Spectra Precision Survey Pro v4.6 Recon and Nomad User Manual - Manual (Page 307)

GPS Module
297
Import GPS Control
In some cases, you can occupy a GPS control point in the field during
data collection, but you do not have the correct mapping plane local
north, east, elevation coordinate for that control point. In this case,
you can not solve the localization in the field. However, it is possible
to solve the localization after the field work has been completed, and
Survey Pro will update all of the GPS collected points with the proper
local coordinate.
You can use the Import GPS Control function when your horizontal
projection mode is set to Mapping Plane. This function automates the
process of taking a data collected point, and merging it with the
proper local north, east, elevation coordinate from some external
source to create a GPS control point. Three common work flow
scenarios are:
• You start a survey with your base on a new autonomous
position. You set the base to log data for post processing while
you do your RTK. In the field, you tap Start Now> and begin
your survey without solving a localization. You then submit
the post processing data file to the NGS’ OPUS service and
get back the calculated local coordinate. You then wish to
adjust the survey to match the calculated coordinate for your
base.
• You start a survey with your base on a new autonomous
position. You occupy one or more NGS control monuments
during the survey, but you do not have the data sheet with
the published north, east, elevation coordinate in the field.
You get back to the office and download these data sheets
from the NGS web site, and you wish to solve a localization
using these points as control.