Spectra Precision FAST Survey Reference Manual - Manual (Page 264)

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In live stakeout mode, you will get “Off Centerline” when beyond the range of the horizontal alignment.
All paths lead on to the navigation or stakeout (some call it “set out”) screen.
The Navigation (Stakeout) Screen
When configured for GPS, the navigation screen then appears.
Note that because the GPS reads continuously and models the ground surface, the program calculates immediately
where the catch point (the circle with the X) is located. You simply walk right to it. If the ground goes uphill or
downhill as you approach the point, then the X will move closer or move away, until you are right on it.
As you get closer to the point (within the stake tolerance distance) the program will present a bullseye screen.
When you are satisfied with the accuracy of the slope stake position, you then touch S for Store (or press Enter to take
the shot). In this case, its time to drive the stake.
Interval and Non-Interval Methods Impact Stakeout Screen
The stakeout screens above are for the interval method. In the non-interval, “fluid” slope staking, where you can drive
the stake anywhere, the “Forward-Back” portion of the screen becomes vertical “Current Fill” or "Current Cut". In this
fluid stake-out mode, you simply move in or out from the centerline to set the slope stake—there is no correct or
incorrect forward or back station. So the program instead reports the vertical up to the fill slope above you or down to