Furthest maritime broadband transmission (no satellite)
Arnaud Disant, Frank O'Donovan, Robin Therond, Steven Hogan, Jean-Christophe Faivre, Sinead Furlong, Roddy O'Connor, Brian O'Kane, Théophile Buyssens, Raphael Paulello, ENCOMS / SEA-Tech, Commissionners of Irish Lights, Mainport, OSV Ocean Spey crew
19.4 nautical mile(s)
Ireland (Cork)

The furthest maritime broadband transmission (no satellite) is 19.4 nautical miles (35.92 km) and was achieved by Arnaud Disant and SEA-Tech (both Ireland) in Cork, Ireland, on 6 June 2018.

This record was set to raise awareness on alternative marine data-communication, crew welfare and the possibility to give a second life cycle to lighthouses across the world.