Spectra Precision Survey Pro v4.9 - Manual (Page 106)

[Occupy Control >]: Opens the Occupy Control Setup screen. When you have occupied enough control to solve the
calibration, the Check GPS Resection/Backsight screen opens.
Use base as vertical benchmark: Check this box if the base is set up on a job point with an accurate elevation to
include it for vertical control during calibration.
[Start Now]: Solves a temporary calibration, which allows you to collect data before the calibration is fully solved,
then opens the
Data Collection screen. You must collect the required number of control at some point in order to get
valid local coordinates for your GPS data collected points.
[One Point]: This will solve a valid calibration using the base point as the horizontal and vertical control point,then
open the
Data Collection screen.
Note: The [One Point] button appears in place of the [Start Now>] button when the conditions for One Point setup
are met:
You must be in Default Ground Calibration projection mode.
You can have only one point in the job, and that point was selected as the base point location.
You cannot yet have a coordinate system initialized or solved.
Occupy Control Setup
The Occupy Control Setup screen is used to specify which job point with accurate NEE coordinates you are occupying
and if you want to use the point for horizontal and/or vertical control in the calibration. The assignment of H and/or V
can be modified later.
Point: Select the existing job point you are occupying.
H: Select this option if the point has good horizontal coordinates to use for horizontal control when localizing.
V: Select this option if the point has a good elevation to use for vertical control when localizing.
[Set HR]: Opens the
Receiver Antenna screen where you can change the antenna setup and update the receiver.
[Start Control Point Occupy]: Opens the Occupy Control Point screen.
Check GPS Resection / Backsight
The Check GPS Resection / Backsight screen is used to occupy a check point in order to verify the quality of the
calibration solution.
GPS Resection / Backsight: The points used for the Resection (base setup on a new point) or the Backsight (base
setup on an existing point) are shown in the display.
[Occupy Check >]: Opens the
Occupy Check Setup screen to select an existing job file point and initiate an
occupation to check the calibration. When you have occupied a check point for horizontal and vertical solutions, the
Solve Calibration screen will open.
[Start Now]: Solves the calibration with the current control points, and opens the Data Collection screen. This
calibration solution will use the minimum number of points required, so there will be no redundancy of the solution,
and therefore no way to verify the results. You should occupy a check point at some time during the survey to check
the quality of your solution.
[One Point]: Solves a valid calibration using the one control point collected,then open the
Data Collection screen.
Note: The [One Point] button appears in place of the [Start Now>] button when the conditions for One Point setup
are met:
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