All data and telecommunications generated in connection with air traffic in Danish airspace is recorded and stored in a way that resembles the “black box” found aboard aircraft and ships. With the inauguration of Naviair’s new air traffic management system, a completely new recording system for speech communication has been procured, and significant upgrades have also been made to the equipment for recording other data.

Data recording takes place by means of a Radar Recording System (RARS). The system is used to record radar data, flight plan data and other data traffic in connection with air traffic management in Danish airspace and at Copenhagen Airport. This data is used in connection with the investigation of air traffic events, complaints of noice, troubleshooting of hardware, tuning of radars and the SERIS en route accounting system. Recording of speech communication takes place by means of a Legal Voice Recorder System, which is used for recording radio channels and telephone conversations. The equipment was procured with a capacity of 384 analog channels and consists of two separate individual servers with analog and digital input cards for converting input to digital data. The entire recorded material is archived on built-in hard drives and is maintained at the servers for a minimum of 30 days.