveying

    To view the RTX status screen, in an RTX (SV) survey, tap . In an RTX (internet) survey, tap RTX status in the Instrument menu.

  3. If you are using a receiver with IMU tilt compensation, align the IMU.

  4. Measure or stake out points.

 

  • Although the RTX rover solution may have converged, it may not yet meet the precision tolerances for point measurement. You may need to remain at a point longer to meet the precision tolerances specified, as the RTX rover solution should converge more when the rover is in static mode. Precisions for surveys using the Trimble Centerpoint RTX service are very sensitive to environmental conditions such as multipath, ionosphere scintillation, and particularly tropospheric conditions and tree canopy.
  • To change the precision level at which convergence is acceptable, clear the Auto tolerance check box in the Rover options screen and enter the values that you want to use.