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The calibration of the geodetic apparatus is nowadays viewed as common. It is recommended to test it as soon as the new apparatus has been purchased, as it is necessary to find out whether the apparatus meets the parameters declared by the manufacturer. It is also necessary to test it at regular intervals (during the period of two or three years), after it has been repaired, or if any deviation has been found during the process of surveying. The testing of geodetics apparatus are preceded in such a way they corres...