Abstract: A remote identification device (10) for a multirotor (1) comprises an EGNOS enabled GPS receiver (11) for determining a three-dimensional position (P) of the aircraft (1) and a radio transmitter (12) operating at 2.4 GHz for periodically transmitting a data package (D) comprising the determined three-dimensional position (P) of the aircraft (1), a unique identifier (ID) of the aircraft (1), and a timestamp. The transmitted data packages (D) comprise first types (D1) carrying the full information as well as second types (D2) carrying only relative position data. All data packages (D) further comprise ECC data and are cryptographically signed. Remote identification devices (10, 10?) on different aircrafts (1,1?) together with the ground based receiver station (ATC) form a mesh-network by retransmitting foreign data packages. Thus, aircrafts (1,1?) are more easily identified and the data packages can be efficiently used for aircraft registration and law enforcement.