Radio on the Byrd and Wilkins Planes
WHD! WHD!” Early on the morning of January 25 Fred G. Roebuck, operator at the Mussel Rock radio station, San Francisco, Calif., heard that call repeated over and over. From knowledge of the sending and the tone of the apparatus he could have identified it as Byrd’s steamer, the City of New York, even had the sender not given his signature.
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