Spectra Precision Survey Pro CE v3.6 User Manual - Manual (Page 229)

Survey Pro Reference Manual
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Backsight Setup
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The Backsight Setup screen allows you to define your backsight prior
to performing data collection or stakeout. The screen is also
accessible from any screen that requires a backsight.
Note: all the information in the Backsight Setup screen is saved so it
will automatically be recalled if the job is reopened at a later time.
Although the information is saved, the screen must still be re-solved
before you can survey.
Occupy Point : is the name of the point from the
current job that the total station is occupying.
HI : is the height that the total station is above
the ground.
HR: is the distance that the backsight prism is
above the ground.
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: is the point or
direction of the backsight where the total station
is facing.
Fixed HR at Backsight : is selected when a second
prism is set up over the backsight. The rod height entered here is
then used independently of the other rod height when checking the
backsight by distance and when shooting the backsight during
repetition shots.
Backsight Circle : displays the backsight circle value, which is set
using the
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button, described below.
Note: The backsight circle angle is subtracted from all horizontal
angles that are read during data collection and the resulting points
are adjusted accordingly. If you do not want this to happen, you
should change the value to zero by using the
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button.