During pipeline measurements it is extremely important to have the precise location of the structures and measurement data on the pipeline route. At distances of many kilometres this can be realized only by GPS equipment. The precise positioning of the insulation defects is particularly important since this way in the event of an excavation the costs of expensive machine work can be significantly decreased..

To carry out these tasks the Trimble Pathfinder ProXRS equipment has proved to be the best solution. The absolute accuracy of this instrument is better than 1 metre. The device continuously receives correction signals from the Omnistar satellite thus the submetre precision is calculated at the very site, and further processing is unnecessary. Also the instrument can be used anywhere in the world and therefore, there is no need for a basis station network.