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RTK Mapping 8
Positions logged in Roving mode use the Logging intervals and
Minimum positions settings in the Logging options form in the Asset
Surveyor software. Point features logged in Roving mode will
therefore record and average the positions collected while the feature
is open.
Note – The GPS Pathfinder Office software applies smart averaging
which means that if a feature contains autonomous positions as well
as RTK positions then the autonomous positions are ignored when
computing the averaged positions for the feature.
Positions within line and area features, and positions collected as Not
in Feature, which are required to be collected as RTK positions, are
only logged if the estimated precision for those positions falls within
the RTK Roving Precision Tolerances set in the Position filters form.
8.3 Before You Begin
Before you begin your data collection in the field, there are a number
of factors that you need to consider to ensure smooth operation.
Moving the base station
If your roving receiver moves outside the range of the base station,
you may want to move the base station to a new location. Make sure
that each new base coordinate is in the same terms as the initial base
coordinate. That is, make sure that they are referenced to the same
coordinate system and a that control survey has been conducted to
ensure that all base coordinates have their relative errors reduced with
reference to each another.
Note – When using multiple base stations for a single data collection
project, Trimble recommends that a qualified surveyor be employed to
conduct a control survey of the base station reference positions.
Coordinates published by a reliable source and coordinates
determined by control surveys should be homogeneous.
TSC1 Asset Surveyor Operation Manual 199