Base Shift - CHC i80 User Manual

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6.5. B
ASE SHIFT
Typically, the Real-time kinematic (RTK) operation requires a data link to
send observations or corrections from the base station to the rover, and
then the rover will calculates its position in real time.
Within a project, when the base receiver is restarted or moved, the base
coordinated system will shift each time the position of base station is
changed. Normally, the coordinates determined by the base station that set
up on a control point should be in the same coordinate system. However,
coordinates determined by the base station that set up on an autonomous
point should be carried out a base shift, which provided by CHC LandStar 6
software, to keep their base station coordinate the same as the initial
coordinate system.
Notes – To perform the base shift, make sure that the two base stations have
been linked together by at least one common point that sharing with the
same position, which means that the common point not only has the
coordinate determined by the initial coordinate system, but also own the
coordinate surveyed from another base coordinate system that need to be
shifted.
To perform a base shift:
1. In the main menu, tap Survey → tap Base Shift.
2. Tap button next to the GNSS Point field to select the common
point surveyed from the base coordinate system that need to be
i80 GNSS Receiver User Guide
6. Survey with LandStar 6 software
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