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In 1923, the
Westinghouse Electric & Manufacturing Co. operated shortwave links to provide for the retransmission of the programming from broadcasting station KDKA in East Pittsburgh, Pennsylvania over its broadcasting stations KDPM in Cleveland, Ohio and WBZ in East Springfield,
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Public domain works must be out of copyright in both the United States and in the source country of the work in order to be hosted on the
Commons. If the work is not a U.S. work, the file
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272://commons.wikimedia.org/File:KDKA-KDPM-WBZ_Shortwave_relay_diagram_(1923).jpg
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Click on a date/time to view the file as it appeared at that time.
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Illustration included on page 674 of the
November 1923 issue of
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indicating the copyright status in the source country.
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Commons is a freely licensed media file repository.
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130:KDKA-KDPM-WBZ Shortwave relay diagram (1923).jpg
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530:KDKA (AM)
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263:PD-1923
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