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Altitude Requirements

Within the Remote Operating Area are two areas of operation:

Visual Line of Sight (VLOS) altitudes from SFC- 3,500 AGL


Beyond Visual Line of Sight (BVLOS) from 1,00 AGL – 10,000 MSL

Technical Requirements

The SkyVision Ground-Based Detect and Avoid (GBDAA) system at Springfield Airport in Ohio is used to enable beyond-visual-line-of-sight (BVLOS) operations of UAS. This requires that participating UA be integrated onto the GBDAA displays so that the pilot-in-command (PIC) can effectively see and avoid other aircraft. Since the radars that support the SkyVision system are not designed to detect small unmanned aircraft, participating UAS telemetry is captured directly and the necessary data is extracted and passed to SkyVision.

The Universal Autopilot Translator (UAT) is designed as an interface between the users’ telemetry (which are encoded with one of many existing message protocols) and the SkyVision system itself. The UAT receives and reformats the required messages into a standard ASTRIX CAT62 message to be made available on the GBDAA network.

The solution chosen at Springfield is to monitor the telemetry between the UA and the associated ground control station (GCS), extracting the data required by the SkyVision tracker to establish and monitor a track for each UA. The UAT is a program that runs between the SkyVision system and one or more UAS, receiving telemetry from the UAS and translating from the message protocol in use by that autopilot/GCS pair into Asterix-062, a format readable by SkyVision.