Spectra Precision FAST Survey Reference Manual - Manual (Page 164)

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Stake Station Interval Off
However, with Stake Station Interval On, and in addition, "Use Reference CL to Display Directions" on, the same
position shown above is displayed with both current position and instructions to move provided in relation to the
Reference Alignment.
Stake Station Interval On
The example above illustrates a common use of the Reference Centerline. The bold (blue with color screens) reference
centerline may be easier to follow than a curving target alignment such as a curb line. Therefore, the forward and in-out
instructions referencing the master centerline may be more useful in moving quickly to the target point. Any display
with an "*" designation is in regard to the Reference Centerline. The reason for the difference in fill is that with Stake
Station Interval On, the target elevation (101.80) is computed at the target station to stake, whereas with Stake Station
Interval Off, the target elevation is computed at the current offset on the target centerline (station 0+26.1, which is the
default station in the description field). The Reference Centerline station is 0+30.8).
Define Arc (3 Points)
This routine requests three points to define a unique arc, which is then used for stakeout by station and offset. The first
point becomes the beginning of the arc. The prompting is shown below.