Cape Byron Trust chairperson, Yvonne Stewart, said it was a worldwide annual event in which amateur radio operators set up and operated from lighthouses and lightships around the world.
Ms Stewart said Summerland Amateur Radio Club would be operating at the lighthouse with the aim of making radio contact with as many people as possible.
“The event will serve to promote public awareness of lighthouses and lightships and their need for preservation and restoration, promote amateur radio and foster international goodwill,” she said.
“This is an important event working with the community and linking the historic Cape Byron Lighthouse with other lighthouses and lightships from all over the globe.
“For people who would like to find out more about the workings and history of the Cape Byron Lighthouse, there will also be public guided tours of the lighthouse tower on Tuesdays and Thursdays.”
Bookings can be made by phoning the Cape Byron Lighthouse gift shop on 6685 5955.
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