Backsight to known point

X-PAD Ultimate Survey 1.png | X-PAD Ultimate Build 1.png | X-PAD Ultimate GO 2.png

  • The station has been placed on a point of known coordinates and the orientation is determined through the measurement of a reference point with known coordinates.

The reference point must available in the list of topographic points or in the list of reference points.


  • Select Yes. Station position is known.

  • Select Backsight to known point.

    image-20250701-133057.png
    • Station: name of the station. Select a point existing in the job.

    • Instrument height: elevation of the total station from the ground. It is possible to calculate the height of the instrument.

    • Code: code to assign to the station point in case a new point is created.

    • E, N, Z: coordinates of the station. When an existing point was selected, the values cannot be edited.

  • Click Atmospheric coeff to change the atmospheric coefficients.

  • Click Next to proceed to define the reference point.

    image-20250701-133505.png
    • Point: specify the reference point which must be measured for the calculation of the station orientation.

    • Azimuth: the azimuth between the position of the station and the reference point is calculated.

    • Circle: define how to set the horizontal angle of the station:

      • Current value: the angle of the station is not modified.

      • Zero: the angle of the station is reset to the reference point.

      • Azimuth: the angle of the station is set to the azimuth value.

  • Press Next to measure the backsight point.

    image-20251013-073119.png
  • Aim the point of orientation.

  • Tap Measure.

  • The calculated data and the differences for angle and distance are displayed.

  • Tap Accept setup to confirm set data and complete procedure.