Spectra Precision Survey Pro v4.6 Recon and Nomad User Manual - Manual (Page 256)

User’s Manual – GPS Mode
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A coordinate system is un-initialized when you have no zone record
set. In Ground – TDS Localization mode, this means that you have not
yet configured the first RTK base position in Survey Pro. In Mapping
Plane
mode, this means you have not yet selected a zone record from
the coordinate system database.
A coordinate system is set when there is a zone record set. In Ground
- TDS Localization
mode, a default mapping plane zone is set when
you configure your first base reference position for the job. In Mapping
Plane
mode, you select a zone from the coordinate system database.
A coordinate system is solved when it is ready to correctly transform
GPS positions measured at the rover into your local coordinates. In
Ground – TDS Localization
mode, this is the case after you have solved
the horizontal localization adjustment. In Mapping Plane mode, there
are two cases. When you start a survey from a known base position,
then the rover is already calculating accurate positions, and the
coordinate system is set and solved. When you start a survey from a
new autonomous base position, you must solve a horizontal
adjustment from control points before you are ready to collect data.
Coordinate Systems of Network RTK Servers
Setting and solving the coordinate system in Survey Pro when using
a network GPS server is not much different than using traditional
base and rover RTK. You should keep the following guidelines in
mind:
• If your horizontal projection mode is set to Ground – TDS
Localization
, then your coordinate system is not referenced to a
geodetic datum. When you do your first remote rover setup, we
will set the default mapping plane. At this point your coordinate
system is set. You then need to complete a localization with two
or more control points. After this point, your localization is solved.
When you do subsequent setups from this network GPS server,
the base reference position should be accurate with respect to
other base reference positions in the network, so you may
continue to survey with the coordinate system you solved
initially.
• If your horizontal projection mode is set to Mapping Plane, then
your coordinate system is referenced to a geodetic datum. When
you set the mapping plane coordinate system, we have all the
parameters we need to transform from the network GPS