Very interesting story, to be sure. I'm no firm believer in the TIGHAR hypothesis that Earhart crash-landed and later perished on Gardner Island/Nikumaroro, a remote South Pacific atoll. But I do find the idea intriguing. I first heard about "Betty's notebook" about five years ago and trying to understand how a young schoolgirl in Florida could hear radio transmissions from a remote island in the Pacific gave me my first lesson in propagation.