Use of smartphones for determining orientation angles in the field
The purpose of the study is to investigate the feasibility of using smartphones to determine orientation angles in the field, in particular, magnetic azimuths and horizontal angles. The paper also aims to assess the accuracy of measurements performed using built-in magnetometers and to determine the suitability of such devices for orientation tasks when the use of traditional geodetic instruments is impossible or impractical. Methodology. To achieve this goal, an experiment was conducted involving 12 observers using 11 smartphone models from different manufacturers.