Spectra Precision Survey Pro 3.80 Recon GPS Reference Manual - Manual (Page 69)

Survey Menu – RTK
69
Projection Calculator – Rotation
Convergence : displays the computed rotation from
geodetic north to grid north.
Rotation : displays the computed rotation from grid north
to geodetic north.
%DFN : returns you to the first Projection Calculator
screen.
$FFHSW : copies the two computed values to past results
and returns you to the Main Menu.
Projection Calculator – Scale – Height Correction
Ellipsoid Height : is where you enter the WGS84 ellipsoid
height for your current location.
%DFN : returns you to the first Projection Calculator
screen.
6ROYH ! : takes you to the final screen.