Presents the results and findings of experimental studies of reflective characteristics for individual systems «total station – reflective sheet». For example, the geodesic marking network at object «Construction of the 2nd stage of the Mariinsky theatre, St.-Petersburg» peculiarities of the development of geodetic marking networks, fixed reflective sheet. In particular in the framework of the method of indirect trilateration the necessity of planning the locations of the total station (stations), the algorithm of search data stations and presents the results of the use of this algorithm for the considered network.