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File:Umbrella antenna at Nauen wireless station, Germany 1915.png

Umbrella_antenna_at_Nauen_wireless_station,_Germany_1915.png (771 × 213 pixels, file size: 23 KB, MIME type: image/png)

Summary

Description
English: Umbrella antenna at Nauen Wireless Station, Germany's largest radiotelegraph station, Nauen, Germany, built in 1911. It transmitted at a frequency of around 150 kHz.
Date
Source Retrieved 24 August 2024 from Zenneck, Jonathan (1915) Wireless Telegraphy, McGraw-Hill Book Co., New York, p.152, fig.186
Author Jonathan Zenneck

Licensing

Public domain
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.PD-1923Public domain in the United States//commons.wikimedia.org/wiki/File:Umbrella_antenna_at_Nauen_wireless_station,_Germany_1915.png
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Captions

Umbrella antenna at Nauen Station

Items portrayed in this file

depicts

umbrella antenna

media type

image/png

File history

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Date/TimeThumbnailDimensionsUserComment
current21:58, 24 August 2024Thumbnail for version as of 21:58, 24 August 2024771 × 213 (23 KB)ChetvornoUploaded a work by Jonathan Zenneck from Retrieved 24 August 2024 from [https://books.google.com/books?id=0DFLAAAAMAAJ&pg=PA152 Zenneck, Jonathan (1915) Radio Telegraphy, McGraw-Hill Book Co.], p.152, fig.186 with UploadWizard

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