Arrangement for detecting a position of a handset comprising: a vehicle having a positioning signal receiver for receiving signals of the satellites of a positioning system and an electronic processor which is configured for generating by means of signals received by the positioning signal receiver of the vehicle a local correction signal by means of which the accuracy of a position determined by means of the signals of a positioning signal receiver (40, 68) can be improved; a handset comprising a positioning signal receiver for receiving signals of the satellites of the positioning system and an electronic processor which is configured for receiving signals from the positioning signal receiver of the handset and deriving from these raw position data of the handset; the raw position data of the handset being correctable by means of the local correction signal provided by the processor of the vehicle and the handset being able to be brought to a point that is to be mapped, characterized in that the processor of the handset is programmed to respond to a user input by calculating the position of the handset brought to the point that is to be mapped by means of the position signals of the positioning signal receiver of the handset and the correction signal wirelessly received from the processor of the vehicle and by storing said position for mapping purposes in a memory of the handset or to respond to the user input by deriving raw position data by means of the received position signals of the positioning signal receiver of the handset and by wirelessly transmitting said raw position data to the processor of the vehicle, which processor is programmed to calculate the current position of the handset by means of the local correction signal and the received raw position data of the positioning signal receiver of the handset and to store said current position for mapping purposes in a memory. a vehicle having a positioning signal receiver for receiving signals of the satellites of a positioning system and an electronic processor which is configured for generating by means of signals received by the positioning signal receiver of the vehicle a local correction signal by means of which the accuracy of a position determined by means of the signals of a positioning signal receiver (40, 68) can be improved; a handset comprising a positioning signal receiver for receiving signals of the satellites of the positioning system and an electronic processor which is configured for receiving signals from the positioning signal receiver of the handset and deriving from these raw position data of the handset; the raw position data of the handset being correctable by means of the local correction signal provided by the processor of the vehicle and the handset being able to be brought to a point that is to be mapped, characterized in that the processor of the handset is programmed to respond to a user input by calculating the position of the handset brought to the point that is to be mapped by means of the position signals of the positioning signal receiver of the handset and the correction signal wirelessly received from the processor of the vehicle and by storing said position for mapping purposes in a memory of the handset or to respond to the user input by deriving raw position data by means of the received position signals of the positioning signal receiver of the handset and by wirelessly transmitting said raw position data to the processor of the vehicle, which processor is programmed to calculate the current position of the handset by means of the local correction signal and the received raw position data of the positioning signal receiver of the handset and to store said current position for mapping purposes in a memory.