Reference Manual Owner manual
Survey Pro Reference Manual 
R-238 
Projection Calculator – Scale 
Mapping Plane Scale Factor: displays the computed mapping plane 
scale factor on the selected mapping plane at the reference point. 
Ellipsoid Scale Factor: displays the computed ellipsoid 
scale factor at the reference point. 
Combined Scale Factor: displays the Mapping Plane 
Scale Factor multiplied by the Ellipsoid Scale Factor. 
This is the ground to grid scale factor. 
Inverse Combined Factor: displays the inverse of the 
Combined Scale Factor. This is the grid to ground scale 
factor and is the value used in the localization solution. 
 < Back : returns you to the previous Projection 
Calculator screen. 
 Accept : copies the two computed values to past results 
and returns you to the Main Menu. 










