Echogram deploys SL20 for Polish dock survey
Polish survey company Echogram deployed SL20 for autonomous bathymetric data collection in shallow, confined water around a dock.

Evidence notes
- The survey team planned a lattice route and supervised SL20 from a mobile command station.
- A single-beam echo sounder and RTK GNSS supplied live depth and position data.
- SL20 surveyed close to and beneath piers that were inaccessible to conventional manned boats.