Spectra Precision Survey Pro v4.5 Recon and Nomad Reference Manual - Manual (Page 225)

Survey Menu – GPS Module
R-217
• South/West
Grid : is where you set the coordinates increasing
positive in the south, west direction.
Key In Zone - Mapping Plane Parameters
The Key In Zone Mapping Plane Parameters screen is used to enter
the values for the map projection zone.
The parameters required depend on the zone type. They
will include:
• Central Longitude / Latitude: is where you enter
the geodetic origin of the map projection.
• False Northing / Easting: is where you enter the
coordinate offsets at the origin of the map
projection.
• Scale
factor : is where enter the scale factor of the
map projection.
• N / S Parallel: is where you enter the north and
south standard parallels of the map projection.
• Azimuth: is where you enter azimuth of the
central line of the map projection.
Key In Zone – Oblique Mercator Settings
The Key In Zone Oblique Mercator screen is sued to set extra
parameters when the Zone Type is set to Oblique
Mercator Angle
.
Azimuth At : is where you enter the convention for
projection azimuth. Your choices are:
• Equator
• Center of Projection
Origin At : is where you enter the convention for
projection azimuth.
• Equator
• Center of Projection
Rectify Coordinates: is where you set if the coordinates
are rectified. Coordinates are ‘rectified’ if the local plane