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Abstract
In order to carry out survey works conducted using the GNSS means of survey data acquisition, the minimum of a pair of GNSS equipment must be used, in which one unit is known as the base while the other unit(s) are referred to as rover. Each unit has to be set on a station or point, the station over which the base unit is being set is called the base station while the rover is being set over points of unknown attributes (coordinates). There are several modes of operating the rover, some common modes are the static and RTK modes. Nevertheless, whatever the mode of operation is, the accuracy and reliability of the results obtained from all jobs connected to the base station highly depends on the accuracy of the base station parameters and attributes. Therefore, this study was executed to carry out calibration on three (3) different base stations, in order to make them fit for use with high accuracy.
