Spectra-precision Survey Pro v3.80 Recon iPAQ User Manual Manual de usuario Pagina 90

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User’s Manual
82
Surveying with True Azimuths
Some people need to collect all of their horizontal angles in the form
of azimuths. Survey Pro CE can help automate this process by
computing the backsight azimuth after each new setup in a traverse
and updating the backsight circle and total station’s horizontal angle
accordingly.
1.
You can setup on any existing point and use any other point in
the job as a backsight if the coordinate system is properly aligned
with true north. If not, you can occupy any point as long you have
a known azimuth to any reference.
2.
In the Surveying Settings
screen ( | | ),
confirm that the
Survey with True Azimuths
checkbox is checked.
3.
Setup the total station over the occupy point and aim it toward
your backsight.
4.
Access the Backsight Setup
screen; enter the
Occupy Point
, and
toggle the / button to .
Note: When backsighting on a point, selecting can still
be used, as described next, making it easier to view the azimuth to
the backsight.
5.
If backsighting a known azimuth, enter it in the
BS Direction
field. If backsighting a point, use the shortcut method to enter
the azimuth from the occupy point to the backsight point in the
BS Direction
field. For example, if you are occupying Point 1 and
backsighting Point 2, enter
1-2
in the
BS Direction
field. Once the
cursor leaves that field, the computed azimuth will replace what
you typed.
6.
Tap the button, enter the backsight azimuth in the
Backsight Circle
field and tap (or when
running in Manual Mode). This will set the backsight circle as
the horizontal angle in the total station and set the same angle as
the
Backsight Circle
value. This angle will then be subtracted
from all horizontal angles sent from the total station.
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