Spectra Precision Survey Pro v4.5 Recon and Nomad User Manual - Manual (Page 273)

GPS Module
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4. Tap Next>.
The final step of the Base Setup wizard will depend on the base point
chosen. If the base (lat, lng, ht) is known or can be computed, the
final step is to SET the base at the known geodetic position. If the
base (lat, lng, ht) is not known, the final step is to GET an
autonomous position to SET the base with.
Base Setup Two – SET
The Base Setup Set screen is used when the geodetic coordinate of the
chosen base reference point is known or can be calculated.
5. Tap SET to start the base receiver broadcasting this
reference position and GPS observations over the
radio link, and to configure the base reference
position in Survey Pro.
Note: If you have post processing data collection turned
on, the receiver will now open a file (with the next
available default name), start recording GPS raw data,
and record the station and antenna information for this
static session.