A method of and radio data communication equipment arranged for data exchange by Wide Area Network radio data communication equipment operating as a Radio Base Station applied on a plurality of nautical vessels, and by radio data communication equipment operating as User Equipment applied on a nautical beacon. A radio communication link between the radio data communication equipment of a nautical vessel and a nautical beacon is established when an indication of availability of radio access resources of the radio data communication equipment of a nautical vessel is received by the radio data communication equipment of a nautical beacon and when the radio data communication equipment of a nautical beacon is in an operating position.