Spectra Precision Survey Pro CE v3.60 GPS User Manual - Manual (Page 135)

GPS Reference Manual
40
'HOHWH deletes the currently selected site or zone.
Note: Delete cannot be undone. Also, you cannot delete system
database records. If you select a protected record, you will be
prompted that the record cannot be deleted.
)LQLVK accepts the currently selected zone, sets the projection record
and writes the raw data.
Projection Key In Setup
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The Projection Key In Setup wizard is used to generate a custom
mapping plane zone.
Zone Type : is where you select what kind of
map projection to use for the new zone. You
can choose:
•
Transverse Mercator.
•
Lambert 1 Parallel
•
Lambert 2 Parallel
•
Stereographic / Oblique Stereographic
•
Oblique Mercator Angle
Datum Type : is where you select what kind of
datum to use for the new zone. You can choose:
•
Pick from database . Choose this option to add a data base datum
and ellipsoid to the new zone
•
Custom Molodensky . Choose this option to use a custom 3-
parameter datum transformation, with either a custom ellipsoid
or a data base ellipsoid.
•
Custom Similarity . Choose this option to use a 7-parameter datum
transformation, with either a custom ellipsoid or a data base
ellipsoid.