Spectra Precision FAST Survey Reference Manual - Manual (Page 49)

p47
Next, the Reference Closing Angle dialog appears. Enter the bearing or azimuth of the reference angle, or define the
reference angle with points by entering in the desired point numbers in the From Point and To Point fields. If using
bearing or azimuth, enter the bearing in DD.MMSS format and then select the correct quadrant from the format field
located at the bottom of the dialog. Once the reference angle has been defined, then the angular error display will
update with the calculated angular error. The measured closing bearing and measured closing azimuth is displayed at
the top of the dialog box. If the reference angle has been defined by point numbers, then the reference closing angle
field will update and display the defined angle. There is no need to select a format from the format field if point
numbers are used.
Pressing the OK button, or the enter key, will execute the angle balance process, and the process results will be
displayed. The results display shows the closure results before angle balance and after angle balance.