WNBC-AM early coaxial feedline

Forfatter/Opretter:

Edmund Laport

Kredit:

Retrieved March 28, 2015 from Edmund A. Laport, Radio Antenna Engineering, McGraw-Hill Publishing Co., New York, 1952, p. 464, fig 4.75 on David Platt's webpage for this book

Shortlink:

https://dkwiki.dk/b/52961

kilde:

Wikimedia Commons

størrelse:

722 x 621 Pixel (106345 Bytes)

beskrivelse:

Early coaxial cable feedline for 50kW AM radio station WNBC, Port Washington, New York.

Licens:

Public domain

Kommentar på licensen:

The copyright for this book Radio Antenna Engineering should have been renewed in 1980. A search of the US Copyright Office online database covering 1978 to the present shows no copyright renewal for that author name or title. Therefore the copyright was not renewed and the book is in the public domain.