File:Marconi transatlantic wireless station at Carnarvon, Wales 1917.jpg
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Summary
| Description |
English: Exterior view of the 300 kW transatlantic wireless telegraphy station built in 1916 by the Marconi Wireless Telegraph Co at Carnarvon, Wales. This was the most powerful spark radio transmitter ever built, transmitting commercial radiotelegraphy traffic by Morse code on a frequency of 21.5 kHz at a rate of 200 words per minute to receivers in Tuckerton, New Jersey and the RCA Radio Central station, Long Island, New York. The photo shows the 32 feedlines feeding power from the transmitter to the huge 3,600 ft 32 wire flattop antenna suspended between 400 ft towers. |
| Date | |
| Source | Retrieved 14 April 2018 from Elmer Eustice Bucher (1917) Practical Wireless Telegraphy, Wireless Press, Inc., New York, p. 294, fig. 303 on archive.com |
| Author | Elmer Eustice Bucher |
Licensing
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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.
 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 must have an additional copyright tag indicating the copyright status in the source country.
Note: This tag should not be used for sound recordings. |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 17:59, 1 May 2021 | | 1,103 × 645 (492 KB) | Materialscientist | FFT |
| 09:57, 16 April 2018 |  | 1,113 × 657 (352 KB) | Chetvorno | User created page with UploadWizard |
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