Possibly relevant standards for boat / yacht equipment.
CISPR 25 - automotive and boats. Designed for not interfering with the broadcast radio receiver in a car.
CISPR 12 - For the protection of radio receivers not on the boat.
IEC / EN 60945 - Maritime Navigation and Radiocommunication Equipment and Systems - General Requirements - Methods of Testing and Required Test Results
IEC 60533 - “ELECTRICAL AND ELECTRONIC INSTALLATIONS IN SHIPS – ELECTROMAGNETIC COMPATIBILITY (EMC) – SHIPS WITH A METALLIC HULL”
“CISPR 12 is used as a regulatory standard by many countries. CISPR 25 is an engineering standard that is used mainly by vehicle manufacturers and not for regulatory purposes.”
LED lights interfering with nearby VHF receiver aerials.