Spectra Precision FAST Survey Reference Manual - Manual (Page 338)

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Angle Balance
Select the foresight shot from the last occupied point to the original backsight location. In this example we would select
the leg measured from point 6 to point 7, since point 7 was our foresight angle balance shot to point 2. Press the “OK”
button. In an open traverse, this would be the measured leg that represents the known azimuth or bearing at the end of
the traverse.
Reference Closing Angle
Finally we need to provide the reference closing angle (record). This is the original backsight azimuth. Key in point 1
and point 2, or key in the known azimuth or bearing, followed by the “OK” button.
In an open traverse, key in the stored point numbers that represent the values for the known control points at the end of
the traverse, or key in the known azimuth or bearing.
The adjustment report should be presented, and the adjustment should be complete. The angle balance point number 7
will not be adjusted to fit point number 2, and can be discarded.