File:KDKA-KDPM-WBZ Shortwave relay diagram (1923).jpg
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Shortwave relay diagram
Summary edit
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| Description |
English: 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, Massachusetts. |
| Date | |
| Source | Illustration included on page 674 of the November 1923 issue of Science and Invention, as part of the article "Broadcast Relay on 100 Meters" by Howard Allen Duncan. |
| Author | Uncredited magazine article illustration |
Licensing edit
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This work is in the public domain in the United States because it was published (or registered with the U.S. Copyright Office) before January 1, 1929.
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Note: This tag should not be used for sound recordings. |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 11:23, 1 October 2020 | | 700 × 605 (168 KB) | Thomas H. White (talk | contribs) | Better quality scan |
| 01:49, 31 January 2019 |  | 909 × 976 (360 KB) | Thomas H. White (talk | contribs) | User created page with UploadWizard |
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