Spectra Precision Survey Pro v3.80 Recon iPAQ Reference Manual - Manual (Page 211)

Curve Menu
R-205
Results
Station : is the current station.
Deflection : is the horizontal angle to the current station as if
occupying the TS and backsighting the Spiral PI.
Long crd. : is the chord length from the TS to the current station.
Short crd. : is the chord length from the previous station to the
current station.
Traverse on Spiral
&XUYH 6SLUDO
The Traverse on Spiral screen is used to compute the location of, and
optionally store the SC, or ST and spiral PI points.
Radius : is the radius of the circular curve.
Length : is the length along the spiral curve from TS to
SC.
TS / CS Point : is the existing point associated with the
TS or CS point.
$]LPXWK / %HDULQJ : is the tangent direction at the
TS or CS point.
TS->SC : specifies that the curve starts at the tangent to
spiral and ends at the spiral to curve.
CS->ST : specifies that the curve starts at the curve to
spiral and ends at the spiral to tangent.
Right / Left : specifies is the curve turns toward the right
or left as you face the spiral from the TS or CS.
; Store SC / ST : When checked, saves a point for the computed SC
point.
; Store PI : When checked, saves a point for the computed spiral PI.