Spectra Precision Survey Pro v4.6 Ranger User Manual User Manual

Page 283

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GPS Module

273

your survey without solving a localization. You then submit

the post processing data file to the NGS’ OPUS service and

get back the calculated local coordinate. You then wish to
adjust the survey to match the calculated coordinate for your

base.

• You start a survey with your base on a new autonomous

position. You occupy one or more NGS control monuments

during the survey, but you do not have the data sheet with
the published north, east, elevation coordinate in the field.

You get back to the office and download these data sheets

from the NGS web site, and you wish to solve a localization
using these points as control.

• You start a survey with your base on an

autonomous position. You occupy one or

more control points during the survey,

but you do not have the proper north,
east, elevation coordinate in the field.

You get back to the office and you
calculate the proper coordinate for

these points by some method such as an

adjustment of post processed baselines,
or from another crew’s job file

measurement to the same point. You

then wish to solve a localization using

these points as control.

1. Open the Survey > Import GPS Control screen.
2. Select the points you wish to make into GPS control points. You

must select points that have geodetic (LLH) coordinates.

3. Select a method to input the source for the accurate location of the

control point

. Your choices are: NGS Data Sheet .txt file; OPUS

Solution Results .txt file

; Key In Coordinate.

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