Spectra Precision Survey Pro v3.80 Ranger GPS User Manual - Manual (Page 33)

RTK Data Collection
29
3. If your benchmark is a point in the job file, use the button to
select the point, or enter the point number in the Select Point
field.
4. Occupy the benchmark with the rover and tap
2FFXS\ %HQFKPDUN to access the Occupy Control Point screen and
begin measurements to the point.
5. When you are satisfied with the measurement, tap
$FFHSW. You
will return to the Remote Elevation screen and the base station’s
calculated new elevation is displayed. The occupied benchmark
point has now been added to the job file.
6. If the new base elevation is acceptable, tap $FFHSW from the
Remote Elevation screen to update the projection. This will add a
vertical site calculated from the single benchmark and update the
base elevation in the job file.
Using Ellipsoid Heights
Ellipsoid height is a method that stores the local ellipsoid height
measurement as the vertical coordinate. Use ellipsoid heights if the
vertical is not important to the project, or when you intend to
transform heights to elevations in the office using a separate
program.
1. Set the Vertical Projection Mode on the Job, Settings, Projection
card to Ellipsoid Height.
2. Tap
2.. Using vertical ellipsoid heights requires no additional
projection solution.