UAS Electronic Identification

Emerging regulations in many countries require unmanned aircraft (also known as drones, UAV, UAS, RPAS, or r/c models) to be identified remotely by electronic means, in combination with a UAS registry database. The benefits include public security, safety, and accountability.

The principle of remote electronic identification (eID) is that a cooperative UAS regularly broadcasts a unique identifier and the current three-dimensional position through a radio frequency message. This then enables authorized parties to detect, identify, locate and track UAS anywhere at any time and at a reasonable distance, also in the absence of network connectivity or other infrastructure. Reliable electronic identification is also essential for airspace and traffic management, be it UTMS or a safe integration into current airspace used by manned aviation. Electronic identification is a key pillar in SESAR‘s U-space foundation services.

The open FLARM UAS Electronic ID standard specifies the technical implementation of such eID. It is proven as it builds on the existing FLARM protocol layers with tens of thousands of airborne installations around the world. It is designed to be simple to implement and the required hardware inexpensive to be built by professional manufacturers in volumes. The implementation does neither require a license from or a royalty to FLARM Technology Ltd.

Send us an email request to reserve a 4-character manufacturer ID, and give a list of 5 codes with your priority. To ease implementation and allow faster time-to-market, we commercially offer reference implementations, compliance assistance, testing, and engineering services. Contact us if interested, and be specific and detailed enough about your needs.


The FLARM system was invented by pilots and launched through a crowd-funding campaign in 2004. It has since gained fast acceptance in the entire aeronautical community as a safe, efficient and affordable technology that works.

FLARM is the state-of-the-art traffic information, collision avoidance and remote identification technology used in general aviation, installed on over 35’000 manned aircraft and already tens of thousands of UAS. FLARM is the most popular solution in the lower airspace outside major airports: around half of Europe’s manned aircraft plus countless other airspace users such as UAS, r/c model aircraft, and para/hang-gliders are equipped with it.

Several FLARM implementations and interfaces exist for UAS, amongst them for PX4, MAVLink, Dronecode, TBS Crossfire, and several ground control systems (GCS). FLARM products, solutions and value-added services are globally available from many vendors under license.

FLARM is a truly cooperative, real-time, low-latency, scalable V2V and V2X communication technology. Key to the design is the ability for synchronous software and protocol updates to ensure future innovation, and the use of encryption to enhance integrity, safety and privacy.

FLARM’s unique technology is also applied to other industries, e.g. high-speed vehicle safety on Daimler’s automotive test tracks, mining vehicle safety and fleet management solutions from Hexagon Mining and Leica Geosystems.