Cambridge Sensoriis is pleased to announce a firmware update to our patented system for precision landing and tethering – Active Radar Cooperating (ARCTM) – which can be used on a static or moving platform/vehicle, including vessels at sea.
Available for download from December 2025, ARCTM firmware v1.2 is our latest update as we continue to improve the functionality and performance of autonomous landing and tethering.
ARCTM firmware v1.2 includes:
- Cross-aligned range limitation removed – now full yaw flexibility on approach to the landing pad
- Improved flight controller ‘operator’ status messages – we have simplified the status message that ARC sends to the GCS. The UAV pilot will see either “ARC:ACTIVE” or “ARC:SEARCHING” on their console
- “Bad Lidar Health” message in ArduPilot Mission Planner has been silenced
- Link stability improved – resulting in a smoother customer experience.
ARCTM
Sensoriis’ patented radar technology Active Radars Cooperating (ARCTM) provides precise landing and tethering capabilities using direct radar range measurements regardless of the conditions. Each ARCTM device includes a Primary radar on the UAV and ground-based Secondary radars. They are configured with a code, ensuring that secondary devices are only interrogated by an associated airborne primary device. For further details on ARCTM please visit https://www.cambsensoriis.com/products/active-radar-cooperating-arc/
For further details about the ARC firmware release and how we can support your autonomous tethering and landing applications please contact the team: support@cambsensoriis.com