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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.
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Select Yes. Station position is known.
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Select Backsight to known point.
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Station: name of the station. Select a point existing in the job.
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Instrument height: elevation of the total station from the ground. It is possible to calculate the height of the instrument.
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Code: code to assign to the station point in case a new point is created.
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E, N, Z: coordinates of the station. When an existing point was selected, the values cannot be edited.
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Click Atmospheric coeff to change the atmospheric coefficients.
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Click Next to proceed to define the reference point.
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Point: specify the reference point which must be measured for the calculation of the station orientation.
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Azimuth: the azimuth between the position of the station and the reference point is calculated.
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Circle: define how to set the horizontal angle of the station:
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Current value: the angle of the station is not modified.
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Zero: the angle of the station is reset to the reference point.
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Azimuth: the angle of the station is set to the azimuth value.
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Press Next to measure the backsight point.
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Aim the point of orientation.
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Tap Measure.
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The calculated data and the differences for angle and distance are displayed.
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Tap Accept setup to confirm set data and complete procedure.