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Virtual Reference Station Announced

Trimble has introduced the Virtual Reference Station (VRS,) which allows users to achieve long-range, real-time kinematic (RTK) precision via wireless communications in the field. The VRS enables centimeter-level positioning without the need to set up a local reference station.

The announcement was made on September 20 at the Institute of Navigation GPS 2000 conference in Salt Lake City.

The VRS, developed by Spectra Precision’s subsidiary TerraSat, consists of software and a network of Trimble GPS receivers communicating with a control center. The VRS software uses the data to calculate GPS error corrections that are applicable over a wide area. Their error corrections are transmitted via wireless communication devices (radios or cellular telephones) to users in the field within the network area. Users can retrieve stored GPS correction data from the control center via the Internet for post-processing.

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