Start a GNSS base

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  • Starting a GPS base is a main operation and the first thing to do when working with a couple of receivers base and rover.

  • The first receiver (base) remains in a fixed position on the ground and sends corrections through radio to a second receiver (rover).

  • The second receiver is free to move on the ground, according to radio range, measuring or staking out positions.

Commands allowing to start a base are only available when a GNSS instrument profile is defined and the profile is for a Base instrument.


  • If the current profile is related to a GPS receiver defined as base, the software shows only the Start base page.

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  • A base can be started in different modes.


  • Known position: the base is started over a point with known coordinates.

  • Current position: the base is started over the current position measured by the GNSS receiver.

  • Last setup: the base is started over the last base setup.

  • Automatic (RTK position): the base is started over a point with known coordinates measured with the same receiver in RTK.