Spectra Precision Survey Pro v3.80 Recon iPAQ Reference Manual - Manual (Page 183)

COGO Menu
R-177
Error dist. : is the distance between the last point and the first point.
Error azm : is the direction from the last point to the first point
Precision : is the ratio between the Error distance and Perimeter .
Add / Edit Line
&RJR 0DS &KHFN $GG /LQH«
The Add / Edit Line screen is used to enter a new line to
the list prior to the selected line segment.
$]LPXWK / %HDULQJ
: is the direction of the line.
Length : is the length of the line, in feet or meters.
: enters the line to the list.
&DQFHO : closes the screen without entering any new line
data.
Add / Edit Curve
&RJR 0DS &KHFN $GG $UF«
The Add / Edit Curve screen is used to enter a new curve
to the list prior to the selected line segment.
5DGLXV : The distance from the radius point to the curve
'HOWD : The internal angle from center to tangent points
'HJUHH $UF : The internal angle equivalent to a 100-ft
arc length
'HJUHH &KRUG : The internal angle equivalent to a 100-ft
chord length
/HQJWK : The arc length
&KRUG : The chord length