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Check control point screen – Spectra Precision Survey Pro v4.6 Recon-Nomad Reference Manual User Manual

Page 211

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Survey Menu – GPS Module

R-203

Check Control Point Screen

Survey Control Points

Check Point

.

or

Data Collection Control Check Point

.

The Check Control Point screen is used to check a control point. This
is done when you want to verify the quality of the coordinate system

solution.

Coordinates

: displays the local coordinates computed

using the cu5rrent measurement and the latest

projection solution.

Solution

Quality: displays the quality of the current

measurement: the solution type, the number of

satellites used, and the horizontal and vertical precision
computed by the receiver. These values are explained

with the GPS Status screen (Page R-178)

Errors

: displays the differences between the computed

local coordinates and the known coordinates for the

control point.

Note: If the Errors are larger than the measurement
precision of the instrument, you probably have a

problem with your projection solution.

Session Time

: displays the total occupation time so far for this

measurement.

Count Status

: displays Measuring when you have current coordinates

from the receiver and the screen is updating with the latest

measurement. If you are using Epoch Averaging, Averaging is
displayed after you tap Accept while the number of epochs is
averaged in Survey Pro. Suspended is displayed if you are not
receiving valid data from the receiver.

GPS Status : opens the GPS Status screen (Page R-178).

Accept : writes the results to raw data and returns you to the

Control Points screen.