File:Nauen radiotelegraphy station, Nauen, Germany 1906.png

From Wikimedia Commons, the free media repository
Jump to navigation Jump to search

Original file (427 × 735 pixels, file size: 51 KB, MIME type: image/png)

Captions

Captions

Antenna mast and building of Nauen Radiotelegraphy Station, Germany

Summary

[edit]
Description
English: The antenna mast and transmitter building of Germany's first high power radio transmitter, Nauen Transmitter Station, Nauen, Germany, just after it was built in 1906. Inside the building was a 10 kW spark gap radiotelegraphy transmitter powered by a 25 kW generator turned by an oil engine. This drives an umbrella antenna consisting of a 300 ft. steel mast with a capacitive topload of 162 cables radiating from the top. The station had a reception range of about 3500 kilometers (2300 miles)
Date
Source Retrieved 25 February 2020 from C. C. F. Monckton (1908) Radio-Telegraphy, D. Van Nostrand Co., New York, p. 226, fig. 153 on Google Books.
Author C. C. F. Monckton

Licensing

[edit]
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.

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.PD-1923Public domain in the United States//commons.wikimedia.org/wiki/File:Nauen_radiotelegraphy_station,_Nauen,_Germany_1906.png

File history

Click on a date/time to view the file as it appeared at that time.

Date/TimeThumbnailDimensionsUserComment
current22:15, 25 February 2020Thumbnail for version as of 22:15, 25 February 2020427 × 735 (51 KB)Chetvorno (talk | contribs)User created page with UploadWizard

There are no pages that use this file.

Metadata