"The Amateur Radio Lighthouse Society" and "The AM Radio Network's" "Expedition to Thomas Point Shoal Lighthouse" in Chesapeake Bay, MD commemorated the history of lighthouses with a vintage special event station using the call sign K3L.Britain's "Vintage and Military Amateur Radio Society" , affiliated with the Radio Society of Great Britain, coordinates regular on-air "nets" where enthusiasts gather as well as massive technical files for the benefit of members.