Reference Manual Owner manual
Curve Menu 
R-391 
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 
 Curve   Spiral. 
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. 
Azimuth  / Bearing : 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. 










