Spectra Precision Survey Pro v5.4 - Manual (Page 110)

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collector in the vertical and/or horizontal plane. The data collector will
provide the necessary instructions on the screen as you progress, until the
procedure is complete.
Using the Electronic Compass
Once running and if properly calibrated, the electronic compass will assist you
in the following ways while using Survey Pro:
• The current value of heading will continuously be displayed in the upper-
left corner of the active map (e.g. Compass Heading: 111°)
• In optical stakeout, North and south indicators will be placed on the
compass screen.
• In GNSS stakeout, for which these indications already exist without an
electronic compass running, the heading value given by the compass being
more accurate than the one provided by the GNSS –especially when the
rover is stationary or moving slowly– the N/S indicators shown on the
stakeout screen are those derived from the electronic compass, and not
from the GNSS.
While staking out a point with the electronic compass active, the button on the
stakeout screen gives access to the compass settings as well.