Spectra Precision Survey Pro v5.1 User Manual

Page 30

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24

Start the station setup as follows:

Go to the Main Menu, then tap

Survey > Station Setup.

Choose

Setup Type= Known Point.

Enter the name of the station setup point in the

Occupy Point field. The

point name can be entered directly, or, picked from the map or point list
using the

button.

If you wish to ignore elevations in your job, check the

2D Survey box. You

will otherwise enter the

HI (height of instrument) field.

Tap

Next.

Then, of the three possible options, choose the one that is suitable for your job:

1. If you choose

BS Azimuth:

• Aim the instrument in the direction of a known or assumed azimuth.

• Enter the known or assumed value of azimuth.

• Enter the desired value of circle in this direction (typically “0” or the

true azimuth). If the

Survey with True Azimuths setting is enabled, then

the circle value will automatically be set by Survey Pro.

• Tap

Set Circle.

• Tap

Next. The screen provides a summary of what you have just done and

prompts you to check the setup.

Check the Setup:

a. If you choose the

By Angle option, just make sure the instrument is

still aimed in the direction of known azimuth, then tap

Check. You

should read the previously set backsight circle.

b. If you choose the

By Point option, enter the name of the point used

for checking, specify the target used on that point, correct the target
height if necessary and tap

Check. A measurement is then made. Check

the delta values reported on the screen, which should be as close as
possible to zero.

c. You cannot use the

By Distance option in this case.

• If you are satisfied with the read values, tap

Finish. You can now start

measuring new points.

NOTE: Checking the backsight is an optional step that is enabled by default. If
you wish to skip backsight checks after station setup, you can turn this off in
the

Job > Settings > Surveying tab.

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