Amelia Earhart of Earhart's interests and passions, especially women's causes. After flying with Earhart, Roosevelt obtained a student permit but did not further pursue her plans to learn to fly. The two friends communicated frequently throughout their lives. Another famous flyer, Jacqueline Cochran, who was considered to be Earhart's greatest rival by both media and the public, also became a confidante and friend during this period. On January 11, 1935, Earhart became the first aviator to fly solo from Honolulu, Hawaii to Oakland, California. Although this transoceanic flight had been attempted by many others, notably by the unfortunate participants in the 1927
Amelia Earhart world flight started, problems with radio reception were noticed while flying across the US; Pan Am technicians may have modified the ventral antenna while the plane was in Miami. At Lae, problems with transmission quality on 6210 kHz were noticed. Once the flight took off from Lae, Lae did not receive radio messages on 6210 kHz (Earhart's daytime frequency) until four hours later (at <time datetime="1937-07-02T14:18+10:00" title="04:18Z">2:18 pm</time>); Lae's last reception was at <time datetime="1937-07-02T17:18+10:00" title="07:18Z">5:18 pm</time> and was a strong signal; Lae received nothing after that; presumably the plane switched to 3105 kHz (Earhart's nighttime frequency). "Itasca" heard Earhart