Interesting. Both your picture and the earlier drawings make no mention of a transmitting antenna which I think I saw decades ago on “In Search Of” running the length of the aircraft on the underside. At least I think it was this show, that showed a “puff” emitted from underneath during the grassy-field take-off just at the tail, which looked convincingly like the antenna end being popped lose. This was the last leg of her fatal flight.
I think the idea was that Earhart could transmit all she wanted, but no one could hear her. The attempts to contact receivers at the landing location were doomed to failure.
Looks like a wonderful aircraft. She could have used less of an aircraft and hired a navigator who wasn’t an alcoholic.