PBS had a documentary on the life of Emailia Earhart. It showed the
airplane she used. The airplane had a small loop antenna above the head
of the airplane. And I believe a saw a 2-3 vertical antenna behind the
loop antenna.

Does anyone have any information on the types of radios she was using?
Or the radio bands she was transmitting on?

PBS mention that she left behind a 500 khz wire antenna. Somehow she
did make radio contact with a US ship in the Pacific before disappearing.

73, SR