For nearly a week after Earhart disappeared radio distress calls were heard on her primary frequencies by many stations around the Pacific. Signals were also heard by members of the general public on their home shortwave sets in several locations around the U.S. and Canada on harmonics of her frequencies. During the Niku VIII expedition we will broadcast simulations of some of the reported distress calls on a frequency close to one of the harmonics using an antenna rigged to simulate the characteristics of the transmitting antenna. Anyone with a shortwave radio is encouraged to listen in and let us know if you picked up the signal.
http://tighar.org/Projects/Earhart/Niku8/dailies/niku8dailies.html